"DerbyDad03" wrote in message
...
On Nov 30, 3:33 pm, Waylon wrote:
Can someone tell me if the Canadian electrical code requires an ground
wire to be connected to a light switch, I always connected the ground to
the box, but a fellow electrician just told me they now need to be
screwed onto the switch.

Maybe they changed it to make it more "one size fits all"

Consider metal boxes vs plastic boxes.

Since the switch screws into the metal box with metal screws,
grounding either grounds both. Obviously with a plastic box, the only
way to ground the switch is to attach the wire to the switch.

If they write the code to say that the wire must be attached to the
switch, both situations would be covered without any ambiguity.

Canadian plastic boxes have a metal grounding strap installed to attach the
grounding wire. I have personally not seen on/off switches with ground
screws, but timers, X-10, scene controls and dimmers often need a ground
wire. I think that ground wires "must" be attached to the box first, then
connected with any other ground feedthrough wires and a pigtail (if the
switch doesn't have its own pigtail) to connect to the device exactly like
grounding a receptacle.