On 6/12/24 10:07, mick.crane wrote:
On 2024-05-29 16:08, gene heskett wrote:
Except at the service. Properly wired, the neutral and static grounds
are bonded ONLY in the service box. I am constantly amazed at the
people who call themselves electricians, who think the static ground
and the neutral are interchangeable just because they are bonded at
the service.
AIUI the distribution neutral is hammered into the ground at the
substation/generator.
Some electricians say you don't need the earth, another explained it is
necessary to locally drive a conductor into the ground and attach the
earth to that in case something happens to the distribution neutral the
electric has somewhere to go to trip a relay in the house.
mick
.
And here in the USA, the NEC demands two ground rods separated by enough
distance it actually is two good grounds. I have had zero problems since
making it so in 2008 as I was building a garage on the end of the house
and upgrading the service from a 60 amp pushmatic to a 200 amp SQD. The
house is still a 60 but is a subcircuit now.
Cheers, Gene Heskett, CET.
--
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author, 1940)
If we desire respect for the law, we must first make the law respectable.
- Louis D. Brandeis
