blueh20 wrote:
I assume though if the house battery ever did try to start the vehicle with those fuses in place that the cranking amps would blow both fuses immediately, is this correct????
if so is their anyway to have the house battery start the vehicle while still having some kind of " frame shorting" protection ?
thanks for your input.
Basically, you're right. I believe one or the other 150 amp fuses would blow. You will need bigger fuses to provide starting current.
2/0 wire is rated for 190 amps CONTINUOUS DUTY at 90 degrees centigrade. Fortunately, a starter is not continuous duty, and it can carry larger current for a shorter period of time. The MAXIMUM FUSE for 2/0 wire is 400 amps, so I would put those on each end. See:
http://bdfuses.com/fusesnwires.phpIf you blow the 400 amp fuse when you use it for starting, you will need to run a 3/0 or 4/0 wire in place of the 2/0 in order to run larger fuses.
