24vdc run with 120 vac
24vdc run with 120 vac
(OP)
I was wondering if it would be okay to run some 24Vdc power wiring in the same conduit as 120Vac wires.
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RE: 24vdc run with 120 vac
Others, like your insurance carrier, may disagree though.
RE: 24vdc run with 120 vac
RE: 24vdc run with 120 vac
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TW Controls - http://www.twcontrols.com
RE: 24vdc run with 120 vac
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: 24vdc run with 120 vac
http://download.yousendit.com/7A4639BF673D255C
David Baird
Sr Controls Designer
EET degree.
Journeyman Electrician.
RE: 24vdc run with 120 vac
RE: 24vdc run with 120 vac
You say 24VDC POWER, but don't tell us much about the 120V. POWER may well not be particularly suceptible to noise, and the 120VAC won't notice the 24VDC. I've done it, and don't recall any issues coming up.
Insulation rating, as dpc mentions, is a basic requirement.
Please let us all know how this works out for you! and don't forget FAQ731-376
RE: 24vdc run with 120 vac
Please use SHIELDED 300-volt-rated cable for your 24 VDC power. Then you will have no problems when you run the shielded cable with the 120 votl wires. Shielded cable gives about the same level of noise protection as runnning the wires in a separate conduit. What's the big deal?
RE: 24vdc run with 120 vac
Whether the parallel run of 120V and 24V is a factor in this specific installation depends on the nature of the load on the 120V circuit and the load on the 24V circuit, and the luck of the draw how the cables lay in the conduit. In the latter case the answer is usually 'in the most inopportune manner imaginable'. At least, that's how it is in my world.
We don't use a lot of conduit in the UK so the chances are I'd be using two separate SWA cables if possible - I have gotten away with 120V sharing a multicore with 24V in a breakdown situation but have made a proiper job of it later.
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