ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Potseal 10
Recent Posts
Old decora style outlets
by Lostazhell. 04/22/17 07:59 PM
Dimmable LED 2x4 lay in fixtures
by gfretwell. 04/22/17 01:14 PM
Permit Snafus...AHJs and Contractors Jump in
by gfretwell. 04/22/17 01:11 PM
How do you find a good employee?
by HotLine1. 04/22/17 10:44 AM
Electrode boilers question
by SteveFehr. 04/21/17 08:32 AM
New in the Gallery:
SE cable question
Popular Topics(Views)
234,491 Are you busy
169,152 Re: Forum
162,505 Need opinion
Who's Online Now
0 registered members (), 60 guests, and 8 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#50407 - 04/01/05 05:19 PM Feeder/Branch circuits  
Dnkldorf  Offline
Member
Joined: Dec 2004
Posts: 1,064
nowhere usa
Are all circuits leaving a panel board, protected by breakers considered branch circuits only?

Or Feeders also?


Work Gear for Electricians and the Trades

#50408 - 04/01/05 05:27 PM Re: Feeder/Branch circuits  
iwire  Offline
Moderator
Joined: Jan 2003
Posts: 4,391
North Attleboro, MA USA
Circuits leaving a panel can be either branch circuits or feeders.

Quote
Branch Circuit. The circuit conductors between the final overcurrent device protecting the circuit and the outlet(s).


Quote
Feeder. All circuit conductors between the service equipment, the source of a separately derived system, or other power supply source and the final branch-circuit overcurrent device.


Bob Badger
Construction & Maintenance Electrician
Massachusetts

#50409 - 04/01/05 07:22 PM Re: Feeder/Branch circuits  
BobH  Offline
Member
Joined: Oct 2004
Posts: 135
Newfane, N.Y USA
So if a main panel houses a 60a breaker feeding a main lug sub, the conductors between the 60a breaker and the sub-panel are feeders.


#50410 - 04/01/05 07:40 PM Re: Feeder/Branch circuits  
SolarPowered  Offline
Member
Joined: Jul 2004
Posts: 625
Palo Alto, CA, USA
But, it's not necessarily a "feeder" for purposes of Table 310.15(B)(6).

YMMV.


#50411 - 04/01/05 08:18 PM Re: Feeder/Branch circuits  
BobH  Offline
Member
Joined: Oct 2004
Posts: 135
Newfane, N.Y USA
Why would it not necessarily be a feeder? Are you saying it would be a service conductor(s) if this was a separate building? Please elaborate.


#50412 - 04/01/05 08:49 PM Re: Feeder/Branch circuits  
SolarPowered  Offline
Member
Joined: Jul 2004
Posts: 625
Palo Alto, CA, USA
I'll refer you to this discussion about 310:15(B)(6):
https://www.electrical-contractor.net/ubb/Forum2/HTML/001450.html


#50413 - 04/01/05 09:30 PM Re: Feeder/Branch circuits  
BobH  Offline
Member
Joined: Oct 2004
Posts: 135
Newfane, N.Y USA
Thanks, that was exhausting but I guess I asked for it.



Member Spotlight
Potseal
Potseal
Saskatchewan
Posts: 218
Joined: February 2013
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.017s Queries: 14 (0.003s) Memory: 0.7811 MB (Peak: 0.9313 MB) Zlib enabled. Server Time: 2017-04-23 21:42:36 UTC