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HTI+ Exam Cram™ 2 (Exams HTO-101, HTO-102) by Max Main

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Device Connectivity

Lighting systems are connected with several types of wire and cable. The choices are dependent on the type of environment in which the wiring is to be installed. Building codes and electrical codes also govern the types of wire and cable that can be used in home lighting systems. In this section, you will become acquainted with all the names, ratings, and locations for the various wire types.

Nonmetallic Cable

Nonmetallic (NM) cable is the most widely used cable for indoor wiring. Romex is a brand name for a type of plastic insulated wire that is often called nonmetallic sheath; however, the formal electrical codename is NM cable. This type of wire is suitable for stud walls, on the sides of joists, and places that are not ...

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