1、 INCH-POUND MIL-DTL-24643/46F 1 October 2009 SUPERSEDING MIL-DTL-24643/46E 22 August 2002 DETAIL SPECIFICATION SHEET CABLE, ELECTRICAL, -20 C TO +90 C, TYPE LS2WAU This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the
2、product described herein shall consist of this specification sheet and MIL-DTL-24643. Construction, Watertight First - Copper conductor, tin-coated, ASTM B286, 22 AWG - 7 strands. Second - Separator may be used at manufacturers option where required to provide free-stripping insulation. Third - Ther
3、moset insulation. Nominal wall thickness of 0.024 inch: wall thickness may vary from nominal as necessary, in order for the completed cable to meet the specified electrical requirements. Telephone identification code shall be applied by Method 3. Fourth - Two conductors cabled together with a nomina
4、l lay of 1 inches to form a pair. Fifth - The specified number of pairs (see table I) shall be cabled together with a lay in accordance with 3.4.4 of MIL-DTL-24643. Cabling sequence shall be consecutive, starting with no. 1, from the center outward. Fillers may be used as necessary to form a firm we
5、ll-rounded assembly. Sixth - An optional binder. Seventh - Braided shield of tin-coated copper. Eighth - An optional binder. Ninth - Cross-linked polyolefin jacket. Minimum average wall thickness of 0.060 inch. AMSC N/A FSC 6145 Provided by IHSNot for ResaleNo reproduction or networking permitted wi
6、thout license from IHS-,-,-MIL-DTL-24643/46F TABLE I. Details. Overall diameter Military part no. M24643/46 Type and size Number of pairs min. (inch) max. (inch) -01UO LS2WAU-40 40 1.320 1.370 REQUIREMENTS: Qualification required. INSPECTION: Basic Electricals: Conductor resistance (ohms/1000 feet a
7、t 25 C, max.) 17.71 Voltage withstand (volts, root mean square, min.) Conductor to conductor 2500 Conductor to overall shield 2500 Insulation resistance (megohms/1000 feet, min.) Conductor to conductor 500 Conductor to overall shield 500 Conductor continuity No failure Shield continuity No failure J
8、acket flaws No failure Group A: Visual and dimensional No failure Capacitance Mutual capacitance, at1 kilohertz (KHz) (pF/ft, max.) 30 Watertightness (see MIL-DTL-24643 for limits of water leakage) No failure Group B: Cold bending cable No failure Thermoset proof test (percent, max.) Insulation 50 J
9、acket (when tested at 200 C) 50 Drip (951C) Physicals (unaged) Insulation (extruded) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24643/46F Tensile strength (lb/in2, min.) 700 Elongation (percent, min.) 150 Jacket (cable) Tensile strengt
10、h (lb/in2, min.) 1300 Elongation (percent, min.) 160 Tear (lb/in thickness, min.) 35 Group C: Physicals (aged) air oven Insulation (extruded) Tensile strength (percent of unaged, min.) 75 Elongation (percent of unaged, min.) 75 Jacket (cable) Tensile strength (percent of unaged, min.) 60 Elongation
11、(percent of unaged, min.) 60 Permanence of printing (jacket) (cycles, min.) 125 Heat distortion (percent of unaged, max.) 30 Cable fill (sealant) removability No failure Shrinkage No failure Shield (conformance to material, construction and coverage) No failure Surface transfer impedance Milliohms p
12、er meter (max.) 700 EMP response (dB, min.) 60 Group D: Flame propagation (cable) No failure Qualification Inspection: Qualification inspection shall include basic electricals; groups A, B, C, and D; plus the following: Aging and compatibility (cable) (1255 C) No failure Abrasion resistance (jacket)
13、 (scrapes, min.) 75 Acid gas equivalent (percent, max.) Jacket 2 Fillers 2 Insulation 18Shield insulation 2 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24643/46F 4 Halogen content (percent, max.) Jacket 0.2 Fillers 0.2 Insulation 0.2Imm
14、ersion (jacket) Tensile strength (percent of unaged, min.) 50 Elongation (percent of unaged, min.) 50 Smoke index (max.) Jacket 25 Fillers 45Insulation 45 Toxicity index (max.) Jacket 5 Fillers 5Insulation 1.5Durometer (jacket) - Type A (hardness, min.) 80 Weathering (jacket) No failure Electrical m
15、oisture absorption No failure UNIT ORDERING LENGTHS: Type and size Feet (nominal) LS2WAU-40 1000 CHANGES FROM PREVIOUS ISSUE: Marginal notations are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes. Custodians: Preparing Activity: Army
16、 MI Navy SH Navy SH (Project 6145-2008-050) Review Activities: Army AR, AV, CR Navy CG, EC DLA CC NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at http:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
