Term
| Name 5 common elements found in all automated lighting systems. |
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Definition
•Rigging System
•Power Distribution
•Data Distribution
•Control System
•Luminaires or Fixtures |
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Term
| What is a normal size for light duty truss? |
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Definition
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Term
| What is a normal size for medium duty truss? |
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Definition
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Term
| What is a normal size for heavy-duty truss? |
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Definition
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Term
| What is the standard type of pipe that is used as a batten in the United States? |
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Definition
| 1.5” schedule 40 black iron pipe |
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Term
| What is the job of a power distribution system? |
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Definition
| To safely and reliably distribute power to each of the electric loads in the system while providing protection from overloading and short circuits. |
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Term
| What are the colors codes for the following cable in the USA 3phase system? |
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Definition
GROUND = Green
NEUTRAL = White
PHASE 1 = Black
PHASE 2 = Red
PHASE 3 = Blue |
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Term
| What are the colors codes for the following cable in the New European 3phase system? |
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Definition
GROUND = Green w/ Yellow Stripe
NEUTRAL = Blue
PHASE 1 = Brown
PHASE 2 = Black
PHASE 3 = Grey |
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Term
| What does a distribution panel do? |
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Definition
| It serves two purposes: It divides the incoming power into branch circuits and provides the overcurrent protection equipment (circuit breakers) for them. |
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Term
| What can make a thermal circuit breaker trip sooner than it should? |
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Definition
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Term
| How does a magnetic circuit breaker measure current flow? |
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Definition
| By sensing the magnetic around a conductor in direct proportion to the current. |
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Term
| What is the maximum current interrupt rating for a breaker that is used in conjunction with 14 AWG circuits? |
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Definition
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Term
| What is the maximum current interrupt rating for a breaker that is used in conjunction with 12 AWG circuits? |
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Definition
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Term
| What is the maximum current interrupt rating for a breaker that is used in conjunction with 10 AWG circuits? |
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Definition
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Term
| What is the definition of a branch circuit? |
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Definition
| A branch circuit is a set of wires (hot, neutral, and ground or earth in a single phase system) that carries power from the last overcurrent protection device to one or more electrical loads. |
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Term
| What 2 things (dealing with the cable) can cause the voltage to drop in a branch circuit? |
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Definition
| When branch circuits are run a long way and/or when the wire gauge is small. |
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Term
| What is the name of the set of codes and standards governing the installation and operation of electrical equipment in the United States? |
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Definition
| The National Electrical Code, NFPA 70 (NEC) |
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Term
| When was this set of codes (NFPA 70) first written? |
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Definition
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Term
| What is different between data grade cables and microphone cables? |
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Definition
Data cables are low-impedance
Microphone cables are high-impedance |
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Term
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Definition
| Architecture for Control Networks |
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Term
| What are the two main functions of the electrical system in an automated light? |
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Definition
| To supply the power for the lamp circuit and to supply low-voltage power to the electronics systems and electromechanical systems. |
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Term
| What is the primary function of the electronics system? |
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Definition
| To take the control signal input, translate it to computer code, and execute commands in the form of motor movements or, in the case of electronic dimming, lamp voltage. |
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Term
| What does the electromechanical system do? |
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Definition
| Converts electrical energy into movement. |
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Term
| What is the mechanical system made up of? |
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Definition
| It is made of moving parts such as parts such as gears, belts, bearings, axles, and the chassis. |
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Term
| Name seven things that can be found in the optical system. |
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Definition
•Reflectors
•Lamps
•UV and I/R filters
•Color Media
•Gobos
•Lenses
•Effects |
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