ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Recent Posts
VFD MotorFeeders
by ghost307. 10/18/17 02:39 PM
What do you do?
by gfretwell. 10/17/17 01:08 AM
Good ol' copper pipe in the fuse holder trick
by HotLine1. 10/16/17 07:16 PM
Generator Cable Sizing
by HotLine1. 10/16/17 07:13 PM
Another generator question
by HotLine1. 10/16/17 07:02 PM
New in the Gallery:
Gallery Test
Popular Topics(Views)
241,374 Are you busy
177,329 Re: Forum
168,952 Need opinion
Who's Online Now
0 registered members (), 59 guests, and 12 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#98455 - 12/14/04 02:28 PM NEC deletes all references to a Design E motor!  
Joe Tedesco  Offline
Member
Joined: Oct 2000
Posts: 2,749
Boston, Massachusetts USA
The 2005 NEC has finally deleted all references to a Design E motor.

If I buy a high efficiency motor required by the model energy codes, (ASHRAE 90.1) what design series will I expect to get?


Joe Tedesco, NEC Consultant

2017 / 2014 NEC & Related Books and Study Guides

#98456 - 12/14/04 02:40 PM Re: NEC deletes all references to a Design E motor!  
resqcapt19  Offline
Member
Joined: Nov 2000
Posts: 2,148
IL
Joe,
The Design E motor was deleted from the NEC because they never existed. They were planned but none were ever made.
Don


Don(resqcapt19)

#98457 - 12/14/04 03:04 PM Re: NEC deletes all references to a Design E motor!  
Joe Tedesco  Offline
Member
Joined: Oct 2000
Posts: 2,749
Boston, Massachusetts USA
Don

Thanks. I was aware of that. Are any energy efficient motors available?


Joe Tedesco, NEC Consultant

#98458 - 12/14/04 10:30 PM Re: NEC deletes all references to a Design E motor!  
resqcapt19  Offline
Member
Joined: Nov 2000
Posts: 2,148
IL
I believe all of the manufacturer's have "premium" efficiency motors that meet the energy standards. I think that the normal motor is about 90 to 92% efficient and the "premiums" can be about 95%. It doesn't sound like much, but over the life of the motor it can make a big difference in energy costs. Of the total cost of a motor over its life, about 97% is the energy cost to operate the motor.
Don


Don(resqcapt19)


Member Spotlight
Theelectrikid
Theelectrikid
Levittown, PA
Posts: 810
Joined: April 2004
Show All Member Profiles 
Featured:

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

 

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.013s Queries: 14 (0.003s) Memory: 0.7595 MB (Peak: 0.8895 MB) Zlib enabled. Server Time: 2017-10-18 22:13:26 UTC