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hi  jeff cote here with pacific yacht  systems i've got an  excellent question here i just removed a  14 gauge ground wire from my boat  it was spliced multiple times when i  peeled the insulation  and good on you for being curious back  it was  charred burning from the inside out how  did this happen  how would i know oh my god  i love this yeah this is incredible  because you're seeing that things  sometimes are not  obvious when you overload a wire  and we're running too much amperage  through that cable  and that could be um simply because um  you know maybe the appliance is larger  than was the intent to use for that wire  what you'll notice is that the a lot of  i guess situations where there's not a  circuit breaker or the fuse is not  properly rated  a wire will actually be doing more than  it was intended to do  and when that happens the amperage that  is exceeding the rated amperage of that  cable  is actually going to cause the  insulation  to melt you'll actually see this and  i've seen this where the terminations  where the connections are happening  are actually you'll see like actually  like yellowing  tarnishing of the insulation the jacket  of the cable  and you're right as you peel that  insulation you're actually seeing it's  melted and charred underneath so when  that happens that's an indication that  the wire was actually running  too much amperage for what it can happen  now here's another sort of curve ball in  this  every time we insert a new termination  we butt splice a wire if it's not done  perfectly  it's going to bring in resistance that  resistance  is going to actually make the rated  amperage of the cable become  lower and it's going to cause more  resistance and more resistance causes  heat  so that's why in electric electrical  systems  perfection is everything right you were  striving for that  level of perfection so if you've got a  wire that is showing size of  burning or it looks like it's melting  that's the size of the wires running too  much amperage or that the butt  connectors that are  in that circuit are causing a voltage  drop and causes a resistance  on that wire so look for it on our boats  and if you see it you got to replace it  so if 16 was happening with this  i'd probably replace it with a much  larger gauge wire  last point bonus round if if i had  given a choice and i could run a gauge  16 wire 14 wire i'm always going to run  14.  given a choice between a 12 and a 10  always 10.  especially because the butt connectors  or the ring connectors are sized for 10  and 12  or 14 and 16. if you're going to buy a  spool of wire or you're going to buy  wire  go from don't ever get 16 do 14 if  you're going to choose between 12 and 10  do 10 go always bigger more  is better for wire sizes so that this  situation doesn't happen again  but that was an excellent question  thanks for watching this video if you've  got further questions that we didn't  answer  please ask them below or go on our  website and fill up one of the forms  and we'll get a chance to do so support  us to keep this channel  ad free by donating via paypal or  buying one of these lovely hats the  links are below and lastly if you  haven't subscribed to our channel  please do so that way you'll get the  regular contents and in closing  thanks for watching  you  English (auto-generated)  AllBoatsSalesRelatedFrom Pacific Yacht SystemsRecently uploaded