Today I did some more firewall-forward wiring. For all the "big" wires, I'm using double-wall heatshrink tubing over the crimp terminals. This stuff is like normal heatshrink, plus an extra layer of hot-melt glue inside. It provides a lot of extra mechanical stability, which I like.
I ran a 10 gauge wire from the always-hot side of the master contactor to the battery bus fuse block:
A short jumper wire connects the battery to the hot side of the E-bus relay. Note the use of all-metal hardware… no nylon nuts forward of the firewall.
Some more short little jumpers connect the switched side of the E-bus relay to the two midi fuseholders, shown here with fuses installed.
At the bottom of the firewall, I installed the ANL fuses and finished connecting everything together with copper bus bars. I ended up removing the rubber terminal boots I had on here before, as they were pretty unwieldy (as in hard to scrunch out of the way while tightening the mounting hardware).
I decided to wait on mounting the big fuseblocks inside the cockpit until I get my radio stack installed, so I can figure out where to run the big wires without having them interfere with the radio trays.