1、 INCH-POUND MIL-DTL-24643/17F 1 October 2009 SUPERSEDING MIL-DTL-24643/17E 22 August 2002 DETAIL SPECIFICATION SHEET CABLE, ELECTRICAL, -20 C TO +105 C, 1000 VOLTS, TYPE LSFSGU 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, extruded or taped (see table I for thickness). Third
3、- Optional glass braid. Fourth - Optional covering (unless required by 3.3.5 of MIL-DTL-24643). Fifth - The four conductors shall be cabled together in accordance with 3.4.4 of MIL-DTL-24643. Fillers may be used as necessary to form a firm well-rounded assembly. Standard identification code applied
4、by Method 1, 3, or letter identification code applied by Method 5. If identification Method 1 is used, outer surface to be printed shall be black. Cabling sequence shall be consecutive. Sixth - An optional binder. Seventh - Cross-linked polyolefin jacket (see table I for thickness). AMSC N/A FSC 614
5、5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24643/17F 2TABLE I. Details. Military part no. M24643/17 Type and size Conductor size AWG Cable overall diameter max. (inches) Insulation thickness min. avg. (inch) Jacket thickness min. avg.
6、(inch) Conductor resistance (ohms) Insulation resistance (megohms) Accelerated service loading ampere -01UN LSFSGU-3 16 (Class B) 0.447 0.018 0.030 4.3 500 -02UN LSFSGU-4 14 (Class B) 0.513 0.018 0.040 2.68 500 -03UN LSFSGU-9 10 (Class B) 0.630 0.015 0.040 1.08 500 -04UN LSFSGU-23 7 (Class B) 0.890
7、0.018 0.050 0.543 500 115 -05UN LSFSGU-50 3 (Class C) 1.050 0.035 0.050 0.210 200 185 -06UN LSFSGU-75 1 (Class C) 1.240 0.035 0.050 0.134 175 250 -07UN LSFSGU-100 0 (Class D) 1.358 0.035 0.060 0.106 160 295 -08UN LSFSGU-150 000 (Class D) 1.625 0.040 0.060 0.0674 135 400 -09UN LSFSGU-200 0000 (Class
8、D) 1.820 0.050 0.060 0.0536 125 465 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24643/17F REQUIREMENTS: Qualification required. INSPECTION: Basic Electricals: Conductor resistance (ohms/1000 feet at 25 C, max.) See table I Voltage withsta
9、nd (volts, root mean square, min.) Conductor to conductor Sizes 3 through 9 3000 Sizes 23 and larger 5000 Insulation resistance (megohms/1000 feet, min.) Conductor to conductor See table I Conductor continuity No failure Group A: Visual and dimensional No failure Watertightness (see MIL-DTL-24643 fo
10、r limits of water leakage) No failure Abrasion resistance scrapes minimum No damage (Sizes 40 and smaller) (extruded insulation only) Crack resistance (Sizes 3 through 100) (extruded insulation only) No damage Group B: Cold bending cable No failure Thermoset proof test (percent, max.) Insulation (ex
11、truded insulations only) 50 Jacket (when tested at 200 C) 50 Drip (951C) ZeroPhysicals (unaged) Insulation (extruded insulations only) 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 thi
12、ckness, min.) 35 Gas flame (1 hour) No failure 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24643/17F Group C: Physicals (aged) air oven Jacket (cable) Tensile strength (percent of unaged, min.) 60 Elongation (percent of unaged, min.) 60
13、 Permanence of printing (insulation, Method 1 only) (cycles, min.) 25 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 Inspecti
14、on: 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 23 and larger) (see table I for load current) No failure Aging and compatibility (cable) (1255 C) No
15、 failure 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 S
16、moke index (max.) Jacket 25 Fillers 454 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24643/17F 5 Insulation 45 Toxicity index (max.) Jacket 5 Fillers 5Insulation 1.5Durometer (jacket) - Type A (hardness, min.) 80 Weathering (jacket) No fai
17、lure Electrical moisture absorption (extruded insulations only) No failure UNIT ORDERING LENGTHS: Type Size Feet (nominal) LSFSGU 3 2500 LSFSGU 4 and 9 2000 LSFSGU 23 and 50 1500 LSFSGU 75 through 150 1000 LSFSGU 200 500 CHANGES FROM PREVIOUS ISSUE: Marginal notations are not used in this revision t
18、o identify changes with respect to the previous issue due to the extent of the changes. Custodians: Preparing Activity: Army MI Navy SH Navy SH (Project 6145-2008-021) 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-,-,-
