SailNet Community - View Single Post - Solar Panel demands
View Single Post
post #6 of Old 02-21-2012
casey1999
Senior Member
 
casey1999's Avatar
 
Join Date: Oct 2010
Location: HI
Posts: 3,550
Thanks: 23
Thanked 53 Times in 51 Posts
Rep Power: 10
 
I have about 160 watts of solar panels on my boat, work great.

One question. Having been going through the boat and upgrading all the boat wiring and adding fuse protection where none existed. One thing I do not understand about solar panels is how you protect yourself against short circuit (and maybe fire) from the panels. Say you panels put out 120 watts at 12 volts (10 amps). Normally, from what I understand, you do not place a fuse between the panel and the charge controller. Even if you did place a fuse it would do no good(if the fuse were sized below 10 amps it would blow, if above 10 amps it would never blow even on a short circuit). So it seems you could have a short circuit in your wiring between the solar panels and the charge controler that might start a fire.

Or if shorted, do the panels not put out any amps?
casey1999 is offline  
 
 
For the best viewing experience please update your browser to Google Chrome