Gec

Status
Not open for further replies.
Hendrix said:
Is table 250-122 right for the grounding to the water meter from main disconnet? Which would be #6cu for 200a?
Click to expand...

No see 250.66.......would require a #4 reason that can carry a fault. The sole GEC is only for objectionable current as in stray lightning current....simple analogy only.
 
Hendrix said:
Is table 250-122 right for the grounding to the water meter from main disconnet? Which would be #6cu for 200a?
Click to expand...

Is there a requirement to bond the water meter ???? :D
even with PVC piping ?:)

As I jest, I also jump on my soap box and say that don't understand why a metal water pipe which is not a grounding electrode must be bonded per 250.66 where "other metal piping" does not carry such requirement.
 
augie47 said:
Is there a requirement to bond the water meter ???? :D
even with PVC piping ?:)

As I jest, I also jump on my soap box and say that don't understand why a metal water pipe which is not a grounding electrode must be bonded per 250.66 where "other metal piping" does not carry such requirement.
Click to expand...
It's on the "street side". It is a being used as a grounding electrode.
 
augie47 said:
Is there a requirement to bond the water meter ???? :D
even with PVC piping ?:)

As I jest, I also jump on my soap box and say that don't understand why a metal water pipe which is not a grounding electrode must be bonded per 250.66 where "other metal piping" does not carry such requirement.
Click to expand...

If the water main is plastic coming in from the street or well it does not meet the requirements of 250.52 A 1, so 250. 66 would not apply. In my area ( se Mass ) all local insp. except one use 250. 122 for this situation.
 
MASTERFRANK said:
If the water main is plastic coming in from the street or well it does not meet the requirements of 250.52 A 1, so 250. 66 would not apply. In my area ( se Mass ) all local insp. except one use 250. 122 for this situation.
Click to expand...

agree BUT 250.104(A) uses 250.66 also
 
Status
Not open for further replies.
Top