questionable grounding?

Status
Not open for further replies.

daddyray

Member
After reading about separately grounded phone lines being a bad thing, I took a look at mine. The line comes in on the opposite side of the house from the service, and was grounded to its own ground rod. In an attempt to equalize the potential, I ran a ground wire to the nearest outdoor faucet, (which I tested for continuity to the system ground). Is this allowable?
Should I have disconnected the ground rod and gone straight from the phone box ground wire to the faucet?
Or am I required to go all the way around the house to the service panel (and disconnect from the phone line ground rod)?
David
 
800.40(D) A bonding jumper not smaller than #6 AWG copper or equivalent shall be connected between the communications grounding electrode and power grounding electrode system.


Suitable Ground. The NEC specifies that any of the following nearest accessible locations are considered suitable as ground for communications equipment [800.40(B)(1), 810.21(F), 820.40(B)(1) and 830.40(B)(1)].

* The building or structure grounding electrode system as covered in 250.50,
* The grounded interior metal water piping system within 5 ft from the point of entrance into the building as covered in 250.52,
* The power service accessible means external to enclosures as covered in 250.94,
* The metallic power service raceway,

The service equipment enclosure, or The building or structure grounding electrode conductor or the grounding electrode conductor metal enclosures.

Any grounding electrode added for communications systems is required to be bonded with a 6 AWG or larger conductor to the building or structure grounding electrode system in accordance with 800.40(D), 810.21(J), 820.40(D), and 830.40(D).
 
Last edited:
The phone company in my area quit driving their own rods a few years back. If the phone has to hit the opposite side of the house from the electric service for some reason, they won't even run the subscriber drop until an electrician gets them a bond wire of some sort on that side of the house. I'm in favor of that. The first time I ran into this, the customer was ticked, however. Naturally, they thought I should have been tuned into some sort of electrical psychic energy and somehow knew about this policy change on the part of the phone company.
 
You should take a look at 800.100(B)(1). What you have now is better than nothing but it isn't code compliant.
 
Status
Not open for further replies.
Top