How can you ground a porcelain light fixture with no ground screw and not mounted in a metal box or do you even have to if not what do you do with ground wire?

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Porcelain "keyless" fixtures do not have any designated ground screw, so, assuming there's a supply point "box" already in the ceiling or wall where the light is to be fixed, if there's more than one ground wire in the box, just bond all the ground wires together. "Bond" means "twist them together" or - and this is the best practice - use a simple electrical wiring connector to fix them together securely. Then make sure the ground wires won't be pressed hard against the coloured plastic insulation of any other wires in the supply point box when the light fixture is screwed down. In practice you just need to check they will stay nice and loose after you have shoved the ground wires back into the supply point box. IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOB

If you do this work yourself, always turn off the power at the breaker box/fuse panel BEFORE you attempt to do any work AND always use a meter or voltage indicator to insure the circuit is, in fact, de-energized.
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What to do with ground wire in wall when wiring metal light fixture without ground wire into plastic outlet box with ground wire Basically wall has 3 wires fixture has 2 and no place to ground to.?

Don't worry about it some fixtures have no ground terminals. just shove the groung wire to the back of the box. Correction, if the fixture is metal and it shorts out, the met

Does a light fixture have to be grounded to both the box and the mounting strap?

Simple question, simple answer: yes. Wiring Codes or Regulations do not like a plain mechanical connection (mounting strap to box) when use of a proper wire-to-wire connection

The metal junction boxes that we are installing receptacles in have no ground screw just holes in the back for mounting and knockouts How do you properly ground j boxes?

Make your own ground screw. Use a #8 x 1/2"or #10 x 1/2" sheet metal pan head screw and screw it into one of the holes in the back of the box. In the back of the box you might

What to do with no ground in wall but ground wire in fixture?

Very often the ground wire in the fixture is ignored, or just connected to the box, if there isn't a conductor to connect to. This, however, is a code violation as any fixture

Can you connect the ground wire from a light fixture to anthing in the metal box that does not have a ground coming from it?

I always connect the ground wire to the box. However, if there is no real ground wire running back to the panel it really does you no good. The NEC requires that you rewire th

Where does the grounding wire from a fixture get grounded to if there is no wire ground wire in the box?

The simple answer is, it doesn't. This is not a serious problem, if you ensure that the fixture is wired properly. Make sure the line conductor (black wire) is attached to

Is is ok if the lighting fixture ground wire is wrapped around the bottom of the chain and the ground wire from the light box is connected to the ground screw on the mounting crossbar?

If you are referring to a porcelain or plastic ceiling lightfixture most do not have a place to connect the ground wire. Youcannot ground these type fixtures. Just connect the