ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Switched Receptacles -Top or Bottom?
by gfretwell - 07/28/21 10:06 PM
Lowes Selling this fan
by timmp - 07/25/21 10:58 PM
How's all our Non-US folks doing?
by djk - 07/23/21 09:13 PM
Do You Travel?
by Bill Addiss - 07/20/21 04:26 PM
Backup Generator Done Right
by timmp - 07/18/21 12:20 PM
New in the Gallery:
February, North East Indiana
February, North East Indiana
by timmp, July 25
Red Green would be proud
Red Green would be proud
by timmp, July 25
Who's Online Now
0 members (), 9 guests, and 20 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#89643 10/12/04 12:09 PM
Joined: Jul 2002
Posts: 38
E
Electra Offline OP
Member
Can anyone tell me where the value of 1500 VA comes from for the small appliance and laundry calcs. This only works out to 12.5 amps per circuit, but they are 20 amp circuits. I thought it might be some kind of demand factor, but we are already including this figure when we take the lighting demand - thus it is being reduced twice?

If this is some sort of demand, how did it get decided on 1500VA?

Thanks,

Laura

2017 / 2014 NEC & Related Books and Study Guides
#89644 10/12/04 12:53 PM
Joined: Jul 2004
Posts: 9,654
Likes: 2
G
Member
The 20a loads in the kitchen and laundry are usually going to be short duration and when you are averaging them into total building demand the affect is less that things that you consider continuous loads.


Greg Fretwell

Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
Potseal
Potseal
Saskatchewan
Posts: 264
Joined: February 2013
Top Posters(30 Days)
timmp 8
Rachel 4
djk 2
Popular Topics(Views)
281,578 Are you busy
215,216 Re: Forum
202,053 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5