1、_- - - - Panel Type, . Roggedizcd. Resistors, Fixed, Film (high trab?lity) Style RN70. MIL-W 4858 MIL*-1 ow MI L-R-105509/3 Sheet 1 of 20 LIIeets FSC 61 15 , Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted wi
2、thout license from IHS-,-,-* MIL-G-55123 61 m 7777906 0093732 5 MIL-M-10578 MIL-R-11050 MIL-M-11473 MIL-1-1 1683 MIL-M-13231 MIL+-14072 STANDARS MILITARY MIL-STD-22 MIL-STD-1 O5 MIL-STD-108 MI L-STD-129 MI LOST D-175 MI L-ST D-705 Metal Conditioner and Rust Remvur Rectifiers, Metallic, Selenium Mugn
3、etic-Particle Inspection; Soundness Requirements for Weldments. Interference Suppression, Radio, Requirements for Engine Generoton and Miscellaneous Eng i nes . (Phosphoric Acid base). Marking of Electronic Items. Finishes for Ground Signal Equipnent. We1 ded- Joint Designs. Sampling Procedures and
4、Tab!- for Inspection by ATTRIBUTES. Definitions of and Basic Requireme % for Enclosures and Electric and Electronic Equipment . Marking for Shipment and Storage. Generator Sets, Engine-Drivcn Mc;hds of Generator Sets, Engine Driven, kthob of Tests and Instructions. and Instructions. (Copies of speci
5、fications, standurds, drawings, and publications required by contractors in connection with specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer. Both the title and numbur or symbol should be stipulated when requesting copies.) the e
6、xten- Unlys otherwise indicated, the issue in effect on date of invitation for btb sholl apply. 2.2 Othe: blications. - The following documents fon a part of this specificotim to 2 - i Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction
7、 or networking permitted without license from IHS-,-,-MI L-G-55 1 23(SigC) NATIONAL BUREAU Of STANDARDS Handbook H28 Screw-Thread Standards for Federal Services. (Application for copies should be addressed to the Superifitendent of Documents, Government Printing Office, Washington 25, D. C.) CONSOLI
8、DATED CLASSIFICATION COMMITTEE Uniform Freight Classification (Appiication for copies should be addressed to tle Consolfdated Classification Committee, 202 Union Sfation, Chicago 6, ILL. 3. REQUIREMENTS 3.1 Descri tion - The engin5 generator set consists of an air-cooled, one cylinder, four stroke *
9、 cyc e, gasoline engine directly operating o 14 pole, permanent magnet generator producing 400 cycle, 115 valt a.c.; a rectifier assembly producing 28 volts d.c.; an automatic recoil rope starter, control panel, voltage regulator, governor, speed adjuster, mufflers and other devices required to achi
10、eve a complete engine generator set; all mounted and arranged fui operation within an occoustical case. 3.2 Procurement model.- A procurement model of the equipment will be availoble for insrlection by prospective bidders and will be lent to the contractor. Unless otherwise . specified herein or in
11、the invitation for bids, tho equipment shall conform to the following: 3.3 Physical construction. Physical construction of the generator set shall conform to the model as specified herein, 3.3.1 Features.- The generator set shall incorporate all features of the model. 3.3.2 Performance. - The contra
12、ctor shall adiust the model tor optimum performance and then shall measure its performance characteristics. Performance of the equipment shall conform to those measurements, except that, in case of conflict between specified performance characteristics and the performance of the model, specified per
13、farmonce characteristics shall govern. 2- -, -? 3.4 Preproduction samples. - The contractor shall furnish two (2) preproduction samples for approval provided the invitation for bids cnd conkact requires samples. (See 4.3). Copyright Communications - Electronics Command Provided by IHS under license
14、with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-55L23 bL a 7777906 0073734 7 3.5 Park, materials and processes.- Ports, materials and processes used in the constructiog of tho engine-generator assembly ond the accoustical case shall be as specified h
15、erein. Matetiol not definitely specified shall be of the quality entirely suitable fw the purpose. Material shdl be free from oil defects and imperfections that might affect the seniceability of the finished product. 3.5.1 Meter.- Meters shall conform to Specification MIL-M-10304. 3.5.2 Switches. -
16、Toggle switches shall conform to Specification MIL-S-3950. - - 3.5.3 Rectifiers, metallic. - Selenium rectifiers, sholl conform to Specification MIL-R-11 050. 3.5.4 Knobs. - Control knobs sholl csiifonn to Specification MIL-K-3926. 3.3.6 Resistors. - Fixed film resistors shall conform to Specificati
17、on MIL-R-l05509/3. - 3.5.8 Rotating joints.- Bearings for rota!ing parts, which are located in aluminum housings or suppork shall have separable slccves or bushings to protect the aluminum . housing or support from damage cause by excessive heat or wear. All moving parts shall be provided with means
18、 of lubricant. 3.6 Engine.- lhe engine shall be gasoline driven, air-cooled, one cylinder, four stroke cymth a continuous duty rating of not less than 1.5 horsepower at a nmil speed of 3600 revolutions per minute. It shall be capable of meeting the requirements specified herein, when operating at a
19、speed rf 3428 R. P. M, when supplied with fuel conforming to Specification MIL-G-3056 or MIL-F-5572. The engine shall meet the lubricating oil consumption test of 4.19. 3.6.1 carburetor. - The engine shall be quipped with a gravity feed carburetor and shall be-adjustable to meet the altitude conditi
20、ons specified herein. 3.6.1.1 Fuel conrum tion. The fuel consumption rate of the engine-generator set shall be determinedand +- recor ed in accordance with the tests of 4.18. 3.6.2 Engine speed gownor.- lhe engine shall be equipped with o centrifugal type govenor and shall be readily adjustable, wit
21、hout use of special tools. * 4 - PROBLEM HARD COPY Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIl-S5123(SigC) -. 3.6.3 Cranking system.- The engine shall be equipped with a r
22、ecoil type starter. The starting cable and handle shall extend through the front panel as required by 3.11 . 3.6.4 Engine speed adiustment,- The speed of the engine shall be adjustable by means of a control that will vary the voltage through the range of 109 to 120 volts. 3.7 Generator, p.ermanent m
23、agnet.- The generator used in conjunction with the engine shall meet the following characteristicr: a, Frequency: 400 cycles . b. Poles: 14 C. Speed: 3428 r. p.m. d. Output: 0.5 KW, single and three phase. 3.7.1 SHORT CIRCUIT test. - The generator after subjection to the test of 4.9 shall show no vi
24、sual damage, and shall continue to operate and maintain rated output, 3.7.1 , 1 Overload capacity. The generoor and associated electrical components and circuitry shall maintain without any damage, 125 percent of rated load output for one hour. (See 4.8.1.1). 3.8. I A-C power. - 115 volts, single ph
25、ase, 400 cycle, a-c, shall be obtained from the single phase winding of the generator, when using the dummy load as specified in 4.8-1 1 3.8.1.1 Volta e regulation, - Voltage regulation shall be 16 percent maximum when . working into 400 + watt 0.95 power factor) load. 3.8.1.2 Frequency regulation.
26、- Frequency regulation shall be 115%. 3.8.1 -3 A-C hamionic content shall be 13 percent maximum. wer. - Twenfy-eight (28) volts d-c, 80 watts under continucus rutating conditions 3*8a2 an %P- 100 watts intermittent for 2 hours, shall be obtained from Q three phase winding of the generator through O
27、selenium rectifier. 5 y: I -_ i PRDBLEM HARD COPY Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Ma I L-G -55 1 72 (Sig C) 3.8.2.1 Voltage regulation shall be 22 percent maximum.
28、 3.8.2.2 D-C Ripple voltage.- 13 volts, peak-to-peak maximum (includes interaction in engins generator), as measurod on an oscilloscope, Dumont Model %;A, or equal. Spark plugs furpished with each engine shall be capable of operation 3*9 during s+ t e period specified in 3.19 without degradation of
29、output performance. The muffler provided for the engine-generator assembly shall consist ot o two-section unit employing a silencer. The complete assembly shall be kept within the physica! dimensions of the acoustical case. (See 3.14). shall be provided on a front panel of the engine-generator mount
30、 assembly. These controls shall be remoted to a recessed “panel control area“ such that the controls shall not extend abova tho level of the outer dimensions of the housing roper (shall be flush with the draining. The function of each control shall be clearly labeled on the “control panel area“. ark
31、 lugs.- 3.10 Muffler assembly.- 3.11 Front panel controls.- Operating controls and other facilities as listed below, equipment panel). The controls shall be splashproof qn 8 the recessed panel shall be self- a. b. C. . d. e. f. g. 3.11.1 Fuel connection Output “ON - OFF“ switch. Speed adiust . Carbu
32、retor adiust Connector (for electrical outputs). Engine “ON - OFF“. Rope STARTER Controls, operation.- The equipment shull be capable of being started, adjusted, regulated and stopped by the control specified in 3.11, without the necessity of opening the acoustical case. 3.12 Structure.- The engine-
33、generator together with all other items, shall be installed on a structure, forming the engine-generatot assembly. 3. i3 Fuel line.- A fuel line assembly, 26 inches in length, shall be provided for connecting CAN , Gasoline, Gravity Feed kX-2380/ti, to the fuel-connector located on the front panel o
34、f the sngino-generator, after thu gasoline can is installed on the cuse for operation purposes. The assembiy shall include quick disconnect fittings to provide leak- proof connections when fuel line is in use. the engine-generotor assembly shal I be ot weather proof construction and shall embody cus
35、hioning material for absorbing vibration ocd noise generated during operation of the engine-generator. The case hall be constructed in two separate sections consisting of O bottom section for Fausing the engine-generator assombly and a seFara:r cover that will permit ihe removal of the engine-genera
36、tor for muintenance and overhaul purposes. Air inlets and exhaust eutlets including access doors, shall be provided which can be opened during operation without allowing noise to esca e from within the acoustical case. Gasketing 3.14 Case, Engine Generator CY-Z318( )/TPS-21.- The caso provided for h
37、ousing shall be provided for these openings against fie P d service conditions. i ./, PROBLEM HARD CgY Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.14.1 Instruction labels.-
38、Operational instruction labels shall overall: 18“ high, 16“ wide, 17 1/2“ long Maximum (Exterior dimensions fdude all projections) 3.18.2 Gasoline engine, generotor set.- Dimensions; overall: 15-3/4“ high, 15-1/4“ wide, 13-3/4“ deep. Maximum Weight: 58-1 /2 pounds, Maximum 3.19 Duty cycle operation.
39、- The engine-generator shall be capable of running not less than 10 consecutive duty cycles of 14 hours each, when using standard militar fuels service conditions specified in 4.7. 3.20 Temperature-Altitude.- terrain and in operating conditions, the following requirements shall be met: a. Operating.
40、- and lubricants as specified in 3.5.7 and 3.6, and providing electrical outputs un I er the With the generator set resting on relatively level (1) The engine-generator shall be fully operable e; generating rated frequency and voltages within 10 minutes from non-operating conditions and at all ambie
41、nt temperatures from -5 to 135OF at sea level and 85O F at 10, feet. After a 15 minute yoad (see 4.8.1 . 1 ) at sea level in an ambient temperoture of 135OF outside tho acoustical case; and not less than i/2 rated load at 10,000 feet above soa level, in an ambient temperature of such as handles, hin
42、ges, screws, etc, and necessary touch-up after mounting. The final paint film on type I surfaces shall be green color (olive drab), semigloss enamel matching a color chip provided by the procuring agency. (See 6.3.) 3.32 Interchangeability.- Like units, assemblies, subassemblies, and replaceable par
43、ts shall be physically and functionaly interchangeable, without modification of such items or of the qui ment. (See 4.23 ). Individual items shall not be hand-picked for fit or rformnce; !owever, matched pairs of sets, when permitted, may be interchangeable as suer Reliance shall not be placed on an
44、y unspecified dimension, rating, characteristics, etc . 3.33 Workmanshi .-Workinanship shall be of the highest grade throughout the manufacture d an assem y of this equipment and in accordance with the applicable portions of the following paragraphs 3.30.2 Process for welding . 3.30.3 Cleaning after
45、 welding. IC 3.11 Mechanical operation of control . 9 . .- i !.i ; !* t .A ,%“ 63 PROBLEM HA-RD COPY Copyright Communications - Electronics Command Provided by IHS under license with CRAINot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-G-55123 bL 9977906 00937Li
46、O Lt MIL-G-S5123(SigC) 4. QUALITY ASSURANCE PROVISIONS 4.1 Contractors reponsibi1ity.- The suFplier is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified, the ,dpp!ier may utiiire his own or any otherinspection facilities and services ac
47、ceptable to the Government. Inspection records of the examination and tests shall be kept complete and available to the Government as specified in the contract, The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necssz
48、ary to assure that supplies and services conform to prescribed requirements. 4.2 Classification of inspection.- Inspection shall be classified as follows: (a) Preproduction inspection (does not include preparation for delivery). (See 4.3) (b) Acceptance inspection. (1) Acceptance inspection of equip
49、ment before preparation for dellvery. (See 4.4 and 4.5). 4.3 Preproduction inspection,- This inspection will be performed by the Government unless otherwise specified in the contract. It shall consist of the preproduction inspection specified in table 1, the inspection specified in the subsidiary documents covering the items listed in 4.4, and the inspection specified for group A, group B and group C (see tables
