Question about wire for mk5500

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SoTaShine
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Question about wire for mk5500

Post by SoTaShine »

In the process of building a mk5500 and I have access to a lot of this wire. its 10awg my question is would this be suitable running a small length with no jacketing(the rubber that would surround the wires not the jacketing on the wire itself) to my element? or is this just a really bad idea? Ill attach a picture of the label.
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Cardinalbags
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Re: Question about wire for mk5500

Post by Cardinalbags »

Each individual wire is rated for 600v which means the insulation on each individual wire is good for that voltage. Strip only what is needed to obtain a solid termination and ensure the inner insulation is not cut from cutting open the outer jacket.

Best practice would have you terminating the wires inside a metal box where the box is grounded back to the supply so that if a wire comes loose or grounds out through the insulation (due to a break in the insulation etc) it snaps the breaker out before it can arc and start a fire. As well the metal box would also provide for the LB to attach which would permit you to tighten against the cable which helps prevent strain on the cable at the termination point and help avoid tearing out the wire from the connection, etc.

Having said that, depending on the detail for how your element is fitted, fitting a metal box may not be possible. Try and use proper connectors/cable terminations and make sure there is no tension on the leads to the boiler.

Ive done exactly as you have suggested and my leads are exposed a bit, but I will be installing a metal box for a cleaner and safer finished product.
RonH3154
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Re: Question about wire for mk5500

Post by RonH3154 »

This wire is industrial quality and good for 600 volts, 30 amps. Typically it would be installed in ridgid conduit or flexible conduit. As stated by Cardinalbags be sure to make properly protected splices/connections and be careful of stress at those connections. Also don't forget the ground/earth conductor.
SoTaShine
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Re: Question about wire for mk5500

Post by SoTaShine »

Thanks for the replies, Im pretty open to the connection to the keg as of now, waiting on my buddy to weld a npt/npsl nut to my keg, which he assured me would not warp when welding everything will be grounded tested my 220 plug yesterday to make sure I had a good ground. definitely will get a box and ground that as well.
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