THEA 120 - Lighting and Electricity

Conductor

Any material that allows electric current to pass through it

Ex: water, copper, aluminum, steel, etc.

Insulator

Any material that does not allow electric current to pass through it

Ex: ceramic/porcelain, plastic, rubber, glass, cloth, wood

NEC

Solid wire cable

Stranded wire cable

S, SO, SJ, SJO, SJOOW

Zip cord

Twist lock connector

Three pin connectors

Edison plugs

Dimmer

Two-fer

Patch panel

Drop box

Floor pocket

Fuse

Screws into panel and has metal wire inside which burns out when too much current runs through (“blows”)

Circuit breaker

A switch at the panel which creates an open circuit when to much current runs through the circuit (“trips”)

Dimmer per circuit

Resistance dimmer

Auto-transformer dimmer

SCR (silicon controlled rectifier) dimmer

Analogue

What is DMX?

When is solid wire cable used?

When is stranded wire cable used?

When would you use zip cord?

Identify ground, hot, and neutral terminals in 3 pin connector

Identify ground, hot, and neutral terminals in edison plug

Why do you wrap the wire around the terminal screw in a clockwise direction?

What is a two-fer? A three-fer? A Martingale?

What does a fuse do?

How does a memory system differ from a preset system?

Burn base

Yoke

C-clamp

Pan screw

Yoke bolt

Pipe bolt

Lamp

Lens

Barrel

Shutters

Housing

Connector

3 pin stage connector (aka 2PG connector for 2pin+ground)

Twist-lock (ground in)

Twist-lock (ground out)

Edison plug (grounded)

Edison plug (ungrounded)

Ellipsoidal Reflector Spotlight (ERS)

Ellipsoidal Reflector Floodlight (ERF)

Parabolic Aluminized Reflector (PAR)

Strip light

Cyc light

Far cyc

Source Four

Shakespeare

Fresnel

M

Mini zoom

Scoop

Followspot

Step lens

Fresnel lens

Plano convex lens

Focal length

Augistin Fresnel

BTL-Fresnel

EGE-500 W prefocus ERS

EGG-750 W prefocus ERS

HPL (575W or 750W)- Source Four

FMR- 500W- Mini Zooms

EVR- 500 W Candelabra Screw base-- 3.5 ERS

Mogul (base size)

Medium (base size)

Candelabra base (base size)

Screw base (base type)

Pre-focus (base type)

Bi-pin (base type)

Bi-post (base type)

Gel/color

Rondell

Gel frame

Gobo/template/cookie

Gobo/template holder

Boom

L

Ladder