high-speed medical radiographic films when they are exposed at
distance of 600 mm 24 inches from light source.
d.
Voice passage, light, and radiation baffle.
e.
Installation accessories, including rough-in frame, brackets, and
trim.
f.
Lead lining, 2 mm 1/16 inch minimum thickness, providing
protection of complete assembly, equal to or greater than
protection of wall within which it is located.
g.
Power source of [120] [208] [220] [_____] volts, [50] [60] Hz,
single-phase, operating from primary electric power.
2.2.3
Illuminator, Radiographic Film, Recess Mounted
Explosion-proof fluorescent fixture, with each viewing panel independently
switched. Include:
a.
Electrical characteristics:
[120] [220] [_____] volts, [50] [60]
Hz, single-phase.
b.
Illumination: Maximum panel brightness not less than 1540
candelas per square meter 450 foot lamberts located within a 150 mm
6 inch square at center of viewing panel. Minimum panel
brightness not less than 65 percent of maximum panel brightness.
Do not include areas of viewing panel within 38 mm 1 1/2 inches of
edges in brightness measurements.
d.
Trim for recessed installation.
e.
Film-holding device: Continuous-ball or strip-spring type
extending across top of each viewing panel. All parts
corrosion-resistant steel or plastic.
2.2.3.1
Illuminator, 1 Panel Recessed
Single unit approximately 500 mm high by 375 mm long by 125 mm deep 20
inches high by 15 inches long by 5 inches deep.
2.2.3.2
Illuminator, 2 Panel Recessed
Double unit approximately 500 mm high by 750 mm long by 125 mm deep 20
inches high by 30 inches long by 5 inches deep.
2.2.3.3
Illuminator, 8 Panel Recessed
Eight-panel, (four in tandem, double deck), four over four, approximately
1000 mm high by 1500 mm wide by 125 mm deep 40 inches high by 60 inches
wide by 5 inches deep.
2.2.3.4
Illuminator, 4 Panel Recessed
Four-panel, approximately 700 mm high by 1750 mm wide by 150 mm deep 28
inches high by 69 inches wide by 6 inches deep.
SECTION 11475
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