company switch

  1. C

    Control/Dimming Understanding NEC / Panelboard Breaker Capacities & Quantities for a Sound Stage

    I’m hoping to learn if there are any rules-of-thumb regarding a permanently-installed breaker panel and the quantity and capacity of the breakers located within it. The space in question is a soundstage for single-camera film/video shoots (within a commercial office building), which under normal...
  2. C

    Control/Dimming Requirement for fusing an onstage switch?

    I am attempting to explain to a licensed electrician why an onstage switch would need to be fused. In our example, there is a 100A 3-phase (4 wire + ground) feed to the stage, which is directly wired from a 100A 3-pole breaker in a separate panel. That panel is in another room. The box they...