Conduit for 110VAC wires - SailNet Community

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  #1  
Old 04-29-2010
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Conduit for 110VAC wires

Is it required to use conduit for 110VAC wireing? If not, is it really necessary?
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On recreational boats?, No, not specifically. From ABYC:

In AC circuits, all current carrying conductors and the grounding conductor shall be run together in the same cable, bundle or raceway.

When AC and DC conductors are run together, the AC conductors shall be sheathed, bundled, or otherwise kept separate from the DC conductors

Eric
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I would use cable loom to protect it and separate it from the DC conductors as ABYC requires, but separate conduit isn't required. Also recommend attaching the cable loom to the wiring using COLORED wire ties to clearly differentiate it from the DC wiring.
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ac wiring

in the same vein (hope this isn't considered a highjack) ... I just bought a new battery charger. It has the 3 wires for AC hook-up coming from a samll compartment. If I compare this to what I do for home wiring, I would put a strain relief on the entrance to the compartment and run the sheathed supply cable through the strain relief. HOWEVER, the compartment is not large enough to accomodate the crimp connectors.

The old battery charger had screw posts for connecting the input AC.

It doesn't seem right to me to just run the 3 AC wires from the charger through the built-in strain relief and then just use exposed heat-shrink crimp connectors to hook to the AC cable.

Any Suggestions??
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Duplex or Triplex jacketed wire, usually a white PVC jacket over a two wire DC or three wire AC, meets the ABYC "sheathed" standards for bundling AC/DC. Individual single conductor non-jacketed, wires run together do not. I have asked for clarification on this definition because "sheathed" is a broad term..

Conduit is nice but not feasible on many boats especially when retro-fitting and wire loom is also not often feasible..

Duplex & triplex UL 1426 marine wire..
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Last edited by Maine Sail; 04-29-2010 at 07:54 AM.
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BTW, on boats with AC and DC systems, using YELLOW for the DC ground wiring is a really good idea. Makes it very difficult to mistake a DC ground for an AC hot wire and vice versa.
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Thanks everyone! I did buy triplex marine grade wire for the AC, from SD's favorite wire vendor actually. And I am replacing the DC wiring with "safety" cable that is red and yellow. No black for 12VDC. This project should actually reduce the amount of electrical cable on the boat substantially.

I asked because running conduit is not doable, considering the path the wires need to take.
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you should be good to go then.

Quote:
Originally Posted by jarcher View Post
Thanks everyone! I did buy triplex marine grade wire for the AC, from SD's favorite wire vendor actually. And I am replacing the DC wiring with "safety" cable that is red and yellow. No black for 12VDC. This project should actually reduce the amount of electrical cable on the boat substantially.

I asked because running conduit is not doable, considering the path the wires need to take.
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You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

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