Electrical Routing, and the Deck

Today we worked on the conduit that will carry the wiring between the battery (tongue) box and the cavity in the front of the cab where all the connections will be made, and the conduit that will carry both 120v and 12v distribution from the front to the rear.

Refer back to the previous post to see the connection between the battery box and the trailer body.  Sean made some washers to help flatten the gaskets against the aluminum, in particular the diamond plate of the battery box.  We permanently affixed the connection at the trailer's front edge and installed an ell rather than the sweep shown previously.  

Next we ran a conduit along the starboard side from a point just behind the galley partition to the front, then laterally to the same general area as the tongue box conduit.  This pipe will carry some 3/8" "sub-ducting" or corrugated plastic tubing, within which we will run either the 120v or the 12v wires back to the galley partition.

In the view above you see the longitudinal pipe terminating in a wye - a pluming term for a y-shaped part.  A "street" 45 turns the run to the vertical.  This penetration will be just behind the galley partition.  Three sub-ducts will be installed - one for AC, one for DC, and one spare.  The open end of the wye will permit convenient access as required, and will accommodate a feed from the trailer rear for a clearance light circuit.

This view shows the head end of the trailer and the two turns to the vertical that will penetrate up into the interior wiring cavity.  Again, note that for the battery box connection we have switched to a standard ell from the previously shown sweep.  The sweep has been deployed on the aftward run .

This view shows the front two platform panels with holes fit into them for the penetrations.

Tomorrow we will pre-drill through the plywood then screw it to the structure, completing the platform.