DLA A-A-52084 B-1998 TAPE LACING AND TYING ARAMID《芳纶纤维绳》.pdf

1、AMSC/NA FSC 4020A-A-52084B23 May 1998SUPERSEDINGA-A-52084A1 October 1997COMMERCIAL ITEM DESCRIPTIONTAPE, LACING AND TYING, ARAMIDThe General Services Administration has authorized the use of this commercial itemdescription as a replacement for Type V of MIL-T-43435B for all federal agencies.1. SCOPE

2、. This Commercial Item Description (CID) covers aramid tape, flat braided, for lacing and tying.2. CLASSIFICATION. Tape shall conform to the sizes and finishes as specified. (see 3.3 and 3.6)2.1 Size. The size shall be identified as 1, 2, 3, and 4. (see Table 1)2.2 Finish. The finish shall be identi

3、fied as A, B, C, F, and G. (see 3.6)3. SALIENT CHARACTERISTICS.3.1 Material. The yarn used in the fabrication of the tape shall be electrical grade, continuous filament,aramid (aromatic polyamide) yarn having high insulation resistance, high dielectric strength, and high resistanceto aging. The yarn

4、 shall be free from sizing, loading and other adulterants.3.2 Construction. The tape shall be a flat braid construction.3.3 Physical Requirements. Tape shall conform to the requirements of Table 1.TABLE 1: Tape, Lacing and Tying, AramidSize Width Thickness BreakingStrengthMin Max Min Max (Lbs, min)1

5、 .180 .220 .013 .019 852 .099 .121 .011 .017 503 .068 .083 .009 .015 354 .050 .061 .007 .013 253.4 Elongation. Maximum elongation at breaking strength shall not be greater than 40% when tested asspecified in Fed-Std-191 Method 4108. This test to be performed simultaneously with breaking strength.3.5

6、 Color. Unless otherwise specified (see 7.4), the color of the tape shall be natural. When other thannatural color tape is specified, the color shall be imparted by using spun dyed fiber or by dyeing the fiber or tapeprior to application of the finish. The inclusion of one or two dark marker threads

7、 of the same fiber as the basetape shall be allowed.INCH-POUNDBeneficial comments, recommendations, additions, deletions, clarifications, etc., and any other data which may improve thisdocument should be sent to: Defense Industrial Supply Center, ATTN.: DISC-BBEE, 700 Robbins Avenue, Philadelphia, P

8、A19111-5096Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-52084B23.6 Finish. A finish option shall be specified, in accordance with 3.6.1 through 3.6.5. Tape finishes shallnot contain any mercury or copper. All finishes shall be able to be used

9、freely in direct contact with insulated cableor wire.3.6.1 Finish A - Natural. No finish shall be added.3.6.2 Finish B - Microcrystalline fungicide wax. Tape shall be uniformly treated, and shall contain 15-32% wax by weight.3.6.3 Finish C - Synthetic rubber. Tape shall be uniformly impregnated with

10、 a synthetic rubber orelastomer finish. Treated tape shall contain 7-17% rubber by weight.3.6.4 Finish F - Silicone resin impregnated. Tape shall be uniformly impregnated, and shall contain 7-17% silicone resin material by weight.3.6.5 Finish G - Liquid nylon. Tape shall be uniformly coated with liq

11、uid nylon polymer, and shallcontain 4-14% of the material by weight.3.7 Knot Slip Resistance. (applicable to finishes C, F, and G only) Stress applied to a specimen madeby joining two ends of the braided tape with a square knot shall result in the breakage of the tape specimen ratherthan slippage or

12、 pulling out of the knot when tested as specified in Paragraph 5.2.2. Knot slip resistance is notapplicable to tapes which have finish A or B.3.8 Put-up. Unless otherwise specified, the tape shall be furnished on parallel wind spools (reels) oruniversal wind tubes (holders). Size 1 and 2 tapes shall

13、 be put-up in a minimum of 250 yard lengths, and size 3and 4 tapes shall be put-up in a minimum of 500 yard lengths. The tape shall be free from twists, lumps, orprojecting ends and shall be evenly wound so that each turn and layer is free from entanglement and twisting.There shall be no more than f

14、our pieces per reel or holder, and no piece shall be less than 50 yards in length.3.9 Breaking Strength Minimum breaking strength shall be as stated in Table 1 when tested as specifiedin Fed-Std-191 Method 4108.3.10 Fungus Resistance. No tape shall show visible growth (to the naked eye) of fungus on

15、 the surfaceof the test specimens when tested as specified in Fed-Std-191 Method 5760.3.11 Blocking. There shall be no visible damage or removal of the coatings on finish C, F and G tapeswhen tested as specified in Paragraph 5.2.3.3.12 Accelerated Aging. When specified (see 7.4), finish B, C, F and

16、G tapes shall show no evidenceof stiffness, brittleness, softness, or tackiness when tested as specified in Fed-Std-191 Method 5852, except that thespecimen shall be six inches in length by the full width of the tape.3.13 Identification. Tape shall be tagged with a label or ticket containing at leas

17、t the followinginformation: CID part number, National Stock Number, date of manufacture, and manufacturers name. Whenput-up or color is non-standard, the tag shall indicate the actual color or length.4. REGULATORY REQUIREMENTS.4.1 The offerer/contractor is encouraged to use recovered materials to th

18、e maximum extent practicable, inaccordance with paragraph 23.403 of the Federal Acquisition Regulation (FAR).Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-52084B35. QUALITY ASSURANCE PROVISIONS.5.1 Product Conformance. The products provided sha

19、ll meet the salient characteristics of thiscommercial item description, conform to the producers own drawings, specifications, standards, and qualityassurance practices and be the same product offered for sale in the commercial market. The government reservesthe right to require proof of such confor

20、mance5.2 Inspection Requirements5.2.1 Determination of Percentage of Finish. The percentage of finish B, C, F, and G impregnatingmaterials on the respective type tapes shall be determined during processing, by the manufacturer, by weighing anidentical sample of tape or yarn (see 3.5), before and aft

21、er the impregnating process. The test specimen shall be aminimum of 30 yards of tape or 120 yards of yarn as applicable. Weight (Length per pound) shall be determinedin accordance with Method 4010 of Fed- Std-191. The percentage of finish shall be calculated as follows:Percent Finish A-B x 100BWhere

22、: A = Length per pound of untreated tape or yarn, as applicable.B = Length per pound of treated tape or yarn, as applicable.5.2.2 Determination of Knot Slip Resistance. The knot slip resistance of the tapes shall be determined inaccordance with Fed-Std-191 Method 4108, except as modified herein. The

23、 test specimens shall be cut in half andthen the two halves shall be firmly tied together with a square knot. The two protruding ends at the knot shall becut so that one-half inch protrudes. The specimen shall be aligned so that the knot is approximately halfwaybetween the clamps. The machine shall

24、be operated until the knot slips or pulls out or the specimen breaks at or inproximity to the knot. Breaks closer than 1/2 inch of the jaws shall be discarded. Five good readings shall beobtained. If knot slippage is obtained on only one of five readings, an additional specimen shall be tested and i

25、f agood reading is obtained, the reading indicating knot slippage shall be discarded.5.2.3 Determination of Blocking. Ten turns of the tape shall be wound on a one-quarter inchdiameter clean metal mandrel under a two pound tension and the end secured through holes in the mandrel. Eightturns of tape

26、shall then be wound on top of the first layer under the two pound tension and the ends secured asbefore. The wound mandrel shall then be placed in a temperature controlled oven at 70 + 1o C for two hours, andin such a manner that no part of the specimen comes in contact with the surface of the oven.

27、 The specimen shallthen be removed and cooled at room temperature. After cooling, the outer layer shall be unwound and examinedfor evidence of damage to the coatings due to adhesion between layers of turns. The first layer shall be examinedwhile still in place for similar evidence of adherence and d

28、amage.6. PACKAGING.6.1 Preservation, packing and marking shall be as specified in the contract or order.7. NOTES.7.1 Intended use. The tape is intended for lacing and tying electrical wire and cable bundles. Tape withfinish C provides the best knot holding characteristics. Aramid provides good resis

29、tance to fluids and fuels, and isnot combustible. Useful temperature range of aramid tape is -100 F to 500 F.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-52084B47.2 Part Identification Number (PIN). The PIN shall consist of the basic CID numbe

30、r, followed by thefinish code letter from 3.6, followed by the size number from Table 1.PIN Example: AA52084- A-2Size from Table 1Finish from 3.6Basic CID number7.3 Source of Documents.7.3.1 Federal Standards are available from the Superintendent of Documents, U.S. Government PrintingOffice, Washing

31、ton DC, 20402.7.4 Ordering Data.a. Title, Number and Date of this Commercial Item Description.b. Size and Finish required. (see 3.3 and 3.6)c. Color, if other than specified. (see 3.5)d. Put-up if other than specified. (see 3.8)e. When accelerated aging is required. (see 3.12)f. Selection of applica

32、ble levels of packaging and packing. (see 6)7.5 National Stock Numbers (NSNs). The following is a list of NSNs assigned which correspond to thisCID. This list may not be indicative of all possible NSNs associated with the CID.NSN Type Size Finish Color4020-00-178-8650 5 1 A Natural4020-00-198-9452 5

33、 2 A Natural4020-01-397-6501 5 2 F Natural4020-01-208-7645 5 2 C Natural4020-00-185-0890 5 3 A Natural4020-00-936-3027 5 3 F Natural4020-01-075-2602 5 3 C Natural4020-01-095-6581 5 3 B Natural4020-01-115-8937 5 3 G Natural4020-01-015-3110 5 4 B NaturalMILITARY INTERESTS:CUSTODIANS: CIVIL AGENCY COORDINATING ACTIVITIES:Army - GL GSA - FSSNavy - SHAir Force - 99 PREPARING ACTIVITY:DLA - ISREVIEWERS:Army - AR, CR, CR4, MD, MI (Project 4020-0400)Navy - AS, MC, OSAir Force - 82Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-