Re: Ideas on securing wires inside mast?
I've got the same problem. Jon's method above sounds good. I've got a long length of rebar that could be used in place of iron pipe.
One thing I question is how do you satisfy the AYBC requirement of supporting the wire every 18 inches (to satisfy you would need a wire tie support every 18 inches coming down the mast, otherwise all of wires weight is supported from one point at the top). With wire in the mast seems nearly impossible. And how do you adequately support 40 feet or more of wire from the mast head? My wire just swing around and rub inside the mast, surprised they still work and have not broken loose from the top of the mast.