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Subparagraphs 1 and 3 of the first paragraph of Section 86-4.O1A, "Optical Units," of the Standard Specifications are <br /> amended to read: <br /> • Lenses,reflectors, reflector assemblies, lamp receptacles, lamps, wiring and light distribution shall conform to <br /> the requirements in ITE Publication: ST-017B. <br /> • All reflectors shall conform to the requirements in ITE Publication: ST-017B except that reflectors shall be <br /> made of silvered glass or of specular aluminum with an anodic coating. Reflector ring holder shall be made of <br /> cast aluminum. <br /> The first paragraph of Section 864.0113, "Signal Sections,"of the Standard Specifications is amended to read: <br /> • Each signal section housing shall be either die-cast or permanent mold-cast aluminum conforming to ITE <br /> Publication: ST-017B or,when specified in the special provisions,shall be structural plastic. <br /> The first paragraph of Section 86-4.01 C, "Electrical Components,"of the Standard Specifications is amended to read: <br /> • Lamp receptacles and wiring shall conform to ITE Publication: ST-01713. The metal portion of the medium base <br /> lamp socket shall be brass,copper or phosphor bronze. <br /> The first paragraph of Section 864.01 D, "Visors,"of the Standard Specifications is amended to read: <br /> • Each signal section shall be provided with a removable visor conforming to the requirements in ITE Publication: <br /> ST-017B. Visors are classified, on the basis of lens enclosure, as full circle,tunnel(bottom open),or cap(bottom and lower <br /> sides open). Unless otherwise specified,visors shall be the tunnel type. <br /> The first paragraph of Section 86-4.02A, "Physical and Mechanical Requirements," of the Standard Specifications is <br /> amended to read: <br /> • Light emitting diode signal modules shall be designed as retrofit replacements for optical units of standard traffic <br /> signal sections and shall not require special tools for installation. Light emitting diode signal modules shall fit into existing <br /> traffic signal section housings built in conformance with the requirements in the Institute of Transportation Engineers (ITE) <br /> publication ST-01713, "Vehicle Traffic Control Signal Heads(VTCSH)"without modification to the housing. <br /> The seventh paragraph of Section 86-4.02A, "Physical and Mechanical Requirements," of the Standard Specifications is <br /> amended to read: <br /> • Light emitting diode signal modules shall be protected against dust and moisture intrusion in conformance with the <br /> requirements in NEMA Standard 250 for Type 4 enclosures to protect the internal components. <br /> The first paragraph of Section 864.02B, "Photometric Requirements,"of the Standard Specifications is amended to read: <br /> • The minimum initial luminous intensity values for light emitting diode signal modules shall conform to the <br /> requirements in Section 11.04 of the Institute of Transportation Engineers (ITE) publication ST-01713, "Vehicle Traffic <br /> Control Signal Heads(VTCSH)"at 25°C. <br /> The third paragraph of Section 86-4.02C, "Electrical,"of the Standard Specifications is amended to read: <br /> • The light emitting diode signal module on-board circuitry shall include voltage surge protection to withstand <br /> high-repetition noise transients as specified in Section 2.1.6 of NEMA Standard TS2. <br /> Subparagraph 7 of the fourth paragraph of Section 86-4.021)(1), "Design Qualification Testing," of the Standard <br /> Specifications is amended to read: <br /> • Moisture resistance testing shall be performed on light emitting diode signal modules in conformance with-the r <br /> requirements in NEMA Standard 250 for Type 4 enclosures. Evidence of internal moisture after testing shall be <br /> cause for rejection.. <br /> Contract No. 10-OM7104 <br /> 67 <br />