Talk of The Villages Florida - View Single Post - Ground faults, etc.
Thread: Ground faults, etc.
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Old 07-14-2011, 06:51 PM
westom westom is offline
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Quote:
Originally Posted by pauld315 View Post
I have a whole house power surge protector but I doubt that would help if the house was hit by lightning.
'Whole house' protectors are designed for lightning protection. The typical lightning strike is 20,000 amps. So a minimally sufficient 'whole house' protector starts at 50,000 amps.

Specifications associated with protectors are based upon the classic 8/20 microsecond waveform. 8/20 is the classic definition of a lightning strike. Effective protectors are for direct lightning strikes. Even specification numbers are based in parameters for lightning. Effective protectors make lightning as well as other lesser transients irrelevant. 'Whole house' protectors are rated to earth direct lightning strikes and remain functional.

If a 'whole house' protector and damage exist, then a most likely defect is earthing of that protector. Or any one wire wire inside some cable entering without proper earthing.