The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!

Featured:
   

2017 NEC and Related
2017 NEC
Now Available!

   
Recent Posts
Webmaster > Admin
by Admin
31 minutes 10 seconds ago
failed home inspection.
by HotLine1
Today at 01:41 PM
Safety at heights?
by Trumpy
Today at 05:25 AM
Old Bath Fan
by gfretwell
Today at 01:38 AM
Search Function
by Webmaster
Yesterday at 11:13 PM
New in the Gallery:
Desk-mounted "power-board"
Top Posters (30 Days)
Admin 31
HotLine1 21
Ruben Rocha 16
Trumpy 13
gfretwell 13
Who's Online
2 registered (Admin, Ruben Rocha), 0 Guests and 198 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#90431 - 11/21/04 08:00 AM Control of variable speed drive.
Sparky_1 Offline
Member

Registered: 11/20/04
Posts: 14
Most variable speed drive I have seen use a shielded cable, low voltage ac or dc to control a variable speed drive remotely. Is it possible to use THHN and pull it in with line voltage 277 & 110 to control a variable speed drive remotely? Or is this a code problem?

Thanks

edited to remove excess spaces and improve readability

[This message has been edited by resqcapt19 (edited 11-21-2004).]

Top
2017 / 2014 NEC & Related Books and Study Guides
#90432 - 11/21/04 01:22 PM Re: Control of variable speed drive.
resqcapt19 Offline
Member

Registered: 11/10/00
Posts: 2209
Loc: IL
If you are asking about the speed control circuit, it is likely an Article 725 Class II circuit and is not permitted in the same raceway or cable with the power conductors.
Don
_________________________
Don(resqcapt19)

Top
#90433 - 11/21/04 04:25 PM Re: Control of variable speed drive.
Sparky_1 Offline
Member

Registered: 11/20/04
Posts: 14
Looks like I will be running some conduit for that control circuit then.
Thanks Don for the quick reply.

Top


ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals