Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.


Grounding for outside plant cables

Grounding for outside plant cables

I'm doing a charity job (free) for a small museum. My scope of work is deploying an aerial RG-11 cable for data, and re-using an existing 12 pair aerial cable for voice.

For clarity, I would prefer to use fiber for the data, their finances force use of coax/HNPA adapter for the network

Both the coax and the voice cables have UL 497 Listed Primary Protection, grounding is 8' rods, 16 feet apart, grounding conductor is stranded #6 with a green jacket. Both protectors connect to an intersystem bonding termination.

Here's the issue: The building does not appear to have a grounding electrode system [250.50] for the electrical service as power is fed from another building by a 70 year old underground service.

Here's the question: Where does the IBT connect to to meet NEC 250.94 ?

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members!


Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close