About the only differences between using duplex vs primary are aesthetics, protection and heat rejection.
Duplex will be better protected from chafe and damage. However, Once you calculate the recommended wire size for primary wire, increase it one size for duplex wire because it will run hotter in the sheath. I routinely strip a single wire out of duplex when I need it. Dennis C. Sent from my iPhone > On Mar 23, 2014, at 2:07 PM, Joel Aronson <joel.aron...@gmail.com> wrote: > > Blue Sea has a circuit wizard app tohelp size wires. > >> On Sunday, March 23, 2014, Rich Knowles <r...@sailpower.ca> wrote: >> When our boats were built, that was the accepted wiring practice. Fuses were >> in our houses along with left over knob and tube wiring. Thank goodness >> those days are gone. >> >> Rich >> >>> On Mar 23, 2014, at 15:34, "dwight" <dwight...@gmail.com> wrote: >>> >>> OK Rich, so why are the electrical system components on my boat almost >>> exclusively supplied with 2 individual wires…I am quite certain the boat >>> came from the factory that way as very few circuits have as yet to be >>> rewired…hell I still got fuses…a sign of the times maybe or better duplex >>> wire nowadays…seems to me that manufactures might go the less expensive >>> route, especially if it were equally good so why don’t I have duplex wires? >>> >>> >>> >>> From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Rich >>> Knowles >>> Sent: March 23, 2014 3:14 PM >>> To: cnc-list@cnc-list.com >>> Subject: Re: Stus-List Wiring >>> >>> >>> >>> No matter what the application, the size/gauge of wire is a function of >>> distance and current draw. >>> >>> >>> >>> Our very own web site, thank you Stu, has all the info you need to >>> determine wire size. Remember distance is the return journey, not just one >>> way. See: >>> >>> >>> >>> http://www.cncphotoalbum.com/doityourself/wiring/wiring.htm >>> >>> Rich >>> >>> >>>> On Mar 23, 2014, at 14:36, Chuck S <cscheaf...@comcast.net> wrote: >>>> David, >>>> >>>> Each application may require a different kind of wire. The Monitor wire >>>> is probably small current flow, 16 gauge or smaller like lampcord. The >>>> solar panel probably requires heavier wire, # 4 or larger like jumper >>>> cables? I'd follow the manufacturer's recs and buy that type, a little >>>> longer than estimated. >>>> > > > -- > Joel > 301 541 8551 > _______________________________________________ > This List is provided by the C&C Photo Album > http://www.cncphotoalbum.com > CnC-List@cnc-list.com
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