Electricity and Data need to get from point A to point B. It is with these devices that this is accomplished.
Here are a couple of notes about electricity that will be useful.
1 – It is dangerous. Don’t do anything that you are not trained and qualified to do.
2 – Cables can only handle a certain amount of current. Theatrically we usually use these three sizes of cable…
- 12 gauge – can handle up to 2400 watts though I recommend limiting it to 2300 watts.
- 14 gauge – can handle up to 1800 watts though I recommend limiting it to 1725 watts.
- 16 gauge – can handle up to 1000 watts though I recommend limiting it to 750 watts.
3 – Cables generally have three wires with a green, a white and a black.
- The green is the ground.
- The white is the neutral.
- The black is the hot. If there are multiple hots then they will also be red and blue.
Do not mix and match these colors.
Edison plugs are the connectors we most commonly use in our homes. This is a picture of a 15 amp edison plug. A 20 amp edison plug will have one of the blades go sideways. A female edison plug can accept both a 15 and 20 amp male connection.
|Stage Pin Plugs|
|Twist Lock Plugs
Twist Lock plugs can also be purchased in a 15 and 20 amp variety. The ground blade will have a tab that usually goes inwards towards the center of the plug. There are some older styles that have that tab going outwards. This is usually referred to as nub in and nub out.
|Feeder Cable Plugs
Feeder cable plugs are for connecting the main source of power to your system. They are only for one “leg” of the power whether it be the hot, neutral, or ground.
Electrical distribution is a more permanent way of distributing circuits in a theatre. It still brings the electricity from point A to point B it is just that point B is a permanent location. That location is generally a place where you almost always want to have some circuits.
Pipe distribution boxes are simply different box configurations that you can mount on your pipe in your theatre.
Wall boxes are just like a floor box but mounted on the wall.