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SAMSON OCEANFRONT PARK <br />CITY OF SUNNY ISLES <br />TECHNICAL SPECIFICATIONS <br />INTERIOR LIGHTING 16511 - 4 <br />5. Open-circuit operation that will not reduce average life. <br />6. Auxiliary, Instant-on, Quartz System: Automatically switches quartz lamp on when fix- <br />ture is initially energized and when momentary power outages occur. Automatically <br />turns quartz lamp off when high-intensity-discharge lamp reaches approximately 60 per- <br />cent light output. <br />B. Encapsulation: Manufacturer's standard epoxy-encapsulated model designed to minimize audi- <br />ble fixture noise. <br />2.5 <br />A. General Requirements: Comply with UL 924 and the following: <br />EXIT SIGNS <br />1. Sign Colors and Lettering Size: Comply with authorities having jurisdiction. <br />B. Internally Lighted Signs: As follows: <br />1. Lamps for AC Operation: Fluorescent, two for each fixture, 20,000 hours rated lamp life <br />or light-emitting diodes, 70,000 hours minimum rated lamp life as indicated on the elec- <br />trical drawings. <br />C. Self-Powered Exit Signs (Battery Type): Integral automatic charger in a self-contained power <br />pack. <br />1. Battery: Sealed, maintenance-free, nickel-cadmium type with special warranty. <br />2. Charger: Fully automatic, solid-state type with sealed transfer relay. <br />3. Operation: Relay automatically energizes lamp from unit when circuit voltage drops to <br />80 percent of nominal or below. When normal voltage is restored, relay disconnects <br />lamps, and battery is automatically recharged and floated on charger. <br />2.6 <br />A. General Requirements: Self-contained units. Comply with UL 924. Units include the <br />following features: <br /> LIGHTING UNITS <br />1. Battery: Sealed, maintenance-free, lead-acid type with minimum 10-year nominal life <br />and special warranty. <br />2. Charger: Fully automatic, solid-state type with sealed transfer relay. <br />3. Operation: Relay automatically turns lamp on when supply circuit voltage drops to 80 <br />percent of nominal voltage or below. Lamp automatically disconnects from battery when <br />voltage approaches deep-discharge level. When normal voltage is restored, relay discon- <br />nects lamps, and battery is automatically recharged and floated on charger. <br />4. Wire Guard: Where indicated, heavy-chrome-plated wire guard arranged to protect lamp <br />heads or fixtures. <br />5. Integral Time-Delay Relay: Arranged to hold unit on for fixed interval after restoring <br />power after an outage. Provide where specifically indicated on the electrical drawings. <br />2.7 EMERGENCY FLUORESCENT POWER SUPPLY UNIT