currently refurbing an old house.
Had a sparky on the job to quote me for installing a new consumer unit.
During his inspection he said that he couldn't locate an earth cable
coming from the mains feed. No sign of earth entering from anywhere
Where can I run a fresh earth cable from too my new consumer unit?
Your question doesn't appear complete enough for an answer but I am
throwing something out there anyway in the hopes of getting a dialog
started eventually leading to your answer. Let me first start by
saying I don't know if I heard you right but I think you said the
"mains feed" (aka Service Entrance Cable) doesn't have an equipment
ground and that confused you. The equipment ground and neutral are
bound at the main breaker box so a seperate equipment ground is not
necessary in SE cable. (some people object to the use of neutral but
we will use it here) You do however need to run a #4 bare copper wire
from your main breaker box grounding lug to a grounding clamp on your
metalic water pipe within 5 feet of where it enters your home. You
should also continue this wire on to a grounding rod and connect it
with an acorn clamp.
Hope this helps,
a) I live in the USA and so only know the NEC and even then only part
of that. You could easily live in the UK, etc where the rules are
b) You didn't provide enough information so I filled in some blanks.
For instance, a #6 bare copper wire might work depending on your
situation, you might not have metalic water pipes, etc.
c) This is not a "full answer" but it might be enough to get you
started on a google search.
He's probably in the UK.
sparky == electrician
consumer unit == breaker panel
earth == ground
mains feed == electric supply fom power company.
His sparky should know what the rules are, and where to find a earth
In the US, we would drive a ground rod, and bond it to the building
water supply, and to the main service panel.
-- Welcome My Son, Welcome To The Machine --
Bob Vaughan | techie @ tantivy.net |
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