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SECTION 26 50 20 – BALLASTS PART 1 - GENERAL 1.01 1.02 DESCRIPTION: A. General provisions and other electrical systems are specified in other Sections of Division 26. B. This Section covers ballasts for fluorescent luminaires, including emergency battery type, and for high intensity discharge luminaires. C. Commissioning is specified in Section 26 00 90, Commissioning. This Section includes responsibilities and obligations in support of the commissioning process specified therein. QUALITY ASSURANCE: A. Conform to the following: 1. International Energy Conservation Code-2003. 2. NFPA 70-2008. PART 2 - PRODUCTS 2.01 BALLASTS: A. B. General: 1. Ballasts shall be designed and UL listed for the electrical characteristics of the circuits to which they are connected and for use with the lamps and luminaires specified herein or indicated on the Drawings. 2. Ballasts shall have the minimum sound rating available for the lamps specified herein or indicated on the Drawings and shall be labeled with that rating. 3. For outdoor luminaires, ballasts mounted remote from luminaires shall have weathertight outdoor cases, and those within luminaires shall be in a weathertight compartment. 4. Ballasts shall operate at nominal voltages of 120 V or 277 V, with an input frequency of 60 Hz. 5. For outdoor use and wherever used outside a heated environment, ballasts shall be capable of lamp-starting at 0°F. 6. High intensity discharge ballasts shall be individually fused. Fluorescent Electronic Type: 1. UL listed, Class P, Type 1, sound rated Class A or better, programmed start type with a minimum 97% power factor. 2. Operate lamps at a frequency of 20 kHz or greater without visible flicker providing full light output. 3. Lamp current crest factor shall be 1.7 or less. 4. AC input total harmonic distortion shall not exceed 20%. 5. Ballasts shall have Category A transient voltage surge suppression in accordance with IEEE C62.41.1-2002 (R2008) and IEEE C62.41.2-2002. 6. Ballast case operating temperature shall not exceed 25C rise over 40C ambient. 7. Minimum starting temperature shall not exceed 50°F for 32 W lamps. 8. Ballast RFI and EMI emissions shall conform to 47 CFR 18-2009. ©MBAJ ARCHITECTURE #1007 / ETB #0905 26 50 20 - 1 Advantage Valley Advanced Technology Center WV-CTCS SECTION 26 50 20 – BALLASTS C. D. 9. Ballasts shall have a 5 year written warranty from date of shipment against mechanical or electrical defects under normal conditions of use, including a ballast replacement labor allowance. 10. Manufacturer: Advance, GE, Osram/Sylvania, or Universal. Fluorescent Electronic Dimming Type: 1. UL listed, Class P, nonPCB, CSA certified, sound rated Class A or better, minimum 90% power factor. 2. Operate lamps at a frequency of 20 kHz or greater without visible flicker. 3. Lamp current crest factor shall be 1.7 or less. 4. AC input total harmonic distortion shall not exceed 20%. 5. Ballast shall have Category A transient voltage surge suppression in accordance with IEEE C62.41.1-2002 (R2008) and IEEE C62.41.2-2002. 6. Ballast case operating temperature shall not exceed 25C rise over 40C ambient. 7. Ballast minimum starting temperature shall not exceed 50°F. 8. Ballast RFI and EMI emissions shall conform to 47 CFR 18-2009. 9. Dimming shall be smooth and continuous without visual flicker from 100% to 5% light output. 10. Ballasts shall provide fully regulated constant lumen output for ±10% line voltage variation. 11. Ballasts shall default to full lumen output with loss of control signal. 12. Ballasts shall provide continuous cathode heating during starting and throughout dimming range. 13. Dimming control devices shall be designed for use with submitted electronic dimming ballast. 14. Fluorescent dimming ballasts shall be compatible (2- or 3-wire systems) with their lighting control systems or dimming control devices, and shall perform at a level comparable to a dimming ballast of the same manufacturer as the lighting control system or dimming control device. Interaction between electronic dimming ballasts and lighting control systems or dimming control devices shall not diminish the average rated life of the lamps, ballasts, or controls. 15. Ballasts shall be capable of striking lamps at any lumen output level without first flashing to full lumen output. 16. Ballasts shall have a 5 year written warranty from date of shipment against mechanical or electrical defects under normal conditions of use, including a ballast replacement labor allowance. 17. Manufacturer: Advance or Lutron. High Intensity Discharge Type: 1. Metal Halide: a. Ballasts shall bear the UL recognized component mark and shall be manufactured in accordance with NEMA C82.4-2002. b. Ballasts shall be high power factor type and shall operate lamps specified herein within the parameters of the most recent editions of applicable ANSI C78. c. Ballasts for lamps of 150 W or less shall be electronic. ©MBAJ ARCHITECTURE #1007 / ETB #0905 26 50 20 - 2 Advantage Valley Advanced Technology Center WV-CTCS SECTION 26 50 20 – BALLASTS d. Ballasts for metal halide lamps of 175 W or more shall be lead-peaked, constant wattage, autotransformer type, unless otherwise indicated on the Drawings. PART 3 - EXECUTION 3.01 INSTALLATION: A. Ballasts installed in luminaires shall be wired and installed by the luminaire manufacturer. B. Provide identical ballasts within each luminaire type. END OF SECTION 26 50 20 ©MBAJ ARCHITECTURE #1007 / ETB #0905 26 50 20 - 3 Advantage Valley Advanced Technology Center WV-CTCS