Design and Specification Guidelines - Gaston County Schools

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Design and Specification Guidelines Gaston County Schools Updated: March 6, 2012 Gastonia, NC 28054 reflector, one piece white opal acrylic diffuser. Multi-lamp ballasts. 80% min. efficiency. Nominal 78 watts per 3 lamps. (i) Example fixture: Day-Brite, Arioso Acrylic (2) PENDANT: (a) Pendant Direct/Indirect Baffled, Lamps 2-28W T8 fluorescent - Fixture efficiency shall be 80% minimum. Nominal 52 watts per 2 lamps. (i) Example fixture: Cooper Lighting, Corelite Stellar 9” suspended (b) Pendant Direct/Indirect Three Lamp, Lamps 3-28w T8 fluorescent, 2 lamps up/1 lamp down. Semi–specular lowirredescent parabolic cross baffles, minimum 1 3/4” deep and 3” on center, Lamp shield for center lamp. Multi-lamp ballasts. 84% min. efficiency. Nominal 78 watts per 3 lamps. (i) Example fixture: Cooper Lighting, Corelite Class A Perf/DI (c) Pendant Indirect – Perforated Sides, 2-28W T8 fluorescent, 85% indirect component with perforated sides. Wire for separate row switching, multi-lamp ballasts. 78% min. fixture efficiency Nominal 52 watts per 2 lamps. (i) Example fixture: Cooper Lighting, Corelite Class A Perf (3) SURFACE MOUNTED: (a) Surface Mounted Baffled/Wide Distribution, Lamps 2- 28W T8 fluorescent – Fixture efficiency shall be 64% minimum. Nominal 52 watts per 2 lamps. (i) Example fixture: Cooper Lighting, Corelite Stellar 9” surface Full Direct 6. Recessed (Can lights) a) 26 Watt, 4-pin, compact fluorescent lamp b) Brands (1) Juno Lighting (2) Capri Lighting (3) Lithonia 7. Classroom Diffusers – Provide low-glare indirect/direct pendants for ceilings 9.5ft or more with bottom of fixture at no less than 8ft. For ceiling heights of 8ft. or less, use recessed parabolic with minimum three (3”) deep louvers (to reduce computer screen glare) or surface mounted fixtures. 8. Classroom switching – Provide separate switch on light or row of lights closest to whiteboard. The remaining classroom fixtures shall incorporate bi -level or multi-level switching (minimum 2 switches) which will manually switch lighting levels down 30%-50%. Separate row switching shall be accomplished in a uniform pattern throughout space; i.e. alternate rows with one (or two) lamps in each fixture in the row on separate switch. 9. Discuss use of occupancy sensors, infrared, motion sensors for purpose of energy conservation – classrooms, classroom corridor entrance, restrooms; if sensors used, set timer to turn lights off after 15 minutes unoccupied *=Preferred Brand; Bid Alternate Required Page 32 of 38 Pages
Design and Specification Guidelines Gaston County Schools Updated: March 6, 2012 Gastonia, NC 28054 10. Discuss use of motion sensors tied in to security system for illumination during alarms 11. For gyms and multipurpose rooms (high ceilings), use only tubular fluorescent lamps. T-5 HO (High Output) or T-8 tubes on ballasts with ballast factor higher than 1, in specifically designed fixtures capable to withstand ball impact 12. No master/slave lights or Sport Lite, Inc. BXL5-B55-BXPF 13. T-5 HO a) Ballast Brands (1) Advance (2) GE (3) Universal b) Bulb Brands (1) GE (2) Phillips (3) Sylvania 14. Consider use of BAS 15. Consider day lighting - Coordination of “Day-lighting design”… with “North/South-to-East/West” optimized building orientation and “room-purpose positioning”, so as to avoid… a) “redundancy” in “free natural lighting” and “energy consumption lighting” (i.e., lighted atriums), b) excessive “night lighting pollution” beyond necessary safety/security needs, and c) negating natural daylighting with “high-positioned” windows requiring inaccessible (therefore always closed) blinds to avoid glare for LCD presentations. E. Exterior Lighting 1. Pole Mounted a) 1500 watt or less Metal Halide b) Typical 250 W reflected down or 400 W flood maximum c) Poles mounted on raised concrete base d) Minimum 30 inch raised concrete base in parking area e) Minimum 12 inch raised concrete base in non-parking area 2. Wall Packs a) 250 to 400 Watt Metal Halide b) Option: CFL dual 80 W – Bulb units 3. Surface Mount (i.e. under canopy, awning – not area lighting) a) Lamp: 2 Lamp, 26 Watt, Compact Fluorescent b) Manufacturers (1) Lithonia (2) RAB Lighting (3) Daybrite 4. Consider using LED or induction-fluorescent fixtures for exterior lighting 5. General Exterior Brands a) Lithonia b) General Electric c) Hubbell *=Preferred Brand; Bid Alternate Required Page 33 of 38 Pages
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