When control for multiple locations is required:
a. A 4-way switch is used
b. The system must be an engineered design, according to the Canadian Electrical Code
c. A local building permit is required.
d. A combination of 3-way switches and 4-way switches are used
e. Three or more two-way switches are used
Answer: D
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Power Engineering Chapter 110
- An advantage of low voltage switching is
- When designing a lighting system which of the following should be considered?
- A luminaire is a
- One of the main types of illumination is:
- Direct lighting systems:
- Ambient lighting can be improved by using two types of lighting:
- The type of luminaire used in industrial warehouses and storage areas is the:
- Occupancy sensors:
- Most dimmer switches sold today:
- In a "direct" lighting systems all or most of the luminous intensity is:
- In large buildings approximately what percentage of the electrical load is lighting?
- Occupancy sensors typically use _________ for activation.
- The NFPA Life Safety Code requires that emergency lighting be provided for means of exit in: