Dear List,
I have a question regarding ballast for a 14.4kV distribution transformer.
Last time I set one of these up, I used a 500-foot roll of 12 gauge solid wire as ballast. That worked great.
I no longer have that roll of wire, but I do have a 250-foot roll of 12-gauge stranded two-conductor speaker wire.
My question is this: Can I leave the wire on the roll as it is and connect the two conductors together at the end of the roll, essentially creating a single conductor roll of 500 feet. Or should I unroll all of the wire and separate it into two 250-foot single conductors, connect them together, and then re-roll what would then be a 500-foot single conductor wire.
I ask because I am afraid that if I just leave the wire on the roll and connect the two ends I'll have lots of eddy currents and heating issues when using it as the ballast.
Thanks,Dan K.