What Is the Primary Difference Between Nm and Nmc Cable
Type Nm Cable Is Defined as Insulated Conductors Enclosed Within an Overall Nonmetallic Jacket, While Type Nmc Is Insulated Conductors Enclosed Within an...
Type NM cable is defined as insulated conductors enclosed within an overall nonmetallic jacket, while Type NMC is insulated conductors enclosed within an overall corrosion-resistant nonmetallic jacket. The only difference between the two definitions is that NMC is corrosion-resistant and NM cable is not.
What does NM stand for in wire?
“NM” stands for non-metallic, which refers to the flexible, typically PVC sheathing surrounding the cable. “B” indicates a heat rating of 194-degrees Fahrenheit, ensuring that its interior wires can operate at certain levels without overheating. Most common form of indoor residential electrical wiring.
Where can NM not be used?
Type NM cable cannot be run outdoors even if it is run in a raceway because this is considered to be a wet location. Type NM cable cannot be run in any raceway other than using it as a sleeve in accordance with 334.15(B) and 300.15(C) or in accordance with 334.12(A)(1) Exception.
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