The surge arrestor function like a valve that will allow a certain range of HEALTHY voltages to pass through, WHILE it will drain a certain predetermines harmful voltage to the ground.
surge arrestor is used to protect a home, a device, from harmful overvoltage that could cause fire, damage a home, or electrical/electronics device.
TYPES OF SURGE ARRESTORS.
1, AC SURGE
2. DC SURGE.
An ac surge arrestor is used to protect a home of an appliance from power surges which could be as a result of
1) lightning strike
3) line fault.
DC SURGE ARRESTOR
Is used to protect dc surges, mostly in solar power system.
NOTE SURGE ARRESTORS NEEDS STRONG EARTH TO FUNCTION EFFECTIVELY,