scope:

This standard describes installation procedures for nonmetallic-sheathed cable (Type NM) and underground feeder and branch-circuit cable (Type UF).

Products and Applications Included

This publication covers the following:

Nonmetallic-sheathed cable with insulation rated 90°C (194°F), listed as Type NM-B.

Underground feeder and branch-circuit cable, Type UF.

Products and Applications Excluded

This publication does not cover the following:

Nonmetallic-sheathed cable with insulation rated 60°C (140°F), listed as NM.

Corrosion-resistant nonmetallic-sheathed cable (Type NMC).

Regulatory and Other Requirements

a) All information in this publication is intended to conform to the National Electrical Code

(ANSI/NFPA 70). Installers should always follow the NEC, applicable state and local codes, manufacturers instructions, and contract documents when installing nonmetallic-sheathed cable systems.

b) Only qualified persons familiar with the installation of nonmetallic-sheathed cable should perform the work described in this publication. It is recommended that all work be performed in accordance with NFPA 70E, Standard for Electrical Safety in the Workplace.

c) General requirements for installing electrical products and systems are described in NECA 1, Standard Practices for Good Workmanship in Electrical Construction (ANSI). Other National Electrical Installation Standards provide additional guidance for installing particular types of electrical products and systems. A complete list of NEIS is provided in Annex A.