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Related Flashcards
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Cards In This Set
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When do you need a lighted exit sign?
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Every exit door
Every change of direction in corridor
Stairways, Stair Enclosures or Ramps
Room with more than 2 exits
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Do you put emergency lighting on a switch?
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No
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How many light fixtues can you have per switch?
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10 Max.
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You do NOT need an exit sign in the following cases:
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Room or building w/ Occupancy Load of 50 or less
Residential Occupancy
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How far apart should you place incandescent downlights?
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About every 4 feet
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Which is brighter, compact flourescents or incandescents?
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Compact Flourescents
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On an 8' high ceiling, what is the spread of an incandescent can light?
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About 6'
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Definition of Volt
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An electrical unit that measures potential and force ...the potential difference between 2 points on a conducting wire carrying an amp
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Definition of Amp
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The basic unit of electric current adopted under the Systeme International d'Unites; "a typical household circuit carries 15 to 50 amps"
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Definition of Watt
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Unit used to measure power, equal to one joule per second. In electricity, a watt is equal to current (in amperes) multiplied by voltage (in volts).
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Definition of Circuit
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A closed path through which an electric current flows or may flow.
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HID
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High Intensity Discharge Light
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What kind of lighting fixtures are the least expensive to buy initially?
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Fixtures that use incandescent lighting
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What are the 2 basic types of light sources?
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Gaseous Discharge
Incandescent
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What type of lighting is generally the most cost effective type of lighting for lower ceilings?
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Flourescent
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