Rev. 13 November 1, 2016
Page | 84a. Ballasts shall be low harmonic (<10%), electronic, sound rated A or better, minimum 0.90 power factor,
minimum 0.85 ballast factor, maximum 1.7 crest factor, operating at >20k Hz, with a written five year
warranty. Ballasts shall be by Advance or Magnatek.
b. Dimming ballasts shall be low harmonic (<10%), electronic, sound rated A or better, minimum power factor
of 0.90 (full on) and 0.80 (low dimmed), minimum 0.85 ballast factor, maximum 1.7 crest factor, operating at
>20k Hz, with a written 5 year warranty. Ballasts shall be capable of dimming the lamps from 100% down to
1- 10% (verify with Owner for each application). Ballasts shall be by Advance or Lutron.
c. Lamps shall be T-4 type, 4100K color temperature, minimum 82 CRI. Only 26 watt quad tube 4-pin lamps
shall be used. Lamps shall be by Osram-Sylvania, General Electric, or Philips.- High Intensity Discharge Ballasts and Lamps
a. Ballasts shall be core and coil type with a written five year warranty. Ballasts shall be by Advance or General
Electric (Magnatek).
b. Lamps shall be by Osram-Sylvania, General Electric, Philips, or Venture. - Energy Controls
a. Occupancy sensors shall be ceiling mounted, dual-technology type in areas over 150 square feet. Utilize wall
mounted type in areas smaller than 150 square feet or for remodel projects where existing light switches can
be replaced.
b. Photo sensors shall be ceiling mounted type. They shall be used to switch on/off standard ballasts, not adjust
dimming ballasts, unless approved by the Owner.
c. Controls shall be compatible with the facility Building Automation System.
Coordinate with the project mechanical engineer since occupancy sensors often also control the VAV boxes,
terminal air boxes, fan coil units, and/or exhaust fans in the space.
d. In large, open areas, utilize a low voltage control system with a timer to over-ride the light switches.
e. Low voltage control wiring for the energy control systems shall be installed in conduit.
f. Where the lighting is connected to the Building Automation System, relays and contactors shall be provided
to switch the light fixtures.
g. Rapid start ballasts shall be used in light fixtures controlled by occupancy sensors. - Construction of Standard Light Fixtures
a. Typical Fluorescent Fixtures (troffers, wraparounds, strips, etc.): In recessed troffers, lenses and louvers shall
be standard size so replacements are readily available.
b. Suspended Linear Direct/Indirect Fluorescent Fixtures: Housings shall be of steel or aluminum construction
with endcaps. Fixtures shall be suspended with adjustable aircraft cable and fed with white coiled cords.
c. Recessed Downlights: Rough- in kits shall have steel bar hangers with steel junction boxes. Reflectors shall
be low i ridescence Alzak type. Incandescent fi xtures s hall be thermally pr otected.
d. Exit Signs: Light source shall be LED only without ba ttery backup unless required by code. Exit signs
shall be Lithonia Lighting model EDGR, brushed aluminum, letter color red. - Installation of Light Fixtures
a. Recessed fixtures in removable ceilings shall be connected to the branch circuit with flexible c onduit and
branch circuit wire from an accessibl e junc tion box. Length shall be a maximum of s ix feet.
b. Recessed fixt ures in non-removable, fire-rated ceilings shall be enclosed in a fire- r ated enclosure. A
fixt ure that is able to remove the heat it produces in this situation mus t be us ed.
c. Where fluorescent fixt ur e housings are connected together, use 90 degree C wire for branc h circuit feed
thr ou gh f ixt ure c hannels.
d. Fixtures recessed in furred ceiling shall be installed so that they can be removed from below the c eiling.
e. Fixt ures installed in plastered or acoustical tile shall not be supported directly on the ceiling material.
Support fixt ur es with metal bar hangers or s trut channels attached to the ceiling support s ystem.