1、MIL-PRF-62071 C(AT) - SUPERSEDING MIL-P-62071B (AT) 13 November 1986 19 April 1977 MIL-P42071/1C(AT) PERFORMANCE SPECIFICATION POWER SUPPLY: HIGH VOLTAGE, SOLID STATE, 24 VOLTS, DIRECT CURRENT This specification is approved for use by the U.S. Army Tank-automotive and Armaments Command, Department o
2、f the Army, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Smpe. This specification covers one type of power supply for conversion of low voltage direct current (dc) electrical energy into high voltage dc electrical energy (see 6.1). 2, APPLICABLE
3、 DOCUMENTS 2.1 Genetal. The documents listed in this section are specified in sections 3 and 4 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information or as examples. While every effort has been made to en
4、sure the completeness of this list, document users are cautioned that they must meet all specified requirements documents cited in section 3 and section 4 of this specification, whether or not they are listed. Beneficial comments (recommendations, additions, deletions) and any pertinent data which m
5、ay be of use in improving this document should be addressed to: U.S. Army Tank-automotive and Armaments Command, ATTN: AMSTA-TR-EBLUE, Warren, MI 48397-5000 by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 2590
6、 IJTTON STKEIYUBJEA. Approved for public release; distribution is unlimited. Licensed by Information Handling Services MIL-PRF-b207LC 999990b 2033956 O96 = MIL-PRF-6207 1 C (AT) 2.2 Government. . The following specifications, standards, . 2.2.1 and Lead Alloy. - Enamel, Alkyd, Gloss (For Exterior an
7、d Interior Surfaces). STANDARDS FEDERAL FED-STD-595 - Colors. DEPARTMENT OF DEFENSE MIL-STD-193 MIL-STD-454 MIL-STD-461 MIL-STD-462 MIL-STD-810 MIL-STD-889 MIL-STD-1184 MIL-STD-1275 MS27190 - Painting Procedures and Marking for Vehicles, Construction Equipment and Material Handling Equipment. - Stan
8、dard General Requirements for Electronic Equipment. - Electromagnetic Emission and Susceptibility Requirements - Electromagnetic Interference Characteristics, Measurement - Environmental Test Methods and Engineering Guidelines. - Dissimilar Metals. - Electrical Components for Automotive Vehicles; -
9、Characteristics of 28 Volt DC Electrical Systems in - Connector, Receptacle, Electrical-High Voltage, for the Control of Electromagnetic Intederence. of. Waterproofness Tests. Military Vehicles. Waterproof. 2 Licensed by Information Handling Services(Unless otherwise indicated, copies of the above s
10、pecifications, standards, and handbooks are available from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 191 11-5094.) -. 2.3 Non-Govv . The following document forms a part of this document to the extent specified herein. Unless otherwise specified, the i
11、ssues of the documents which are DoD adopted are those listed in the issue of the DoDISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DoDISS are the issue of the documents cited in the solicitation (see 6.2). AMERICAN SOCIETY FOR TESTING AND MATERI
12、ALS (ASTM) ASTM B117 ASTM B633 - Standard Test Method of Salt Spray (Fog) Testing. - Electrodeposited Coating of Zinc or Iron and Steel, Specification For. (Application for copies should be addressed to American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) AMERICAN N
13、ATIONAL STANDARD INSTITUTE (ANSI) ANSI S3.6 ANSUASQC 21.4 - Audiometers, Specification for. - Sampling Procedures and Tables for Inspection by Attributes. (Application for copies should be addressed to American National Standard Institute, Inc., 11 W. 42nd Street, 13th Floor, New York, NY 10036.) AC
14、OUSTICAL SOCIETY OF AMERICA (ASA) ASA 47 - Sound Level Meters. (Application for copies of Acoustical Society of America publications should be addressed to the acoustical Society of America, 335 East 45th Street, New York, NY 10017.) 2.4 v. In the event of a conflict between the text of this documen
15、t and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3 Licensed by Information Handling ServicesMIL-PRF-62071C rn 9799906 2033958 b9 rn 3. REQUIREMEN
16、TS 3.1 Ekskxh the corresponding output voltages shall be recorded to determine compliance with table I and 3.4.1.4. The load shall then be reduced to 80 megohms, and the input voltage shall be varied; the corresponding output voltages shall be recorded to determine compliance with 3.4.1.4 and table
17、I. 4.7.4.1.5 nytput vol- . To determine conformance to 3.4.1.5, The power supply shall be tested as follows: Connect the power supply to a 160-megohms divided load resistor and microammeter. Place the microammeter in the grounded side of the line. A 5-minute warm up period shall precede the test. Us
18、e an oscilloscope to measure the voltage across the 50,000- ohm portion of the load resistor adjacent to the microammeter. Convert the microammeter readings to (average) dc output voltage. Obtain the peak alternating current (dc) voltage readings from the oscilloscope. Then calculate the voltage var
19、iation as peak ac voltage divided by (average) dc output voltage to determine compliance with 3.4.1.5. 15 Licensed by Information Handling ServicesMIL-PW-6207 1 C (AT) 4.7.4.1.6 - . To determine conformance to 3.4.1.6 and MIL-STD-1275, the power supply with a load of 160 megohms shall be subject to
20、an input voltage of 30 V with a superimposed square wave impulse of 70 V peak (100 V peak total) of 50 f 5 ms duration and a repetition rate of 6 f 0.5 seconds for a period of 8 hours. After the test, the power supply shall be tested as specified in 4.7.4.1.4 to determine compliance with 3.4.1.4. 4.
21、7.4.1.7 To determine conformance to 3.4.1.7, an ammeter shall be used to determine the input current. 4.7.4.1.8 * . To determine conformance to 3.4.1.8, the source polarity shall be reversed, and voltage from O to 40 V dc shall be applied. A multirange ammeter in the input circuit shall be used to i
22、ndicate the current magnitude and its direction. 4.7.4.1.9 * . To determine conformance to 3.4.1.9, the power supply shall be operated with no load for 5 minutes and tested in accordance with 4.7.4.1.4. 4.7.4.1.10 . To determine conformance to 3.4.1.10, the output of the power supply shall be short-
23、circuited with the power supply operating into a 160 megohm load within the functional voltage range (18 to 30 V). Subsequent to the test the power supply shall be subjected to the test specified in 3.7.4.1.4. 4.7.4.1.11 Endurance. To determine conformance to 3.4.1.11, the power supply shall be subj
24、ected to continuous operation with 26 V input and a 160 megohm load resistor for 1000 hours. At intervals of 50 hours, the specimen shall be tested as specified in 4.7.4.1.4 to determine compliance with 3.4.1.4. Upon completion of the endurance test, the power supply shall be tested as specified in
25、4.7.4.1.4 and 4.7.4.1.5 to determine conformance with 3.4.1.4 and 3.4.1.5. 4.7.4.2 Environmentai. 4.7.4.2.1 . To determine conformance 3.4.2.1, the high temperature cycling test of MIL-STD-810, method 501, procedure II shall be followed, except that the power supply stabilization temperature shall b
26、e 185F. The operation shall be conducted with test item stabilized at 160F and shall consist of the tests specified in 4.7.4.1.4 and 4.7.4.1.5 to determine compliance with 3.4.1.4 and 3.4.1.5 to determine compliance with 3.4.1, the power supply shall pass the tests specified in 4.7.4.1 upon completi
27、on of the low temperature test specified in 4.7.4.2.2. 16 Licensed by Information Handling ServicesMIL-PRF-6207 1 C (AT) Test Duration: 96 minutes per 30 miles 1.0000 Overall rms level: 2.00 G r ,5000 .eo00 .o020 .o010 5.0000 10.0000 20.0000 50.0000 100.000 200.000 Frequency (HZ) FIGURE 2. Basic tra
28、nsportation. two wheeled trailer environment. loneitudinal axis. BREAKPOINTS FREQ PSD VALUE 5 .O7220 6 .O7220 8 .I7660 10 .O5490 11 .O6070 13 .O2360 15 .O5490 18 .O2740 20 .O3600 22 .O9030 27 .O1670 30 .O4620 34 .O1240 36 .O1630 42 .O0870 53 .O1300 63 .O0480 66 .O0660 78 .O0370 102 .O0630 141 .O1470
29、 150 .O7400 167 .O1550 200 .O2030 4.7.4.2.2 mt. To determine conformance to 3.4.2.2, the low temperature cycling test of MIL-STD-810, method 502, procedures I and II shall be followed, except that the storage temperature shall be -80 “F for 12 hours. The operation test, procedure II, shall be conduc
30、ted with test item stabilized at -65F and shall consist of the tests specified in 4.7.4.1.4 and 4.7.4.1.5 to determine compliance with 3.4.1.4 and 3.4.1.5. Upon stabilization at 77F after cycling, the power supply shall be tested as specified in 4.7.4.1 to determine compliance with 3.4.1. 4.7.4.2.3
31、Shock. To determine conformance with 3.4.2.3, the power supply shall be tested in accordance with the shock test of MIL-STD-810, method 516, figure 516.4-4, except the duration shall be 18 milliseconds. The peak amplitude shall be 40g. After the test the power supply shall be tested as specified in
32、4.7.4.1.4 to determine compliance with 3.4.1.4. 17 Licensed by Information Handling ServicesNIL-PRF-62071C 7779706 2013772 239 MIL-PRF-62071C (AT) 4.7.4.2.4 Vihr atian. To determine conformance to 3.4.2.4, the power supply shall be subjected to a vibration test using figure 1, except the loading sha
33、ll be 10 gs. This figure represents the basic transportation, two wheeled trailer environments, longitudinal axis. The spectrum is broad band random with peaks and notches at various discrete frequency bands. Break points are provided for establishing the spectrum shape. After the test, the power su
34、pply shall be tested as specified in 4.7.4.1.4 to determine conformance to 3.4.1.4. 4.7.4.2.5 Humidi. To determine conformance to 3.4.2.5, the power supply shall be tested as specified in MIL-STD-810, method 507, procedure II. After the test, the power supply shall be tested as specified in 4.7.4.1.
35、4 to determine compliance with 3.4.1.4. 4.7.4.2.6 -. To determine conformance to 3.4.2.6, the power supply shall be tested in accordance with type II, class 2, method 100, procedure I of MIL-STD-1184. The power supply shall not be operated while immersed in the solution. After the test, the power su
36、pply shall be tested as specified in 4.7.4.1.4 to determine compliance to 3.4.1.4. 4.7.4.2.7 . To determine conformance to 3.4.2.7, the power supply shall be subjected to the salt fog test in accordance with ASTM B117, for four test cycles (192 total hours) while in sealed condition with no internal
37、 parts exposed. After the test, the power supply shall be tested as specified in 4.7.4.1.4 to determine compliance with 3.4.1.4. 4.7.4.2.8 . To determine conformance to 3.4.2.8, the power supply shall be tested as specified in MIL-STD-810, method 508, for a continuous period of 90 days from the time
38、 of inoculation. After the test, the power supply shall be tested as specified in 4.7.4.1.4 to determine compliance with 3.4.1.4. . 4.7.4.2.9 . To determine conformance to 3.4.2.9, the power supply shall conform to the applicable provisions of MIL-STD-461 for class A3 equipment and shall be tested i
39、n accordance with MIL-STD-462. 4.7.4.2.10 lY&dwd . To determine conformance to 3.4.2.10, inaudibility shall be as determined by three listeners with hearing not over 20 decibels (dB) loss as evidenced by a hearing test made within 6 months of test of the power supply. The hearing test shall have bee
40、n made by a person meeting the criteria of the inter-society committee on industrial technician training, and using a pure tone audiometer, either wide range or limited range type meeting the requirements of ANSI S3.6. The power supply shall be operated at 28 V and resistor load of 160 megohms. The
41、unit shall be in an environment not exceeding 40 decibels (a weighted system response) &(A) measured with the units not operating. The environment measurement shall be made with a sound level meter which meets the requirements for type II of ASA 47. The listeners shall be positioned so that each ear
42、 in turn shall be positioned 12 inches from the nearest surface of the power supply unit and five surfaces shall be so employed. 18 Licensed by Information Handling Services flIL-PRF-62071C 9999906 2033973 175 MIL-PRF-62071 C (AT) 4.8 Finish. To determine conformance to 3.5, the exterior surfaces of
43、 the power supply shall be painted, except the electrical connections, with a gloss enamel conforming to TT-E-489 in accordance with MIL-STD-193. Color shall be white conforming to chip 17875 of FED-STD-595. 4.9 Safetv. To determine conformance to 3.3.1, the power supply shall meet the applicable sa
44、fety requirements specified in requirement 1 of MIL-STD-454. 4.10 Scilder. To determine conformance to 3.2.1, solder employed in making electrical connections shall be a resin core type conforming to QQ-S-571. 4.11 Steel. To determine conformance to 3.3.3, all steel parts not to be painted or not ot
45、herwise protected against corrosion shall be zinc plated in accordance with ASTM B633. . 4.12 . To determine conformance to 3.3.2, except where necessary to complete an electrical circuit, contact between dissimilar metals which would foster galvanic action should be avoided where such contacts are
46、not necessary to complete an electrical circuit, but is otherwise unavoidable parts shall be insulated as specified in MIL-STD-889 for type II, class 3 components. 5. PACKAGING 5.1 Packaeing. For acquisition purposes, the packaging requirements shall be as specified in the contract or order (see 6.2
47、). When actual packaging of material is to be performed by DoD personnel, these personnel need to contact the responsible packaging activity to ascertain requisite packaging requirements. Packaging requirements are maintained by the Inventory Control Points packaging activity within the Military Dep
48、artment or Defense Agency, or within the Military Departments System Command. Packaging data retrieval is available from the managing Military Departments or Defense Agencys automated packaging files, CD-ROM products, or by contacting the responsible packaging activity. 6. NOTES (This section contai
49、ns information of a general or explanatory nature that may be helpful, but is not mandatory.) 6.1 Intended. Power supply assemblies covered by this specification are intended for use in tactical military vehicles to supply high voltage electrical energy used in viewing devices. This power supply is a compact, light-weight replacement for the power supply described in figure 1 within drawings D7355743 and D7978752. 19 Licensed by Information Handling ServicesMIL-PRF-b2073C 0b 2033974 003 6.2 Orderinegha. Procurement documents should specify the following: a. Ti
