1、MIL-R-10265D 27 77777Ob 0187045 b m- - MIL-R -1026 5D 17 January 1974 SUPERSEDING MIL-R-10265C; 15 28-VOLT DIRECT CURRENT, VIBRATING TYPE THIS SPECIFICATION IS APPROVED FOR THE USE BY AIL DEPARTMENTS AND AGENCIES OF THE DEPARTMENT OF DEFENSE 1. SCOPE 1.1 Scope. This specification covers vibrating ty
2、pe generator-regulators incorporating devices to control reverse current and to regulate voltage and current. 28-volt direct current generators (see 6.1). The regulator is inclosed in a single housing for use in regulating 1.2 Classification. ified (see 6.2 and 6.3j: Regulators shall be of the follo
3、wing grades as spec- Grade A - Waterproof. Grade B - Nonwaterproof. 2. ApELIcABLEmuMENTs 2.1 The folloiring documents of the issue in effect on date in invitation for bids or request for proposal form a part of the specification to the extent specified herein: SPM: IFICATIONS Federal TT-E-+ Military
4、 MIL-P-514 1-11188 MIL-G-12604 MIL-E-13856 Enamel; Alkyd Gloss (for Exterior and Interior Surfaces). Plates , Identification, Transportation - Data m-d Blank. EBtteries , Storage: kad-Acid. Generator, wine Accessory: Direct-Current, 28 Volt Nominal. Electrical Components for Automotive Vehicles; Wat
5、erproofness and Resistance to Temperature Cycling Tests, General Requirements for . FSC -2920 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-10265D STANDARDS Military . MIL-STD-105 MIL-SFD-I 30 MIL-STD-202 MIL-SlDJ+54 MS-13803 MS-13805 Samplin
6、g Procedures and Tables for Inspection by Attributes. Identification Marking of US Military Property. Test Methods for Electronic and Electrical Component Parts. Standard General Requirements for Electronic auipment . Regulator, Voltage and Current (Generator, Engine Accessory, 24-volt, 40-Amp). Reg
7、ulator, Voltage and Current (Generator, mine Accessory, 24-Volt, 18-Amp). (Copies of specifications, standards, drawings and publications required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.)
8、 2.2 Other publications. The following documents form a part of this spec- ification. Unless otherwise specified, the issue in effect on date of invita- tion for bids or request for proposal shall apply. NATIONAL BUREAU OF STANDARDS . IJsndbook a8 - Screw-Thread Standards for Federal Service. (Appli
9、cation for copies should be addressed to the Superintendent of Do- cuments, Government Printing Office, Washington, D. C. 20402.) 3. Rlxums 3.1 First Article. When specified (see 4.2 and 6.2), three samples of the regulators to be furnished under this specification shall be produced prior to the man
10、ufacture of these item in production quantity. Under the surveillance of Government representatives, designated by the contracting officer, the manufacturer shall subject these regulators to the first article testing spec- ified herein to determine conformance to the quality assurance provisions of
11、this specification. The government representatives shall determine which of the samples shall undergo which sequence of first article testing (see 4.2). The samples shall be fully representative of the regulators to be supplied from production facilities and tooling. %terials shall be as specified h
12、erein and on applicable dpawings, standards and specifications When the material used is not speci- fically covered in any of the referenced documents, it shall withstand the tem- perature range encountered within the component for which it is intended for use without any change in physical or chemi
13、cal properties resulting in calibra- tion or operation to fall outside limits specified herein. 3.2 Materials. 2 _. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R -1026 5D 3.3 DesiSn and construction. In order to assure mechanical and electri-
14、 cal interchangeability, regulators shall be fabricated in conformance with ap- plicable ivls standards or drawings (see 6.2). Rating. standard. Standard parts. Military standard parts The amperage rating shall be as Threaded parts. All screw threads shall The form, number per inch and class of thre
15、ads shall be as specified on appli- cable standards or drawings. 3.3.1 3.3.2 drawing or sible. 3.3.3 specified on the applicable shall be used whenever pos- conform to Handbook 28. 3.3.4 Dissimilar metals. Except where necessary to complete an electri- cal circuit, contact between dissimilar metals,
16、 which would encourage galvanic action, shail be avoided. Where such contact is not necessary to c a frequency of 60 hertz for the length of time specified herein, the regulator shall evidence no smoking, sparking, arcing, flashover, burning or charring of the insulation, conducting cables, connecto
17、rs, insulated %exminal$, windings and other conducting parts. The regulator shall subsequently meet the requirements of 3.4.1, 3.4.2 and 3.4.3. 3.4.6 Vibration. When subjected to vibration of the frequences and am- plitudes and for the length of time specified herein, the regulator shall evi- dence
18、no chattering of the cutout relay contact points, loosening of parts, ab- rasion, breakage or other physical damage. 3.4.7 Shock resistance. The generator regulator shall withstand the saw- tooth shock pulses specified herein with no evidence of cutout relay contact points closing; no breakage, loos
19、ened or distorted parts or other physical dam- age. The regulator shall subsequently meet the requirements of 3.4.1, 3.4.2 and 3.4.3. 3.4.8 Extreme temperature resistance. Following stabilization at the tem- peratures specified herein, the regulator shall meet the requirements of 3.4.1, 3.4.2 and 3.
20、4.3, except that the output voltage (see 3.4.2) shall be 27.5 f 1.5 volts at plus 160F. 3.4.9 Corrosion resistance. The regulator shall withstand salt spray cor; rosion for the length of time herein specified and SU evidence no corrosion that would adversely affect performance. the requirements of 3
21、.4.1, 3.4.2 and 3.4.3. The regulator shall subsequently meet 3.4.10 Waterproofness. Grade A regulators shall Confarip to th4 n-2- -BU requirements specified for type II, CUSS 1, components of MIL-E-13856. 3.5 Finish. Every exterior metal aurface,other than the electrical con- nectors, shall be paint
22、ed. finish pinted with gloss enamel. Au. painted surfaces shall be primed and subsequently Rime and finish coats shall have a combined mini- 3.5.1 Film thickness. mum thickness of one mil. 4 - I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.5.2 E
23、namel. Finish coat enamel shall be black-gloss enamel conforming to IT-E4897 3.6 Identification of product. 3.6.1 Markiq. The regulators shall be marked in accordance with MIL-m- 130. 3.6.2 Nameplate. A nameplate conforming to MIL-P-514 shall be attached The legend contained on the plate shall inclu
24、de the following as a to the regulator housing in the manner specified on the applicable standard or drawing. minimum: Regulator, Generator AMPS, 28 Volts M: Specification - MIL-R-10265 Manufacturers Identification Manufacturer !s Part Number Serial Number Military Brt Number Federal Stock Number us
25、 3.7 Workmanshi . Workmanship shall conform to the requirements of require- ment 9 of -T-3? MIL Sm, 54. 4. QUALITY ASSLJRANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the con- tract or purchase order, the supplier is responsible for the performance of:U inspection
26、requirements as specified herein. the contract or order, the supplier may use his own or any other facilities suit- able for the performance of the inspection requirements specified herein, un- less disapproved by the Goverment. form any of the inspections set forth in the specification where such i
27、nspec- tions are deemed necessary to assure supplies and services conform to prescribed requirements. Except as otherwise specified in The Government reserves the right to per- 4.2 First Article inspection. When required (sec 3.1 and6.2), samples shall consist of three regulators. First article insp
28、ection-and testing shall be performed by the contractor under Government surveillance and shall consist of examination for defects specified in 4.3.2.2 and performance of tests spec- ified in table I, in the order listed. 5 /- -. . Provided by IHSNot for ResaleNo reproduction or networking permitted
29、 without license from IHS-,-,-NIL-R-LO265D 29 m 9999906 0189050 T m MIL-R-1026 5D Table I. Order of First Article Testiq Paragraph Specimen 12 3 xx x Requirement NO Test 4.5.1 Reverse current control 3.4.1 Voltage regulation 3.4.2 4.5.2 xx x Current regulation 3.4.3 4.5.3 xx x Extreme temperature 3.
30、4.8 4.5.8 xx Ehdurance 3.4.4 Corrosion 3.4.9 4.5.9 Shock 3.4.7 4.5.7 Waterproofness (Grade A only) 3.4.10 4.5.10 xx High voltage 3.4.5 4.5*5 xx 4.5.4 X X X Vibration - 3.4.6 4.5.6 X 4.2.1 Failure. Failure of a first article sample to pass any of the ex- aminations or tests specified herein, may be c
31、ause for the Governments refusal to witness additional examimtiom of tests until the faults revealed.have been corrected. 4.3 Quality conformance inspection. 4.3.1.1 Ut formation. A lot shall consist of all regulators of one grade or rating, from an identifiable production period, from one manufactu
32、rer, sub- mitted at one time for acceptance. 4.3.1.2 Sampling for examination. Samples for quality conforniance examina- tion shall be selected in accordance with MIL-SPD-105. 4.3.1.3 Sampling for testing;. A representative sample shall be selected in accordance with inspction level S-3 of MIL-SPD-1
33、05 from each lot that has passed the examination specified in 4.3.2.2. 4.3.2 Btamination. 4.3.2.1 Acceptable quality level. Each regulator selected in accordance with 4.3.1.2 ity levels (AU) on the basis of percent defective: shall be examined for conformance to the following acceptable qual- Classi
34、fication fips jor Minor AQL 1.0 2.5 i 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-R-10265D 29 9999906 OLB9051 L MIL-R-1026 5D 4.3.2.2 Classification of defects. For examination purposes, defects shall be classified as fallows: Major defects
35、 (1.0 AC f 5OF. 24 hours 4.5.1, 4.5.2, 4.5.3 I Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R -10265D 4.5.9 Corrosion-resistance. The regulator shall be subjected to the salt Grade spray corrosion-resistance test specified in method 101 of MIL
36、-STD-202. A regulators (see 1.2) shzllbe tested for 300 hours sealed. tors (see 2.1) shall be tested for YO hours open. nent parts shall remain sealed diuring the test. contacts shall be cleaned snd the regulator recalibrated. lution concentration shall be used. The specimen shall subsequently be te
37、sted in accordance with 4.5.1, 4.5.2 and 4.5.3 to determine conformance to 3.4.9. Grade B regula- Hemtically-sealed compo- When applicable, the regulator A PO percent salt-so- 4.5.10 Waterproofness. Grade A regulators shall be subjected to appli- cable waterproofness tests for components classified
38、in MIL-E-13856 as type II, class 1. 4.5.10.1 Preproduction and control. To determine conformnce to 3.4.10, grade A regulators shall Se subjected to the sreproduction and control water- proofness test specified in 1-13856. 4.5.10.2 Wlity conf omnce . To determine conformance to 3.4.10 , grade A regul
39、ators shall be subjected to the quality ccnformance test specified in MIL-E-13856. - 4.6 4.6.1 Materials and processes. The Government inspector shall at unsched- uled intervals, inspect all materials and processes involved in the preparation for delivery, to determine conformance to requirements of
40、 section 5. dence of deviation from specified requirements shall be cause for refusal to conduct further inspection until objective evidence has been provided by the contractor that corrective action has been taken. Inspection of preparation for delivery. Any evi- 5. PREPARATION FOR DELIVERY 5.1 Pre
41、servation, packaging, pa cking and marking. Preservation, packaging, mckiw and marking for the desired level of protection shall be in accordsnce With tce applicable packaging standard or packaging data sheet specified by the procuring activity (see 6.2) 6. NOTES 6.1 Intended use. The regulators cov
42、ered by this specification are in- tended for use in 28-volt DC nominal electrical systems equipped with charging generators. The regulators are Intended for use on off-road engineering vehi- cles and inductrical applications. 11 Provided by IHSNot for ResaleNo reproduction or networking permitted w
43、ithout license from IHS-,-,-UIL-R-102b5D 29 0b 0389056 0 m . 6.2 ?rocwemerit documents should specify the following: (a) (b) (c) (d) (e) Title, nxnber and date of this specification. Grade of regulator require2 (see 1.2). First article Testing, if required (see 3.1 and 4.2). Ppplicable drawbg or Mil
44、itary standard (see 3.3). Selection of applicable levels of preservation and packaging (see 5.1). 6.3 Change of classification. This revision deletes reference to types Solid state regulators, which I and II in the classification of regulators. were type I, are now covered by other military specific
45、ations. 6.4 Definitions. 6.4.1 Minimum rated speed. to “generator minimum rated speed“. speed at which generator will deliver rated current at 28.5 f 0.1 volts. current for the generator is the curent indicated on the applicable MS stand- ard or drawing. / The term as used in this specification appl
46、ies Rated Generator minimum rated speed is the lowest 6.4.2 Minimum speed for regulation. The minimum speed for regulation is a generator speed 500 RPM greater than the minimum rated speed. 6.4.3 - Cycle. A cycle shall consist of varying the generator speed from maximum rated speed, down to low spee
47、d (see 4.5.4.2) and then returning to maxi- mum rated speed. cycling time above (or below) middle rated speed will be 50 f 10 percext fof the total cycling time. The generator speed shall be varied in such a manner that the 6.4.4 Lov speed. The speed low enough to cause the cutout relay to open. 6.4
48、.5 Set voltage. Set voltage is the voltage to which the regulator out- put is adjusted vith the generator operating at average speed and with no load except the battery. Setting is accomplished after the regulator has been Sta- bilized. 6.4.6 Regulator, stabilized. A stabilized regulator is defined
49、as a reg- ulator which is being operated at minimum speed for regulation with resistance and battery adjusted so as to extablish 80 percent of rated load current at 28 volts; and which when so operated experiences a temperature change of less than 2OF over a 15 minute period. 12 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_ 1 flIL-R-30265D 29 999990
