ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Positive Ground on 125 VDC Station Batteries
by The Watt Doctor. 05/23/19 08:55 AM
2020 is at the printers.
by gfretwell. 05/22/19 10:11 AM
Chinese wire symbols?
by Texas_Ranger. 05/19/19 03:09 PM
Pool - Daisy chained GFCI
by gfretwell. 05/18/19 01:30 PM
110.26 working clearances
by HotLine1. 05/14/19 02:08 PM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
0 registered members (), 11 guests, and 26 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
UPS system #198101
01/12/11 08:24 PM
01/12/11 08:24 PM
Niko  Offline OP
Member
Joined: Aug 2006
Posts: 356
Campbell, CA
I have a client who has 3 UPS system with a total 10KVA capacity. They currently have a 30Amp feeder with a Subpanel in the communication room.
They have asked me to install a 60Amp feeder for additional UPS units.

here are the question/s that i have.
>I assume i need to have a disconnect within site of the UPS units? Right?
>I will size the feeders to 125%?
>Existing, the UPS feeds the Existing sub panel by a SOO cord, is that O.K.

Thank you for your input


Be kind to your neighbor, he knows where you live

Work Gear for Electricians and the Trades
Re: UPS system [Re: Niko] #198116
01/12/11 11:44 PM
01/12/11 11:44 PM
HotLine1  Offline

Member
Joined: Apr 2002
Posts: 7,090
Brick, NJ USA
Niko:

Yes to the disconnect.
125% is OK
Possibly OK, but more info is needed. Is the connection from the UPS via a cord cap? Is there frequent 'swapping' of the UPS? IF yes, then the cord could be acceptable.



John
Re: UPS system [Re: HotLine1] #198117
01/13/11 12:57 AM
01/13/11 12:57 AM
Niko  Offline OP
Member
Joined: Aug 2006
Posts: 356
Campbell, CA
There is no frequent swapping of UPS. Currently the UPS is cord & cap connected to the feeder receptacle sized 6AWG then the UPS feeds the subpanel sized 6AWG cord.





Be kind to your neighbor, he knows where you live


Featured:

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

 

Member Spotlight
mxslick
mxslick
Atomic City, ID USA
Posts: 803
Joined: October 2004
Show All Member Profiles 
Top Posters(30 Days)
Popular Topics(Views)
255,211 Are you busy
191,278 Re: Forum
181,046 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.021s Queries: 15 (0.005s) Memory: 0.9513 MB (Peak: 1.0779 MB) Zlib enabled. Server Time: 2019-05-25 13:39:08 UTC