ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Potseal 11
Recent Posts
600 KW 120/208 3 Phase Y protection
by Yooperup. 07/24/17 12:20 PM
1913 American Electrician's Handbook
by gfretwell. 07/20/17 01:08 PM
Green House wiring
by ghost307. 07/20/17 09:10 AM
Permit Snafus...AHJs and Contractors Jump in
by HotLine1. 07/18/17 08:06 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
239,307 Are you busy
174,751 Re: Forum
167,141 Need opinion
Who's Online Now
0 registered members (), 73 guests, and 9 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#65630 - 05/09/06 01:56 PM Derating  
rocha12  Offline
Junior Member
Joined: May 2006
Posts: 5
Where in the code does it say you can only load a breaker to 80%?


Work Gear for Electricians and the Trades

#65631 - 05/09/06 03:23 PM Re: Derating  
eprice  Offline
Member
Joined: Aug 2003
Posts: 64
North Logan, Utah, USA
I think you are thinking of 210.20(A). The rule only applies for continuous loads. Note that requiring the OCPD to be not less than 125% of the continuous load is another way of saying that the continuous load may not be more than 80% of the OCPD rating.



Member Spotlight
akmaster
akmaster
alaska
Posts: 70
Joined: June 2012
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: 0.013s Queries: 14 (0.003s) Memory: 0.7420 MB (Peak: 0.8597 MB) Zlib enabled. Server Time: 2017-07-24 20:49:38 UTC