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#55515 08/31/05 09:20 PM
Joined: Sep 2004
Posts: 174
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bot540 Offline OP
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Is IMC made of steel only, or is aluminum, or both? Me and another journeyman had this argument today.


Jesus may have been a capenter,but God was an electrician.Genesis1:3
#55516 08/31/05 09:52 PM
Joined: May 2005
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Steel with a coating of zinc.

Dave

#55517 09/03/05 03:51 AM
Joined: Jan 2003
Posts: 4,391
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You know the code book can solve many disagreements. [Linked Image]

RMC can be, steel, stainless steel, aluminum, silicon bronze.

Quote
344.2 Definition.
Rigid Metal Conduit (RMC). A threadable raceway of circular cross section designed for the physical protection and routing of conductors and cables and for use as an equipment grounding conductor when installed with its integral or associated coupling and appropriate fittings. RMC is generally made of steel (ferrous) with protective coatings or aluminum (nonferrous). Special use types are silicon bronze and stainless steel.

On the other hand IMC is steel.

Quote
342.2 Definition.
Intermediate Metal Conduit (IMC). A steel threadable raceway of circular cross section designed for the physical protection and routing of conductors and cables and for use as an equipment grounding conductor when installed with its integral or associated coupling and appropriate fittings.

[This message has been edited by iwire (edited 09-03-2005).]


Bob Badger
Construction & Maintenance Electrician
Massachusetts

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