ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
1897 paper on 110-220 incandescent lamps
by dsk - 08/25/19 01:02 PM
Southwire Recalls Electrical Outlet Boxes
by Admin - 08/21/19 06:39 PM
Fuse blower plug?
by HotLine1 - 08/20/19 01:50 PM
100 year old Light Bulb
by HotLine1 - 08/20/19 01:26 PM
Forum Updates Coming Soon.
by Admin - 08/18/19 01:55 PM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
0 registered members (), 5 guests, and 12 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
bonding electrodes, separate buildings(common area circuits #49367 03/04/05 11:43 PM
Joined: Jun 2002
Posts: 186
M
mj Offline OP
Member
given: 2 separate buildings , by use of a firewall, each building as its own service. ( common area branch circuits suppiled from one of the services is used to supply secuity lighting for both buildings) Should the electrodes from each service be bonded together to stablize any difference in potential ? What code section requires the electrode to be bonded in this case ?

Work Gear for Electricians and the Trades
Re: bonding electrodes, separate buildings(common area circuits #49368 03/05/05 01:17 AM
Joined: Dec 2003
Posts: 886
H
hbiss Offline
Member
Nothing requires them to be bonded together if they are truly separate in separate buildings. This is not the case though, there are common area circuits serving both buildings from one of the services. Also, are there two separate water services from the street (or one that splits?) and do they require bonding? Are the meters and any disconnects next to each other?

-Hal

Re: bonding electrodes, separate buildings(common area circuits #49369 03/05/05 08:00 AM
Joined: Jun 2004
Posts: 610
S
shortcircuit Offline
Member
210.25 prohibits branch circuits from one dwelling to supply common area lighting.

IMO...you will need a third meter for common area lighting.

I would just wire the lighting for the each side of the buildings area from that sides service.

shortcircuit

Re: bonding electrodes, separate buildings(common area circuits #49370 03/05/05 12:07 PM
Joined: Jun 2002
Posts: 186
M
mj Offline OP
Member
the services are located on each builing,about 200 feet apart, this is a multifamily structure with a firewal. My concerns were because both building security lights are supplied from one owner's panel, the electrodes from both buildings should be bonded ?

Re: bonding electrodes, separate buildings(common area circuits #49371 03/07/05 05:54 PM
Joined: Feb 2005
Posts: 44
B
boggerbutt2454 Offline
Member
If this is a multi-family building why didn't you provide for a house panel? I hope the owner of the panel feeding the security lights never gets mad at his neighbors!!

Re: bonding electrodes, separate buildings(common area circuits #49372 03/07/05 08:37 PM
Joined: Dec 2003
Posts: 886
H
hbiss Offline
Member
210.25 prohibits branch circuits from one dwelling to supply common area lighting.

Yup, I missed that one. Shows how much multifamily I do. [Linked Image]

I assumed that the owner would occupy the unit with the lights on his meter. Even if this were allowed what happens if the unit gets sold?

I agree with the others- either split the lighting up and put it on the respective meters or provide a house meter. I think which way to go would depend on the layout and where the lighting is located. I don't think any unit should be paying for site lighting.

-Hal

Re: bonding electrodes, separate buildings(common area circuits #49373 03/07/05 09:17 PM
Joined: Mar 2005
Posts: 212
G
Gregtaylor Offline
Member
A little off the actual question, I guess, but I'm confused about the actual building. Is this one(1) building or two(2)? If they are physically attached in any way above ground they are a single building. Why are there 2 services? Or am I reading this wrong?

Sorry, brain fade I guess. I see the situation now. But still, you can't feed house lighting from one service if it penetrates the other living space. That's what the firewall is there for to begin with.

[This message has been edited by Gregtaylor (edited 03-07-2005).]


Featured:

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

 

Member Spotlight
HappyElectrician
HappyElectrician
Penn USA
Posts: 31
Joined: December 2011
Show All Member Profiles 
Top Posters(30 Days)
Admin 21
GeneSF 6
Popular Topics(Views)
257,985 Are you busy
193,707 Re: Forum
183,316 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3