1、i MILITARY SPECIFICATION TERMINALS, CASUALTY POWER SYSTEMS, GENE= SPECIFICATION FOR 1. SCOPE MIL-T-24 381 (SHIPS) 21 September 1972 1.1 This specification covers the general requirements for alternating current (a.c.) arld direct current (d.c.) casualty power system terminals and associated guards,
2、enclosure assemblies, switches, terminal blocks and canvas covers. 2. APPLICABLE DOCUMENTS 2.1 The following documents of the issue in effect on date of invitation for bids or request for proposal form a part of the specification to the extent specified herein. SPECIFICATIONS FEDERAL QQ-2-325 - Zinc
3、 Coating, Electrodeposited: Requirements for. MILITARY MIL-M-14 - Molding Plastics and Molded Plastic Parts, Thermosetting. MIL-V-173 - Varnish, Moisture and Fungus Resistant (For Treatment of Communica- MIL-S-901 - Shock Tests, H.I. (High Impact); Shipboard Machinery, Equipment and MIL-E-917 - Elec
4、tric Power Equipment, Basic Requirements (Naval Shipboard Use). MIL-D-1000 - Drawings, Engineering and Associated Lists. MIL-D-1000/2 - Drawings, Engineering and Associated Lists. MIL-P-15024 - Plates, Tags and Bands for Identification of Equipment. MIL-P-15024/5 - Plates, Identification. MIL-P-1503
5、7 - Plastic Sheet, Laminated, Thermosetting, Glass-Cloth, Melamine-Resin. MIL-T-24381/1 - Terminal, Casualty Power, Bulkhead 200-AmpereI 500-Volt, MIL-1-45208 - Inspection System Requirements. tions Electronic, and Associated Equipment). Systems, Requirements for. Three-phase, Alternating Current, S
6、ymbol Number 1025. (See supplement 1 for list of applicable specification sheets.) STANDARDS MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes. MIL-STD-108 - Definitions of and Basic Requirements for Enclosures for MIL-STD-167 - Mechanical Vibration of Shipboard Equi
7、pment. MIL-STD-202 - Test Methods for Electronic and Electrical Component Parts. Electric and Electronic Equipment. (Copies of specifications, standards, drawings, and publications required by suppliers in connection with specific procurement functions should be obtained from the procuring activity
8、or as directed by the contracting officer.) the extent-i- Unless otherwise indicated, the issue in effect on date of invitation for bids or request for proposal shall apply. 2.2 Other ublications. The following documents form a part of this specification to NATIONAL BUREAU OF STANDARDS Handbook H-28
9、 - Screw Thread Standard for Federal Services. (Application for copies should be addressed to the Superintendent of Documents, Government Printing Office, Washington, D.C. 20402.) - ._ -0 -r. THIS DOCUMENT CONTAINS .- /- PAGES , FSC 5940 Provided by IHSNot for ResaleNo reproduction or networking per
10、mitted without license from IHS-,-,-MIL-T-24381 (SHIPS) UNIFORM CLASSIFICATIOE COMMITTEE (Application for copies should be addressed to the Uniform Classification Committee, AMBRICAN NATIONAL STANDARD INSTITUTE, INC. (Application for copies should be addressed to the American National Standards Inst
11、itute, 3. REWJIRPIENTS Uniform Freight Classification Rules Room 1106, 222 South Riverside Plaza, Chicago, Illinois 60606.) B46.1 1962 - Surface Texture. Inc., 1430 Broadway, New York, New York 10018.) 3.1 S cification sheets. The individual item requirements shall be as specified In the event of an
12、y herein and conflict between the requirements of this specification and the individual specification sheets, the latter shall govern. accordancexthe applicable specification sheets. 3.2 Sample for first article ins ction. Prior ahall be examrnedd?estee and not greater than 1/16 inch larger than the
13、 bolt diameter for mounting bolts larger than 3/4 inch. (d) Angles - As specified on the specification sheet. 3.4.5 Sharp corners and edges. Sharp corners and edges shall be rounded and buffed smooth. 3.4.6 3.4.7 Enclosures. The degree of enclosure, when applicable, shall be as specified in Drilled
14、and tapped holes shall be slightly countersunk. Drilling, countersinkinq and tapping of metal parts shall be done before any finish is applied. the individual specifhation sheet. ance with MIL-STD-108. Definitions for degree of enclosure shall be in accord- 3.5 Performance requirements. 3.5.1 Shock.
15、 Casualty power terminals, terminal blocks, switches, and enclosure assemblies emwithstand without damage or loosening of parts, the HI Shock test specified in 4.5.4. 3.5.2 Vibration. Casualty power terminals, terminal blocks, switches, Fards, aad enclosure assemblies shall withstand, without damage
16、 or the loosening af parts, the vibration test of 4.5.3. switches are-tHaccordance with 4.5.5, there shall be no evidence of base matal corrosion of parts, no impairment of the legibility of marking or no interference with the electrical or mechanical performance of the parts. of insulating material
17、 wdls, tekinal blocks or switches are tested as specified in 4.5.1. and between current carrying parts and non-current carrying parts shall be not less than 200 megohms, when terminals, terminal blocks or switches are tested as specified in 4.5.6. specifie in-rewbe no evidence of mechanical damage.
18、dielectric withstanding voltage shall be as specified in 3.5.4 and the insulation resistance shall conform to 3.5.5. 3.5.7 Im act When specified on the applicable specification sheet, welded or brazed parts of teaand associated parts shall withstand the impact test specified in 4.5.7, 3.5.8 Waterti
19、ht bond. When specified on the applicable specification sheet, the terminal or ad part shall withstand the test of 4.5.8 with no signs of leakage through the molded assembly. 3.5.3 Salt s ra After terminals, terminal blocks, enclosure assemblies, guards and 3.5.4 Dielectric withstandin volta e. Ther
20、e shall be no damege, arcing, or breakdoun 3.5.5 Insulation resistance. The insulation resistance between current carrying parts 3 5 6 Tem erature c clin When terminals, terminal blocks or switches are tested a? After the test, the 3.6 Surface textures. Suriace textures specified on the applicable s
21、pecification sheet shall be in accordance with ANSI B46.1 - 1962. 3.7 Finish. All terminal parts shall have surfaces which are not warped, cracked, chipped, omtered either initially or as a result of the tests specified herein. type of finish shall be as specified on the applicable specification she
22、et. Ths 3.8 Platinq paintinp. 3.8.1 Platin All machining or manufacturing procedures shall be complete before plating or fd; applied. sheet shall conform to QQ-2-325. Zinc plating when required on the applicable specification 3.8.2 Paintinq. Enclosures shall be painted in accordance with MIL-E-917.
23、3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-3.9 Uarkinq. 3.9.1 Marking shall appear on the terminals and associated parts as indicatedon the specification sheets. shall be shown. Manufacturers identification shall be the prime manufacturer. Mar
24、king shall be stamped, molded, depressed or embossed as specified on the specification sheet. Military part number (for example M24381/1-01) and symbol number 3.9.1.1 Molded parts may be marked in accordance with the applicable Superseded drawing where the molds have been built with identification m
25、arkings of the superseded drawing, except that the marking of this specification shall be used when the molds require reworking or replacing. When marked with these superseded drawing numbers, the applicable military pa,rt numbers shall be rubber stamped on the parts. Other information as indicated
26、on the applicable specification sheet and not contained by the mld for the superseding drawing, shall also be rubber stamped on the 3.9.2 Identification late. An identification plate in accordance with MIL-P-15024 ihall ba prepared for the bhad terminal for mounting on the bulkhead. plate ehall $e a
27、s shown on the applicable specification sheet. aevere service as defined in MIL-P-15024/5. shall be furnished. also be furnished. 3.11 Drawin s category E . Casualty power terminals, terminal blocks, enclosure assemblies, guards and swmes s all be tested in accordanqe with method 101, test condition
28、 B of MIL-STD-202. The terminals, terminal blocks, enclosure assemblies, guards and switches shall then be examined for base-metal corrosion of parts, impairment of the legibility of marking of the parts, and interference with the electrical and mechanical functioning of terminals. I 4.5.6 Insulatio
29、n resistance. Insulation resistance shall be measured between all current-carrying parts of terminals and between current-carrying parts and noncurrent carrying parts in accordance with method 302, condition C, of MIL-STD-202 to determine conformance with 3.5.5. parts shall hermined E: subjecting sa
30、mple terminals, terminal blocks or guards to direct impact blows of a hammer sufficient to completely bend, distort, or crush the brazed or welded pieces without failure of the braze or weld. 4 5.8 Waterti ht (when a licable, see 3.5.8). Terminals shall be tested to determine ifdwatertght JmEz betwe
31、en terminal rod and body. assembly shall be subjected to water pressure of 6.65 pounds per square inch to determine conformance with 3.5.8. shall be subjected to the submersible enclosure test of MIL-STD-108. 4.5.7 Im act (when a licable, see 3.5.7). The adequate strength of welded or brazed One end
32、 of the molded 4.5.8.1 Submersible test. When specified on the specification sheet, the terminal 4.6 Ins ction of re aration for delivery, The packaging, packing, and marking of tsrminals -aGdwlT inspected to determine conformance with section 5 herein. 6 Provided by IHSNot for ResaleNo reproduction
33、 or networking permitted without license from IHS-,-,-MIL-T-24381 (SHIPS) 5. PREPARATION FOR DELIVERY (The preparation for delivery requirements specified herein apply only for direct Government procurement. requirements listed in Section 2, see 6.3.) For the extent of applicability of the preparati
34、on for delivery 5.1 Domestic shipment and early equipment installation. 5.1.1 Preservation and acka in Preservation and packaging which may be the suppliers commercial praxce- sufficient to afford adequate protection against corrosion, deterioration and physical damage during shipment from the suppl
35、y source to the using activity and until early installation. 5.1.2 Packin . Packing shall be accomplished in a manner which will insure acceptance by common cadt the lowest rate and will afford protection against physical or machanical damage during direct shipment from the supply source to the usin
36、g activity for early instal- lation. Classification Rules or other carrier regulations, as applicable to the mode of transportation, and may conform to the suppliers commercial practice. Shipment marking information shall be provided on interior packages and exterior s ipping containers in accordanc
37、e with the contractors commercial practice. The information shall include nomenclature, Federal stock number or manufacturers part number, contract or order number, contractors name, and destination. The shipping containers or method of packing shall conform to the Uniform Freight 5.1.3 -Ma. 5.2 Dom
38、estic Shi ment and stora e or overseas Shi ment The requirements and levels of preservation and*ncpd zd marking ,.pa;kinE, and markitg. Casualty power terminals, associated parts, repair parts, an tec nica pu lications s all be preserved and packaged level A or C, packed level A, B, or C, and marked
39、 in accordance with MIL-E-17555.) 6. NOTES 6.1 Ordering data. Procurement documents should specify the following: (a) Title, number, and date of this specification. (b) Title, number, and date of applicable specification sheet and Military part (c) Preservation and packaging, packing, and marking in
40、structions if other than number. as specified in 5.1 (see 5.2). 6.2 First article inspe;tion. reserves tZght to waive t e requirement for samples for first article inspection as to those bidders offering a product which has been previously procured or tested by the Government, and that bidders offer
41、ing such products, who wish to rely on such production or test, must furnish evidence with the bid that prior Government approval is presently appropriate for the pending procurement, 6.3 Sub-contracted material and arts. The preparation for delivery requirements of referenced documents listed in Se
42、c-nk not apply when material and parts are procured by the supplier for incorporation into the equipment and lose their separate identity when the equipment is shipped. Invitations for bid should provide that the Government 6.4 Mana ement control s stem docuhents. The following management control system document skncluded on?konn 1660 : (a) MIL-1-45208 (see 4.1.1). Preparing activity: Navy - CH (Project 5940-NS55) -. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
