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hi youtubers  jeff cote here with another session of  ask pys  so we've got a question from a local  boater coming from port alberni  on vancouver island and  it's actually at the end of a sound  called barkley sound  it's sort of almost to this side  of the island i.e on the east side of  the island but it's actually  an amazing place love it boated their  lots one of my favorite places  epic barkley sound by the way is a  wonderful wonderful place on earth  if you haven't heard about it definitely  worth checking out the pictures  it's breathtaking this is what brought  me here actually to british columbia was  actually the sounds on  west coast of vancouver island that's  why i'm here doing what i'm doing right  now talking about boating is actually  those places  so this boater from port alberni asked  jeff i've been watching your videos and  wondering where do i put a battery fuse  block on a battery  if i've installed already an inline fuse  for my inverter do i need a class  t fuse for my inverter  great question actually so first of all  let's remember right and i started  always hashing this out  is that there's different fuses for  different purposes  we also have to remember that class d  fuses are not ignition proof  so if you have a gasoline engine you  cannot put  a class d fuse in that energy room and  so what i'll do  in those situations we'll install a a l  fuse  an a l fuse is this fuse right here  that's an a l fuse and we'll install  that near the battery  and then we'll have the inverter be  powered  outside of the engine room because you  can't install an inverter in a gasoline  engine room  and then near the inverter we're going  to install a class d fuse  and the reason is one fuse is for the  wire and then  the other fuse which is this fuse right  here class d  fuse that fuse is for the inverter  so yes it's possible to have one fuse  for the whole circuit right meaning you  start with a class d and it fuses not  only the wire but the appliance  but if you start with an anl probably  because you're trying to be ignition  protected within the engine room  then the fuse near the inverter should  definitely be a class  t and it should not and or cannot be  mounted  because it is not ignition protected in  the engine room  so good question and it's important to  sometimes remember that you fuse you can  fuse both a wire  and an appliance with different fuses  for different purposes  so that's a great question and thanks  for asking rob  thank you for watching this pys video if  you've got further questions  ask them down below or go on our website  to fill one of the forms  also support to keep this youtube  channel  ad free by donating on paypal or  purchasing some merchandise  on our store don't forget to subscribe  and thanks for watching