1、AMSC N/A FSC 6145 INCH-POUND MIL-DTL-24640/13E 8 November 2011 SUPERSEDING MIL-DTL-24640/13D 22 August 2002 DETAIL SPECIFICATION SHEET CABLE, ELECTRIC, -20 TO +105 C, 600 VOLTS, LIGHTWEIGHT, MULTI-PAIR, 26 AWG, TYPES 2XSXO AND 2XSXOW This specification is approved for use by all Departments and Agen
2、cies of the Department of Defense. The requirements for acquiring the product described herein shall consist of this specification sheet and MIL-DTL-24640. Construction, Non-Watertight (2XSXO) and Watertight (2XSXOW) First - 19-strand, tin-coated copper conductor, 26 AWG. Second - Component wires sh
3、all be SAE-AS81044/12, except identification shall be in accordance with the codes and methods of MIL-DTL-24640. Testing shall be in accordance with the component wire ratings and requirements listed on this specification sheet. Conformance testing shall be in accordance with SAE-AS81044 prior to ca
4、bling. Third - Two conductors, one black and one white, twisted together. The pitch shall be inch. Fourth - Optional binder tape. Fifth - Braided shield of 38 AWG tin-coated copper strands. Braid coverage shall be no less than 90 percent determined in accordance with WC-27500. Sixth - Shield insulat
5、ion of two polyester tapes or a polyester tape and extruded jacket. Identification codes applied using Method 2. Seventh - Four shielded pairs shall be cabled together. Cabling sequence shall be consecutive. Fillers may be used, as necessary, to form a round cable. Eighth - Optional binder tape. Nin
6、th - Braided shield, tin-coated copper strands. Braid must be constructed to meet surface transfer impedance requirements as listed herein. Tenth - Optional binder tape. Eleventh - Cross-linked polyolefin jacket (see table I for thickness). NOTE: Manufacturers identification tape or thread is requir
7、ed (see 3.7.3). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24640/13E 2 TABLE I. Construction details. PIN M24640/13 Type number Number of pairs Jacket thickness (inch) (min.) Cable diameter (inch) Cable weight (pounds per 1000 feet) (max
8、.) (min.) (max.) -01UO -02UO 2XSXO-4 2XSXOW-4 4 4 0.038 0.038 0.333 0.350 0.359 0.390 101.0 147.0 REQUIREMENTS: Qualification required. Construction details: See table I. Component wire: The component wire shall be in accordance with SAE-AS81044 and shall be tested in accordance with the following w
9、ire ratings and additional requirements. Temperature rating 150 C (302 F) (max.) conductor temperature Voltage rating 600 volts (root mean square) at sea level Accelerated aging Oven temperature, 3002 C (5723.6 F) for 6 hours Blocking 1502 C (3023.6 F) Flammability 30 seconds (max.) 3.0 inches (max.
10、) No flaming of tissue paper Humidity resistance 5000 megohms for 1000 feet (min.) insulation resistance after humidity exposure Dielectric test (100% test) Primary insulation Impulse test - 6.0 kV (peak) or 3 kHz spark test - 1.5kV root mean square Component wire Impulse test - 8.0 kV (peak) or 3 k
11、Hz spark test - 5.5kV root mean square Insulation resistance 5000 megohms for 1000 feet (min.) Life cycle Oven temperature, 2002 C (3923.6 F) for 168 hours Physical properties of primary insulation Tensile strength 2500 lb/in2(min.) Elongation 150 percent (min.) Shrinkage 0.125 inch (max.) at 3002 C
12、 (5723.6 F) Surface resistance 500 megohms inches (min.), initial and final readings Thermal shock Oven temperature, 1502 C (3023.6 F) Maximum change in measurement 0.060 inch Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24640/13E 3 Wet di
13、electric test 2500 volts (root mean square) Wrap test Mandrel wrap test required INSPECTION: Basic Electricals: Conductor resistance (ohms/1000 feet at 25 C, max.) 44.24 Voltage withstand minimum (volts, root mean square) Conductor and shield 2000 Conductor to conductor and shield Not applicable Shi
14、eld to shield 200 Component shield to overall shield 500 Insulation resistance (megohms/1000 feet, min.) Conductor to shield 2500 Shield to shield (component shield only) 100 Shield to shield (component shield to overall shield) 100 Conductor and shield continuity No failure Jacket flaws No failure
15、Group A: Visual and dimensional No failure Capacitance: Mutual capacitance (at 1 MHz, picofarads/foot (pF/ft), max.) Not applicable Capacitance unbalance (percent, max.) Not applicable Characteristic impedance (at 1 MHz, ohms) Not applicable Watertightness (type 2XSXOW only) No failure (see table IX
16、 of MIL-DTL-24640 for limits of water leakage) Weight No failureGroup B: Cold bending No failure Drip (type 2XSXOW only) No failure Cross-link proof test (percent, max.) Jacket 50 Tear (lb/in thickness, min.) 35 Physicals (unaged) Jacket Provided by IHSNot for ResaleNo reproduction or networking per
17、mitted without license from IHS-,-,-MIL-DTL-24640/13E 4 Tensile strength (lb/in2, min.) 1300 Elongation (percent, min.) 160 Attenuation (at 3 MHz, dB/100 feet, max.) Not applicable Gas flame (1 hour) Not applicable Group C: Physicals (aged), air oven Jacket Tensile strength (percent of unaged, min.)
18、 60 Elongation (percent of unaged, min.) 60 Permanence of printing (conductor insulation, cycles, min.) Not applicable Permanence of printing (jacket, cycles, min.) 125 Heat distortion (percent of unaged, max.) 30 Cable sealant removability (type 2XSXOW only) No failure Shrinkage No failureSurface t
19、ransfer impedance Milliohms per meter (max.) 700 EMP response (dB, min.) 60 Group D: Flame propagation No failure Qualification Inspection: Qualification inspection shall include basic electricals; groups A, B, C, and D; plus the following: Aging and compatibility (cable) No failure Acid gas equival
20、ent (percent, max.) Jacket 2 Fillers 2 Insulation 18 Halogen content (percent, max.) Jacket 0.2 Fillers 0.2 Immersion (jacket) Tensile strength (percent of unaged, min.) 50 Elongation (percent of unaged, min.) 50 Smoke index (max.) Provided by IHSNot for ResaleNo reproduction or networking permitted
21、 without license from IHS-,-,-MIL-DTL-24640/13E 5 Jacket 25 Fillers 45Insulation 10Toxicity index (max.) Jacket 5 Fillers 5 Insulation 1.5 Durometer (jacket) - Type A (hardness, min.) 80 Weathering (jacket) No failure Fungus resistance No failure Abrasion resistance No failure Gas flame (3 hour) Not
22、 applicable Component wire No failure UNIT ORDERING LENGTHS: Type and size Feet (nominal) All types 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. Custodians: Preparing Activit
23、y:Army MI Navy SH Navy SH (Project 6145-2009-081) Review Activities: Army AR, AV, CR, CR4 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 https:/assist.daps.dla.mil. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
