ballasts and T8 lamps is strongly encouraged as a
means of meeting energy conversation goals for the
building. Although there are no national standards
for electronic ballasts, technical requirements are
covered in Section 16402 INTERIOR DISTRIBUTION
SYSTEM. Electronic ballasts are the most efficient
fluorescent ballasts, eliminate visual flicker and
are quiet. When used, the electrical design must
consider the harmonics and electromagnetic energy
generated by these ballasts. Specific areas which
should not have electronic ballasts are medical
electronic equipment areas and areas equipped with
infrared remote control or security devices. It is
important to inform Users of the benefits and risks
of electronic ballasts and to involve them in the
decision regarding their use.
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Luminaires shall be the fluorescent type and shall have prismatic lenses,
baffles, or reflector systems configured to minimize glare by shielding the
lamp from the view of a seated user. Task lights for each workstation
shall provide a minimum of [810] [650] lx [75] [60] foot candles of light
(horizontally measured), without veiling reflections, on the work surface
directly below and a maximum of 500 mm 20 inches from the fixture. All
diffusers, grilles or other coverings shall be easily removable to permit
cleaning and relamping. Fixtures shall be provided with energy efficient
ballasts and lamps as indicated. If the type is not identified on the
plans, F32T8 lamps in 1220 mm 4 foot units with electronic ballasts shall
be used. Each luminaire shall have an easily accessible on-off switch and
one rapid-start ballast. A variable intensity control is acceptable if the
low setting is equivalent to "off" with zero energy consumption. Multiple
switching is also acceptable. Ganged fixtures or shared ballasts shall not
be used. Lamps and ballasts shall conform to the requirements of Section
16402 INTERIOR DISTRIBUTION SYSTEM.
2.9.8.2
Wiring
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NOTE: If the facility will be under the
jurisdiction of a city code, verify requirements.
Some locations require hard wired connections.
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Each fixture shall have a 1830 mm 6 foot minimum, factory installed, heavy
duty electrical cordset with a grounded plug. Direct or hard wire
connections are not acceptable. Unless otherwise indicated, cords shall be
concealed. Cord concealment shall be built-in within panels [and spine
walls] or shall utilize field installed, manufacturer approved accessories.
Cords may be extended through dedicated channels located at any point
within panels [and spine walls] or may be placed in vertical slots or in
the space between panels [and spine walls] if held in place by retainers
and concealed by a cover plate. Vertical wire managers shall be
prefinished and cut to size and shall extend from the task light level down
to the top of the work surface below the task light. Each manager shall be
attached to a panel vertical edge or connector strip without damage to the
surfaces.
SECTION 12705
Page 26
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