ohms reading between neutral and grounded conduit? - Electrician Talk - Professional Electrical Contractors Forum
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Old 08-13-2017, 04:04 PM   #1
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Default ohms reading between neutral and grounded conduit?

I was quickly trying to find a grounding (well, bonding, I guess) issue on a circuit. During the test, I touched the leads on the neutral bar and on two old threaded conduits connected to the panel (Federal Pioneer). Both readings were about 14 ohms.

Isn't that supposed 0 ohms, or very close to that? That's what I have gotten on other panels I have tested in the past.
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Old 08-13-2017, 04:23 PM   #2
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I was quickly trying to find a grounding (well, bonding, I guess) issue on a circuit. During the test, I touched the leads on the neutral bar and on two old threaded conduits connected to the panel (Federal Pioneer). Both readings were about 14 ohms.

Isn't that supposed 0 ohms, or very close to that? That's what I have gotten on other panels I have tested in the past.
old conduit could have oxidized enough to raise the resistance.
we usually use a screw driver or file to scrape the conduit or can and put one lead on the shiny bare metal
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Old 08-13-2017, 05:34 PM   #3
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old conduit could have oxidized enough to raise the resistance.
Especially if the panel is outdoors and the conduit uses a double lock nut method of bonding.
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