Great Topic,
Has anyone used the "Hubbell Spider" or "Leviton The Box"? I found this to be handy when distributing to multiple locations. They have built-in GFCI's. One limitation is they are only single phase. This made it hard to distribute three circuit on one stringer. Our venue was on a parking garage that was total concrete. The generators were located a few levels below the event and the feeders were run up to 4 distribution "Spiders". There was no place to bond. No structural steel. The boxes worked well. After a soaking thunderstorm before the event, GFCI's were popping left and right. Homemade cordsets using 1900 boxes hold more water than you might think. We made our own stringers using 5 conductor #10 and alternating 2 circuits every 50' using Woodhead boxes. I have considered building a 3 phase distro using twist-locks for 3 phase stringers and GFCI breakers. This would give me more capacity per stringer.
Blessings,
Mark
