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Control of variable speed drive. #90431
11/21/04 11:00 AM
11/21/04 11:00 AM
S
Sparky_1  Offline OP
Member
Joined: Nov 2004
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).]

2017 / 2014 NEC & Related Books and Study Guides
Re: Control of variable speed drive. #90432
11/21/04 04:22 PM
11/21/04 04:22 PM
R
resqcapt19  Offline
Member
Joined: Nov 2000
Posts: 2,148
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)
Re: Control of variable speed drive. #90433
11/21/04 07:25 PM
11/21/04 07:25 PM
S
Sparky_1  Offline OP
Member
Joined: Nov 2004
Posts: 14
Looks like I will be running some conduit for that control circuit then.
Thanks Don for the quick reply.


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