NAVY MIL-S-22128 A-1962 SQUIB ELECTRIC MARK 2 MODS《 MARK 2 MODS电雷管起爆药包》.pdf

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1、20 November 1362 SUPERSEDING MIL-S-22128 (Nord) 31 July 1959 MILITARY SPECIFICATION SQUIB, ELECTRIC, MARK 2 MODS CARTRIDGE, IMPULSE, MARK 45 MOD O This specification has been approved by the Bureau of Naval SJeapons, Department of the Navy. lo SCOPE. 1.1 Scope. This specification covers the Squib, M

2、k 2 Mods referred to herein as the squib. 2. APPLICABLE DOCUMENTS. 2.1 The following documents of the issue in effect on date of invitation for bids form a part of this specification to the extent specified herein: SPECIFICATIONS Federal PPP-B -621 STANDARDS Boxes, Wood, Nailed and Lock- Corner . Mi

3、 1 it ar y MIL -STD -10 5 Sampling Procedures and Tables for Inspection by Attributes. IFSC 134.01 I. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-22128A (WEP) MIL-STD-129 MIL-STD-350 MIL-STD-353 MIL-STD-414 DRAWINGS Bureau of Naval Weapons

4、(Code Ident 10001) LD 252961 LD 252968 LD 256003 LD 267888 SK 378738 SK 378739 SK 378942 657306 Marking for Shipment and Storage. Jolt Test for Use in Production of Fuzes. Transportation Vibration Test for Use in Production of Fuzes. Sampling Procedures and Tables for Inspection by Variables. Shippi

5、ng (Packing) Condi tion (For 100 Squibs Mk 1 and 2 Mods). Pres erved (Packing) Cond it ion (For 4 Squibs Mk 1 and 2 Mods). Ammunition Component Box Mk 2 Mod O. List of Drawings, Subassemblies, Parts, and Specifications for Squib, Electric Mk 2 Mods. Firing Circuit. Foil Switch Assembly and Details.

6、Squib Output Test Assembly and Details. Squib, Mk 2 Mod O and 1 Assembly. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-22128A (WEP) 3.2 Complia

7、nce with documents. The squib shall be fabri- cated and assembled in accordance with LD 267888 including all drawings, specifications and other documents listed thereon and shall meet all requirements of this specification. 3.3 Performance and product characteristics. (See figure 14 3.3.1 Electrical

8、 continuity and resistance. The electri- cal circuit of each squib shall be continuous and shall meet the requirements of DWG 657306. 3.3.2 Dielectric characteristics. The resistance between the connected lead wires and the. case shall be not less than 50 megohms. 3.3.3 No-fire sensitivity. The squi

9、b shall not fire when energized with 1.00 ampere, 24 volts direct current (dc) for a minimum of five seconds. 3.3.4 Firing time. When subjected to 5.0 plus or minus 0,15 amperes dc at plus 70 plus or minus 5 degrees Fahrenheit (F), the squib shall fire in 0.0056 second or less. 3.3.5 Output limits.

10、The squib shall be fired by 5.0 plus or minus 0.15 amperes dc at plus 70 plus or minus 5 degrees F and shall produce a cavity with the capacity of 3 to 15 milliliters in the foam polystyrene block. (See SK 378942.) test of 4.6.1. Thereafter, it shall meet the requirements of 3.3.1 and 3.3.2 and shal

11、l function in accordance with 4.5.4. 3.3.6 Jolt resistance. The squib shall withstand the jolt 3.3.7 Vibration resistance. The squib shall withstand the vibration test of 4.6.2. Thereafter, it shall meet the re- quirements of 3.3.1 and 3.3.2 and shall function in accordance with 4.5,4. 3.3.8 Waterti

12、ghtness. The squib shall be watertight and shall show no evidence of leakage when tested in accordance with 4.6.3 and thereafter shall function in accordance with 4.5.4. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL- S-2 2 128A (WEP ) 3.3.9

13、Workmanship. The squib exterior shall be free from flux, oil, grease, explosive, foreign material and shall be free from visible blemishes. 4. QUALITY ASSURANCE PROVISIONS. 4.1 The supplier is responsible for the performance of all inspection requirements as specified herein. wise specified, the sup

14、plier may utilize his own or any other inspection facilities and services acceptable to the Govern- ment. Inspection records of the examination and tests shall be complete and available to the Government as specified in the contract or order. The Government reserves the right to perform any of the i

15、nspections set forth in this specification where such inspections are deemed necessary to assure that supplies and services conform to the prescribed requirements. acceptance shall rest with the cognizant Government repre- sentative. 4.2 Sampling. Except as otherwise specified herein, the following

16、documents shall govern the establishment of sampling plans, and procedures for inspection, acceptance and rejection. Except as other- 4.1.1 Acceptance. Authority and responsibility for (a) Standard MIL-STD-105 for attributes. (b) Standard MIL-STD-414 for variables. 4.3 Preproduction sample. The prep

17、roduction sample shall conform to requirements of 3.1. quirements shall be cause for rejection of the preproduction sample and shall also be cause for cancellation of the con- tract or order. Failure to meet these re- 4.4 Lot. Unless otherwise specified in the contract or 4.5 Acceptance tests. (See

18、figure 2.) 4.5.1 Electrical continuity and resistance test. Every Each squib that does not meet the requirement order, the lot size shall be 10,000 squibs (see 6.2). squib shall be subjected to an electrical continuity test using a resistance testing current of less than 10 milli- amperes dc. of 3.3

19、.1 shall be rejected. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S -22 128A (WEP) 4.5.2 Dielectric test. A dielectric test shall be con- ducted for verification of conformance to the requirement of 3.3.2. The test potential shall be either

20、 1000 plus or minus 1GG volts, 60 cycle alternating current (ac) or 500 plus or minus 50 volts dc. The test potential shall be applied for not less than one second. Sampling shall be in accordance with Standard MIL-STD-105 , Acceptable Quality Level (AQL) 1.0 percent defective. 4.5.3 No-fire sensiti

21、vity test. The squib shall be tested Sampling to determine compliance with requirements of 3.3.3. shall be in accordance with Standard MIL-STD-105, AQL 0.065 percent defective. The samples used for this test shall not be delivered to the Government as part of production. 4.5.4 Firing time test. The

22、firing time test shall be conducted in accordance with figures 1, 2, 6, and 13, Techni- cal Memorandum (TM) 1055, and BuOrd DWGS SK 378738, and SK 378739. A sample shall be selected in accordance with Standard MIL-STD-414, Variability Unknown, AQL 1.0 percent defective. In addition, failure to meet

23、the requirements of 3.3.4 or occurrence of one or more duds or misfires shall be cause for rejection of the lot represented. 4.5.5 Output limits test. The squib shall meet the re- quirements of 3.3.5. Test equipment shall be in accordance with SK 378942. A sample shall be selected in accordance with

24、 Standard MIL-STD-414, Variability Unknown, AQL 1.0 per- cent defective. In addition, if one or more squibs fail to fire, the lot represented shall be rejected. 4.6 Preproduction and product verification tests. These tests shall be conducted on the preproduction sample (see figure 2), and on each re

25、jected lot resubmitted for accept- ance. In addition, the Government reserves the right any time during production to test random samples of squibs for product verification. (See figure 2,) 4.6.1 Jolt test. The squib shall be subjected to the jolt test in accordance with Standard MIL-STD-350 and the

26、reafter shall meet the requirements of 3.3.6. 4.6.2 Vibration test. The vibration test shall be con- ducted in accordance with Standard MIL-STD-353. The squib shall be secured in a suitable rigid-mounting fixture, and the leads taped to it. Thereafter, the squib shall meet the requirements of 3.3.7.

27、 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-22128JWEP) 4.6.3 Watertightness testo The squibs shall be subjected to a cycle of four pressure conditions for a period of three to five minutes each. continuously. dures (b) and (e) are as fol

28、lows: The cycle shall be repeated 21 times The conditions (a), (c), (d), (f) and proce- (a) Submerge squibs in plus 160 plus or minus 10 degrees F water at absolute pressure of approxi- mately 58 inches of mercury. (b) (c) (d) Drain or pump water from chamber. Reduce chamber absolute pressure to not

29、 more than 5 inches of mercury, Fill chamber with tap water to an absolute pres- sure of approximately 58 inches of mercury. Temperature differential between tap water and hot water, condition (a), shall be not more than 90 degrees F. Drain or pump water from chamber. Reduce chamber absolute pressur

30、e to not more than 5 inches of mercuryo (e) (f) Thereafter, the squibs shall function in accordance with 4.5,4. rence of one or more duds or misfires shall be cause for re- jection of the lot. 4.7 Visual examination. The squib shall be visually in- spected for workmanship, and conformance to preserv

31、ation, packaging, packing and marking requirements of this specifi- cation, Failure to meet the requirements of 3.3.8 or occur- 5. PREPARATION FOR DELIVERY. (See 6.2. ) 5.1 Preservation and packaging. 5.1.1 Level A. In addition to detailed requirements herein and in applicable referenced documents,

32、Level A preservation and packaging shall be in accordance with the Code of Federal Regulations 49 CFR 71-780 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-22128A (WEP) 5.1.1.1 Preservation. Preserved packaging of four squibs shall be in acc

33、ordance with LD 2529.68. 5.1.1.2 Unit packaging. The shipping packaging condition for 100 squibs shall be in accordance with LD 252961. 5.2 Packing. 5.2.1 Level A. In addition to detailed requirements herein and in applicable referenced documents, Level A packing shall be in accordance with the Code

34、 of Federal Regulations 49 CFR 71-78. 5.2.2 Packing. One hundred boxes, each containing 100 squibs (for a total of 10,000 squibs), packaged in accordance with 5.1.1.2 shall be packed in an Ammunition Components Box Mk 2 Mod O, LD 256003, or in a nailed wooden box conforming to the requirements of Sp

35、ecification PPP-B-621. 5.3 Marking for shipment and storage. 5.3.1 Standard marking. Unless otherwise specified in applicable documents, standard marking shall be in accordance with Standard MIL-STD-129. 5.3.2 Special marking. Special marking shall conform to the requirements of the Code- of Federal

36、 Regulations 49 CFR 71-78. 6. NOT and, while in process, in safety lockers and chests if in loading rooms, or in adequate ready or service magazines located in accordance with intra- plant distances when outside of loading rooms. For Navy managed explosives loading plants, the provisions of the Arme

37、d Services Explosives Safety Board covering quantity- distance relations for explosives will apply. 6.4.6 Proper care must be exercised at all times to pro- tect personnel from accidents, fires or explosions, and to limit damage to equipment and loading areas. In this connec- tion, the precautionary

38、 measures in the following paragraphs should be observed. Employ properly proportioned and properly located protective barricades, screens or shields at all required points. 6.4.6.1 6.4.6.2 Keep only minimum limited quantities of explosives and completed or partially loaded parts present at each sta

39、ge of operation. 6.4.6.3 Keep explosives and explosive parts in approved covered receptacles with covers in place when material is not being taken out of or put into the receptacles. Where neces- sary, receptacles should be conductive to ground.electrostatic charges. Protect operations from electros

40、tatic charges by effectively grounding all machinery, equipment, and fixtures; and, where necessary, employ suitable grounded conductive coverings for floors, work benches and tables, and workers conductive shoes. Workers clothing of a type to minimize the accumulation of static charges should be em

41、ployed. Fabrics such as silk and nylon, which promote static generation should 6.4.6.4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-22128A (WEP) be avoided. bracelets for workers should be employed where operations are conducted with items w

42、hich are unusually sensitive to initi- ation by static electricity. explosives, tracer mixtures, and low-energy type electric primers, detonators and squibs. should have the free ends of lead wires bared and twisted together, and be packed in relatively small groups wrapped,in bare non-insulated alu

43、minum foil or other uncoated metal foil. During assembly and processing operations such sensitive electric items should be short circuited by clips or other devices until installed with safety shunt in the final device. Additional precautions for these items should include mechani- cal shielding to

44、contain or deflect fragments and blast, also electrical shielding of these items from induced electric currents generated by sources such as lightning, static, radiations from communications apparatus, radar, or high fre- quency heat apparatus, etc. Where necessary for safety, humidity of work rooms

45、 should be appropriately increased, as required to lessen electrostatic effects but without inducing excessive moisture absorption by any of the components of the item being loaded. electric current originating from equipment such as soldering irons, heaters, switches, wiring, motors, lights, test i

46、nstru- ments, etc., by suitable insulation, grounding separation or shielding. Such electric sources may initiate explosives by heat, sparks, arcs, or due to completing an electric circuit through an electric primer, detonator, or squib. may be inadvertently completed, for example, from a defective

47、electric soldering iron through a grounded contact. electric type primers, detonators or squibs provided with wire leads should have the free ends of the wires bared and twisted together to short circuit each unit, except when in process of assembly into a finished item. removable short circuiting c

48、lips, or other devices should be employed during manufacturing operations involving electric primers, detonators or squibs. safety footwear, gloves, goggles, respirators, and impregnated garments to protect personnel against burns, poisoning and associated industrial hazards. Additional grounding de

49、vices such as grounded Such items include initiating The latter types of items . 6.4.6.5 Protect all explosive operations from effects of Circuits All Where practicable, 6.4.6.6 Enforce, where necessary, the wearing of suitable 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-S-2212A 13 m 9799706 0301988 8 MIL-S-22128A (WEP) 6.4.6.7 Allo