Means of disconnect

[cbenjamin]

Hello all

Yup, I'm the new kid on the block, so bear with me. Well, I think "kid" ran out about 40 years ago, but. . .

Having been out of the electrical field for a few years, I'm looking for an answer without having to buy "The Book." Just call me cheap.

I currently work for a computer control company where we install equipment in commercial and industrial settings. Our system consists of a main controller, plus a panel of periferals for input and control. In the mix we monitor total KW.

To power the watt transducer we supply our panel with a 15 amp 3 phase dedicated circuit. From there we use step-down xformers to get 24v AC for our boards and controller.

My question is simple, by my memory has faded. What section of the code defines the rules for the need of a means of disconnect to be installed in our panel, and what are those rules.

I have it in the back of my head that you have to be in-line-of-site from the breaker to our panel, not to exceed 50 ft.

Your help will be greatly appreciated.

 

[jim sutton]

Re: Means of disconnect

If your going to run pipe and pull wire, you need a code book.

Look at article 645, if the equipment is in an "Information Technology Equipment Room"

[ January 11, 2004, 09:57 PM: Message edited by: jim sutton ]

 

[russ]

Re: Means of disconnect

Article 430 deals with motor circuits and controllers.
Part IX. Disconnecting Means

430.102 Location
(A) Controller.
An individual disconnecting means shall be provided for each controller and shall disconnect the controller. the disconnecting means shall be located in sight from the controller location.

[ January 11, 2004, 10:06 PM: Message edited by: russ ]

 

[cbenjamin]

Re: Means of disconnect

Thanks for the info. This should end the argument that keeps popping up between our contractors who say it should have a disconnect, and those who don't know or care.

Of course, my company wants to leave it out due to cost against my constant objections.

Thanks again