1、 INCH-POUND MIL-DTL-24643/43F 1 October 2009 SUPERSEDING MIL-DTL-24643/43E 22 August 2002 DETAIL SPECIFICATION SHEET CABLE, ELECTRICAL, -20 C TO +90 C, 600 VOLTS, TYPE LS2SJ, LS3SJ, AND LS4SJ This specification is approved for use by all Departments and Agencies of the Department of Defense. The req
2、uirements for acquiring the product described herein shall consist of this specification sheet and MIL-DTL-24643. Construction, Non-Watertight First - Copper conductor, tin-coated, ASTM B286, 14 AWG and smaller. Coated or uncoated copper, ASTM B286 or ASTM B8, Class B stranding, for 12 AWG sizes and
3、 larger. Second - Separator may be used at manufacturers option where required to provide free-stripping insulation. Third - Thermoset insulation (see table I for dimensions). Standard identification code applied by Method 3. Fourth - Two, three, or four conductors (see table I), as required, shall
4、be cabled together with a lay in accordance with table I. Fillers may be used as necessary to form a firm well-rounded assembly. Fifth - An optional binder. Sixth - Braided shield of tin-coated copper. Seventh - An optional binder. Eighth - Cross-linked polyolefin jacket. Minimum average wall thickn
5、ess of 0.035 inch. AMSC N/A FSC 6145 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24643/43F TABLE I. Details. Conductors Overall diameter Military part no. M24643/43 Type and size No. ASTM B286 ASTM B8 Insulation wall thickness min. avg. (
6、inch) Lay of conductors max. (inch) Min. (inch) Max. (inch) Conductor resistance max. (ohms) -01UO LS2SJ-22 2 22 19 0.016 1 0.261 0.275 16.54 -02UO LS2SJ-20 2 20 19 0.016 1 0.273 0.290 10.16 -03UO LS2SJ-18 2 18 19 0.016 1 0.295 0.310 6.47 -04UO LS2SJ-16 2 16 19 0.016 2 0.309 0.325 5.02 -05UO LS2SJ-1
7、4 2 14 19 0.016 2 0.337 0.350 3.17 -06UO LS2SJ-12 2 12 (Class B) 0.024 3 0.417 0.430 1.72 -07UO LS2SJ-11 2 10 (Class B) 0.025 3 0.447 0.460 1.085 -08UO LS2SJ-9 2 9 (Class B) 0.031 4 0.525 0.545 0.86 -09UO LS2SJ-7 2 7 (Class B) 0.032 4 0.600 0.615 0.54 -10UO LS3SJ-22 3 22 19 0.016 1 0.271 0.285 16.54
8、 -11UO LS3SJ-20 3 20 19 0.016 1 0.284 0.300 10.16 -12UO LS3SJ-18 3 18 19 0.016 1 0.308 0.325 6.47 -13UO LS3SJ-16 3 16 19 0.016 2 0.323 0.340 5.02 -14UO LS3SJ-14 3 14 19 0.016 2 0.353 0.370 3.17 -15UO LS3SJ-12 3 12 (Class B) 0.024 3 0.440 0.455 1.72 -16UO LS3SJ-9 3 9 (Class B) 0.031 4 0.594 0.620 0.8
9、6 -17UO LS4SJ-20 4 20 19 0.016 1 0.303 0.320 10.16 -18UO LS4SJ-16 4 16 19 0.016 2 0.346 0.360 5.02 -19UO LS4SJ-14 4 14 19 0.016 3 0.380 0.395 3.17 NOTE: Size designation does not correlate to conductor size for all types and sizes. REQUIREMENTS: Qualification required. INSPECTION: Basic Electricals:
10、 Conductor resistance (ohms/1000 feet at 25 C, max.) See table I Voltage withstand (volts, root mean square, min.) Conductor to conductor 1200 Conductor to shield 600 Insulation resistance (megohms/1000 feet, min.) Conductor to conductor 500 2 Provided by IHSNot for ResaleNo reproduction or networki
11、ng permitted without license from IHS-,-,-MIL-DTL-24643/43F Conductor to shield 500 Conductor continuity No failure Shield continuity No failure Jacket flaws No failure Group A: Visual and dimensional No failure Group B: Thermoset proof test (percent, max.) Insulation 50 Jacket (when tested at 200 C
12、) 50 Physicals (unaged) Insulation (extruded) Tensile strength (lb/in2, min.) 700 Elongation (percent, min.) 150 Jacket (cable) Tensile strength (lb/in2, min.) 1300 Elongation (percent, min.) 160 Tear (lb/in thickness, min.) 35 Group C: Physicals (aged) air oven Insulation (extruded) Tensile strengt
13、h (percent of unaged, min.) 75 Elongation (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 Surface tra
14、nsfer impedance Milliohms per meter (max.) 700 EMP response (dB, min.) 60 Shield (conformance to material, construction and coverage) No failure 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24643/43F Group D: Flame propagation (cable) No
15、 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) (scrapes, min.) 75 Acid gas equivalent (percent, max.) Jacket 2 Fillers 2 Insulatio
16、n 18Halogen content (percent, max.) Jacket 0.2 Fillers 0.2Insulation 0.2 Immersion (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 (jack
17、et) - Type A (hardness, min.) 80 Weathering (jacket) No failure Electrical moisture absorption No failure UNIT ORDERING LENGTHS: Type and size Feet (nominal) LS2SJ, LS3SJ and LS4SJ all sizes 1000 CHANGES FROM PREVIOUS ISSUE: Marginal notations are not used in this revision to identify changes with r
18、espect to the previous issue due to the extent of the changes. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24643/43F 5 Custodians: Preparing Activity: Army MI Navy SH Navy SH (Project 6145-2008-047) Review Activities: Army AR, AV, CR Na
19、vy 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-,-,-
