I was in the marine electrical business for some years and about 95% of the time we used duplex wire. The extra layer of insulation certainly adds to safety instead of being less safe.
The original wiring job on my 1973 35 was - barely - adequate for fresh water use in 1973 and about 90% of it has long since dissolved into black copper dust and been replaced. Joe Della Barba j...@dellabarba.com <mailto:j...@dellabarba.com> Coquina From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of dwight Sent: Sunday, March 23, 2014 1:14 PM To: cnc-list@cnc-list.com Subject: Re: Stus-List Wiring I am not a marine electrician expert but I would suggest that 2 wires are safer that duplex wire albeit more expensive.fires and fuses.probably the marine electrical experts will explain why 2 wires are used to supply power almost exclusively on our sail boats _____ From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of David Knecht Sent: March 23, 2014 2:01 PM To: CnC CnC discussion list Subject: Stus-List Wiring I have to run some new wire for a solar panel and the tank monitor. I was at West Marine yesterday looking at wire and I had the option of duplex wire or single strand wire. The duplex was significantly cheaper per foot since it included both wires instead of buying each color separately. But I notice that nearly all of the existing wiring on the boat is single strand. Is there any reason not to buy a spool of duplex and just split the enclosing shield for the few times I need only one wire? Dave David Knecht Aries 1990 C&C 34+ New London, CT
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