Conduit ground ?

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Old 04-18-15, 06:08 AM
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Conduit ground ?

Is there a problem with extending ground by connecting to metal conduit (that is grounded via the breaker box) using a conduit ground clamp and wire to a receptacle?
 
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Old 04-18-15, 06:49 AM
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The metal box would be grounded by the conduit. You don't need to connect a wire from the conduit to the receptacle, but from the metal box to the receptacle by using a ground screw installed in the metal box or a ground clip attached to the side of the metal box.
 
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Old 04-20-15, 06:36 AM
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To clarify: I failed to pull a gnd wire when I extended my shop circuit ( metal conduit) to a shed.
Therefore I pulled a green wire to the shed & attached it to the receptacle ground.
I connected this gnd wire to the shop conduit & tested the receptacles in the shed with a known working 3 led tester.
The result NO ground.
I'm baffled, I have checked continuity at each conduit connection where gnd could be lost, but they all ohm out ok.
 
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Old 04-20-15, 06:48 AM
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When you say you ran metal conduit to your shed, I hope you ran Rigid conduit if it is buried in the ground. EMT is not listed for direct burial.
 
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Old 04-20-15, 07:25 AM
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Please post s picture of the ground connection to the conduit.
 
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