Are there any restrictions regarding AC and DC wiring being in the same raceway together? In my experience I have found that the DC wiring will pick up an induced voltage (even if the insulation meets requirements) and may cause equipment damage. I.e., 24VDC controls picking up an induced voltage of 50+ VAC...
Induction of AC on DC circuits
- Thread starter gaston13
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- Bremerton, Washington
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- Master Electrician
First of all,you can't share a DC circuit in a raceway with AC unless the DC is not an Art 725 Class 2 or 3 circuit.
If this is a PLC type circuit those are Class 2, but can be reclassifed to Class 1 but that requires a chapter 3 wiring method.
Concerns, yes.
However if you use shielded twisted pair the induction will be minimal. Bond the shield at one end and use a 100% foil coverage, such as Belden 1032.
If this is a PLC type circuit those are Class 2, but can be reclassifed to Class 1 but that requires a chapter 3 wiring method.
Concerns, yes.
However if you use shielded twisted pair the induction will be minimal. Bond the shield at one end and use a 100% foil coverage, such as Belden 1032.
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