DSE Wiper wiring, wire 10ga and 30a fuse??

[Josh69]

I know this is a simple question, but I'm curious why DSE supplied their wiper kit with a huge 10ga wire and a 30a fuse if it's only looking for 12v switched power? I don't have anything larger than 14ga readily available under the dash, and my fuse block only has 10 or 20a fuses for the aux outputs. There isn't anything that big under the hood either that is switched.

Am I missing something?

Also, does anyone know about the Power Accessory fuse in the Pontiacs? I have one with a fuse that looks like 30a, and from what I can deduct supplies power to the large 10ga orange wire under the dash that is used for power windows/seats/convert. top, etc. My car had none of those options, and that fuse is not live either constant or switched. There is a spade terminal next to it that says 'Bat'. If my car had power windows, would there be a wire direct from the battery to that terminal, thus supplying power through the fuse and out to the orange connector, relying on a relay for the switched 12v?