Exposed conductors in rotting EMT conduit.

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rdrnnr260

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I have come across exposed conductors in an underground EMT 1-1/4" conduit. They feed apartments in a condo complex. When I check with a non contact tester or a tic tracer I am not getting a reading although I am almost certain that they are hot. Could the false negative reading be due to the fact that there is water in the conduit. Anyone run into this before. The insulation is THW and they look like #4 AWG.
 
I have come across exposed conductors in an underground EMT 1-1/4" conduit. They feed apartments in a condo complex. When I check with a non contact tester or a tic tracer I am not getting a reading although I am almost certain that they are hot. Could the false negative reading be due to the fact that there is water in the conduit. Anyone run into this before. The insulation is THW and they look like #4 AWG.

You really need to check those with a meter to make sure they are dead,Do not trust the tic tracer.

Welcome to the forum....:thumbsup:
 
Conductors close together in a wet location will almost never show "energized" when you are using a non-contact voltage tester. Even if the location is not wet, those types of testers will sometimes not detect an energized circuit when the condutors are close together.
 
Yes they should be rigid or PVC but they ran the EMT back in 1971 when the place was built. I doubt it was legal then either but that's what is there. No wonder it's all corroded and rotted. Pay me now or pay me later. Thanks to Don for the info about the water in the conduit.
 
Yes they should be rigid or PVC but they ran the EMT back in 1971 when the place was built. I doubt it was legal then either but that's what is there. No wonder it's all corroded and rotted. Pay me now or pay me later. Thanks to Don for the info about the water in the conduit.
 
The code does not say you can't install EMT underground.
The following is from the UL White Book Information for Electrical Metallic Tubing (FJMX).
Galvanized steel electrical metallic tubing installed in concrete on grade or above generally requires no supplementary corrosion protection. Galvanized steel electrical metallic tubing in concrete slab below grade level may require supplementary corrosion protection.
In most cases, it will fail in a short time.
 
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