BJohnson
Well Known Member
The drawings show a firewall pass through for the main bus power, starter contactor, battery contactor, etc that is comprised of two plastic snap bushings pressed (an SB625-8 and SB500-6) together in a hole in the firewall. I installed this per plans, but contemplating failure modes raises a question.
Has anyone experienced a failure of this design? It seems likely that the thin firewall will eventually saw through the plastic bushings and then into the wire insulation.
I followed the aeroelectric schematic Z11 which has a 6 awg wire leading from the battery contactor to the main bus un-protected. A direct short of the 6 awg wire to the firewall, with no circuit protection, would make things pretty exciting.
I am aware of the various other pass throughs available, but my question is about the durability of the "per plans" version.
Has anyone experienced a failure of this design? It seems likely that the thin firewall will eventually saw through the plastic bushings and then into the wire insulation.
I followed the aeroelectric schematic Z11 which has a 6 awg wire leading from the battery contactor to the main bus un-protected. A direct short of the 6 awg wire to the firewall, with no circuit protection, would make things pretty exciting.
I am aware of the various other pass throughs available, but my question is about the durability of the "per plans" version.