- Surge protective device (SPD): A device designed to protect electrical and electronic equipment from voltage spikes and transient overvoltages.
- Transient overvoltage: A brief increase in voltage that exceeds the normal electrical supply voltage.
- Surge protection: The act of safeguarding electrical systems and equipment against voltage surges.
- Voltage spike: A sudden and brief increase in voltage that can potentially damage electronic devices.
- Lightning protection: SPDs are often used to protect against voltage surges caused by lightning strikes.
- Transient voltage surge suppressor (TVSS): Another term used to describe surge protective devices.
- Surge current: The current that flows during a voltage surge event.
- Surge rating: The maximum voltage or current that an SPD can handle without failing.
- Clamping voltage: The voltage level at which an SPD activates and diverts excess voltage to protect connected equipment.
- Joules rating: The energy absorption capacity of an SPD, measured in joules, indicating how much energy it can handle during a surge event.
- Response time: The time it takes for an SPD to respond and divert excess voltage during a surge event.
- Surge events: Occurrences such as lightning strikes, power grid fluctuations, or electrical switching operations that can cause voltage surges.
- Grounding: Proper grounding of SPDs is crucial for effective surge protection.
- Circuit protection: SPDs are typically installed at the electrical panel to protect the entire circuit or specific equipment.
- UL 1449 standard: A widely recognized safety standard for SPDs in the United States.
Post time: Jun-24-2023