Low voltage wiring running next to MC cable

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gadfly56

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New Jersey
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Professional Engineer, Fire & Life Safety
No. These cables are commonly installed together in the same bundle, conduit or j box.

If the low voltage is power limited, it must be separated from non-power limited by 2 inches, unless the power limited conductors are rated for the same voltage as the non-power limited conductors.
 

don_resqcapt19

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Location
Illinois
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retired electrician
If the low voltage is power limited, it must be separated from non-power limited by 2 inches, unless the power limited conductors are rated for the same voltage as the non-power limited conductors.
Please cite the code rule that says that. I don't think the rules in 725.136 require any seperation in this case. There may be interference issues, but I don't see a code issue.
 

gadfly56

Senior Member
Location
New Jersey
Occupation
Professional Engineer, Fire & Life Safety
Please cite the code rule that says that. I don't think the rules in 725.136 require any seperation in this case. There may be interference issues, but I don't see a code issue.

Mmmmm, OK, under (I) you're good with MC. I must have been thinking individual conductors bundled together.
 
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