NAVY MIL-I-24391 C (1)-1991 INSULATION TAPE ELECTRICAL PLASTIC PRESSURE-SENSITIVE《带电塑料压力灵敏的绝缘带》.pdf

1、O INCH-POUND MIL-I-24391C - AMENDMENT 1 5 August 1991 MILITARY SPECIFICATION INSULATION TAPE, ELECTRICAL, PLASTIC PRESSURE-SENSITIVE This amendment forms a part of Military Specification MIL-I-24391C, dated 9 March 1990, and is approved for use by all Departments and Agencies of the Department of De

2、fense. PAGE 5 3.4.1: Delete and substitute: ll3.4.1 Markins of the rolls. Each roll of tape shall be marked with numerals or letters indicatins the month and year of manufacture. Manufacturing date information shall appear in one of the following locations: (1) inside the core, (2) on core end surfa

3、ce, (3) n the side (edge) of the tape adjacent to the core. II 3.4.1.1: Add as new paragraph. 4 “3.4.1.1 Markins of the cores. The manufacturerls name and 0 designation of product shall be stamped or printed on the inside of the core. In addition when acquisition is from a distributor/rebrander, the

4、 distributorls name and designation of product shall be stamped or printed on the inside of the core. Alternatively (at the option of the distributor/rebrander) it shall be printed on a rectangular label which can be affixed to the inside of the core. Such label shall not exceed the width of the cor

5、e or 1/2 the inside circumference of the core and shall not obscure the original manufacturers name and product designation. II AMSC N/A FSC 5970 DISTRIBUTION STATEMENT A. Approved for public release: distribution is unlimited. Page 1 of 5 Provided by IHSNot for ResaleNo reproduction or networking p

6、ermitted without license from IHS-,-,-! , MIL-I-24391C AMENDMENT 1 PAGE 6 TABLE II, Under “Property columnvt for “Shelf storage (2 years) II, delete Units and Requirements entries and substitute the following: IShall conform to: Adhesion to backing, Unrolling at 23OC, and Breaking strength. No exces

7、sive adhesive flow on sides, no telescoping greater than 3/32 inch, no gapping greater than 3/64 inch. II PAGE 8 4.4.1: Delete and substitute: “4.4.1 Lot. For the purposes of inspection sampling, a lot shall consist of all tape, of the same type, width and color produced in one facility using the sa

8、me production processes, equipment, and materials, and being offered for delivery at one time . II 4.4.1.1: Add as new paragraph. l4.4.1.1 Qualitv conformance inspection samplins. As a minimum, the contractor shall randomly select sample quantities of rolls of tape from each lot in accordance with T

9、ables III, IV, and V and inspect them in accordance with 4.4.2.1, 4.4.2.2, 4.4.2.3 and 4.4.3. If one or more defects are found in any sample, the entire lot shall be rejected. The contractor has the option of screening 100 percent of the lot for the defective characteristic(s) or providing a new lot

10、 which shall be inspected in accordance with the sampling plan contained herein.“ PAGE 9 TABLE III: Delete and substitute: ITABLE III. Sample size for appearance and construction examination Lot size Sample size 2- 16 - 26 - 91 - 151 - 281 - 501 - 1201 - 15 25 90 150 280 500 1200 3200 2 3 5 6 7 9 11

11、 13 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-*Y- 9 MIL-I-24391C AMENDMENT 1 3201 - over PAGE 11 15“ TABLE IV: Delete and substitute: “TABLE IV. Sample size for examination of dimension, workmanship, and appearance. Lot size sample size 1 - 2

12、5 26 - 50 51 - 90 91 - 150 151 - 280 281 - 500 501 - 1200 1201 - 3200 3201 - 10000 10001 - over 4.4.2.3: Delete and substitute: 3 5 6 7 10 11 15 18 22 29“ “4.4.2.3 Examination of the assembled roo1 tape for defect in workmanship and appearance. The assembled roll tape selected in accordance with tab

13、le IV shall be examined for defects in L workmanship and appearance as follows: Examinations Defects Workmanship Adhesive coating not evenly and smoothly applied over entire area of one side of backing; any bare spots or lumps. Appearance . Roll telescoped, uneven, presence of liner, adhesive side e

14、xposed on roll. Roll not tightly wound, gaps in adjacent turns. Roll contains more than two splices. 11 PAGE 12 4.4.2.4, Add to the end of this paragraph the following: IlIf one or more defects are found during examination of packaging, the entire lot of containers shall be rejected. The contractor

15、has the option of screening 100 percent of the containers for the defective characteristic(s) or providing a new lot which shall be inspected in accordance with the sampling plan !. 3 i Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-I-2439LC (1)

16、 59 9999906 048bOLO 4 MIL-I-24391C AMENDMENT 1 contained herein. It PAGE 14 TABLE V: Delete and substitute: TABLE V. SamDle size for quality conformance tests. Lot size Sample size 2 - 50 5 51 - 500 16 501 - 35000 35 35001 - over 40“ PAGES 14 AND 15 TABLE VI: Delete and substitute: “TABLE VI. Instru

17、ctions for testins (sample unit). - Specifications P Characteristic or Property Results determined as Require- ments applicable to individual unit - Pass or fail Requi- rement Test methods Numer i - cally to nearest . o1 pound Per inch width 25 volts 4.6.2 X Breaking strength Table II Table II 4.6.3

18、 X Dielectric breakdown after 70% exposure Adhesive 4.6.8 X . o1 pound per Table II inch width Table II 4.6.8 Megohms X High humidity insulation resistance Flammability Visual Seconds - X - Table 4.6.9 - U Visual examination for excessive adhesive flow and telescoping of 3/32 inch maximum.“ 4 Provid

19、ed by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-PAGE 24 6.6: Delete in its entirety. 6.6.1: Delete in its entirety. TABLE VIII: Delete in its entirety. 6.6.2: Delete in its entirety. PAGE 25 TABLE IX: Delete in its entirety. 6.6.3: Delete in its entirety.

20、TABLE X: Delete in its entirety. Preparing activity: Navy - SH (Project 5970-1089) Custodians: Army - R Navy - SH Air Force - 11 8 Review activities: Army .- EA Navy - EC, OS DLA - GS NASA - DS User activities: Army - ME Navy - MC, YD, CG 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-