ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
NEC 2017_392.22(B)(1)(b)
_What's the smallest width

by gfretwell - 09/21/19 11:37 PM
Another weird NEC code question on Feeder Taps
by gfretwell - 09/21/19 11:35 PM
Kichler Lighting Recalls Pendant Lights
by Admin - 09/18/19 08:47 PM
Does a 'normal 3ph-AC motor' include capacitors?
by gfretwell - 09/18/19 01:20 AM
NEC Question_Cord-&-Plug EGC shorter then Neutral
by pcsailor - 09/16/19 05:26 AM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
0 registered members (), 7 guests, and 11 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
conductor inductance #165861 07/06/07 04:21 PM
Joined: May 2003
Posts: 17
B
barbwire Offline OP
Junior Member
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
Re: conductor inductance [Re: barbwire] #165887 07/07/07 02:11 AM
Joined: Jul 2004
Posts: 9,394
G
gfretwell Offline
Member
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
Re: conductor inductance [Re: gfretwell] #165897 07/07/07 10:18 AM
Joined: May 2003
Posts: 17
B
barbwire Offline OP
Junior Member
Sorrry, raceways are PVC underground with a change over to rigid coming through the slab. Thanks for the reply, makes sense.


Featured:

2020 National Electrical Code
2020 National Electrical
Code (NEC)

* * * * * * *

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 5
Popular Topics(Views)
258,733 Are you busy
194,308 Re: Forum
183,762 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3