1、MIL-L-27575 62 m 7777906 OI063I5 I W t PPP-B-636 Box, Shipping, Fiberboard QQ-P-416 P 1 at ing, Cadmium (Electrodeposited) t ZZ-R-765 Rubber , Si 1 icone $ MI LI TARY MI L-P- 1 16 Preservation, Methods of 1. c MILITARY SPECIFICATION I INCH-POUND J MIL-L-29575 (AS ) 31 May 1989 -A- - LIGHT, WAVE-OFF,
2、 FLASHING, CAPACITANCE-DISCHARGE This specification is approved for use within the Naval Air Systems Command, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE flashing lig -+ t used for wave-off systems for shore based airfields.
3、 I 1.1 SCO e. This specification covers a type of capacitance-discharge 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications and standards. The following specifications, standards and handbooks form a Dart of the document to the extent sDecified herein. Unless otherwise specified,
4、the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplements thereto, cited in the solicitation. SPECIFICATIONS I FEDERAL PPP-B-601 Boxes, Wood, Cleated-Plywood Beneficial comments (recommendations, additions,
5、 deletions) and any pertinent data which may be of use in improving this document should be addressed to: Systems Engineering and Standardization Department (Code 531, Naval Air Engineering Center, Lakehurst, NJ 08733-5100, by using the self-addressed Standardization Document Improvement Proposal (D
6、D Form 1426) appearing at the end of this document or by letter. THIS DOCUMENT CONTAINS 2 distribution is unlimited. / -. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- -_ MIL-L-27575 62 m 9799906 OLOb3Lb 3 m MIL-L-Z9575(AS) SPECIFICATIONS ( contin
7、ued 1 MILITARY ( continued) MIL-C-7989 MIL-C-85 14 MIL-A-8625 DOD-P-15328 MIL-C-22750 MIL-P-23377 MI L-C-25050 STAN DARDS FEDERAL FED- STD- 5 95 MILITARY MIL-STD-129 MIL-STD-130 MIL-STD-202 MI L - STD- 2 76 MIL-STD-810 MIL-STD-889 MIL-STD-970 MS17814 Covers, Light Transmitting, for Aeronautical Ligh
8、ts Coating Compound, Metal Pretreatment, Resin Acid Anodic Coatings, for Aluminum and Aluminum Alloys Primer (Wash) Pretreatment (Formula No. 117 for Metals) Coating, Epoxy Polyamide Primer Coating, Epoxy Polyamide, Chemical and Solvent Resistant Colors, Aeronautical Lights and Lighting Equip- ment,
9、 General Requirements for Colors Marking for Shipment and Storage Identification Marking of U. S. Military Property Test Methods for Electronic and Electrical Component Parts Impregnation of Porous, Nonferrous Metal Castings Environmental Test Methods Dissimilar Metals Specifications and Standards,
10、Order of Precedence for the Selection of Frangible Coupling (Unless otherwise indicated, copies of federal and military specifications, standards and handbooks are available from the Naval Publications and Forms Center (Attn: NPODS) , 5801 Tabor Avenue, Philadelphia, PA 19120-5099.) Provided by IHSN
11、ot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. z I MIL-L-27575 62 W 9979906 0306337 5 W MIL-L-29575 (AS) 2.1.2 Other Government documents, drawings and publications. The following other Government documents, drawings and publications form a part of this specifica
12、tion to the extent specified hrein. * Unless otherwise spec- ified, the issues are those cited in the solicitation. FEDERAL AVIATION ADMINISTRATION SPEC IFICATI ONS FAA-E- 1 100 Photometric Test Procedures for Condenser Dis- charge Lights ADVISORY CIRCULAR AC 150/5345-7 Specification for L-824 Under
13、ground Electrical Cable for Airport Lighting Circuits (Copies of specifications, standards, drawings and pub1 icat ions required by suppliers in connection with specific acquisition functions should be obtained from the procuring activity or as directed by the contracting officer.) 2.2 Non-Governmen
14、t publications. The following documents form a part of this specification to the extent specified herein. Unless otherwise spec- ified, the issues of the documentswhich are DOD adopted are those listed in the issue of the DODISS cited in the solicitation. Unless otherwise spec- ified, the issues of
15、the documents not listed in the DODISS are the issue of the documents cited in the solicitation. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM B633-78 Zinc on Iron and Steel, Electrodeposited Coatings of (Application for copies should be addressed to the American Society for Testing and Mat
16、erials, 1916 Race Street, Philadelphia, PA 19103-1187.) NAT1 ONAL ELECTRICAL MANUFACTURERS ASSOCIATION (NEMA) NEMA 250-1979 Enclosures for E lectr ica 1 Equipment (Application for copies should be addressed to the National Electrical Manu- facturers Association, 2101 L Street NW, Washington, DC 2003
17、6.) this document and the references cited herein (except for associated detail specifications, specification sheets or MS standards), the text of this document takes precedence. applicable laws and regulations unless a specific exemption has been obtained. not specified herein shall be selected in
18、accordance with MIL-STD-970. 2.3 Order of precedence. In the event of a conflict between the text of Nothing in this document, however, supersedes Specifications and standards for necessary commodities and services Provided by IHSNot for ResaleNo reproduction or networking permitted without license
19、from IHS-,-,-MIL-L-27575 62 m 7779706 OLOb31 7 m MI L-L-29575 (AS) 3. REQUIREMENTS 3.1 First article. When specified in the contract or Durchase order, a sam le shall be subjected to firkt article inspection and testing (see 4.4-and 6.3p. 3.2 Materials. All materials used in fabrication of the capac
20、itance- discharge wave-off lights shall be suitable for the intended purpose and adequately protected against corrosion. The components shall have adequate capacity and shall not be operated in excess of the component manufacturers recommended rating. Any plastic components exposed to sunlight shall
21、 be made of infrared and ultraviolet stabilized material. All components and materials used in the optical assembly unit shall be ozone resistant (see 4.6.1). 3.2.1 Fungus-proof materials. Materials that are nutrients for fungi shall not be used where it is practical to avoid them. Where used and no
22、t hermetically sealed, they shall be treated with a fungicidal agent acceptable to the procuring activity. However, if they will be used in a hermetically sealed enclosure, fungicidal treatment will not be necessary. reclaimed materials suitable for the purpose and adequately protected against corro
23、sion will be permitted. 3.2.3 Metals. Metals shall withstand the mechanical stress involved and shall be inherently corrosion resistant or adequately protected as specified herein, after fabrication, to prevent corrosion or oxidation under the service conditions. The use of dissimilar metals in cont
24、act with one another shall be avoided where practicable. However, if their use cannot be avoided, they shall be in accordance with MIL-STD-889. 3.2.2 Recycled and reclaimed materials. The use of recycled and 3.2.4 Aluminum. Aluminum castings, if used, shall be impregnated in accordance wwSTD-276. 3.
25、2.5 Protective coatings. Protective coatings used for prevention of corrosion shall be as follows: a. Plating. All iron and steel parts, excluding stainless steel, shall be zinc or cadmium-plated in accordance with ASTM B633 or 3.2.6 Glass. Glass used as an optical or structural part shall meet all
26、QQ-P-416. requirements of this specification, which includes the requirement of MIL-C-7989 for Class B glass. impact strength. The glass shall be tempered to withstand thermal shock. Glass parts shall be supported in such a way that they will not be damaged by vibration, shock or deflection of any p
27、art. 3.2.7 Silicone rubber. Gaskets used at separable joints for cushioning and sealing shall be capable of sustained operation at ambient temperatures from -55C to t55OC. The rubber shall meet the requirements of ZZ-R-765, Class IIB. optical assembly unit, the gaskets shall be ozone resistant. Clas
28、s C glass may be used, if required, for Low compression set material shall be used. If used in the c r O a 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-27575 62 W 7777706 0306337 7 W MI L-L-29575 (AS) 3.3 Desi n. unit, a power converter un
29、it, and the interconnecting cable between these assemblies (see 4.6.1). The light shall be capable of operating with up to 150 feet of cable between the optical assembly unit and the power converter unit. The light shall be designed to operate satisfactorily under all weather conditions. T.he weight
30、 and size shall be held to the minimum consistent with the necessary strength and rigidity. The exact shape and design are optional provided all requirements specified herein are met. The electrical require- ments are as follows: Normally, six (6) of these lights are installed to form a wave-off lig
31、 + ting system. Each light shall consist of an optical assembly 3.3.1 Input volta e. The photometric intensity and flash rate require- percent, 60 Hertz t2 percent frequency, sin le phase (see 4.6.2.1), except if a lower input voltage is specified (see 6.2 3 . The source of electrical power may be f
32、rom the lighting vault or an alternate source, but all lights in a system shall be energized simultaneously from the same source. ments shall + e met at an input voltage of 480 volts alternating current 210 3.3.1.1 Variation of input voltage. The light shall continue to operate for input voltage var
33、iations of t29 percent without damage to components. Photometric intensity may not coEply with the requirements of 3.7.1.1. Spec- ified performance shall be obtained within two seconds after return to rated voltage (see 4.6.2.2). 3.3.2 Power. The average power required for each light during opera- t
34、ions- shall =exceed 600 watts. The volt-amperes shall not exceed 1200 VA (see 4.6.2.3). 3.3.3 Operation and intensity control. The lights shall operate upon If a change in intensity setting occurs during an operating application of power at one of two intensities as selected by a manual switch or au
35、tomatic control such as a photoelectric cell or electrical timer con- trolled relay. cycle, the initial intensity shall be maintained to the end of the cycle (see 4.6.2.4). 3.3.4 Operation cycles. The operation cycle for these lights may be varied from 5 to 60 seconds. The liqhts shall Drovide the r
36、equired Der- formance for three consecutive 60 second cvcles and repeat continuous1 v after a 30 second cooling period following each set of three60 second cycles (see 4.6.2.5). 3.3.5 Dielectric protection. The lights shall be capable of with- standing the application of 5000 volts potential for a p
37、eriod up to 10 milli- seconds between the equipment enclosure (electrical ground) (see 3.3.7) and any power or control cable without damage to components (see 4.6.2.6). Lightning arrestors shall be installed at the terminal connections for the power cables and the intensity control cables, but shall
38、 be disconnected for the dielectric protection test. 3.3.6 Circuits protection. The solid state or electronic circuits shall be designed such that failure of one or more lights shall not damage or affect operation of other lights (see 4.6.2.7). - - Provided by IHSNot for ResaleNo reproduction or net
39、working permitted without license from IHS-,-,-MIL-L-27575 62 M 777790b 0306320 5 MIL-L-29575(AS) 3.3.7 Groundin . Both the optical assembly unit and the power converter unit shall be + provi ed with an external connection or device for connecting the unit to the installed ground (see 4.6.1). 3.3.8
40、Electromagnetic interference. The system shall be designed to be capable of operating in proximity to other electronic equipment without causing electromagnetic interference to other electronic equipment in the vicinity, The lights shall not be sensitive to EM1 on the input cables or to radiated noi
41、se from nearby equipment. 3.4 Construction. The light shall be so constructed that no parts will work loose in service. It shall be built to withstand the strains, jars, vibrations, and other conditions incident to shipping, storage, instal lation and service (see 4.6.1). 3.5 Hardware, Standard mili
42、tary hardware shall be designed into the assemblies to the maximum extent possible, exce t that assembly hardware, including screws, nuts, bolts, washers and latc R es, shall be 18-8 stainless steel (see 4.6.1). 3.6 Maintainability. All components shall be designed for ease of main- tenance. assembl
43、y unit after certain maintenance procedures. Adjustments and re airs which are normally available commercially (see 4.6.1). number shall be functionally and dimensionally interchangeable. The drawing number requirements of DOD-D-1000 shall govern changes in the manufacturers part numbers. If require
44、d, means shall be provided for refocusing the optical shall be such that maintenance personnel can easily make them using too Y S 3.6.1 Interchangeability. All parts having the same manufacturers part 3.7 Performance characteristics. The performance requirements of the lights shall be as follows: 3.
45、7.1 Photometric reauirements. 3.7.1.1 Effective intensity (white). The emitted light in the peak of the beam of the optical assembly unit shall have a peak effective intensity of white light (color filter removed) for the high intensity setting not less than 800,000 candelas nor more than 1,600,000
46、candelas, and not less than 80,000 candelas nor more than 160,000 candelas for the low intensity setting (see 4.6.3.1) 3.7.1.2 Effective intensity (red). With the color filter installed, the peak effective intensity of red light in the peak of the beam for the high intensity shall be not less than 5
47、0,000 candelas (see 4.6.3.2). 3.7.1.3 Beam distribution, The width of the beam at 50 percent of the minimum required peak effective intensity at the peak of the beam shall be not less than 10 degrees horizontally and 8 degrees vertically. The shape of the beam may be approximately rectangular, ellip
48、tical, or circular, but the isocandela curve shall enclose the 10 degree by 8 degree rectangle, except the corners may be rounded on a 2 degree radius (see 4.6.3.3). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-L-29575 62 7777706 0306323 7 M M
49、IL-L-29575( AS) 3.7.1.4 Beam axis location. The beam axis shall not be more than 1.5 degrees from the mechanical axis of the optical assembly or of the aiming alignment (see 4.6.3.4). 3.7.2 Color of emitted light. The color of the emitted light with the filter installed shall be aviation red or comparable to that with a Wratten 29 filter. With the filter removed, the preferred color of emitted light is aviation white but xenon white is acceptable
