×
INTELLIGENT WORK FORUMS
FOR COMPUTER PROFESSIONALS

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!
  • Students Click Here

*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.

Students Click Here

Jobs

Grounding for outside plant cables

Grounding for outside plant cables

Grounding for outside plant cables

(OP)
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 ?

RE: Grounding for outside plant cables

I'm betting you already have the answer but i would say setup a seperate grounding bar in the comm room and ground to that. Keep it separate of the electrical system to prevent power feedback and possible damage in the event of a power spike or short,

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