What Is a Power Surge?
A power surge is a brief rise in electrical voltage above its normal level. Voltage is the electrical pressure that moves current through a circuit. A surge can travel through wiring and reach connected equipment. Lightning and changes in electrical equipment can create surges.
Quick Facts About Power Surge
- Category
- Electrical voltage event
- Used for
- Describing a voltage spike
- Common confusion
- Power outage
- Also called
- Voltage Surge, Voltage spike
- Often discussed with
- Whole-House Surge Protection
Key Takeaways About Power Surge
- A surge raises voltage, while an outage interrupts power.
- Whole-house protection works at the electrical panel.
- A circuit breaker isn't the same as a surge protector.
How Power Surge Works
A power surge can enter a home through its incoming electrical supply. It can also begin inside the home when equipment switches on or off. The extra voltage travels along connected wires and can reach appliances and electronics. Related service: Whole-House Surge Protection.
Related glossary terms: Surge Protector, Breaker Panel, Grounding.
A surge protector responds when voltage rises above its operating threshold. It limits the voltage passed along the circuit by redirecting excess current. A whole-house device usually connects at the electrical panel, where power enters the home's circuits.
Protection at the panel doesn't make every connected device immune to damage. Some equipment can also receive a surge through other connected lines. A surge protector's status indicator can show whether its protective parts are still working. The meaning of that indicator depends on the device.
From the Chris Miller Electric team
When we discuss whole-house surge protection, we look at the electrical panel and the home's wiring. We also check the surge protector's connection and status indicator. The panel layout helps us determine where a suitable device can connect.
Power Surge in Practice: A Real-World Example
A Fort Wayne homeowner wants to protect appliances after a nearby storm. An electrician checks the panel and selects a compatible whole-house surge protector for the home's electrical system.
Related Services
Related Terms
Surge Protector
A surge protector is a device that limits sudden rises in electrical voltage reaching connected equipment.
Breaker Panel
A breaker panel is an electrical enclosure that directs power to circuits throughout a building.
Grounding
Grounding is an electrical connection that links a wiring system to the earth through a conductor and a grounding electrode.
Circuit Breaker
A circuit breaker is a protective device that shuts off electrical current when a circuit draws too much current.
Chris Miller Electric
Have Questions About Power Surge?
Contact Chris Miller Electric for practical guidance on Power Surge and related 24 hour electrician work in Fort Wayne.