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Old 12-04-2014, 04:47 PM
johnpost is offline
Join Date: Jul 2009
Posts: 12,056
it is right about needing close grounding on some fixtures. where there is a reflector it has to be grounded well, but it is also removable to access the wiring and may have gotten a poor ground through movement or corrosion. if these fixtures don't have a reflector, but still need a nearby grounded metal, the ground could have failed to the fixture.