Re: So, what are some warning signs that a stage may be unsafe?
It isn't a color issue, it's a code issue. The NEC states that entertainment power cords in the path of people need to be 'hard service' cords with a 600 volt insulation rating - not the 'junior' (J) version with only a 300 volt rating. Additionally, anything used outside must include a 'W' for water resistant. The 'T' simply means the insulation is Thermoplastic and is stiffer, it has no other implications.
The only code exception, I believe, is cords less than 20 feet, such as adapters, breakouts, breakins, and those sort of things.
So, as a guideline, anyone doing production must have cords without a 'J' and if outdoors must have a 'W' in the cord type.
If someone could quote the code section that explains this, it would be greatly appreciated.
Edit: Every molded power cord I've ever seen has been made with Thermoplastic insulation. Few of these molded cables are lacking the J to be used in entertainment power, and even fewer of these cables have a 'W' in their cord type. Any odd color cables at any concert should be immediate reason to examine the cable more closely and to closely scrutinize the rig to see where other shortcuts were taken. The shortcuts may not even be intentional - how many people on this forum know the NEC by the letter?
Is there a regulatory book like the NEC but pertaining to entertainment rigging?
