120v Break Buzzer Circuit

[deltaoveride]

Should the 120v circuit conductors of an employee break buzzer in an industrial plant be installed in conduit.Our existing circuit for break buzzers is just simply # 18-2 cable ran through the perlings in the cieling.Is this type of circuit classified as remote signaling as in article 725 nec. Thanks,for any input.

 

[templdl]

Re: 120v Break Buzzer Circuit

Cord and plug connected???
Otherwise permanently connected then I assume your question to be stated is that it should be run in conduit similar to what you would do with a 120v control circuit using most likely #14ga wire with suitable protection which I believe would be the correct way.

 

[deltaoveride]

Re: 120v Break Buzzer Circuit

Thank you for your input. I was leaning towards the idea of running the wire in conduit. We are adding some buzzers to an existing circuit which is not ran in conduit.

 

[a.wayne3@verizon.net]

Re: 120v Break Buzzer Circuit

120 v 18/2 cable assy open to damage wow.I`ve seen worse in all these years.Once encountered a home wired in zip cord stapled to the top of the base board.There was so much paint on it I almost missed it.This was in a high line condo in lower N.Y.C.The owner had been there 30 years then and that was well in 75.We were there to hang a giant crystal chandalier.Hung it and got out

 

[a.wayne3@verizon.net]

Re: 120v Break Buzzer Circuit

120 v 18/2 cable assy open to damage wow.I`ve seen worse in all these years.Once encountered a home wired in zip cord stapled to the top of the base board.There was so much paint on it I almost missed it.This was in a high line condo in lower N.Y.C.The owner had been there 30 years then and that was well in 75.We were there to hang a giant crystal chandalier.Hung it and got out

 

[tom baker]

Re: 120v Break Buzzer Circuit

It sounds like this is an Art 725 Class 1 non power limited remote control circuit. It has to be wired with a chapter 3 wiring method. zip cord is a art 400 wiring method and the following applies from the 2002 NEC
400.8 Uses Not Permitted
Unless specifically permitted in 400.7, flexible cords and cables shall not be used for the following:
(1) As a substitute for the fixed wiring of a structure
(2) Where run through holes in walls, structural ceilings, suspended ceilings, dropped ceilings, or floors
(3) Where run through doorways, windows, or similar openings
(4) Where attached to building surfaces