120V 400hz & 120V 60hz in the same raceway

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120V 400hz & 120V 60hz in the same raceway

#76110 12/09/00 10:34 PM

Joined: Dec 2000

Posts: 5

OKC

E

Eclavea

OP

Junior Member

I'm wondering what are the regulations and disadvantages besides noise?
Can somebody help me out?

[This message has been edited by Eclavea (edited 12-09-2000).]

[This message has been edited by Eclavea (edited 12-09-2000).]

Eclavea

Work Gear for Electricians and the Trades

Re: 120V 400hz & 120V 60hz in the same raceway

#76111 12/10/00 09:42 AM

Joined: Dec 2000

Posts: 84

Pittsburgh, Pennsysvania. ...

C

cinkerf

Member

NEC Article 300.3(c)(1) seems to permit such an installation. (Frank) cinkerf

Re: 120V 400hz & 120V 60hz in the same raceway

#76112 12/14/00 12:35 AM

Joined: Nov 2000

Posts: 123

Texas

D

doc

Member

it is perfectly legal to run different voltages in the same conduit according to the NEC. Keep in mind that the NEC sets the minium standards.I will run 120 240 volts in same conduit but WILL NOT run 120 /240 with 277/440 you may know you did it but a lot of the unsuspecting do not know it and can be hurt or burn up equipment so if at all possible keep them apart

MAY THE SUN SHINE ON YOUR FACE IN THE MORNING AND YOU AWAKE WITH A SMILE