I have been given a very difficult situation that I am trying to solve, and unfortunately am not having much luck online.
There was an accident at a local high school 2 years ago (a falling fixture booted off a catwalk) which prompted the school board to tour all the schools in the district investigating all venues. When they visited the school I work with, I was told by the tradesmen that cabling from dimmers to lights was illegal! I was floored to hear this since all of our cabling is either 12/3 properly rated cables and connectors, or 12gauge Soca multi-cable that runs between our dimmers backstage and our electrics around the theatre. The students know that they are forbidden to use typical garden (orange) extension cables. And the school has been very good about providing necessary funds to make sure any cabling we use is properly rated.
I have not been able to find anything in writing discussing cabling standards in live theatre (Canada would be most useful information but anything in writing anywhere would help my cause). I know for a fact that shows on Broadway (lets take "Cats" for an example) ran for almost 18 years (according to IBDB). I seriously doubt (I actually know for a fact) that the circuiting was installed and probably stayed there for the full 18 years, unless something wore out and needed replacement.
Can anyone provide me written proof that properly rated cabling or multi-cables from dimmer packs to fixtures is acceptable?
Thanks so much for your help.