NEC Code Basics - July 2017

Switch and Receptacle Installation Basics

These are commonly connected devices, but are you sure you know the installation requirements?

Switches controlling line-to-neutral loads must have a neutral conductor installed at a switch serving bathrooms, hallways, stairways, or rooms suitable for human habitation or occupancy, as defined in the applicable building code [404.2(C)] (Fig. 1).

When wiring for 3-way and 4-way switches, only the ungrounded conductors are switched [404.2(A)]. The neutral conductor must not be switched. New with the 2017 NEC: Where 3-way and 4-way switches are visible in a room, o

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TAGS: Code Basics
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