Is It Necessary To Ground Dimmer Switches?
January 9, 2006
Q: I have to install dimmer switches in my home. The switchboxes are plastic and nonmetallic faceplates will be provided for the dimmer switches. Are these switches required to be grounded even though nonmetallic faceplates are installed?
A: Yes, all dimmer switches must be grounded, and they must provide a means for grounding metal faceplates, whether or not a metal faceplate is installed. (See 404.9(B))
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