{"id":30234,"date":"2026-07-20T14:28:28","date_gmt":"2026-07-20T06:28:28","guid":{"rendered":"https:\/\/www.cnspd.com\/?p=30234"},"modified":"2026-07-21T11:20:09","modified_gmt":"2026-07-21T03:20:09","slug":"should-an-spd-be-replaced-after-a-lightning-strike","status":"publish","type":"post","link":"https:\/\/www.cnspd.com\/id\/replace-spd-after-lightning-strike\/","title":{"rendered":"Apakah SPD Harus Diganti Setelah Petir Menghantam?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"30234\" class=\"elementor elementor-30234\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c7c7c74 e-flex e-con-boxed e-con e-parent\" data-id=\"c7c7c74\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-332826f elementor-widget elementor-widget-html\" data-id=\"332826f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div id=\"ly48-spd-after-lightning\" class=\"ly48-spd-page\">\r\n\r\n<style>\r\n\/* =========================================================\r\n   LEEYEE Technical Article\r\n   Should an SPD Be Replaced After a Lightning Strike?\r\n   The WordPress template already provides the H1.\r\n========================================================= *\/\r\n\r\n#ly48-spd-after-lightning {\r\n    --ly48-blue: #004898;\r\n    --ly48-blue-dark: #073664;\r\n    --ly48-blue-soft: #eef6fd;\r\n    --ly48-blue-line: #c8def1;\r\n    --ly48-heading: #102c46;\r\n    --ly48-text: #263b4e;\r\n    --ly48-muted: #5b7082;\r\n    --ly48-border: #dce5ed;\r\n    --ly48-bg: #f6f9fc;\r\n    --ly48-white: #ffffff;\r\n\r\n    --ly48-green: #157a50;\r\n    --ly48-green-soft: #edf8f3;\r\n    --ly48-amber: #9a5b00;\r\n    --ly48-amber-soft: #fff7e7;\r\n    --ly48-red: #b42318;\r\n    --ly48-red-soft: #fff1f0;\r\n\r\n    --ly48-shadow: 0 10px 28px rgba(16, 44, 70, 0.08);\r\n\r\n    width: 100%;\r\n    color: var(--ly48-text);\r\n    font-family: inherit;\r\n    font-size: 17px;\r\n    line-height: 1.72;\r\n}\r\n\r\n#ly48-spd-after-lightning *,\r\n#ly48-spd-after-lightning *::before,\r\n#ly48-spd-after-lightning *::after {\r\n    box-sizing: border-box;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-shell {\r\n    width: min(1160px, calc(100% - 48px));\r\n    margin: 0 auto;\r\n    padding: 16px 0 72px;\r\n}\r\n\r\n#ly48-spd-after-lightning h2,\r\n#ly48-spd-after-lightning h3,\r\n#ly48-spd-after-lightning h4 {\r\n    margin-top: 0;\r\n    color: var(--ly48-heading);\r\n    line-height: 1.3;\r\n}\r\n\r\n#ly48-spd-after-lightning h2 {\r\n    margin-bottom: 18px;\r\n    font-size: clamp(28px, 3vw, 39px);\r\n    letter-spacing: -0.025em;\r\n}\r\n\r\n#ly48-spd-after-lightning h3 {\r\n    margin-bottom: 10px;\r\n    font-size: 22px;\r\n}\r\n\r\n#ly48-spd-after-lightning p {\r\n    margin: 0 0 16px;\r\n}\r\n\r\n#ly48-spd-after-lightning a {\r\n    color: var(--ly48-blue);\r\n    text-decoration-thickness: 1px;\r\n    text-underline-offset: 3px;\r\n}\r\n\r\n#ly48-spd-after-lightning strong {\r\n    color: var(--ly48-heading);\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-section {\r\n    margin-top: 64px;\r\n    scroll-margin-top: 100px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-kicker {\r\n    display: inline-flex;\r\n    align-items: center;\r\n    gap: 8px;\r\n    margin-bottom: 10px;\r\n    color: var(--ly48-blue);\r\n    font-size: 13px;\r\n    font-weight: 800;\r\n    letter-spacing: 0.09em;\r\n    text-transform: uppercase;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-kicker::before {\r\n    width: 28px;\r\n    height: 3px;\r\n    border-radius: 999px;\r\n    background: var(--ly48-blue);\r\n    content: \"\";\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-ref {\r\n    margin-left: 2px;\r\n    font-size: 0.72em;\r\n    line-height: 1;\r\n    vertical-align: super;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-ref a {\r\n    font-weight: 750;\r\n    text-decoration: none;\r\n}\r\n\r\n\/* Intro *\/\r\n#ly48-spd-after-lightning .ly48-intro {\r\n    padding-top: 6px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-lead {\r\n    max-width: 930px;\r\n    margin: 0;\r\n    color: #344d62;\r\n    font-size: 21px;\r\n    line-height: 1.65;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-editorial {\r\n    display: flex;\r\n    flex-wrap: wrap;\r\n    gap: 9px 20px;\r\n    margin-top: 22px;\r\n    color: var(--ly48-muted);\r\n    font-size: 13px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-editorial span {\r\n    display: inline-flex;\r\n    align-items: center;\r\n    gap: 7px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-editorial span::before {\r\n    width: 7px;\r\n    height: 7px;\r\n    border-radius: 50%;\r\n    background: var(--ly48-blue);\r\n    content: \"\";\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-safety-note {\r\n    display: grid;\r\n    grid-template-columns: 34px minmax(0, 1fr);\r\n    gap: 14px;\r\n    max-width: 950px;\r\n    margin-top: 23px;\r\n    padding: 17px 19px;\r\n    border: 1px solid var(--ly48-blue-line);\r\n    border-left: 5px solid var(--ly48-blue);\r\n    border-radius: 11px;\r\n    background: var(--ly48-blue-soft);\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-safety-icon {\r\n    display: grid;\r\n    width: 34px;\r\n    height: 34px;\r\n    place-items: center;\r\n    border-radius: 50%;\r\n    background: var(--ly48-blue);\r\n    color: #fff;\r\n    font-weight: 850;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-safety-note p {\r\n    margin: 0;\r\n    font-size: 15px;\r\n}\r\n\r\n\/* Navigation *\/\r\n#ly48-spd-after-lightning .ly48-jump {\r\n    margin-top: 30px;\r\n    padding: 21px;\r\n    border: 1px solid var(--ly48-border);\r\n    border-radius: 14px;\r\n    background: #fff;\r\n    box-shadow: var(--ly48-shadow);\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-jump-title {\r\n    display: block;\r\n    margin-bottom: 13px;\r\n    color: var(--ly48-heading);\r\n    font-size: 15px;\r\n    font-weight: 800;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-jump-links {\r\n    display: flex;\r\n    flex-wrap: wrap;\r\n    gap: 9px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-jump a {\r\n    display: inline-flex;\r\n    padding: 8px 13px;\r\n    border: 1px solid var(--ly48-blue-line);\r\n    border-radius: 999px;\r\n    background: #fff;\r\n    color: var(--ly48-blue-dark);\r\n    font-size: 14px;\r\n    font-weight: 700;\r\n    text-decoration: none;\r\n    transition:\r\n        transform 0.2s ease,\r\n        border-color 0.2s ease,\r\n        background 0.2s ease;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-jump a:hover {\r\n    transform: translateY(-1px);\r\n    border-color: var(--ly48-blue);\r\n    background: var(--ly48-blue-soft);\r\n}\r\n\r\n\/* Quick answer *\/\r\n#ly48-spd-after-lightning .ly48-quick {\r\n    position: relative;\r\n    overflow: hidden;\r\n    margin-top: 40px;\r\n    padding: 31px;\r\n    border: 1px solid #b9d4eb;\r\n    border-radius: 18px;\r\n    background:\r\n        linear-gradient(\r\n            135deg,\r\n            rgba(0, 72, 152, 0.09),\r\n            rgba(255, 255, 255, 0.98) 55%\r\n        ),\r\n        #fff;\r\n    box-shadow: var(--ly48-shadow);\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-quick::after {\r\n    position: absolute;\r\n    top: -80px;\r\n    right: -75px;\r\n    width: 200px;\r\n    height: 200px;\r\n    border-radius: 50%;\r\n    background: rgba(0, 72, 152, 0.055);\r\n    content: \"\";\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-quick h2,\r\n#ly48-spd-after-lightning .ly48-quick p {\r\n    position: relative;\r\n    z-index: 1;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-quick h2 {\r\n    margin-bottom: 13px;\r\n    font-size: 30px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-answer {\r\n    max-width: 930px;\r\n    color: var(--ly48-heading);\r\n    font-size: 20px;\r\n    font-weight: 650;\r\n    line-height: 1.6;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-answer:last-child {\r\n    margin-bottom: 0;\r\n}\r\n\r\n\/* Decision cards *\/\r\n#ly48-spd-after-lightning .ly48-decision-grid {\r\n    display: grid;\r\n    grid-template-columns: repeat(3, minmax(0, 1fr));\r\n    gap: 18px;\r\n    margin-top: 25px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-decision-card {\r\n    padding: 23px;\r\n    border: 1px solid var(--ly48-border);\r\n    border-top-width: 5px;\r\n    border-radius: 14px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-decision-card h3 {\r\n    font-size: 20px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-decision-card p {\r\n    margin-bottom: 0;\r\n    font-size: 15px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-decision-card.is-red {\r\n    border-top-color: var(--ly48-red);\r\n    background: var(--ly48-red-soft);\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-decision-card.is-amber {\r\n    border-top-color: var(--ly48-amber);\r\n    background: var(--ly48-amber-soft);\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-decision-card.is-green {\r\n    border-top-color: var(--ly48-green);\r\n    background: var(--ly48-green-soft);\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-status {\r\n    display: inline-flex;\r\n    align-items: center;\r\n    gap: 8px;\r\n    margin-bottom: 12px;\r\n    font-size: 12px;\r\n    font-weight: 850;\r\n    letter-spacing: 0.065em;\r\n    text-transform: uppercase;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-status-dot {\r\n    width: 10px;\r\n    height: 10px;\r\n    border-radius: 50%;\r\n}\r\n\r\n#ly48-spd-after-lightning .is-red .ly48-status {\r\n    color: var(--ly48-red);\r\n}\r\n\r\n#ly48-spd-after-lightning .is-red .ly48-status-dot {\r\n    background: var(--ly48-red);\r\n}\r\n\r\n#ly48-spd-after-lightning .is-amber .ly48-status {\r\n    color: var(--ly48-amber);\r\n}\r\n\r\n#ly48-spd-after-lightning .is-amber .ly48-status-dot {\r\n    background: var(--ly48-amber);\r\n}\r\n\r\n#ly48-spd-after-lightning .is-green .ly48-status {\r\n    color: var(--ly48-green);\r\n}\r\n\r\n#ly48-spd-after-lightning .is-green .ly48-status-dot {\r\n    background: var(--ly48-green);\r\n}\r\n\r\n\/* Tables *\/\r\n#ly48-spd-after-lightning .ly48-table-wrap {\r\n    width: 100%;\r\n    margin-top: 23px;\r\n    overflow-x: auto;\r\n    border: 1px solid var(--ly48-border);\r\n    border-radius: 14px;\r\n    background: #fff;\r\n    box-shadow: 0 8px 24px rgba(16, 44, 70, 0.05);\r\n    -webkit-overflow-scrolling: touch;\r\n}\r\n\r\n#ly48-spd-after-lightning table {\r\n    width: 100%;\r\n    min-width: 810px;\r\n    margin: 0;\r\n    border-collapse: collapse;\r\n}\r\n\r\n#ly48-spd-after-lightning th,\r\n#ly48-spd-after-lightning td {\r\n    padding: 15px 17px;\r\n    border-bottom: 1px solid var(--ly48-border);\r\n    text-align: left;\r\n    vertical-align: top;\r\n}\r\n\r\n#ly48-spd-after-lightning th {\r\n    background: var(--ly48-blue-dark);\r\n    color: #fff;\r\n    font-size: 14px;\r\n    font-weight: 800;\r\n}\r\n\r\n#ly48-spd-after-lightning td {\r\n    font-size: 15px;\r\n    line-height: 1.55;\r\n}\r\n\r\n#ly48-spd-after-lightning tbody tr:nth-child(even) td {\r\n    background: #f9fbfd;\r\n}\r\n\r\n#ly48-spd-after-lightning tr:last-child td {\r\n    border-bottom: 0;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-action-red {\r\n    color: var(--ly48-red);\r\n    font-weight: 800;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-action-amber {\r\n    color: var(--ly48-amber);\r\n    font-weight: 800;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-action-green {\r\n    color: var(--ly48-green);\r\n    font-weight: 800;\r\n}\r\n\r\n\/* Images *\/\r\n#ly48-spd-after-lightning .ly48-figure {\r\n    width: 100%;\r\n    margin: 29px 0 9px;\r\n    overflow: hidden;\r\n    border: 1px solid var(--ly48-border);\r\n    border-radius: 16px;\r\n    background: #fff;\r\n    box-shadow: var(--ly48-shadow);\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-figure img {\r\n    display: block;\r\n    width: 100%;\r\n    height: auto;\r\n    margin: 0;\r\n    background: #fff;\r\n    object-fit: contain;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-figure figcaption {\r\n    padding: 13px 18px;\r\n    border-top: 1px solid var(--ly48-border);\r\n    background: #f8fafc;\r\n    color: var(--ly48-muted);\r\n    font-size: 14px;\r\n    line-height: 1.55;\r\n    text-align: center;\r\n}\r\n\r\n\/* Warning and note boxes *\/\r\n#ly48-spd-after-lightning .ly48-warning {\r\n    display: grid;\r\n    grid-template-columns: 42px minmax(0, 1fr);\r\n    gap: 15px;\r\n    margin-top: 24px;\r\n    padding: 20px;\r\n    border: 1px solid #efc4c0;\r\n    border-radius: 12px;\r\n    background: var(--ly48-red-soft);\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-warning-icon {\r\n    display: grid;\r\n    width: 42px;\r\n    height: 42px;\r\n    place-items: center;\r\n    border-radius: 10px;\r\n    background: var(--ly48-red);\r\n    color: #fff;\r\n    font-size: 20px;\r\n    font-weight: 900;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-warning h3 {\r\n    margin-bottom: 5px;\r\n    color: #7f1d16;\r\n    font-size: 19px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-warning p {\r\n    margin: 0;\r\n    color: #67332f;\r\n    font-size: 15px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-separation-note {\r\n    margin-top: 23px;\r\n    padding: 18px 20px;\r\n    border-left: 5px solid var(--ly48-blue);\r\n    border-radius: 10px;\r\n    background: var(--ly48-blue-soft);\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-separation-note p {\r\n    margin: 0;\r\n    font-size: 15px;\r\n}\r\n\r\n\/* Compact inspection *\/\r\n#ly48-spd-after-lightning .ly48-inspection-grid {\r\n    display: grid;\r\n    grid-template-columns: repeat(2, minmax(0, 1fr));\r\n    gap: 14px;\r\n    margin-top: 23px;\r\n    counter-reset: ly48-check;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-inspection-item {\r\n    position: relative;\r\n    min-height: 112px;\r\n    padding: 19px 19px 19px 68px;\r\n    border: 1px solid var(--ly48-border);\r\n    border-radius: 12px;\r\n    background: #fff;\r\n    counter-increment: ly48-check;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-inspection-item::before {\r\n    position: absolute;\r\n    top: 19px;\r\n    left: 18px;\r\n    display: grid;\r\n    width: 36px;\r\n    height: 36px;\r\n    place-items: center;\r\n    border-radius: 50%;\r\n    background: var(--ly48-blue);\r\n    color: #fff;\r\n    content: counter(ly48-check);\r\n    font-size: 14px;\r\n    font-weight: 850;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-inspection-item h3 {\r\n    margin-bottom: 5px;\r\n    font-size: 18px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-inspection-item p {\r\n    margin: 0;\r\n    font-size: 14px;\r\n    line-height: 1.55;\r\n}\r\n\r\n\/* Two-column panels *\/\r\n#ly48-spd-after-lightning .ly48-two-col {\r\n    display: grid;\r\n    grid-template-columns: repeat(2, minmax(0, 1fr));\r\n    gap: 19px;\r\n    margin-top: 23px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-panel {\r\n    padding: 24px;\r\n    border: 1px solid var(--ly48-border);\r\n    border-radius: 14px;\r\n    background: #fff;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-panel.is-positive {\r\n    border-top: 5px solid var(--ly48-green);\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-panel.is-limited {\r\n    border-top: 5px solid var(--ly48-amber);\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-list {\r\n    margin: 0;\r\n    padding: 0;\r\n    list-style: none;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-list li {\r\n    position: relative;\r\n    margin-bottom: 10px;\r\n    padding-left: 26px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-list li:last-child {\r\n    margin-bottom: 0;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-list li::before {\r\n    position: absolute;\r\n    top: 1px;\r\n    left: 0;\r\n    color: var(--ly48-blue);\r\n    content: \"\u2713\";\r\n    font-weight: 900;\r\n}\r\n\r\n#ly48-spd-after-lightning .is-limited .ly48-list li::before {\r\n    color: var(--ly48-amber);\r\n    content: \"!\";\r\n}\r\n\r\n\/* Manufacturer note *\/\r\n#ly48-spd-after-lightning .ly48-manufacturer-note {\r\n    display: grid;\r\n    grid-template-columns: 150px minmax(0, 1fr);\r\n    gap: 25px;\r\n    align-items: start;\r\n    margin-top: 26px;\r\n    padding: 27px;\r\n    border: 1px solid var(--ly48-blue-line);\r\n    border-radius: 16px;\r\n    background:\r\n        linear-gradient(\r\n            135deg,\r\n            rgba(0, 72, 152, 0.08),\r\n            rgba(255, 255, 255, 0.96)\r\n        );\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-manufacturer-label {\r\n    padding: 14px;\r\n    border-radius: 12px;\r\n    background: var(--ly48-blue);\r\n    color: #fff;\r\n    font-size: 13px;\r\n    font-weight: 850;\r\n    letter-spacing: 0.065em;\r\n    line-height: 1.45;\r\n    text-align: center;\r\n    text-transform: uppercase;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-manufacturer-note h3 {\r\n    margin-bottom: 8px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-manufacturer-note p:last-child {\r\n    margin-bottom: 0;\r\n}\r\n\r\n\/* Replacement scope *\/\r\n#ly48-spd-after-lightning .ly48-scope-grid {\r\n    display: grid;\r\n    grid-template-columns: repeat(3, minmax(0, 1fr));\r\n    gap: 18px;\r\n    margin-top: 24px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-scope-card {\r\n    padding: 23px;\r\n    border: 1px solid var(--ly48-border);\r\n    border-radius: 14px;\r\n    background: #fff;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-scope-number {\r\n    display: grid;\r\n    width: 38px;\r\n    height: 38px;\r\n    margin-bottom: 14px;\r\n    place-items: center;\r\n    border-radius: 10px;\r\n    background: var(--ly48-blue-soft);\r\n    color: var(--ly48-blue);\r\n    font-weight: 850;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-scope-card p {\r\n    margin-bottom: 0;\r\n    font-size: 15px;\r\n}\r\n\r\n\/* Spare confirmation *\/\r\n#ly48-spd-after-lightning .ly48-checklist-grid {\r\n    display: grid;\r\n    grid-template-columns: 1.08fr 0.92fr;\r\n    gap: 21px;\r\n    margin-top: 24px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-checklist,\r\n#ly48-spd-after-lightning .ly48-photo-box {\r\n    padding: 25px;\r\n    border-radius: 14px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-checklist {\r\n    border: 1px solid var(--ly48-border);\r\n    background: #fff;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-checklist ul {\r\n    display: grid;\r\n    grid-template-columns: repeat(2, minmax(0, 1fr));\r\n    gap: 9px 18px;\r\n    margin: 17px 0 0;\r\n    padding: 0;\r\n    list-style: none;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-checklist li {\r\n    position: relative;\r\n    padding-left: 24px;\r\n    font-size: 15px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-checklist li::before {\r\n    position: absolute;\r\n    top: 1px;\r\n    left: 0;\r\n    color: var(--ly48-green);\r\n    content: \"\u25a1\";\r\n    font-size: 18px;\r\n    font-weight: 800;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-photo-box {\r\n    border: 1px solid var(--ly48-blue-line);\r\n    background: var(--ly48-blue-soft);\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-photo-box ul {\r\n    margin: 12px 0 0;\r\n    padding-left: 20px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-photo-box li {\r\n    margin-bottom: 7px;\r\n    font-size: 15px;\r\n}\r\n\r\n\/* Application cards *\/\r\n#ly48-spd-after-lightning .ly48-application-grid {\r\n    display: grid;\r\n    grid-template-columns: repeat(2, minmax(0, 1fr));\r\n    gap: 17px;\r\n    margin-top: 23px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-application-card {\r\n    padding: 22px;\r\n    border: 1px solid var(--ly48-border);\r\n    border-radius: 13px;\r\n    background: #fff;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-application-card h3 {\r\n    font-size: 19px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-application-card p {\r\n    margin-bottom: 0;\r\n    font-size: 15px;\r\n}\r\n\r\n\/* CTA *\/\r\n#ly48-spd-after-lightning .ly48-cta {\r\n    display: grid;\r\n    grid-template-columns: minmax(0, 1fr) auto;\r\n    gap: 26px;\r\n    align-items: center;\r\n    margin-top: 65px;\r\n    padding: 33px;\r\n    border-radius: 18px;\r\n    background:\r\n        linear-gradient(\r\n            135deg,\r\n            #073664 0%,\r\n            #004898 72%,\r\n            #0d5fb5 100%\r\n        );\r\n    color: #fff;\r\n    box-shadow: 0 16px 35px rgba(0, 72, 152, 0.2);\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-cta h2 {\r\n    margin-bottom: 9px;\r\n    color: #fff;\r\n    font-size: 28px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-cta p {\r\n    max-width: 760px;\r\n    margin: 0;\r\n    color: rgba(255, 255, 255, 0.91);\r\n    font-size: 16px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-btn {\r\n    display: inline-flex;\r\n    min-height: 50px;\r\n    align-items: center;\r\n    justify-content: center;\r\n    padding: 13px 22px;\r\n    border: 2px solid #fff;\r\n    border-radius: 8px;\r\n    background: #fff;\r\n    color: var(--ly48-blue-dark) !important;\r\n    font-size: 15px;\r\n    font-weight: 850;\r\n    line-height: 1.2;\r\n    text-align: center;\r\n    text-decoration: none !important;\r\n    white-space: nowrap;\r\n    transition:\r\n        transform 0.2s ease,\r\n        box-shadow 0.2s ease;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-btn:hover {\r\n    transform: translateY(-2px);\r\n    box-shadow: 0 10px 22px rgba(0, 0, 0, 0.18);\r\n}\r\n\r\n\/* FAQ *\/\r\n#ly48-spd-after-lightning .ly48-faq-list {\r\n    display: grid;\r\n    gap: 12px;\r\n    margin-top: 23px;\r\n}\r\n\r\n#ly48-spd-after-lightning details {\r\n    overflow: hidden;\r\n    border: 1px solid var(--ly48-border);\r\n    border-radius: 12px;\r\n    background: #fff;\r\n}\r\n\r\n#ly48-spd-after-lightning summary {\r\n    position: relative;\r\n    padding: 18px 51px 18px 20px;\r\n    color: var(--ly48-heading);\r\n    cursor: pointer;\r\n    font-weight: 800;\r\n    list-style: none;\r\n}\r\n\r\n#ly48-spd-after-lightning summary::-webkit-details-marker {\r\n    display: none;\r\n}\r\n\r\n#ly48-spd-after-lightning summary::after {\r\n    position: absolute;\r\n    top: 50%;\r\n    right: 20px;\r\n    transform: translateY(-50%);\r\n    color: var(--ly48-blue);\r\n    content: \"+\";\r\n    font-size: 24px;\r\n    font-weight: 500;\r\n}\r\n\r\n#ly48-spd-after-lightning details[open] summary::after {\r\n    content: \"\u2212\";\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-faq-answer {\r\n    padding: 0 20px 19px;\r\n    color: #42596d;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-faq-answer p {\r\n    margin-bottom: 0;\r\n}\r\n\r\n\/* Related pages *\/\r\n#ly48-spd-after-lightning .ly48-related-grid {\r\n    display: grid;\r\n    grid-template-columns: repeat(3, minmax(0, 1fr));\r\n    gap: 15px;\r\n    margin-top: 21px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-related-card {\r\n    display: flex;\r\n    min-height: 132px;\r\n    flex-direction: column;\r\n    justify-content: space-between;\r\n    padding: 20px;\r\n    border: 1px solid var(--ly48-border);\r\n    border-radius: 12px;\r\n    background: #fff;\r\n    color: var(--ly48-heading) !important;\r\n    text-decoration: none !important;\r\n    transition:\r\n        transform 0.2s ease,\r\n        border-color 0.2s ease,\r\n        box-shadow 0.2s ease;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-related-card:hover {\r\n    transform: translateY(-3px);\r\n    border-color: var(--ly48-blue);\r\n    box-shadow: var(--ly48-shadow);\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-related-card strong {\r\n    font-size: 16px;\r\n    line-height: 1.42;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-related-card span {\r\n    margin-top: 13px;\r\n    color: var(--ly48-blue);\r\n    font-size: 13px;\r\n    font-weight: 800;\r\n}\r\n\r\n\/* References *\/\r\n#ly48-spd-after-lightning .ly48-references {\r\n    padding: 27px;\r\n    border: 1px solid var(--ly48-border);\r\n    border-radius: 14px;\r\n    background: var(--ly48-bg);\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-references ol {\r\n    margin: 0;\r\n    padding-left: 23px;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-references li {\r\n    margin-bottom: 12px;\r\n    padding-left: 4px;\r\n    color: var(--ly48-muted);\r\n    font-size: 14px;\r\n    line-height: 1.58;\r\n}\r\n\r\n#ly48-spd-after-lightning .ly48-references li:last-child {\r\n    margin-bottom: 0;\r\n}\r\n\r\n\/* =========================================================\r\n   Responsive settings\r\n========================================================= *\/\r\n\r\n@media (max-width: 1440px) {\r\n    #ly48-spd-after-lightning .ly48-shell {\r\n        width: min(1130px, calc(100% - 46px));\r\n    }\r\n}\r\n\r\n@media (max-width: 1366px) {\r\n    #ly48-spd-after-lightning .ly48-shell {\r\n        width: min(1090px, calc(100% - 44px));\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-section {\r\n        margin-top: 60px;\r\n    }\r\n}\r\n\r\n@media (max-width: 1280px) {\r\n    #ly48-spd-after-lightning {\r\n        font-size: 16.5px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-shell {\r\n        width: min(1050px, calc(100% - 42px));\r\n    }\r\n}\r\n\r\n@media (max-width: 1024px) {\r\n    #ly48-spd-after-lightning .ly48-shell {\r\n        width: calc(100% - 40px);\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-decision-grid,\r\n    #ly48-spd-after-lightning .ly48-scope-grid {\r\n        grid-template-columns: 1fr;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-checklist-grid {\r\n        grid-template-columns: 1fr;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-related-grid {\r\n        grid-template-columns: repeat(2, minmax(0, 1fr));\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-cta {\r\n        grid-template-columns: 1fr;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-btn {\r\n        width: fit-content;\r\n    }\r\n}\r\n\r\n@media (max-width: 912px) {\r\n    #ly48-spd-after-lightning .ly48-shell {\r\n        width: calc(100% - 36px);\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-two-col,\r\n    #ly48-spd-after-lightning .ly48-application-grid {\r\n        grid-template-columns: 1fr;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-manufacturer-note {\r\n        grid-template-columns: 1fr;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-manufacturer-label {\r\n        width: fit-content;\r\n        max-width: 230px;\r\n    }\r\n}\r\n\r\n@media (max-width: 820px) {\r\n    #ly48-spd-after-lightning .ly48-section {\r\n        margin-top: 54px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-lead {\r\n        font-size: 19px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-related-grid {\r\n        grid-template-columns: 1fr;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-related-card {\r\n        min-height: auto;\r\n    }\r\n}\r\n\r\n@media (max-width: 768px) {\r\n    #ly48-spd-after-lightning .ly48-shell {\r\n        width: calc(100% - 32px);\r\n        padding-bottom: 58px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning h2 {\r\n        font-size: 29px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-quick h2,\r\n    #ly48-spd-after-lightning .ly48-cta h2 {\r\n        font-size: 26px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-answer {\r\n        font-size: 18px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-inspection-grid {\r\n        grid-template-columns: 1fr;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-checklist ul {\r\n        grid-template-columns: 1fr;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-jump-links {\r\n        display: grid;\r\n        grid-template-columns: repeat(2, minmax(0, 1fr));\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-jump a {\r\n        justify-content: center;\r\n        text-align: center;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-figure {\r\n        margin-top: 23px;\r\n        border-radius: 13px;\r\n    }\r\n}\r\n\r\n@media (max-width: 600px) {\r\n    #ly48-spd-after-lightning {\r\n        font-size: 16px;\r\n        line-height: 1.68;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-shell {\r\n        width: calc(100% - 28px);\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-quick,\r\n    #ly48-spd-after-lightning .ly48-cta {\r\n        padding: 24px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-safety-note,\r\n    #ly48-spd-after-lightning .ly48-warning {\r\n        grid-template-columns: 1fr;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-editorial {\r\n        display: grid;\r\n        gap: 8px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-figure figcaption {\r\n        padding: 11px 13px;\r\n        font-size: 13px;\r\n    }\r\n}\r\n\r\n@media (max-width: 540px) {\r\n    #ly48-spd-after-lightning h2 {\r\n        font-size: 27px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning h3 {\r\n        font-size: 20px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-lead {\r\n        font-size: 18px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-jump-links {\r\n        grid-template-columns: 1fr;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-panel,\r\n    #ly48-spd-after-lightning .ly48-checklist,\r\n    #ly48-spd-after-lightning .ly48-photo-box,\r\n    #ly48-spd-after-lightning .ly48-manufacturer-note {\r\n        padding: 21px;\r\n    }\r\n}\r\n\r\n@media (max-width: 480px) {\r\n    #ly48-spd-after-lightning .ly48-shell {\r\n        width: calc(100% - 24px);\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-section {\r\n        margin-top: 48px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-quick,\r\n    #ly48-spd-after-lightning .ly48-cta {\r\n        padding: 21px;\r\n        border-radius: 14px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-btn {\r\n        width: 100%;\r\n        white-space: normal;\r\n    }\r\n\r\n    #ly48-spd-after-lightning table {\r\n        min-width: 730px;\r\n    }\r\n}\r\n\r\n@media (max-width: 430px) {\r\n    #ly48-spd-after-lightning h2 {\r\n        font-size: 25px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-quick h2,\r\n    #ly48-spd-after-lightning .ly48-cta h2 {\r\n        font-size: 24px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-answer {\r\n        font-size: 17px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-decision-card,\r\n    #ly48-spd-after-lightning .ly48-scope-card {\r\n        padding: 19px;\r\n    }\r\n}\r\n\r\n@media (max-width: 414px) {\r\n    #ly48-spd-after-lightning .ly48-shell {\r\n        width: calc(100% - 22px);\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-inspection-item {\r\n        padding: 63px 17px 17px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-inspection-item::before {\r\n        top: 16px;\r\n        left: 17px;\r\n    }\r\n}\r\n\r\n@media (max-width: 390px) {\r\n    #ly48-spd-after-lightning {\r\n        font-size: 15.5px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-lead {\r\n        font-size: 17px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-kicker {\r\n        font-size: 12px;\r\n    }\r\n}\r\n\r\n@media (max-width: 375px) {\r\n    #ly48-spd-after-lightning .ly48-shell {\r\n        width: calc(100% - 20px);\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-quick,\r\n    #ly48-spd-after-lightning .ly48-cta,\r\n    #ly48-spd-after-lightning .ly48-references {\r\n        padding: 19px;\r\n    }\r\n}\r\n\r\n@media (max-width: 360px) {\r\n    #ly48-spd-after-lightning h2 {\r\n        font-size: 23px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning h3 {\r\n        font-size: 19px;\r\n    }\r\n}\r\n\r\n@media (max-width: 320px) {\r\n    #ly48-spd-after-lightning .ly48-shell {\r\n        width: calc(100% - 16px);\r\n    }\r\n\r\n    #ly48-spd-after-lightning .ly48-quick,\r\n    #ly48-spd-after-lightning .ly48-cta,\r\n    #ly48-spd-after-lightning .ly48-panel,\r\n    #ly48-spd-after-lightning .ly48-checklist,\r\n    #ly48-spd-after-lightning .ly48-photo-box,\r\n    #ly48-spd-after-lightning .ly48-manufacturer-note {\r\n        padding: 16px;\r\n    }\r\n\r\n    #ly48-spd-after-lightning summary {\r\n        padding-left: 16px;\r\n    }\r\n}\r\n<\/style>\r\n\r\n<article class=\"ly48-shell\">\r\n\r\n    <section class=\"ly48-intro\" aria-labelledby=\"ly48-introduction\">\r\n        <span class=\"ly48-kicker\">Post-lightning SPD replacement decision<\/span>\r\n\r\n        <p id=\"ly48-introduction\" class=\"ly48-lead\">\r\n            A lightning event does not automatically mean that every surge protective device must be replaced.\r\n            It does mean that the affected protection points should be inspected and the result documented.\r\n            The replacement decision depends on the status indicator, remote alarm, physical condition,\r\n            backup protection and the consequence of leaving an uncertain SPD in service.\r\n        <\/p>\r\n\r\n        <div class=\"ly48-editorial\" aria-label=\"Article information\">\r\n            <span>Prepared by LEEYEE Technical Team<\/span>\r\n            <span>Technical review: LEEYEE Surge Protection Team<\/span>\r\n            <span>Updated: July 16, 2026<\/span>\r\n        <\/div>\r\n\r\n        <div class=\"ly48-safety-note\">\r\n            <span class=\"ly48-safety-icon\" aria-hidden=\"true\">i<\/span>\r\n\r\n            <p>\r\n                This page is an event-aftercare and replacement decision guide.\r\n                It is not a live-circuit testing procedure. Cabinet inspection, isolation and replacement\r\n                should be carried out by qualified personnel under the site's electrical safety rules.\r\n            <\/p>\r\n        <\/div>\r\n    <\/section>\r\n\r\n    <nav class=\"ly48-jump\" aria-label=\"Article sections\">\r\n        <span class=\"ly48-jump-title\">Go directly to the decision you need:<\/span>\r\n\r\n        <div class=\"ly48-jump-links\">\r\n            <a href=\"#ly48-quick-answer\">Quick answer<\/a>\r\n            <a href=\"#ly48-decision-table\">Replace or keep?<\/a>\r\n            <a href=\"#ly48-inspection\">Post-event checks<\/a>\r\n            <a href=\"#ly48-green-indicator\">Green indicator<\/a>\r\n            <a href=\"#ly48-remote-alarm\">Remote alarm<\/a>\r\n            <a href=\"#ly48-replacement-scope\">Replacement scope<\/a>\r\n            <a href=\"#ly48-spare-model\">Confirm the spare<\/a>\r\n            <a href=\"#ly48-faq\">FAQ<\/a>\r\n        <\/div>\r\n    <\/nav>\r\n\r\n    <section id=\"ly48-quick-answer\" class=\"ly48-quick\">\r\n        <div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/replace-spd-after-lightning-strike\/#quick-answer-should-the-spd-be-replaced\" >Quick Answer: Should the SPD Be Replaced?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/replace-spd-after-lightning-strike\/#use-three-decisions-not-only-%e2%80%9cgreen-or-red%e2%80%9d\" >Use Three Decisions, Not Only \u201cGreen or Red\u201d<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/replace-spd-after-lightning-strike\/#when-must-an-spd-be-replaced-after-lightning\" >When Must an SPD Be Replaced After Lightning?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/replace-spd-after-lightning-strike\/#what-should-be-checked-before-the-replacement-decision\" >What Should Be Checked Before the Replacement Decision?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/replace-spd-after-lightning-strike\/#the-spd-indicator-is-still-green-can-it-stay-in-service\" >The SPD Indicator Is Still Green. Can It Stay in Service?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/replace-spd-after-lightning-strike\/#what-does-an-spd-remote-alarm-mean-after-lightning\" >What Does an SPD Remote Alarm Mean After Lightning?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/replace-spd-after-lightning-strike\/#should-every-spd-in-the-same-cabinet-be-replaced\" >Should Every SPD in the Same Cabinet Be Replaced?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/replace-spd-after-lightning-strike\/#replace-one-cartridge-the-full-set-or-the-complete-spd\" >Replace One Cartridge, the Full Set or the Complete SPD?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/replace-spd-after-lightning-strike\/#when-is-preventive-replacement-reasonable\" >When Is Preventive Replacement Reasonable?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/replace-spd-after-lightning-strike\/#how-to-confirm-the-correct-replacement-spd\" >How to Confirm the Correct Replacement SPD<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/replace-spd-after-lightning-strike\/#what-else-should-be-checked-at-different-sites\" >What Else Should Be Checked at Different Sites?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/replace-spd-after-lightning-strike\/#need-to-confirm-an-spd-replacement-model\" >Need to Confirm an SPD Replacement Model?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/replace-spd-after-lightning-strike\/#spd-replacement-after-lightning-faq\" >SPD Replacement After Lightning: FAQ<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/replace-spd-after-lightning-strike\/#continue-the-spd-troubleshooting-process\" >Continue the SPD Troubleshooting Process<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"#\" data-href=\"https:\/\/www.cnspd.com\/id\/replace-spd-after-lightning-strike\/#technical-references\" >Technical References<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"quick-answer-should-the-spd-be-replaced\"><\/span>Quick Answer: Should the SPD Be Replaced?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <p class=\"ly48-answer\">\r\n            <strong>Not automatically.<\/strong>\r\n            Replace the SPD immediately when its failure indicator has changed state,\r\n            the remote alarm reports a fault, the housing or terminals show damage,\r\n            or the manufacturer's permitted inspection method confirms an abnormal condition.\r\n        <\/p>\r\n\r\n        <p>\r\n            If the visual indication remains normal and the wider post-event inspection finds no abnormal condition,\r\n            the SPD may remain in service. However, a conventional green window is a status indication,\r\n            not a measurement of exact remaining surge capacity.\r\n            <sup class=\"ly48-ref\"><a href=\"#ly48-ref-1\">[1]<\/a><\/sup>\r\n            <sup class=\"ly48-ref\"><a href=\"#ly48-ref-2\">[2]<\/a><\/sup>\r\n        <\/p>\r\n    <\/section>\r\n\r\n    <section class=\"ly48-section\" aria-labelledby=\"ly48-outcomes-heading\">\r\n        <span class=\"ly48-kicker\">Three possible outcomes<\/span>\r\n\r\n        <h2 id=\"ly48-outcomes-heading\"><span class=\"ez-toc-section\" id=\"use-three-decisions-not-only-%e2%80%9cgreen-or-red%e2%80%9d\"><\/span>Use Three Decisions, Not Only \u201cGreen or Red\u201d<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <div class=\"ly48-decision-grid\">\r\n\r\n            <div class=\"ly48-decision-card is-red\">\r\n                <div class=\"ly48-status\">\r\n                    <span class=\"ly48-status-dot\"><\/span>\r\n                    Replace now\r\n                <\/div>\r\n\r\n                <h3>Failure or damage is confirmed<\/h3>\r\n\r\n                <p>\r\n                    Replace the affected cartridge or complete SPD before the protection point is returned to normal service.\r\n                <\/p>\r\n            <\/div>\r\n\r\n            <div class=\"ly48-decision-card is-amber\">\r\n                <div class=\"ly48-status\">\r\n                    <span class=\"ly48-status-dot\"><\/span>\r\n                    Investigate first\r\n                <\/div>\r\n\r\n                <h3>An abnormal event is unresolved<\/h3>\r\n\r\n                <p>\r\n                    Keep the point under investigation when backup protection operated, equipment was damaged or the event path is uncertain.\r\n                <\/p>\r\n            <\/div>\r\n\r\n            <div class=\"ly48-decision-card is-green\">\r\n                <div class=\"ly48-status\">\r\n                    <span class=\"ly48-status-dot\"><\/span>\r\n                    Continue and monitor\r\n                <\/div>\r\n\r\n                <h3>No abnormal condition is found<\/h3>\r\n\r\n                <p>\r\n                    Keep the SPD in service after visual status, alarm, wiring, earthing and backup protection have been checked and recorded.\r\n                <\/p>\r\n            <\/div>\r\n\r\n        <\/div>\r\n    <\/section>\r\n\r\n    <section id=\"ly48-decision-table\" class=\"ly48-section\" aria-labelledby=\"ly48-decision-heading\">\r\n        <span class=\"ly48-kicker\">Post-lightning decision matrix<\/span>\r\n\r\n        <h2 id=\"ly48-decision-heading\"><span class=\"ez-toc-section\" id=\"when-must-an-spd-be-replaced-after-lightning\"><\/span>When Must an SPD Be Replaced After Lightning?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <div class=\"ly48-table-wrap\">\r\n            <table>\r\n                <thead>\r\n                    <tr>\r\n                        <th>Condition after the event<\/th>\r\n                        <th>What it means for the decision<\/th>\r\n                        <th>Required action<\/th>\r\n                    <\/tr>\r\n                <\/thead>\r\n\r\n                <tbody>\r\n                    <tr>\r\n                        <td>Indicator shows the manufacturer's failure or end-of-life state<\/td>\r\n                        <td>The monitored protective module is no longer in its normal service state.<\/td>\r\n                        <td>\r\n                            <span class=\"ly48-action-red\">Replace the affected module or device.<\/span>\r\n                        <\/td>\r\n                    <\/tr>\r\n\r\n                    <tr>\r\n                        <td>Remote fault contact has changed state<\/td>\r\n                        <td>One or more monitored modules may have disconnected after an overload or failure.<\/td>\r\n                        <td>\r\n                            <span class=\"ly48-action-red\">Locate the affected SPD and inspect it physically. Do not only clear the BMS or PLC alarm.<\/span>\r\n                        <\/td>\r\n                    <\/tr>\r\n\r\n                    <tr>\r\n                        <td>Cracks, melting, burn marks, deformation, soot, damaged terminals or a burnt smell<\/td>\r\n                        <td>Thermal, electrical or mechanical damage may have occurred.<\/td>\r\n                        <td>\r\n                            <span class=\"ly48-action-red\">Keep isolated and replace the damaged component or complete SPD.<\/span>\r\n                        <\/td>\r\n                    <\/tr>\r\n\r\n                    <tr>\r\n                        <td>SPD backup fuse, MCB or other specified backup protection operated<\/td>\r\n                        <td>The cause may involve the SPD, wiring, system voltage or protective-device coordination.<\/td>\r\n                        <td>\r\n                            <span class=\"ly48-action-amber\">Investigate before replacing the fuse or resetting the breaker.<\/span>\r\n                        <\/td>\r\n                    <\/tr>\r\n\r\n                    <tr>\r\n                        <td>Indicator and remote contact are normal, with no visible or system abnormality<\/td>\r\n                        <td>No monitored end-of-life state has been identified.<\/td>\r\n                        <td>\r\n                            <span class=\"ly48-action-green\">Complete the inspection, record the result and continue monitoring.<\/span>\r\n                        <\/td>\r\n                    <\/tr>\r\n\r\n                    <tr>\r\n                        <td>SPD appears normal, but inverters, PLCs, power supplies or communication equipment were damaged<\/td>\r\n                        <td>The surge may have entered through another line or bypassed part of the protection concept.<\/td>\r\n                        <td>\r\n                            <span class=\"ly48-action-amber\">Inspect all relevant power, signal, data and earthing paths.<\/span>\r\n                        <\/td>\r\n                    <\/tr>\r\n\r\n                    <tr>\r\n                        <td>Confirmed direct strike at a critical, remote or difficult-to-access site<\/td>\r\n                        <td>The uncertainty and cost of another event may be more important than the price of planned replacement.<\/td>\r\n                        <td>\r\n                            <span class=\"ly48-action-amber\">Apply the manufacturer and site risk policy; consider preventive replacement.<\/span>\r\n                        <\/td>\r\n                    <\/tr>\r\n                <\/tbody>\r\n            <\/table>\r\n        <\/div>\r\n\r\n        <figure class=\"ly48-figure\">\r\n            <img loading=\"lazy\"\r\n                src=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/07\/spd-after-lightning-inspection-decision-flow.webp\"\r\n                alt=\"SPD inspection and replacement decision flow after a lightning strike\"\r\n                width=\"1448\"\r\n                height=\"1086\"\r\n                loading=\"lazy\"\r\n                decoding=\"async\"\r\n            >\r\n            <figcaption>\r\n                Post-lightning SPD decision flow: replace confirmed failures, investigate unresolved abnormalities and continue monitoring only after all checks are normal.\r\n            <\/figcaption>\r\n        <\/figure>\r\n\r\n        <div class=\"ly48-warning\">\r\n            <span class=\"ly48-warning-icon\" aria-hidden=\"true\">!<\/span>\r\n\r\n            <div>\r\n                <h3>Do not simply reset the backup breaker<\/h3>\r\n\r\n                <p>\r\n                    Re-energising without checking the SPD, circuit and system voltage can restore power while leaving\r\n                    a protection mode unavailable\u2014or expose a new replacement module to the same unresolved fault.\r\n                <\/p>\r\n            <\/div>\r\n        <\/div>\r\n    <\/section>\r\n\r\n    <section id=\"ly48-inspection\" class=\"ly48-section\" aria-labelledby=\"ly48-inspection-heading\">\r\n        <span class=\"ly48-kicker\">Event-aftercare checklist<\/span>\r\n\r\n        <h2 id=\"ly48-inspection-heading\"><span class=\"ez-toc-section\" id=\"what-should-be-checked-before-the-replacement-decision\"><\/span>What Should Be Checked Before the Replacement Decision?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <p>\r\n            This is a decision checklist, not a detailed SPD test method.\r\n            For electrical testing and failure diagnosis procedures, use the separate\r\n            <a href=\"\/check-spd-failure\/\">SPD failure inspection guide<\/a>.\r\n            Regular SPD inspection and documented lightning-protection maintenance are part of a complete protection programme.\r\n            <sup class=\"ly48-ref\"><a href=\"#ly48-ref-1\">[1]<\/a><\/sup>\r\n        <\/p>\r\n\r\n        <div class=\"ly48-inspection-grid\">\r\n\r\n            <div class=\"ly48-inspection-item\">\r\n                <h3>Isolate safely<\/h3>\r\n                <p>Follow the site's lockout, verification and electrical safety procedure before opening the cabinet.<\/p>\r\n            <\/div>\r\n\r\n            <div class=\"ly48-inspection-item\">\r\n                <h3>Record every indicator<\/h3>\r\n                <p>Check each phase, DC pole and N-PE module rather than recording only the overall assembly.<\/p>\r\n            <\/div>\r\n\r\n            <div class=\"ly48-inspection-item\">\r\n                <h3>Review remote alarms<\/h3>\r\n                <p>Confirm the alarm time, cabinet, contact state and affected protection point.<\/p>\r\n            <\/div>\r\n\r\n            <div class=\"ly48-inspection-item\">\r\n                <h3>Inspect the device and wiring<\/h3>\r\n                <p>Look for damage, discoloration, loose terminals, damaged insulation and abnormal heating.<\/p>\r\n            <\/div>\r\n\r\n            <div class=\"ly48-inspection-item\">\r\n                <h3>Check backup protection<\/h3>\r\n                <p>Record whether the specified fuse, breaker or surge backup protector operated.<\/p>\r\n            <\/div>\r\n\r\n            <div class=\"ly48-inspection-item\">\r\n                <h3>Check earthing and bonding<\/h3>\r\n                <p>Inspect the SPD earth conductor, equipotential connection and visible earthing-system damage.<\/p>\r\n            <\/div>\r\n\r\n            <div class=\"ly48-inspection-item\">\r\n                <h3>Check other entry paths<\/h3>\r\n                <p>Include AC, PV DC, sensors, RS485, Ethernet, PoE, coaxial and other external lines.<\/p>\r\n            <\/div>\r\n\r\n            <div class=\"ly48-inspection-item\">\r\n                <h3>Photograph before removal<\/h3>\r\n                <p>Capture the indicator, nameplate, cartridge, base, wiring, backup protection and cabinet position.<\/p>\r\n            <\/div>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"ly48-separation-note\">\r\n            <p>\r\n                <strong>Page boundary:<\/strong>\r\n                this page answers what to replace after the checks.\r\n                The separate failure page explains how to test and diagnose the SPD in more detail.\r\n            <\/p>\r\n        <\/div>\r\n    <\/section>\r\n\r\n    <section id=\"ly48-green-indicator\" class=\"ly48-section\" aria-labelledby=\"ly48-green-heading\">\r\n        <span class=\"ly48-kicker\">The most misunderstood result<\/span>\r\n\r\n        <h2 id=\"ly48-green-heading\"><span class=\"ez-toc-section\" id=\"the-spd-indicator-is-still-green-can-it-stay-in-service\"><\/span>The SPD Indicator Is Still Green. Can It Stay in Service?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <p>\r\n            On a conventional SPD, a normal visual indicator generally shows that the monitored disconnector\r\n            has not reported the device's defined failure state.\r\n            Status indication and remote signalling are used to identify overloaded or disconnected protective modules\r\n            so that they can be replaced.\r\n            <sup class=\"ly48-ref\"><a href=\"#ly48-ref-1\">[1]<\/a><\/sup>\r\n            <sup class=\"ly48-ref\"><a href=\"#ly48-ref-3\">[3]<\/a><\/sup>\r\n        <\/p>\r\n\r\n        <figure class=\"ly48-figure\">\r\n            <img loading=\"lazy\"\r\n                src=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/07\/spd-condition-after-lightning-comparison.webp\"\r\n                alt=\"Comparison of SPD conditions and required actions after a lightning event\"\r\n                width=\"1448\"\r\n                height=\"1086\"\r\n                loading=\"lazy\"\r\n                decoding=\"async\"\r\n            >\r\n            <figcaption>\r\n                A normal indicator permits continued evaluation; a failed indicator or visible damage requires replacement, while operated backup protection requires investigation before reset.\r\n            <\/figcaption>\r\n        <\/figure>\r\n\r\n        <div class=\"ly48-two-col\">\r\n\r\n            <div class=\"ly48-panel is-positive\">\r\n                <h3>What a normal indicator supports<\/h3>\r\n\r\n                <ul class=\"ly48-list\">\r\n                    <li>No monitored end-of-life state is currently displayed.<\/li>\r\n                    <li>The module may remain available for protection.<\/li>\r\n                    <li>Lightning alone is not sufficient evidence that this module has failed.<\/li>\r\n                    <li>The device can remain in service when the wider inspection is also normal.<\/li>\r\n                <\/ul>\r\n            <\/div>\r\n\r\n            <div class=\"ly48-panel is-limited\">\r\n                <h3>What a green window cannot prove<\/h3>\r\n\r\n                <ul class=\"ly48-list\">\r\n                    <li>It does not show how much surge energy was absorbed.<\/li>\r\n                    <li>It does not calculate exact remaining service life.<\/li>\r\n                    <li>It does not verify every wiring and earthing connection.<\/li>\r\n                    <li>It does not confirm the condition of other SPDs or surge entry paths.<\/li>\r\n                    <li>It does not replace a site-specific risk assessment after a severe event.<\/li>\r\n                <\/ul>\r\n            <\/div>\r\n\r\n        <\/div>\r\n\r\n        <div class=\"ly48-manufacturer-note\">\r\n            <div class=\"ly48-manufacturer-label\">\r\n                LEEYEE Manufacturer Note\r\n            <\/div>\r\n\r\n            <div>\r\n                <h3>For replacement confirmation, the indicator colour alone is not enough<\/h3>\r\n\r\n                <p>\r\n                    To confirm a LEEYEE replacement cartridge or equivalent SPD, provide the complete nameplate,\r\n                    every indicator window, the cartridge and base model, system voltage, wiring configuration,\r\n                    backup protection and a full cabinet photo.\r\n                <\/p>\r\n\r\n                <p>\r\n                    This allows the replacement decision to be separated into three possibilities:\r\n                    an exact cartridge replacement, a complete SPD replacement or a specification correction\r\n                    before the same problem is repeated.\r\n                <\/p>\r\n            <\/div>\r\n        <\/div>\r\n\r\n        <div class=\"ly48-warning\">\r\n            <span class=\"ly48-warning-icon\" aria-hidden=\"true\">!<\/span>\r\n\r\n            <div>\r\n                <h3>A standard multimeter is not a remaining-life tester<\/h3>\r\n\r\n                <p>\r\n                    A basic resistance or continuity check may identify some severe open- or short-circuit conditions,\r\n                    but it cannot reproduce the impulse tests used to verify an SPD's published performance.\r\n                    IEC product standards define performance and test requirements for SPDs.\r\n                    <sup class=\"ly48-ref\"><a href=\"#ly48-ref-4\">[4]<\/a><\/sup>\r\n                <\/p>\r\n            <\/div>\r\n        <\/div>\r\n    <\/section>\r\n\r\n    <section id=\"ly48-remote-alarm\" class=\"ly48-section\" aria-labelledby=\"ly48-remote-heading\">\r\n        <span class=\"ly48-kicker\">Remote status monitoring<\/span>\r\n\r\n        <h2 id=\"ly48-remote-heading\"><span class=\"ez-toc-section\" id=\"what-does-an-spd-remote-alarm-mean-after-lightning\"><\/span>What Does an SPD Remote Alarm Mean After Lightning?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <p>\r\n            A conventional remote contact normally reports the monitored operating or failure state of the SPD.\r\n            It should not automatically be treated as a lightning counter or a measurement of the energy discharged.\r\n            Remote signalling allows a failed or disconnected module to be detected from a control room,\r\n            which is especially useful at large or difficult-to-access installations.\r\n            <sup class=\"ly48-ref\"><a href=\"#ly48-ref-1\">[1]<\/a><\/sup>\r\n            <sup class=\"ly48-ref\"><a href=\"#ly48-ref-2\">[2]<\/a><\/sup>\r\n        <\/p>\r\n\r\n        <div class=\"ly48-two-col\">\r\n\r\n            <div class=\"ly48-panel\">\r\n                <h3>Check after an alarm<\/h3>\r\n\r\n                <ul class=\"ly48-list\">\r\n                    <li>Whether the contact is normally open or normally closed.<\/li>\r\n                    <li>Which cabinet and SPD generated the alarm.<\/li>\r\n                    <li>Whether one module or several poles changed state.<\/li>\r\n                    <li>Whether the contact returns to normal after correct replacement.<\/li>\r\n                    <li>Whether the monitoring wiring and PLC or BMS input are operating correctly.<\/li>\r\n                <\/ul>\r\n            <\/div>\r\n\r\n            <div class=\"ly48-panel\">\r\n                <h3>Avoid these mistakes<\/h3>\r\n\r\n                <ul class=\"ly48-list\">\r\n                    <li>Do not only acknowledge the software alarm.<\/li>\r\n                    <li>Do not assume every alarm proves one specific lightning strike caused the fault.<\/li>\r\n                    <li>Do not replace the module without checking the system condition.<\/li>\r\n                    <li>Do not ignore a repeated alarm after fitting the same specification.<\/li>\r\n                <\/ul>\r\n            <\/div>\r\n\r\n        <\/div>\r\n\r\n        <p>\r\n            For PLC terminal logic and contact wiring, see the\r\n            <a href=\"\/spd-remote-alarm-plc\/\">SPD remote alarm and PLC connection guide<\/a>.\r\n        <\/p>\r\n    <\/section>\r\n\r\n    <section class=\"ly48-section\" aria-labelledby=\"ly48-cabinet-heading\">\r\n        <span class=\"ly48-kicker\">Cabinet and site scope<\/span>\r\n\r\n        <h2 id=\"ly48-cabinet-heading\"><span class=\"ez-toc-section\" id=\"should-every-spd-in-the-same-cabinet-be-replaced\"><\/span>Should Every SPD in the Same Cabinet Be Replaced?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <p>\r\n            <strong>No\u2014not automatically. But every relevant module should be checked.<\/strong>\r\n            A single failed cartridge does not prove that every other module is damaged.\r\n            Likewise, one normal indicator does not prove that the entire cabinet or protection chain is unaffected.\r\n        <\/p>\r\n\r\n        <div class=\"ly48-table-wrap\">\r\n            <table>\r\n                <thead>\r\n                    <tr>\r\n                        <th>Situation<\/th>\r\n                        <th>Minimum scope<\/th>\r\n                        <th>When wider replacement may be justified<\/th>\r\n                    <\/tr>\r\n                <\/thead>\r\n\r\n                <tbody>\r\n                    <tr>\r\n                        <td>One failed cartridge<\/td>\r\n                        <td>Check all poles, the N-PE module, base, terminals and backup protection.<\/td>\r\n                        <td>Other cartridges have the same long service and surge history, or another outage is costly.<\/td>\r\n                    <\/tr>\r\n\r\n                    <tr>\r\n                        <td>One affected distribution board<\/td>\r\n                        <td>Check upstream and downstream SPDs in the coordinated protection arrangement.<\/td>\r\n                        <td>Several loads or multiple protection stages were affected.<\/td>\r\n                    <\/tr>\r\n\r\n                    <tr>\r\n                        <td>Solar PV plant<\/td>\r\n                        <td>Check combiner boxes, inverter DC inputs, AC outputs and communication protection.<\/td>\r\n                        <td>Several strings, inverters or monitoring devices were damaged.<\/td>\r\n                    <\/tr>\r\n\r\n                    <tr>\r\n                        <td>Telecom or outdoor site<\/td>\r\n                        <td>Check AC, DC, antenna, data, PoE and earthing paths.<\/td>\r\n                        <td>The site is unmanned, difficult to access or repeatedly exposed.<\/td>\r\n                    <\/tr>\r\n\r\n                    <tr>\r\n                        <td>Factory or process plant<\/td>\r\n                        <td>Check power distribution, PLC power, signals, sensors and networks.<\/td>\r\n                        <td>Controlled replacement costs less than an unexpected production shutdown.<\/td>\r\n                    <\/tr>\r\n                <\/tbody>\r\n            <\/table>\r\n        <\/div>\r\n    <\/section>\r\n\r\n    <section id=\"ly48-replacement-scope\" class=\"ly48-section\" aria-labelledby=\"ly48-scope-heading\">\r\n        <span class=\"ly48-kicker\">Replacement scope<\/span>\r\n\r\n        <h2 id=\"ly48-scope-heading\"><span class=\"ez-toc-section\" id=\"replace-one-cartridge-the-full-set-or-the-complete-spd\"><\/span>Replace One Cartridge, the Full Set or the Complete SPD?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <div class=\"ly48-scope-grid\">\r\n\r\n            <div class=\"ly48-scope-card\">\r\n                <span class=\"ly48-scope-number\">1<\/span>\r\n\r\n                <h3>Replace one cartridge<\/h3>\r\n\r\n                <p>\r\n                    Appropriate when only one compatible pluggable module has failed and the base,\r\n                    terminals, remote mechanism and remaining modules are undamaged.\r\n                <\/p>\r\n            <\/div>\r\n\r\n            <div class=\"ly48-scope-card\">\r\n                <span class=\"ly48-scope-number\">2<\/span>\r\n\r\n                <h3>Replace the complete module set<\/h3>\r\n\r\n                <p>\r\n                    Consider this after a severe common event, when all modules have the same long service history,\r\n                    or when the site's maintenance policy requires matched replacement.\r\n                <\/p>\r\n            <\/div>\r\n\r\n            <div class=\"ly48-scope-card\">\r\n                <span class=\"ly48-scope-number\">3<\/span>\r\n\r\n                <h3>Replace the complete SPD<\/h3>\r\n\r\n                <p>\r\n                    Required when the device is non-pluggable, the base or terminals are damaged,\r\n                    remote signalling is unreliable or cartridge compatibility cannot be confirmed.\r\n                <\/p>\r\n            <\/div>\r\n\r\n        <\/div>\r\n\r\n        <p>\r\n            Pluggable products can support faster maintenance, but the replacement cartridge must match the correct product family and base.\r\n            Product documentation commonly identifies specific replacement modules rather than treating all cartridges as interchangeable.\r\n            <sup class=\"ly48-ref\"><a href=\"#ly48-ref-3\">[3]<\/a><\/sup>\r\n        <\/p>\r\n\r\n        <p>\r\n            See the\r\n            <a href=\"\/spd-cartridge-replacement\/\">SPD cartridge replacement guide<\/a>\r\n            and\r\n            <a href=\"\/pluggable-spd-replacement\/\">pluggable SPD replacement guide<\/a>\r\n            for the physical replacement stage.\r\n        <\/p>\r\n    <\/section>\r\n\r\n    <section class=\"ly48-section\" aria-labelledby=\"ly48-preventive-heading\">\r\n        <span class=\"ly48-kicker\">Risk-based maintenance<\/span>\r\n\r\n        <h2 id=\"ly48-preventive-heading\"><span class=\"ez-toc-section\" id=\"when-is-preventive-replacement-reasonable\"><\/span>When Is Preventive Replacement Reasonable?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <p>\r\n            Preventive replacement means replacing a device even though no defined failure indication is visible.\r\n            It is not a universal rule after every thunderstorm.\r\n            It is a risk decision based on event severity, uncertainty, access difficulty and the consequence of another surge.\r\n        <\/p>\r\n\r\n        <div class=\"ly48-table-wrap\">\r\n            <table>\r\n                <thead>\r\n                    <tr>\r\n                        <th>Site condition<\/th>\r\n                        <th>Typical approach<\/th>\r\n                    <\/tr>\r\n                <\/thead>\r\n\r\n                <tbody>\r\n                    <tr>\r\n                        <td>Ordinary indoor panel with no abnormal result<\/td>\r\n                        <td>Record the inspection and continue normal monitoring.<\/td>\r\n                    <\/tr>\r\n\r\n                    <tr>\r\n                        <td>Outdoor cabinet in a high-lightning area<\/td>\r\n                        <td>Increase attention to enclosure condition, earthing, moisture, terminals and spare availability.<\/td>\r\n                    <\/tr>\r\n\r\n                    <tr>\r\n                        <td>Large solar plant with repeat events<\/td>\r\n                        <td>Maintain event records and stock compatible DC, AC and communication replacement modules.<\/td>\r\n                    <\/tr>\r\n\r\n                    <tr>\r\n                        <td>Unmanned telecom station<\/td>\r\n                        <td>Use remote alarms and a conservative spare-parts policy because site access may be delayed.<\/td>\r\n                    <\/tr>\r\n\r\n                    <tr>\r\n                        <td>Continuous-process factory or critical facility<\/td>\r\n                        <td>Compare controlled replacement cost with the potential cost of another unprotected event.<\/td>\r\n                    <\/tr>\r\n\r\n                    <tr>\r\n                        <td>Confirmed direct strike with multiple equipment failures<\/td>\r\n                        <td>Assess the complete coordinated lightning and surge protection system, not only one SPD.<\/td>\r\n                    <\/tr>\r\n                <\/tbody>\r\n            <\/table>\r\n        <\/div>\r\n\r\n        <p>\r\n            IEC application guidance addresses SPD selection, location and coordination for AC and PV systems,\r\n            supporting a system-level rather than single-device view.\r\n            <sup class=\"ly48-ref\"><a href=\"#ly48-ref-5\">[5]<\/a><\/sup>\r\n            <sup class=\"ly48-ref\"><a href=\"#ly48-ref-6\">[6]<\/a><\/sup>\r\n            <sup class=\"ly48-ref\"><a href=\"#ly48-ref-7\">[7]<\/a><\/sup>\r\n        <\/p>\r\n    <\/section>\r\n\r\n    <section id=\"ly48-spare-model\" class=\"ly48-section\" aria-labelledby=\"ly48-spare-heading\">\r\n        <span class=\"ly48-kicker\">Spare-parts confirmation<\/span>\r\n\r\n        <h2 id=\"ly48-spare-heading\"><span class=\"ez-toc-section\" id=\"how-to-confirm-the-correct-replacement-spd\"><\/span>How to Confirm the Correct Replacement SPD<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <p>\r\n            Do not order a replacement only by matching the housing colour, module width or a single value such as \u201c40 kA.\u201d\r\n            The replacement must match the system, application, SPD type, electrical ratings and base.\r\n        <\/p>\r\n\r\n        <figure class=\"ly48-figure\">\r\n            <img loading=\"lazy\"\r\n                src=\"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/07\/replacement-spd-model-confirmation-checklist.webp\"\r\n                alt=\"Replacement SPD model and spare part confirmation checklist\"\r\n                width=\"1448\"\r\n                height=\"1086\"\r\n                loading=\"lazy\"\r\n                decoding=\"async\"\r\n            >\r\n            <figcaption>\r\n                Confirm the electrical system, SPD ratings, cartridge and base compatibility, backup protection and cabinet evidence before ordering a replacement.\r\n            <\/figcaption>\r\n        <\/figure>\r\n\r\n        <div class=\"ly48-checklist-grid\">\r\n\r\n            <div class=\"ly48-checklist\">\r\n                <h3>Technical data to confirm<\/h3>\r\n\r\n                <ul>\r\n                    <li>AC, PV DC, other DC or signal circuit<\/li>\r\n                    <li>Nominal system voltage<\/li>\r\n                    <li>Earthing system or DC topology<\/li>\r\n                    <li>Type 1, Type 1+2, Type 2 or Type 3<\/li>\r\n                    <li>Uc or Ucpv<\/li>\r\n                    <li>Iimp where applicable<\/li>\r\n                    <li>In and Imax<\/li>\r\n                    <li>Up voltage protection level<\/li>\r\n                    <li>Number of poles and protection modes<\/li>\r\n                    <li>1P+N, 2P, 3+1, 4+0 or other topology<\/li>\r\n                    <li>Cartridge and base model<\/li>\r\n                    <li>Remote contact requirement<\/li>\r\n                    <li>Backup fuse, MCB or SCPD requirement<\/li>\r\n                    <li>Applicable standard and certificate scope<\/li>\r\n                    <li>Temperature and enclosure conditions<\/li>\r\n                    <li>OEM label or private-brand requirement<\/li>\r\n                <\/ul>\r\n            <\/div>\r\n\r\n            <div class=\"ly48-photo-box\">\r\n                <h3>Photos that prevent a wrong order<\/h3>\r\n\r\n                <ul>\r\n                    <li>Full front view of the SPD assembly<\/li>\r\n                    <li>Close-up of every indicator window<\/li>\r\n                    <li>Side and top nameplate details<\/li>\r\n                    <li>Cartridge model number<\/li>\r\n                    <li>Base model and coding<\/li>\r\n                    <li>Wiring and earthing connections<\/li>\r\n                    <li>Backup fuse or circuit breaker<\/li>\r\n                    <li>Any burn marks, cracks or damaged terminals<\/li>\r\n                    <li>Full cabinet and application location<\/li>\r\n                <\/ul>\r\n            <\/div>\r\n\r\n        <\/div>\r\n    <\/section>\r\n\r\n    <section class=\"ly48-section\" aria-labelledby=\"ly48-application-heading\">\r\n        <span class=\"ly48-kicker\">Application-specific scope<\/span>\r\n\r\n        <h2 id=\"ly48-application-heading\"><span class=\"ez-toc-section\" id=\"what-else-should-be-checked-at-different-sites\"><\/span>What Else Should Be Checked at Different Sites?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <div class=\"ly48-application-grid\">\r\n\r\n            <div class=\"ly48-application-card\">\r\n                <h3>Solar PV systems<\/h3>\r\n                <p>\r\n                    Check DC combiner boxes, inverter DC inputs, inverter AC outputs,\r\n                    distribution boards, RS485, sensors, monitoring gateways and Ethernet lines.\r\n                <\/p>\r\n            <\/div>\r\n\r\n            <div class=\"ly48-application-card\">\r\n                <h3>Factory control systems<\/h3>\r\n                <p>\r\n                    Check main and sub-distribution SPDs, PLC power supplies, I\/O circuits,\r\n                    field sensors and communication cables that leave the control area.\r\n                <\/p>\r\n            <\/div>\r\n\r\n            <div class=\"ly48-application-card\">\r\n                <h3>Telecom stations<\/h3>\r\n                <p>\r\n                    Include the AC supply, rectifier, -48 V DC system, antenna and coaxial lines,\r\n                    PoE, Ethernet, alarms and equipotential bonding.\r\n                <\/p>\r\n            <\/div>\r\n\r\n            <div class=\"ly48-application-card\">\r\n                <h3>Panel builders and EPC teams<\/h3>\r\n                <p>\r\n                    Before supplying the same model, confirm whether incorrect voltage selection,\r\n                    backup coordination, wiring layout or system overvoltage contributed to the event.\r\n                <\/p>\r\n            <\/div>\r\n\r\n        <\/div>\r\n    <\/section>\r\n\r\n    <section class=\"ly48-cta\" aria-labelledby=\"ly48-cta-heading\">\r\n        <div>\r\n            <h2 id=\"ly48-cta-heading\"><span class=\"ez-toc-section\" id=\"need-to-confirm-an-spd-replacement-model\"><\/span>Need to Confirm an SPD Replacement Model?<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n            <p>\r\n                Send LEEYEE the nameplate, indicator status, system voltage, cartridge and base model,\r\n                backup protection and cabinet photos. We can help determine whether the requirement is\r\n                a replacement cartridge, a complete SPD or a corrected specification.\r\n            <\/p>\r\n        <\/div>\r\n\r\n        <a\r\n            class=\"ly48-btn leeyee-site-popup-btn\"\r\n            href=\"javascript:void(0);\"\r\n            aria-label=\"Ask LEEYEE to confirm a replacement SPD\"\r\n        >\r\n            <span>Confirm My Replacement SPD<\/span>\r\n        <\/a>\r\n    <\/section>\r\n\r\n    <section id=\"ly48-faq\" class=\"ly48-section\" aria-labelledby=\"ly48-faq-heading\">\r\n        <span class=\"ly48-kicker\">Frequently asked questions<\/span>\r\n\r\n        <h2 id=\"ly48-faq-heading\"><span class=\"ez-toc-section\" id=\"spd-replacement-after-lightning-faq\"><\/span>SPD Replacement After Lightning: FAQ<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <div class=\"ly48-faq-list\">\r\n\r\n            <details>\r\n                <summary>Does every SPD need to be replaced after a lightning strike?<\/summary>\r\n\r\n                <div class=\"ly48-faq-answer\">\r\n                    <p>\r\n                        No. Replace the SPD when its status indication, remote alarm, physical condition\r\n                        or approved inspection result shows that it is no longer suitable for service.\r\n                        A documented normal result may allow it to remain in operation.\r\n                    <\/p>\r\n                <\/div>\r\n            <\/details>\r\n\r\n            <details>\r\n                <summary>Can an SPD stay in service if its indicator is still green?<\/summary>\r\n\r\n                <div class=\"ly48-faq-answer\">\r\n                    <p>\r\n                        Yes, when the complete post-event inspection is normal.\r\n                        The green indication generally means the monitored failure state has not been reached,\r\n                        but it does not calculate exact remaining surge capacity.\r\n                    <\/p>\r\n                <\/div>\r\n            <\/details>\r\n\r\n            <details>\r\n                <summary>Does an SPD remote alarm prove that lightning damaged it?<\/summary>\r\n\r\n                <div class=\"ly48-faq-answer\">\r\n                    <p>\r\n                        Not by itself. A conventional remote contact normally reports the device's monitored status.\r\n                        Inspect the SPD locally and investigate the event before deciding the cause.\r\n                    <\/p>\r\n                <\/div>\r\n            <\/details>\r\n\r\n            <details>\r\n                <summary>Can the SPD backup breaker simply be reset?<\/summary>\r\n\r\n                <div class=\"ly48-faq-answer\">\r\n                    <p>\r\n                        Not before inspection. The breaker may have operated because of SPD failure,\r\n                        a wiring fault, short circuit, abnormal system voltage or unsuitable coordination.\r\n                    <\/p>\r\n                <\/div>\r\n            <\/details>\r\n\r\n            <details>\r\n                <summary>Should all modules in a three-phase SPD be replaced together?<\/summary>\r\n\r\n                <div class=\"ly48-faq-answer\">\r\n                    <p>\r\n                        Not automatically. One compatible cartridge can be replaced when only that module failed\r\n                        and the base and remaining modules are undamaged. Full-set replacement is a maintenance and risk decision.\r\n                    <\/p>\r\n                <\/div>\r\n            <\/details>\r\n\r\n            <details>\r\n                <summary>What is needed to order the correct replacement module?<\/summary>\r\n\r\n                <div class=\"ly48-faq-answer\">\r\n                    <p>\r\n                        Confirm the application, system voltage, Uc or Ucpv, SPD type, Iimp, In, Imax, Up,\r\n                        pole configuration, cartridge, base, remote contact and backup protection.\r\n                    <\/p>\r\n                <\/div>\r\n            <\/details>\r\n\r\n        <\/div>\r\n    <\/section>\r\n\r\n    <section class=\"ly48-section\" aria-labelledby=\"ly48-related-heading\">\r\n        <span class=\"ly48-kicker\">Related maintenance pages<\/span>\r\n\r\n        <h2 id=\"ly48-related-heading\"><span class=\"ez-toc-section\" id=\"continue-the-spd-troubleshooting-process\"><\/span>Continue the SPD Troubleshooting Process<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <div class=\"ly48-related-grid\">\r\n\r\n            <a class=\"ly48-related-card\" href=\"\/check-spd-failure\/\">\r\n                <strong>How to Check Whether an SPD Has Failed<\/strong>\r\n                <span>Detailed inspection \u2192<\/span>\r\n            <\/a>\r\n\r\n            <a class=\"ly48-related-card\" href=\"\/spd-failure-causes\/\">\r\n                <strong>Common Causes of SPD Failure<\/strong>\r\n                <span>Find the root cause \u2192<\/span>\r\n            <\/a>\r\n\r\n            <a class=\"ly48-related-card\" href=\"\/spd-failure-indicator-replacement\/\">\r\n                <strong>SPD Failure Indicator and Replacement Guide<\/strong>\r\n                <span>Understand the window \u2192<\/span>\r\n            <\/a>\r\n\r\n            <a class=\"ly48-related-card\" href=\"\/spd-cartridge-replacement\/\">\r\n                <strong>SPD Cartridge Replacement Guide<\/strong>\r\n                <span>Replace the cartridge \u2192<\/span>\r\n            <\/a>\r\n\r\n            <a class=\"ly48-related-card\" href=\"\/pluggable-spd-replacement\/\">\r\n                <strong>Pluggable SPD Module Replacement<\/strong>\r\n                <span>Check compatibility \u2192<\/span>\r\n            <\/a>\r\n\r\n            <a class=\"ly48-related-card\" href=\"\/spd-remote-alarm-plc\/\">\r\n                <strong>SPD Remote Alarm and PLC Connection<\/strong>\r\n                <span>Monitor status \u2192<\/span>\r\n            <\/a>\r\n\r\n        <\/div>\r\n    <\/section>\r\n\r\n    <section class=\"ly48-section ly48-references\" aria-labelledby=\"ly48-reference-heading\">\r\n        <h2 id=\"ly48-reference-heading\"><span class=\"ez-toc-section\" id=\"technical-references\"><\/span>Technical References<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n        <ol>\r\n            <li id=\"ly48-ref-1\">\r\n                Phoenix Contact,\r\n                <em>Fundamentals for Surge Protection<\/em>.\r\n                Covers SPD maintenance, regular inspection, status indicators, remote signalling\r\n                and replacement of overloaded protection modules.\r\n                <a\r\n                    href=\"https:\/\/www.phoenixcontact.com\/assets\/c8428ddc-254d-40b8-a2f2-540ac13bd818\/epaper\/5131327_TT_Basics_EN.pdf\"\r\n                    target=\"_blank\"\r\n                    rel=\"noopener noreferrer\"\r\n                >View source<\/a>.\r\n            <\/li>\r\n\r\n            <li id=\"ly48-ref-2\">\r\n                Phoenix Contact,\r\n                <em>ImpulseCheck: Intelligent Monitoring of Surge Protection<\/em>.\r\n                Discusses condition monitoring and the limitations of relying only on a conventional status indication.\r\n                <a\r\n                    href=\"https:\/\/blog.phoenixcontact.com\/marketing-ae\/impulsecheck-monitoring-surge-protection\/\"\r\n                    target=\"_blank\"\r\n                    rel=\"noopener noreferrer\"\r\n                >View source<\/a>.\r\n            <\/li>\r\n\r\n            <li id=\"ly48-ref-3\">\r\n                ABB Furse,\r\n                <em>ESP Type 1 and Type 2 Surge Protection Series Product Guide<\/em>.\r\n                Shows defined replacement modules, pluggable protection construction and remote-contact options.\r\n                <a\r\n                    href=\"https:\/\/library.e.abb.com\/public\/e365a493461041e48f8a0f487f885197\/Furse_ESP_T1_T2_Surge_Protection_Series_Product_Guide_211021.pdf\"\r\n                    target=\"_blank\"\r\n                    rel=\"noopener noreferrer\"\r\n                >View source<\/a>.\r\n            <\/li>\r\n\r\n            <li id=\"ly48-ref-4\">\r\n                IEC 61643-11:2025,\r\n                <em>Low-voltage Surge Protective Devices\u2014Part 11: SPDs Connected to AC Low-Voltage Power Systems\u2014Requirements and Test Methods<\/em>.\r\n                <a\r\n                    href=\"https:\/\/webstore.iec.ch\/en\/publication\/65314\"\r\n                    target=\"_blank\"\r\n                    rel=\"noopener noreferrer\"\r\n                >View IEC record<\/a>.\r\n            <\/li>\r\n\r\n            <li id=\"ly48-ref-5\">\r\n                IEC 61643-12:2020,\r\n                <em>Selection, Operation, Location and Coordination Principles for AC SPDs<\/em>.\r\n                <a\r\n                    href=\"https:\/\/webstore.iec.ch\/en\/publication\/32531\"\r\n                    target=\"_blank\"\r\n                    rel=\"noopener noreferrer\"\r\n                >View IEC record<\/a>.\r\n            <\/li>\r\n\r\n            <li id=\"ly48-ref-6\">\r\n                IEC 61643-31:2018,\r\n                <em>Requirements and Test Methods for SPDs for Photovoltaic Installations<\/em>.\r\n                <a\r\n                    href=\"https:\/\/webstore.iec.ch\/en\/publication\/26931\"\r\n                    target=\"_blank\"\r\n                    rel=\"noopener noreferrer\"\r\n                >View IEC record<\/a>.\r\n            <\/li>\r\n\r\n            <li id=\"ly48-ref-7\">\r\n                IEC 61643-32:2017,\r\n                <em>Selection, Installation and Coordination of SPDs for Photovoltaic Systems<\/em>.\r\n                <a\r\n                    href=\"https:\/\/webstore.iec.ch\/en\/publication\/30774\"\r\n                    target=\"_blank\"\r\n                    rel=\"noopener noreferrer\"\r\n                >View IEC record<\/a>.\r\n            <\/li>\r\n        <\/ol>\r\n    <\/section>\r\n\r\n<\/article>\r\n\r\n<script type=\"application\/ld+json\">\r\n{\r\n    \"@context\": \"https:\/\/schema.org\",\r\n    \"@graph\": [\r\n        {\r\n            \"@type\": \"Article\",\r\n            \"@id\": \"https:\/\/www.cnspd.com\/replace-spd-after-lightning-strike\/#article\",\r\n            \"mainEntityOfPage\": {\r\n                \"@type\": \"WebPage\",\r\n                \"@id\": \"https:\/\/www.cnspd.com\/replace-spd-after-lightning-strike\/\"\r\n            },\r\n            \"headline\": \"Should an SPD Be Replaced After a Lightning Strike?\",\r\n            \"description\": \"Should you replace an SPD after a lightning strike? Use the indicator, remote alarm, damage and backup protection to decide what must be replaced.\",\r\n            \"image\": [\r\n                \"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/07\/spd-after-lightning-inspection-decision-flow.webp\",\r\n                \"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/07\/spd-condition-after-lightning-comparison.webp\",\r\n                \"https:\/\/www.cnspd.com\/wp-content\/uploads\/2026\/07\/replacement-spd-model-confirmation-checklist.webp\"\r\n            ],\r\n            \"author\": {\r\n                \"@type\": \"Organization\",\r\n                \"name\": \"LEEYEE Technical Team\"\r\n            },\r\n            \"reviewedBy\": {\r\n                \"@type\": \"Organization\",\r\n                \"name\": \"LEEYEE Surge Protection Team\"\r\n            },\r\n            \"publisher\": {\r\n                \"@type\": \"Organization\",\r\n                \"name\": \"LEEYEE\",\r\n                \"url\": \"https:\/\/www.cnspd.com\/\"\r\n            },\r\n            \"datePublished\": \"2026-07-16\",\r\n            \"dateModified\": \"2026-07-16\",\r\n            \"inLanguage\": \"en\",\r\n            \"about\": [\r\n                {\r\n                    \"@type\": \"Thing\",\r\n                    \"name\": \"Surge Protective Device Replacement\"\r\n                },\r\n                {\r\n                    \"@type\": \"Thing\",\r\n                    \"name\": \"Lightning Strike Inspection\"\r\n                },\r\n                {\r\n                    \"@type\": \"Thing\",\r\n                    \"name\": \"SPD Maintenance\"\r\n                }\r\n            ]\r\n        },\r\n        {\r\n            \"@type\": \"FAQPage\",\r\n            \"@id\": \"https:\/\/www.cnspd.com\/replace-spd-after-lightning-strike\/#faq\",\r\n            \"mainEntity\": [\r\n                {\r\n                    \"@type\": \"Question\",\r\n                    \"name\": \"Does every SPD need to be replaced after a lightning strike?\",\r\n                    \"acceptedAnswer\": {\r\n                        \"@type\": \"Answer\",\r\n                        \"text\": \"No. Replace the SPD when its status indication, remote alarm, physical condition or approved inspection result shows that it is no longer suitable for service. A documented normal result may allow it to remain in operation.\"\r\n                    }\r\n                },\r\n                {\r\n                    \"@type\": \"Question\",\r\n                    \"name\": \"Can an SPD stay in service if its indicator is still green?\",\r\n                    \"acceptedAnswer\": {\r\n                        \"@type\": \"Answer\",\r\n                        \"text\": \"Yes, when the complete post-event inspection is normal. The green indication generally means the monitored failure state has not been reached, but it does not calculate exact remaining surge capacity.\"\r\n                    }\r\n                },\r\n                {\r\n                    \"@type\": \"Question\",\r\n                    \"name\": \"Does an SPD remote alarm prove that lightning damaged it?\",\r\n                    \"acceptedAnswer\": {\r\n                        \"@type\": \"Answer\",\r\n                        \"text\": \"Not by itself. A conventional remote contact normally reports the device's monitored status. Inspect the SPD locally and investigate the event before deciding the cause.\"\r\n                    }\r\n                },\r\n                {\r\n                    \"@type\": \"Question\",\r\n                    \"name\": \"Can the SPD backup breaker simply be reset?\",\r\n                    \"acceptedAnswer\": {\r\n                        \"@type\": \"Answer\",\r\n                        \"text\": \"Not before inspection. The breaker may have operated because of SPD failure, a wiring fault, short circuit, abnormal system voltage or unsuitable coordination.\"\r\n                    }\r\n                },\r\n                {\r\n                    \"@type\": \"Question\",\r\n                    \"name\": \"Should all modules in a three-phase SPD be replaced together?\",\r\n                    \"acceptedAnswer\": {\r\n                        \"@type\": \"Answer\",\r\n                        \"text\": \"Not automatically. One compatible cartridge can be replaced when only that module failed and the base and remaining modules are undamaged. Full-set replacement is a maintenance and risk decision.\"\r\n                    }\r\n                },\r\n                {\r\n                    \"@type\": \"Question\",\r\n                    \"name\": \"What is needed to order the correct replacement module?\",\r\n                    \"acceptedAnswer\": {\r\n                        \"@type\": \"Answer\",\r\n                        \"text\": \"Confirm the application, system voltage, Uc or Ucpv, SPD type, Iimp, In, Imax, Up, pole configuration, cartridge, base, remote contact and backup protection.\"\r\n                    }\r\n                }\r\n            ]\r\n        }\r\n    ]\r\n}\r\n<\/script>\r\n\r\n<script>\r\n(function () {\r\n    \"use strict\";\r\n\r\n    var buttons = document.querySelectorAll(\r\n        \"#ly48-spd-after-lightning .leeyee-site-popup-btn\"\r\n    );\r\n\r\n    buttons.forEach(function (button) {\r\n        if (button.dataset.ly48Bound === \"true\") {\r\n            return;\r\n        }\r\n\r\n        button.dataset.ly48Bound = \"true\";\r\n\r\n        button.addEventListener(\"click\", function (event) {\r\n            event.preventDefault();\r\n\r\n            var popupTrigger = document.querySelector(\".w-popup.ush_popup_1\");\r\n\r\n            if (popupTrigger) {\r\n                popupTrigger.click();\r\n                return;\r\n            }\r\n\r\n            window.open(\"\/contact\/\", \"_blank\", \"noopener,noreferrer\");\r\n        });\r\n    });\r\n})();\r\n<\/script>\r\n\r\n<\/div>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Post-lightning SPD replacement decision A lightning event does not automatically mean that every surge protective device must be replaced. It does mean that the affected protection points should be inspected and the result documented. The replacement decision depends on the status indicator, remote alarm, physical condition, backup protection and the consequence of leaving an uncertain&#8230;<\/p>","protected":false},"author":18,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,488,422],"tags":[],"class_list":["post-30234","post","type-post","status-publish","format-standard","hentry","category-news","category-surge-protection","category-industry-news"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Replace an SPD After a Lightning Strike? Decision Guide<\/title>\n<meta name=\"description\" content=\"Should you replace an SPD after a lightning strike? 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