Flashcards in Module 4, Lesson 2 Deck (21)
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1
Incandescent means
White, glowing, and luminous with intense heat
2
Incandescents are what
The oldest and least efficient
3
What do incandescents consist of
Metallic filament, glass envelope, and 2 or more base contacts
4
How it incandesecents illuminate
Current enters the base contacts, current then travels through a fine wire to the filament, the resistance to the current causes the filament to glow, and then the current travels from the filament through a fine wire back to the base
5
Lamp glass envelope is called a
Bulb
6
How many lumens of light per watt of power is consumed
10-20
7
Industry wattage ranges from
25-1500
8
Highest wattage in homes
100 watts
9
2 types of bases
Medium screw base and mogul screw base
10
Letter represents
Shape
11
Number represents
Size
12
Bulbs are always measured in
eighths of an inch
13
A, PS, R, and PAR are the most common what
Bulbs
14
Incandescent luminarie characteristics
Many styles for commercial and residential apps, fit into the ceiling flush, have thermal protectors for misuse of insulation and improper lamps, ratings for wet and damp locations, wall-mounted, and own junction boxes
15
Most common fixture
"high-hat" recessed down light fixture
16
Industrial incandescent luminaries
Maintenance free, consists of a reflector and socket, enclosed and gasketed, explosion-proof, and protect from dirt, moisture, and physical shock.
17
Type A lamps are rated for what wattage
15-150
18
Type PS lamps are rated for
150-500
19
Type R (reflector) and type PAR (parabolic aluminized reflector) are commonly called
Floodlights and spotlights
20
4 common reflector styles
Standard dome, shallow dome, deep bowl, and angle
21
