[Rav]

I'm replacing a broken porcelain lampholder that has no integrated outlet with one that has a built-in grounded outlet. Currently, the incoming supply wire has the ground wire connected to the ground screw on the metal junction box. With the new fixture I need to ground both the box and the fixture. I've attached two pictures to illustrate (these aren't pics of my actual setup, they're just for illustration -- my box is octagonal and is metal).

Is it acceptable for the ground wire to loop around the junction box ground screw (as seen in the picture), then continue on and attach to the fixture ground screw? Or does the fixture need to have a separate ground wire attached to a second ground screw on the box? Thanks.

 

[joed]

It's pretty straight forward. Connect the three wires hanging out of the box to their respective screws on the lamp holder.
The way the ground is now is fine, at least in Canada it is.

 

[Rav]

It's pretty straight forward. Connect the three wires hanging out of the box to their respective screws on the lamp holder.
The way the ground is now is fine, at least in Canada it is.

So the metal junction box doesn't need to be specifically grounded? I should have mentioned that the box is accessible (can be touched) because it's just mounted to a joist in our unfinished basement.

 

[joed]

The box in the picture is grounded. Just take the three wires as they are now and connect to the fixture.

 

[Rav]

The box in the picture is grounded. Just take the three wires as they are now and connect to the fixture.

Thanks. I'll take that to mean leave the ground wire looped around the box ground screw as it is, and also connect it to the ground screw on the lamp holder.

 

[brric]

So the metal junction box doesn't need to be specifically grounded? I should have mentioned that the box is accessible (can be touched) because it's just mounted to a joist in our unfinished basement.

Receptacles in unfinished basements must be GFCI protected.