I'm starting to wire the layout, and I want to be able to run conventional with two transformers. As such, I have created a switchboard. My question is this: on the base of the switchboard, can I install bus bars for all the wire drops, using the OSB table underneath (i.e., is the OSB going to be insulating enough). Also, I want to make sure that it's not a fire hazard (18V AC between the bus bars). Picture for reference.
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