Re: System Tech Toolkit Item Preferences
Nice link Andy, thanks. That's excatly the kind of stuff we deal with at the day gig. And nice job on Duck's Echo gear. 
I think that explains why at the gig they only use Cat 3 meters. There are only a handful of 600v panels, all of them driving huge automation machinery. The rest is 120/208 vac wye. We rely in four things in terms of electrical safety. OSHA, NEC, UL and Clark County fire and building codes. The UL comes in because of the references in OSHA. For example not being able to plug power strips into power strips or appliances into power strips. Since the construction deaths on the Strip and the deadly fall in the small showroom on property, OSHA has been up our ass harder than a fist in a German porn video.
LX handles all the electricity in the theater, similar to Broadway. Except for audio no one else can even operate a breaker. In quantity of circuits we're the second largest user in the theater, though in terms of consumption we're down the list to rigging, automation and LX. Apparently all of our panels are considered arc flash hazards. To conform to the rule I need eye PPE, hard hat, our nice Bulwark arc flash lab coat, Cat 4 gloves and OSHA approved safety shoes to operate a breaker. The reason I bring this up is that if our guys deem a Cat 3 meter is OK, they have a good reason for allowing it.
