Should I FUSE my SOLAR PANELS (and Alternator)? | Ask The Expert with NIGEL CALDER
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- Опубликовано: 18 май 2022
- Solar Panels are Sources of Power. So normally they would need a fuse. However, there is an exception in the standards. Nigel Calder under what conditions you can omit the fuse on the panel end of the conductor. And whether or not you can do the same with your alternator installation.
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I love listening to Nigel talk! He really explains things well. Not sure we need two people talking
The thing is that usually like 90% of the time said solar cable goes through the metal roof. And thats why we fuse it its in the new british waterways regulations (bss) 2018 version so what we do that we put a fuse just after the mppt to protect the cable if it gets damaged by the metal roof via vibration. I hope who needs sees this
Thanks for this comment. Indeed it is important to protect solar cables from chafing to avoid stray currents. However, I am not sure how a fuse between the controller and the panel should help with this. Even if there is a dead short, the current cannot be higher than the maximum rated output of the panel, so a properly rated fuse will not blow. (And luckily, the cable's won't melt either) But I am curious about what the British waterway regulations are saying on the topic, can you share their exact wording? - Jan
You say at the end of this video you should not parallel two smaller cables… and you have a video about that. What video is that I can’t find it.
Do you need to ground them down in water to whit a cable ??
And how deep in water if possible??
Ceep up good work
i have a 130 amp solar pan, max power 18v open circuit vol 22.5 max system vol 1000 wich fuse do i need
Are you sure you have a 130Amp panel (and not 130 Watt)? 130 A would be enormous! I would recommend to check out this article: boathowto.com/electrics/fuses-circuit-breakers-on-boats/ Or, to get a simpler, more in depth understanding, to check out our Boat Electrics 101 course. There we also have a bonus module specifically on solar panels. - Jan
ups you was right 130 w
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@@BoatHowTo That is excellent. May I suggest a small discount for returning students? 🤣
@@torstenhansen4308 This is definitely going to be the case! We are planning to offer a bundle-deal as well as a discount for our Boat Electrics 101 students!
@@BoatHowTo Excellent, looking forward to it.
For everybody who's reading this: The advanced modules are available now! :-)
Can you have two fuses in parallel?
What would you want to achieve with such a setup? I don't see any scenario where this would make sense... -Jan
@@BoatHowTo I forget what I was thinking precisely, probably something about doubling the fuse capacity. Not important really.
@@Ibian666 While this should work in theory, in practice this is likely to cause nuissance blowing: There could be minimal differences in resistance in the connections to the fuses, in which case one of the fuses would get more current. It may then nuissance blow, in which case all the current flows throughthe second one, which will blow as well. So better take a single fuse with the appropriate rating. -Jan