ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Potseal 11
Recent Posts
Electrode boilers question
by annemarie1. 04/27/17 01:40 PM
Why cables look like they do
by LongRunner. 04/26/17 09:36 AM
Dimmable LED 2x4 lay in fixtures
by HotLine1. 04/24/17 05:43 PM
Old decora style outlets
by Lostazhell. 04/22/17 07:59 PM
Permit Snafus...AHJs and Contractors Jump in
by gfretwell. 04/22/17 01:11 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
234,840 Are you busy
169,613 Re: Forum
162,863 Need opinion
Who's Online Now
0 registered members (), 52 guests, and 11 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#165861 - 07/06/07 04:21 PM conductor inductance  
barbwire  Offline
Junior Member
Joined: May 2003
Posts: 17
O.K. next question, I have a 110/208 volt sw gear with 2 sections, feeding out to 6 closets are 2 sets of 400 amp feeders,paralleled, (fed underground), if I want to keep a good pattern in my riser bank I may have to utilize two conduits in different sections of gear, they come out of the ground about 4 ft apart, as long as I keep the conductors together out of each conduit does this comply with 300-20?


2017 / 2014 NEC & Related Books and Study Guides

#165887 - 07/07/07 02:11 AM Re: conductor inductance [Re: barbwire]  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,069
Estero,Fl,usa
You didn't say if these were metal raceways but if you keep the conductor sets grouped it really doesn't make any difference. Keep all the conductors from each circuit in one pipe. Where you have parallel sets, keep each set together (A/B/C/N in one pipe A/B/C/N from the parallel set in another pipe)
All of the "Goes Outtas" have to balance all of the "Goes Innas"


Greg Fretwell

#165897 - 07/07/07 10:18 AM Re: conductor inductance [Re: gfretwell]  
barbwire  Offline
Junior Member
Joined: May 2003
Posts: 17
Sorrry, raceways are PVC underground with a change over to rigid coming through the slab. Thanks for the reply, makes sense.



Member Spotlight
Bill Addiss
Bill Addiss
NY, USA
Posts: 3,878
Joined: October 2000
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: 0.010s Queries: 15 (0.002s) Memory: 0.7515 MB (Peak: 0.8784 MB) Zlib enabled. Server Time: 2017-04-27 22:45:48 UTC