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hi youtubers jeff cote here  from pacific yacht systems we've got a  question from steve  steve says i've got a 1978 taiwanese  trawler  here in british columbia and i'm  grateful for your electrical survey  recommendations about three years ago  i've added lots of fuses that are close  to byc recommendations as possible  but i still don't know what condition of  the wire runs are in the hidden  chassis what are the pros and cons of  battery thermal fuses  that's a really good question steve  the challenge with fusing is a lot of us  and certainly a lot of previous owners  and a lot of do-it-yourselves are  thinking that the fuse can be located  everywhere on the circuit they're  thinking it's only the purpose of the  fuse is only  to protect the appliance and you're  right if you're only worried about  fusing for an appliance the fuse could  be anywhere on the circuit  it doesn't have to be at the beginning  it could be right before  the circuit itself and a good point or  analogy to that  is a vhf radio a vhf radio is commonly  going to have a va  fuse connected right to the power lead  to the vhf itself  but we know that we don't only have to  worry about  the appliance we also have to worry  about the whole wiring  and the advantage with battery terminal  fuses  is that they actually fuse the circuit  right at the battery and so now you have  a fuse that is not only meant to protect  the wire but also the appliance so we  use these marine rated battery fuses all  the time  in our solutions and they're safe and  they're great because they  start the fuse at the beginning of the  circuit  and in that way we're protecting both  the wire and we're also protecting the  appliance  so a big fan of marine rated battery  fuses thanks for asking the question  steve  if you've got further questions please  send them our way and thanks for  watching