1、 INCH-POUND MIL-DTL-24643/41D 1 October 2009 SUPERSEDING MIL-DTL-24643/41C 22 August 2002 DETAIL SPECIFICATION SHEET CABLE, ELECTRICAL, -20 C TO +90 C, TYPE LS1SAU 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, Non-Watertight First - Copper conductor, coated or uncoated, ASTM B286, Size 20 7 strands. Second - Separator may be used at manufacturers option where required to provide free-stripping insulation. T
3、hird - Thermoset insulation. Nominal wall thickness of 0.015 inch. Wall thickness may vary from nominal as necessary in order for completed cable to meet the specified electrical requirements. Fourth - Braided shield of 34 or 36AWG, coated or uncoated copper. Braid angle of 30 to 35 degrees; minimum
4、 coverage of 85 percent. Fifth - Shield insulation of two polyester tapes, outer tape sealed. An alternate shield insulation may consist of one polyester tape, plus an extruded jacket of a suitable transparent material, minimum average thickness of the transparent material 0.003 inch. The standard i
5、dentification code shall be applied by Method 2. Sixth - The specified number of singles (see table I) shall be cabled together 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 fir
6、m well-rounded assembly. Seventh - An optional binder. Eighth - Cross-linked polyolefin jacket. Minimum average wall thickness of 0.063 inch. AMSC N/A FSC 6145 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24643/41D TABLE I. Details. Overal
7、l diameter Military part no. M24643/41 Type and size Number of conductors Min. (inch) Max. (inch) -01UN LS1SAU-44 44 0.910 0.990 REQUIREMENTS: Qualification required. INSPECTION: Basic Electricals: Conductor resistance (ohms/1000 feet at 25 C, max.) 10.71 Voltage withstand (volts, root mean square,
8、min.) Conductor to component shield 2000 Component shield to component shield 500 Insulation resistance (megohms/1000 feet, min.) Conductor to component shield 500 Component shield to component shield 100 Conductor continuity No failure Shield continuity No failure Group A: Visual and dimensional No
9、 failure Capacitance, 1 kilohertz (KHz) (pF/ft., max.) 72 Group B: Thermoset proof test (percent, max.) Insulation 50 Jacket (when tested at 200 C) 50 Physicals (unaged) Insulation (extruded) Tensile strength (lb/in2, min.) 700 Elongation (percent, min.) 150 Jacket (cable) Tensile strength (lb/in2,
10、min.) 1300 Elongation (percent, min.) 160 Tear (lb/in thickness, min.) 35 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24643/41D Group C: Physicals (aged) air oven Insulation (extruded) Tensile strength (percent of unaged, min.) 75 Elong
11、ation (percent of unaged, min.) 75 Jacket (cable) Tensile strength (percent of unaged, min.) 60 Elongation (percent of unaged, min.) 60 Permanence of printing (jacket) (cycles, min.) 125 Heat distortion (percent of unaged, max.) 30 Shrinkage No failure Shield (conformance to material, construction a
12、nd coverage) No failure Cable sealant removability No failure 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 resi
13、stance (jacket) (scrapes, min.) 75 Acid gas equivalent (percent, max.) Jacket 2 Fillers 2 Insulation 18Shield insulation 2 Halogen content (percent, max.) Jacket 0.2 Fillers 0.2Insulation 0.2Immersion (jacket) Tensile strength (percent of unaged, min.) 50 Elongation (percent of unaged, min.) 50 Smok
14、e index (max.) Jacket 25 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24643/41D 4 Fillers 45 Insulation 45Toxicity index (max.) Jacket 5 Fillers 5Insulation 1.5 Durometer (jacket) - Type A (hardness, min.) 80 Weathering (jacket) No failu
15、re Electrical moisture absorption No failure UNIT ORDERING LENGTHS: Type and size Feet (nominal) LS1SAU-44 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
16、 Activity: Army MI Navy SH Navy SH (Project 6145-2008-045) 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-,-,-
