Luminaires shall exhibit a color temperature in the range of 3500K to 4500K per ANSI C78.377 and a minimum Color Rendering Index of 70 as verified by the IESNA LM-79 test. A Surge Protection Device, SPD, shall be included to protect the luminaire from damage and failure from transient voltage and currents. The SPD shall conform to UL 540 1449 and shall be tested in accordance with, and survive, the procedure in ANSI/IEEE C62.41.2 definitions for standard and op tional waveform for location category C- High. Once the surge current has subsided, the SPD shall automatically restore normal operation and reset to a state ready to receive the next surge. Luminaires shall comply with Title 47 CFR Part 15, Class A on unlicensed transmissions in a business, commercial, or industrial environment.
Underpass and post top mounted luminaires shall be protected against salt spray and conform to ASTM B117, 2,000 hrs time horizon. 550 Luminaires shall include vandal shields when installed on an underpass or signs on bridge brackets and when otherwise specified. The vandal shield shall be made of a tough durable plastic, such as Lexan, mounted in a rugged galvanized steel or aluminum frame, and shall withstand severe impact without being damaged or allowing the refractor to be damaged. It shall be fastened securely to the luminaire so it cannot be removed from the outside and shall not interfere with the light distribution pattern. It shall protect the face of the refractor and if ventilation is necessary, the ventilating apertures shall be arranged so that they do not admit a probe of a diameter greater than 1/4 in. 560 Luminaire shall be aimable toward the required direction.
LEDs shall be connected so that the loss of one LED will not result in the loss of the entire luminaire. LED circuitry shall prevent flickering to the unaided eye at the voltage specified on the plans and the range indicated herein. LEDs shall deliver a minimum of 85% of the initial rated lumens after 50,000 hours of operation at 130°F ambient temperature as indicated by LM-80 lumen 570 maintenance test of the light source as calculated by IESNA TM-21, L85 > 50,000 hrs. A passive thermal management system to dissipate the heat generated by operation shall be provided. Fans or other mechanical cooling systems shall not be used.
The thermal management system shall maintain temperatures during the operation of the luminaire to be within the limits established by the Power Driver Lifetime and LM-80 testing. 580 920.01 1159 b. Light Emitting Plasma Luminaires Plasma emitters shall deliver a minimum of 70% of the initial lumens after 50,000 hrs of operation.
against vibration. 590
bolt slipfitter capable of adapting to a 2 in. mounting bracket that is adjustable ±5° for leveling. Luminaires shall be adjustable in the horizontal and vertical directions to meet the specified IESNA light distribution pattern. Luminaire weight shall not exceed 53 lb and its projected area shall not exceed 2.4 sq ft. 600
Sign and underpass luminaires shall be LED and operate on no more than 150W of power. Sign luminaires shall have a shield that blocks the view of the refractor from an approaching motorist. This shall be accomplished by the design of the housing or by a shield fabricated from sheet aluminum, approximately 0.05 in. thick, and of sufficient size to be fastened onto the horizontal edge of the refractor holder with self tapping screws and placed between the refractor and approaching traffic. Aluminum and steel structural members for luminaire supports shall include 610 aluminum conduit, conduit clamps, fittings, and stainless steel screws.
All circuit breaker enclosures shall be NEMA 4/5. 1. Circuit Breakers for Type II Service Point The cabinet and hardware shall be weatherproof and rain tight. The enclosure shall have provisions for padlocking. The fastener and mounting hardware shall be plated brass, stainless steel, or aluminum. The enclosure shall be made of 14 gauge aluminum, or 14 or 16 gauge stainless steel. The circuit breaker operating handles for 620 manual tripping shall be concealed inside the enclosure. Computation of branch circuits shall be based on the National Electrical Code Standard Limitation of loading breakers to 80% of their rated current. Additional details shall be as shown on the plans. 920.01 1160 2. Circuit Breakers fo r Sign and Underpass Circuits Sign and underpass circuit protection shall be provided by two single pole, 240 volt AC, 120 volt for 120/240 volt service, circuit breakers with ampere rating of 200% of the normal load. The circuit breakers shall have provisions for padlocking 630 externally. The circuit breaker operating handles for manual tripping shall be concealed inside the enclosure. The enclosur e shall be made of aluminum or stainless steel. Additional details shall be as shown on the plans.
The enclosure shall be furnished with two single pole, 30 ampere, 480 volt AC circuit breakers with a minimum symmetrical RMS interrupting capacity of 14,000 amperes. The breakers shall be accessible through the pole handhole. The circuit breaker operating handles for manual tripping shall be external to the enclosure. The enclosure shall be made of aluminum or stainless steel. Additional details shall be as 640 shown on the plans.
These breakers shall have the following features:
temperature changes over their operating environment of -40°F to 185°F,
the ON position.
Multiple relay switches with photocell receptacles shall have a two-pole relay for 660 connection to a 120/240 or 240/480 volt, three-wire, single phase, 60 Hz power supply. The relay switch components shall match the service voltage being supplied. The unit shall contain two single pole circuit breakers with a minimum rated capacity to withstand 100% of the rated ampere load. The circuit breakers shall trip at not less than 125% of the rated load capacity. Control circuit arresters for lighting protection and a manual control selector switch shall be included within the unit. The enclosure shall be a cast aluminum weatherproof case, with a hinged cover, having provisions for padlocking and a hanger for pole or wall mounting.
A Type C certification in accordance with 916 shall be provided for the materials in this section unless otherwise specified. 920.01 1161
The junction box shall be polymer concrete , of concrete-gray color, with a cover rating of 20,000 lb. (i) Handholes Handholes shall be in accordance with 922. 17 except the cover shall be with the logo imprint of “LIGHTING”. 680