Tray Cable and Rigid Conduit

[adam garcia]

When running Instrument wire, RTD wire, and THermocouple wire to a local panel, outside in a gas plant, is it necesarry to run Tray Type Cable?
The area is Class I DIV II and may not necessarly run conduit on Skids or Equipment, simply from instruments to a local panel using racks, from there the conduit runs to the control room in conduit racks.

 

[Smart $]

When running Instrument wire, RTD wire, and THermocouple wire to a local panel, outside in a gas plant, is it necesarry to run Tray Type Cable?
The area is Class I DIV II and may not necessarly run conduit on Skids or Equipment, simply from instruments to a local panel using racks, from there the conduit runs to the control room in conduit racks.

You didn't say whether you were actually running the "wire" in cable tray. If run in cable tray, it must be a permitted wiring method. Refer to Article 727 Instrumentation Tray Cable: Type ITC

 

[adam garcia]

No Cable tray will be used.

 

[adam garcia]

Only Rigid Conduit.

 

[Smart $]

No Cable tray will be used.

Only Rigid Conduit.

Well then you don't have to use tray type cable... but must still comply with Class 1 wiring methods.

 

[petersonra]

Well then you don't have to use tray type cable... but must still comply with Class 1 wiring methods.

Are these all class 1 circuits?

 

[Smart $]

Are these all class 1 circuits?

I was referring to hazardous location type Class 1. Perhaps I should have typed it Class I.

 

[petersonra]

I was referring to hazardous location type Class 1. Perhaps I should have typed it Class I.

I missed that in the initial post.

in looking through his later posts the OP says it is all in rigid, so really it does not matter much what he does as far as cabling goes.