1、 INCH-POUND MIL-DTL-24643/3E 1 October 2009 SUPERSEDING MIL-DTL-24643/3D 22 August 2002 DETAIL SPECIFICATION SHEET CABLE, ELECTRICAL, -20 C TO +90 C, 600 VOLTS, TYPES LSSHOF, LSDHOF, LSTHOF, AND LSFHOF This specification is approved for use by all Departments and Agencies of the Department of Defens
2、e. The requirements for acquiring the product described herein shall consist of this specification sheet and MIL-DTL-24643. Construction, Non-Watertight First - Copper conductor, coated or uncoated (see table I for size). Second - Separator may be used at manufacturers option where required to provi
3、de free-stripping insulation. Third - Thermoset insulation (see table I for wall thickness). Standard identification code applied by Method 1 or Method 3. NOTE: A colored tape may be used on Size 23 and larger. If identification Method 1 is used, insulation color shall be black. Fourth - An optional
4、 reinforcement on Type LSSHOF, Size 23 and larger. Fifth - The specified number of conductors (see table I) shall be cabled together with a left-hand lay as required for the completed cable to meet the twisting and bending endurance tests. On multi-conductor types, fillers may be used as necessary t
5、o form a firm well-rounded assembly; and the cabling sequence shall be consecutive. Sixth - An optional binder. Seventh - Cross-linked polyolefin jacket (see table I for thickness). AMSC N/A FSC 6145 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MI
6、L-DTL-24643/3E 2TABLE I. Details. Conductor size Overall diameter Military part no. 24643/3 Type and size Navy std. AWG Insulation thickness min. avg. (inch) Number of conductors Jacket wall thickness min. avg. (inch) min. (inch) max. (inch) Roller dia. for bending endurance (max.) (inch) Conductor
7、resistance (ohms) Insulation resistance (megohm) -01UN LSSHOF-3 16 (Class M) 0.031 1 0.030 0.195 0.210 NA 4.28 300 -02UN LSSHOF-23 7 (Class K) 0.040 1 0.040 0.440 0.460 NA 0.546 300 -03UN LSSHOF-60 60 (304) 0.050 1 0.050 0.570 0.600 NA 0.187 250 -04UN LSSHOF-150 150 (760) 0.070 1 0.050 0.830 0.870 N
8、A 0.0747 200 -05UN LSSHOF-200 200 (988) 0.070 1 0.050 0.940 0.980 NA 0.0575 200 -06UN LSSHOF-250 250 (1254) 0.070 1 0.070 1.035 1.085 NA 0.0453 150 -07UN LSSHOF-500 500 MCM (Class K) 0.090 1 0.070 1.380 1.450 NA 0.0234 100 -08UN LSSHOF-650 650 MCM (Class G) 0.100 1 0.070 1.540 1.610 NA 0.0174 100 -0
9、9UN LSSHOF-800 800 (4033) 0.100 1 0.070 1.600 1.670 NA 0.0141 100 -10UN LSDHOF-3 16 (Class K) 0.031 2 0.040 0.405 0.425 1.3 4.36 300 -11UN LSDHOF-4 14 (Class K) 0.031 2 0.040 0.440 0.460 1.4 2.73 250 -12UN LSDHOF-6 12 (Class K) 0.031 2 0.040 0.490 0.510 1.5 1.72 200 -13UN LSDHOF-9 9 (90) 0.031 2 0.0
10、50 0.540 0.570 1.7 1.24 200 -14UN LSDHOF-14 14 (140) 0.040 2 0.050 0.675 0.705 2.1 0.802 200 -15UN LSDHOF-23 7 (Class K) 0.040 2 0.050 0.820 0.860 3.0 0.560 150 -16UN LSDHOF-30 5 (Class K) 0.050 2 0.050 0.920 0.960 3.5 0.351 150 -17UN LSDHOF-83 83 (418) 0.070 2 0.070 1.390 1.450 7.0 0.139 150 -18UN
11、LSDHOF-250 250 (1254) 0.070 2 0.100 2.000 2.100 0.0462 100 -19UN LSDHOF-400 400 (2052) 0.090 2 0.100 2.400 2.500 0.0283 100 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24643/3E 3TABLE I. Details - Continued. Conductor size Overall diamete
12、r Military part no. 24643/3 Type and size Navy std. AWG Insulation thickness min. avg. (inch) Number of conductors Jacket wall thickness min. avg. (inch) min. (inch) max. (inch) Roller dia. for bending endurance (max.) (inch) Conductor resistance (ohms) Insulation resistance (megohm) -20UN LSTHOF-3
13、16 (Class K) 0.031 3 0.040 0.430 0.450 1.4 4.36 300 -21UN LSTHOF-4 14 (Class K) 0.031 3 0.040 0.460 0.480 1.4 2.73 250 -22UN LSTHOF-6 12 (Class K) 0.031 3 0.050 0.520 0.550 1.7 1.72 200 -23UN LSTHOF-9 9(90) 0.031 3 0.050 0.570 0.600 1.8 1.24 200 -24UN LSTHOF-14 14 (140) 0.040 3 0.050 0.720 0.750 2.3
14、 0.802 200 -25UN LSTHOF-23 7 (Class K) 0.040 3 0.050 0.860 0.900 3.5 0.560 150 -26UN LSTHOF-42 42 (209) 0.070 3 0.070 1.200 1.250 4.5 0.277 150 -27UN LSTHOF-150 150 (760) 0.070 3 0.100 1.740 1.820 0.0762 125 -28UN LSTHOF-250 250 (1254) 0.070 3 0.100 2.140 2.240 0.0462 100 -29UN LSTHOF-400 400 (2052)
15、 0.090 3 0.100 2.680 2.800 0.0283 100 -30UN LSTHOF-500 500 MCM (Class K) 0.090 3 0.100 2.920 3.100 0.0230 100 -31UN LSTHOF-600 600 MCM (Class G) 0.100 3 0.100 2.980 3.150 0.0200 100 -32UN LSFHOF-3 16 (Class K) 0.031 4 0.040 0.460 0.480 1.4 4.36 300 -33UN LSFHOF-4 14 (Class K) 0.031 4 0.040 0.520 0.5
16、50 1.6 2.73 250 -34UN LSFHOF-9 9(90) 0.031 4 0.050 0.630 0.660 1.8 1.24 200 -35UN LSFHOF-42 42 (209) 0.070 4 0.070 1.300 1.380 4.1 0.277 150 -36UN LSFHOF-60 60 (304) 0.070 4 0.070 1.430 1.510 4.5 0.191 150 -37UN LSFHOF-133 133 (684) 0.070 4 0.100 1.920 2.000 0.0847 125 Provided by IHSNot for ResaleN
17、o reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24643/3E REQUIREMENTS: Qualification required. INSPECTION: Basic Electricals: Conductor resistance (ohms/1000 feet at 25 C, max.) See table I Voltage withstand (volts, root mean square, min.) Type LSSHOF only: Conductor to g
18、round 2000 Types LSDHOF, LSTHOF, LSFHOF only: Conductor to conductor (Sizes 3 to 9 inclusive) 2000 Conductor to conductor (Sizes 14 to 600 inclusive) 2500 Insulation resistance (megohms/1000 feet, min.) Type LSSHOF only: Conductor to ground See table I Types LSDHOF, LSTHOF, LSFHOF only: Conductor to
19、 conductor See table I Conductor continuity No failure Group A: Visual and dimensional No failure Group B: Thermoset proof test (percent, max.) Insulation 50 Jacket (when tested at 200 C) 50 Twisting and bending endurance At 75 C, cycles, min. 6000 At minus 302 C (cycles, min.) 2000 NOTE: Tests to b
20、e performed on all sizes of LSDHOF, LSTHOF, and LSFHOF, excepting LSDHOF-400, LSTHOF-150, LSTHOF-250, LSTHOF-400, LSTHOF-500, LSTHOF-600, LSFHOF-133. Test not required for LSSHOF (see table I for roller sizes). Physicals (unaged) Insulation (extruded) Tensile strength (lb/in2, min.) 700 Elongation (
21、percent, min.) 150 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24643/3E 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 (ex
22、truded) Tensile strength (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 (insulation, Method 1 only) (cycles, min.) 25 Permanence of printing (jacket) (cyc
23、les, min.) 125 Heat distortion (percent of unaged, max.) 30 Shrinkage 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 fa
24、ilure Abrasion resistance (jacket) (scrapes, min.) 75 Acid gas equivalent (percent, max.) Jacket 2 Fillers 2 Insulation 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 5 Pr
25、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24643/3E Smoke index (max.) Jacket 25 Fillers 45 Insulation 45Toxicity index (max.) Jacket 5 Fillers 5Insulation 1.5 Durometer (jacket) - Type A (hardness, min.) 80 Weathering (jacket) No failure
26、Electrical moisture absorption No failure UNIT ORDERING LENGTHS: Type Size Feet (nominal) LSSHOF 23 2000 LSSHOF 60 through 250 1000 LSSHOF 500 through 800 500 LSDHOF 6 2000 LSDHOF 9 and 14 1500 LSDHOF 23 through 83 1000 LSDHOF 250 and 400 500 LSTHOF 6 2000 LSTHOF 9 and 14 1500 LSTHOF 23 through 150
27、1000 LSTHOF 250 through 600 500 LSFHOF 4 2000 LSFHOF 9 1500 LSFHOF 42 and 60 1000 LSFHOF 133 500 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. 6 Provided by IHSNot for ResaleNo re
28、production or networking permitted without license from IHS-,-,-MIL-DTL-24643/3E 7 Custodians: Preparing Activity: Army MI Navy SH Navy SH (Project 6145-2008-008) 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-,-,-
