1、 INCH-POUND MIL-DTL-24643/14F 1 October 2009 SUPERSEDING MIL-DTL-24643/14E 22 August 2002 DETAIL SPECIFICATION SHEET CABLE, ELECTRICAL, -20 C TO +105 C, 1000 VOLTS, TYPE LSSSGU This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for a
2、cquiring the product described herein shall consist of this specification sheet and MIL-DTL-24643. Construction, Watertight with Circuit Integrity First - Copper conductor, coated or uncoated (see table I for size). Second - Thermoset insulation (white) extruded or taped (see table I for thickness).
3、 Third - An optional binder. Fourth - 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-,-,-MIL-DTL-24643/14F 2TABLE I. Details. Conductor size Military part no. M24643/14 Type a
4、nd size Navy std AWG Cable overall diameter max. (inch) Insulation thickness min. avg. (inch) Conductor resistance max. (ohms) Jacket thickness min. avg. (inch) Insulation resistance (megohms) Accelerated service loading amperes -01UN LSSSGU-50 3 (Class C) 0.520 0.035 0.209 0.040 160 240 -02UN LSSSG
5、U-75 1 (Class C) 0.602 0.035 0.132 0.040 135 315 -03UN LSSSGU-100 0 (Class D) 0.669 0.040 0.105 0.050 125 375 -04UN LSSSGU-200 0000 (Class D) 0.872 0.050 0.0525 0.050 90 580 -05UN LSSSGU-300 300 MCM (Class D) 1.001 0.060 0.0370 0.050 80 750 -06UN LSSSGU-400 400 (127) 1.118 0.060 0.0268 0.050 70 925
6、07UN LSSSGU-650 650 MCM (Class D) 1.371 0.060 0.0170 0.060 60 1300 -08UN LSSSGU-800 800 MCM (Class D) 1.485 0.060 0.0138 0.060 50 1550 -09UN LSSSGU-1000 1000 MCM (Class D) 1.620 0.060 0.0110 0.060 40 - -10UN LSSSGU-1600 1600 MCM (Class B) 2.010 0.080 0.00693 0.075 40 - -11UN LSSSGU-2000 2000 MCM (C
7、lass B) 2.210 0.080 0.00555 0.075 35 - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24643/14F REQUIREMENTS: Qualification required. INSPECTION: Basic Electricals: Conductor resistance (ohms/1000 feet at 25 C, max.) See table I Voltage with
8、stand (volts, root mean square, min.) Conductor to ground 5000 Insulation resistance (megohms/1000 feet, min.) Conductor to ground See table I Conductor continuity No failure Group A: Visual and dimensional No failure Watertightness (see MIL-DTL-24643 for limits of water leakage) No failure Group B:
9、 Cold bending cable No failure Thermoset proof test (percent, max.) Insulation (extruded insulation only) 50 Jacket (when tested at 200 C) 50 Drip (951 C) Zero Physicals (unaged) Insulation (extruded) Tensile strength (lb/in2, min.) 700 Elongation (percent, min.) 150 Jacket (cable) Tensile strength
10、lb/in2, min.) 1300 Elongation (percent, min.) 160 Tear (lb/in thickness, min.) 35 Gas flame (1 hour) No failure Group C: Physicals (aged) air oven Jacket (cable) Tensile strength (percent of unaged, min.) 60 Elongation (percent of unaged, min.) 60 3 Provided by IHSNot for ResaleNo reproduction or n
11、etworking permitted without license from IHS-,-,-MIL-DTL-24643/14F Permanence of printing (jacket) (cycles, min.) 125 Heat distortion (percent of unaged, max.) 30 Cable fill (sealant) removability No failure Shrinkage No failure Group D: Flame propagation (cable) No failure Qualification Inspection:
12、 Qualification inspection shall include basic electricals; groups A, B, C, and D; plus the following: Cold working (minus 202 C) No damage Gas flame (3 hours) No failure Accelerated service (Sizes 50 800) (see table I for load current) No failure Aging and compatibility (cable) (1255 C) No failure A
13、brasion 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 Smoke index
14、 (max.) Jacket 25 Fillers 45Insulation 45 Toxicity index (max.) Jacket 5 Fillers 5Insulation 1.5Durometer (jacket) - Type A (hardness, min.) 80 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24643/14F 5 Weathering (jacket) No failure Elect
15、rical moisture absorption (extruded insulations only) No failure UNIT ORDERING LENGTHS: Type Size Feet (nominal) LSSSGU 50 through 100 1500 LSSSGU 200 through 1000 1000 LSSSGU 1600 and 2000 500 CHANGES FROM PREVIOUS ISSUE: Marginal notations are not used in this revision to identify changes with res
16、pect to the previous issue due to the extent of the changes. Custodians: Preparing Activity: Army MI Navy SH Navy SH (Project 6145-2008-062) 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-,-,-
