ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Changing a Bulb
by gfretwell. 07/14/18 03:12 PM
Tray cable?
by gfretwell. 07/11/18 10:18 PM
Eaton Heavy Duty 30A and 60A Safety Switches
by Admin. 07/11/18 09:49 PM
ORTOVOX Recalls Avalanche Transceivers
by Admin. 07/11/18 09:44 PM
Tingle off the water spigot
by gfretwell. 07/08/18 12:58 PM
New in the Gallery:
Plug terminals
Housebilding DIY wiring
Who's Online Now
0 registered members (), 12 guests, and 14 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Internet bonding to sub-panel #216435
12/16/15 07:42 PM
12/16/15 07:42 PM
F
flitch  Offline OP
New Member
Joined: Dec 2015
Posts: 2
Western NY
Homeowner has Time Warner internet telephone cable direct to sub-building. Sub-building serviced by 4 wire 150A sub-panel fed from main 200A panel 100 feet away with ground rods located (1) at the main panel and (2) at the sub-panel, both bonded back to their respective ground bus. The sub-building has gas heat so the CSST pipe is bonded to the ground rod (for convenience) vs being bonded inside the panel. Can the internet cable be bonded to the same rod which would then make a loop of the internet cable directly from the sub-panel (via the cable) to the pole? Isnít this likely to be current surge problem for the internet cable fed devices.

2017 / 2014 NEC & Related Books and Study Guides
Re: Internet bonding to sub-panel [Re: flitch] #216436
12/16/15 09:45 PM
12/16/15 09:45 PM
G
gfretwell  Online Content

Member
Joined: Jul 2004
Posts: 9,242
Estero,Fl,usa
More grounding is better in a surge situation. You want a single point ground on your side of the building entrance, preferably right where the main bonding jumper connects to the grounding electrode conductor (same bus bar). That should be where the inter system grounding bus lands. Any "loop" created on the line side is your phone company's problem and they are well prepared to deal with it. They reground their stuff at every drop.


Greg Fretwell
Re: Internet bonding to sub-panel [Re: flitch] #216442
12/18/15 03:31 PM
12/18/15 03:31 PM
F
flitch  Offline OP
New Member
Joined: Dec 2015
Posts: 2
Western NY
Thanks, Greg.


Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
MarkC10
MarkC10
CA, Inland Empire
Posts: 43
Joined: September 2013
Show All Member Profiles 
Top Posters(30 Days)
Admin 5
Popular Topics(Views)
248,105 Are you busy
185,557 Re: Forum
174,864 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.020s Queries: 15 (0.004s) Memory: 0.9514 MB (Peak: 1.0754 MB) Zlib enabled. Server Time: 2018-07-17 21:19:29 UTC