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Grounding a parking lot light

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w.fune

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Location
mccook, NE
run a ground wire because....

run a ground wire because....

working around grain elevators and industrial locations i have seen many pipes broken or damaged. In a underground installation future diggging or even thermal expansion can seperate conduits. When the conduit seperates you loose all grounding past that point. The circuit many still work; making it worse since nobody know there is a problem
horsegoer said:
So when using EMT or RGS why ever run a ground wire? If that spec calls for a separate ground?
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