1、AMSC N/A FSC 6145 INCH-POUND MIL-DTL-24640/9E 8 November 2011 SUPERSEDING MIL-DTL-24640/9D 22 August 2002 DETAIL SPECIFICATION SHEET CABLE, ELECTRIC, -20 TO +105 C, 600 VOLTS, LIGHTWEIGHT, MULTI-PAIR, 22 AWG, TYPE 2XS AND 2XSW (INCLUDING VARIATION TYPES 2XSO AND 2XSOW) This specification is approved
2、 for use by all Departments and Agencies 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 (2XS or 2XSO) and Watertight (2XSW or 2XSOW First - 19-strand, tin-coated coppe
3、r conductor, 22 AWG. Watertight constructions shall be constructed with 7 strands. Second - Component wires shall 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 requiremen
4、ts listed on this specification sheet. Conformance testing shall be in accordance with SAE-AS81044 prior to cabling. Third - Two conductors, one black and one white, twisted together. The pitch shall be 1 inch. Fourth - Optional binder tape. Fifth - Braided shield of 38 AWG tin-coated copper strands
5、. Braid coverage shall be no less than 90 percent determined in accordance with WC-27500. Sixth - Shield insulation of two polyester tapes or a polyester tape and extruded jacket. Identification codes applied using Method 2. Seventh - The required number of shielded, twisted pairs shall be cabled to
6、gether. Cabling sequence shall be consecutive, starting with number 1 from center outward. Fillers may be used, as necessary, to form a round cable. Eighth - Optional binder tape. Construction Variant for Type 2XS/W Ninth - Cross-linked polyolefin jacket (see table I for thickness). NOTE: Manufactur
7、ers identification tape or thread is required (see 3.7.3). Construction Variant for Type 2XSO/W Ninth - Braided shield, tin-coated copper strands. Braid must be constructed to meet surface transfer impedance requirements as listed herein. Provided by IHSNot for ResaleNo reproduction or networking pe
8、rmitted without license from IHS-,-,-MIL-DTL-24640/9E 2 Tenth - Optional binder tape. Eleventh - Cross-linked polyolefin jacket (see table II for thickness). NOTE: Manufacturers identification tape or thread is required (see 3.7.3). TABLE I. Construction details for variant 2XS/W. PIN M24640/9 Type
9、number Number of pairs Jacket thickness (inch) (min.) Cable diameter (inch) Cable weight (pounds per 1000 feet) (max.) (min.) (max.) -01UN -02UN -03UN -04UN -05UN -06UN -07UN -08UN -09UN -10UN -11UN -12UN -13UN -14UN -15UN -16UN 2XS-2 2XS-3 2XS-7 2XS-10 2XS-14 2XS-19 2XS-24 2XS-30 2XSW-2 2XSW-3 2XSW
10、-7 2XSW-10 2XSW-14 2XSW-19 2XSW-24 2XSW-30 2 3 7 10 14 19 24 30 2 3 7 10 14 19 24 30 0.038 0.038 0.041 0.044 0.044 0.044 0.047 0.047 0.038 0.038 0.041 0.044 0.044 0.044 0.047 0.047 0.308 0.325 0.423 0.537 0.582 0.644 0.758 0.804 0.310 0.350 0.475 0.575 0.635 0.725 0.815 0.915 0.332 0.350 0.455 0.579
11、 0.627 0.694 0.818 0.866 0.335 0.380 0.505 0.610 0.675 0.765 0.855 0.955 61.4 74.2 135.0 194.0 245.0 319.0 431.0 500.0 79.0 109.0 204.0 295.0 387.0 513.0 642.0 805.0 TABLE II. Construction details for variant 2XSO/W - overall shield. PIN M24640/9 Type number Number of pairs Jacket thickness (inch) (
12、min.) Cable diameter (inch) Cable weight (pounds per 1000 feet) (max.) (min.) (max.) -01UO -02UO -03UO -04UO -05UO -06UO -07UO -08UO -09UO -10UO -11UO -12UO 2XSO-3 2XSO-7 2XSO-10 2XSO-14 2XSO-19 2XSO-30 2XSOW-3 2XSOW-7 2XSOW-10 2XSOW-14 2XSOW-19 2XSOW-30 3 7 10 14 19 30 3 7 10 14 19 30 0.038 0.041 0
13、.044 0.044 0.044 0.047 0.038 0.041 0.044 0.044 0.044 0.047 0.380 0.474 0.594 0.636 0.709 0.869 0.400 0.500 0.600 0.675 0.750 0.925 0.410 0.510 0.640 0.686 0.765 0.937 0.430 0.540 0.640 0.720 0.805 0.975 117.0 190.0 287.0 323.0 423.0 644.0 153.0 267.0 350.0 460.0 600.0 895.0 Provided by IHSNot for Re
14、saleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24640/9E 3 REQUIREMENTS: Qualification required. Construction details: See tables I and II. Component wire: The component wire shall be in accordance with SAE-AS81044 and shall be tested in accordance with the following
15、 wire 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 Non-blocked Oven temperature, 3002 C (5723.6 F) for 6 hours Water-blocked Oven temperature, 2502 C (4823.6 F) for 6 hour
16、s Blocking 1502 C (3023.6 F) Flammability 30 seconds (max.) 3.0 inches (max.) 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
17、 - 1.5kV root mean square Component wire Impulse test - 8.0 kV (peak) or 3 kHz spark test - 5.5kV root mean square Insulation resistance 5000 megohms for 1000 feet (min.) Life cycle Non-blocked Oven temperature, 2002 C (3923.6 F) for 168 hours Water-blocked Oven temperature, 2002 C (3923.6 F) for 12
18、0 hours Physical properties of primary insulation Tensile strength 2500 lb/in2(min.) Elongation 150 percent (min.) Shrinkage Non-blocked 0.125 inch (max.) at 3002 C (5723.6 F) Water-blocked 0.125 inch (max.) at 2502 C (4823.6 F) Surface resistance 500 megohms inches (min.), initial and final reading
19、s 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-24640/9E 4 Wet dielectric test 2500 volts (root mean square) Wrap test Mandrel wrap test required INS
20、PECTION: Basic Electricals: Conductor resistance (ohms/1000 feet at 25 C, max.) 17.37 Voltage withstand (volts, root mean square, min.) Conductor to conductor and shield 1000 Conductor to shield Not applicable Shield to shield (component shield only) 200 Component shield to overall shield (Type 2XSO
21、/W only) 500 Insulation resistance (megohms/1000 feet, min.) Conductor to conductor and shield 2500 Shield to shield (component shield only) 100 Shield to shield (component shield to overall shield, 2XSO/W only) 100 Conductor and shield continuity No failure Jacket flaws No failure Group A: Visual a
22、nd dimensional No failure Capacitance: Mutual capacitance (at 1 MHz, picofarads/foot (pF/ft), max.) 50 Capacitance unbalance (percent, max.) 15 Characteristic impedance (at 1 MHz, ohms) 40 (min.), 63 (max.) Watertightness (Type 2XSW and 2XSOW only) No failure (see table IX of MIL-DTL-24640 for limit
23、s of water leakage) Weight No failureGroup B: Cold bending No failure Cross-link proof test (percent, max.) Jacket 50 Drip (Type 2XSW and 2XSOW only) No failure Tear (lb/in thickness, min.) 35 Physicals (unaged) Jacket Provided by IHSNot for ResaleNo reproduction or networking permitted without lice
24、nse from IHS-,-,-MIL-DTL-24640/9E 5 Tensile strength (lb/in2, min.) 1300 Elongation (percent, min.) 160 Attenuation (at 3 MHz, dB/100 feet, max.) 3 Gas flame (1 hour) Not applicable Group C: Physicals (aged), air oven Jacket Tensile strength (percent of unaged, min.) 60 Elongation (percent of unaged
25、, 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 2XSW and 2XSOW only) No failure Shrinkage No failureSurface transfer impedance (Type 2
26、XSO and 2XSOW only) 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 equiv
27、alent (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 permitt
28、ed without license from IHS-,-,-MIL-DTL-24640/9E 6 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) No
29、t applicable Component wire No failure UNIT ORDERING LENGTHS: Size Feet (nominal) All types and sizes 2 - 14 500 All types and sizes 19 - 30 250 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 t
30、he changes. Custodians: Preparing Activity:Army MI Navy SH Navy SH (Project 6145-2009-077) 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-,-,-
