using voltage detector with bx

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  #1  
Old 12-06-05, 08:34 AM
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using voltage detector with bx

Can you detect voltage through bx cable, whether it's steel or aluminum? If so, what is an affordable tool to do the job?
Thanks,
 
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Old 12-07-05, 09:04 AM
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Originally Posted by stevejags
Can you detect voltage through bx cable, whether it's steel or aluminum? If so, what is an affordable tool to do the job?
Thanks,
I have a Fluke VoltAlert penlight-style and it does NOT work thru steel or aluminum BX. You could try disconnecting the ground and neutral and see if that works, but I don't know the physics of the technique. Sorry no answer on the second question.
 
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Old 12-07-05, 12:56 PM
ollie
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If the BX is wired correctly and in metal boxes you should read voltage between the black and the metal box or BX cover. If you don't have voltage the BX is NOT wired correctly and there is no ground path. A neon tester will tell you if the line is hot but a voltmeter or wiggy will tell the amount of voltage is on the line.
Ollie
 
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