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GSXR600

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Does anyone know if the code allows you can run initiating and signaling circuits in the same conduit.
 
Yes

Yes

Although some jurisdictions will require 70.7 volt speaker circuits to be in their own conduits, typically initiating and indicating circuits are okay to use the same conduit. 3/4" minimum.
 
MichaelGP3 said:
Although some jurisdictions will require 70.7 volt speaker circuits to be in their own conduits, typically initiating and indicating circuits are okay to use the same conduit. 3/4" minimum.
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There is no 3/4" minimum conduit size requirement in any NFPA code. You must be citing a local code, no?
 
peter d said:
There is no 3/4" minimum conduit size requirement in any NFPA code. You must be citing a local code, no?
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but I sure wish there was. :D

I have never heard or read any code's requiring the separation of the 2. But like was said before the 70 volt speaker circuit may be required in certain places. You would need to check you local codes or AHJ.
 
Depends on what you are calling initiating and signaling. A signaling line circuit (SLC or addressable) can sometimes cause problems on other circuits such as speaker circuits if they are too close. Some 70 volt speaker circuits are considered non power limited and required to be separated from the power limited circuits such as pull stations, smoke detectors etc. Normally, power limited and non power limited have to be in different conduits.

Even if code allows you to run circuits in the same conduit or cable, some manufacturers will not support you if you have technical issues when certain circuits are in the same conduit. You should follow the instructions of the manufacturer of the system you are installing today and not install it the way you have always done it on previous jobs or the way another system is always installed.
 
dhalleron said:
Depends on what you are calling initiating and signaling. A signaling line circuit (SLC or addressable) can sometimes cause problems on other circuits such as speaker circuits if they are too close. Some 70 volt speaker circuits are considered non power limited and required to be separated from the power limited circuits such as pull stations, smoke detectors etc. Normally, power limited and non power limited have to be in different conduits.

Even if code allows you to run circuits in the same conduit or cable, some manufacturers will not support you if you have technical issues when certain circuits are in the same conduit. You should follow the instructions of the manufacturer of the system you are installing today and not install it the way you have always done it on previous jobs or the way another system is always installed.
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If you cannot get tech support from a manufacturer because you have certain circuits in the same piece of pipe but its code permissible, I would never use that brand. Having said that I am not encouraging mixing circuits if possible. Sometimes you have to mix IDC, NAC and SLC on an existing system, but never phone, NPLF, etc.

If interference with a SLC is a problem use Silent Knight. you will not have a problem with their SLC giving or receiving with other circuits in the same FACP.

I do agree that 70 volt speakers circuits should be and mostly are classified as non power limited and should be separated as such
 
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