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IAEI Magazine | Author: Larry Watkins
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Larry Watkins

Larry Watkins is a senior engineer for Distributor Products at Alcan Cable. He has been involved in the wire and cable industry from manufacturing to technical support and standards committee work. He has been an associate member of IAEI since 1993.


MC Cable Installations

Type Metal Clad Cable (MC) is being installed in virtually every type of building under construction today including stadiums, schools, multi-family housing, hotels, commercial retail and office, industrial plants and warehouses along with many other facilities. This article addresses the interlocked armor Type MC cable with conductors No. 8 CU and No. 6 AL and larger for 600 volt installations. Section 334-3 of the National Electrical Code (NEC) (ANSI/NFPA 70 Standard) identifies uses permitted to include services, feeders, branch circuits, wet locations, and certain hazardous locations. Let’s review the installation and inspection aspects of Type MC cable for feeders and services.