1、AMSC N/A FSC 6145 INCH-POUND MIL-DTL-24640/14E 8 November 2011 SUPERSEDING MIL-DTL-24640/14D 22 August 2002 DETAIL SPECIFICATION SHEET CABLE, ELECTRIC, -20 TO +105 C, 600 VOLTS, LIGHTWEIGHT, MULTI-CONDUCTOR, 22 AWG, TYPE 1XSOW This specification is approved for use by all Departments and Agencies of
2、 the Department of Defense. The requirements for acquiring the product described herein shall consist of this specification sheet and MIL-DTL-24640. Construction (Watertight) First - 7-strand, tin-coated copper conductor. AWG size and dimensions in accordance with table I. Second - Insulation materi
3、al and basic construction requirements shall be in accordance with SAE-AS81044/12, and tested 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 cabling. Component wire color shall be
4、 white, unless specified otherwise. Third - Braided shield of 38 AWG tin-coated copper strands. Braid coverage shall be no less than 90 percent determined in accordance with WC-27500. Fourth - Shield insulation of two polyester tapes or a polyester tape and extruded jacket. Identification codes appl
5、ied using Method 2. Fifth - The required number of shielded components shall be cabled together. Cabling sequence shall be consecutive, starting with number 1 from center outward. Fillers may be used, as necessary, to form a round cable. Sixth - Optional binder tape. Seventh - Braided shield, tin-co
6、ated copper strands. Braid must be constructed to meet surface transfer impedance requirements as listed herein. Eighth - Optional binder tape. Ninth - Cross-linked polyolefin jacket (see table II for thickness). NOTE: Manufacturers identification tape or thread is required (see 3.7.3). Provided by
7、IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24640/14E 2 TABLE I. Component wire details. Watertight conductor Finished wire Wire size (AWG) Stranding (no. x AWG) Diameter nominal (inches) Diameter (inches) Test load life cycle accelerated aging tests
8、 (lbs 3%) Low temp. at -40 C Mandrel diameter (inches) Test load (lbs) 22 7 x 30 0.030 0.047 0.003 0.190 0.75 1.0 TABLE II. Construction details. PIN M24640/14 Type number Number of component wires Jacket thickness (inch) (min.) Cable diameter (inch) Cable weight (pounds per 1000 feet) (max.) (min.)
9、 (max.) -01UO -02UO -03UO -04UO 1XS0W-2 1XSOW-14 1XSOW-20 1XSOW-30 2 14 20 30 0.034 0.041 0.044 0.044 0.292 0.470 0.542 0.614 0.314 0.506 0.584 0.662 85.0 280.0 330.0 429.0 REQUIREMENTS: Qualification required. Construction details: See tables I and II. Component wire: The component wire shall be in
10、 accordance with SAE-AS81044 and shall be tested in accordance with the following wire ratings and additional requirements. Temperature rating 135 C (275 F) (max.) conductor temperature Voltage rating 600 volts (root mean square) at sea level Accelerated aging Oven temperature, 2502 C (4823.6 F) for
11、 6 hours Low temp. cold bend -40 C (-40 F) for 4 hours 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 Primary insulation 6.0 kil
12、ovolts (peak), 100 percent impulse test (when tested in lieu of spark test) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24640/14E 3 Finished wire 8.0 kilovolts (peak), or 3 kHz spark test 5.5 kV, 100 percent test Insulation resistance 500
13、0 megohms for 1000 feet (min.) Life cycle Oven temperature, 2002 C (3923.6 F) for 120 hours Physical properties of primary insulation Tensile strength 2500 lb/in2(min.) Elongation 150 percent (min.) Shrinkage 0.125 inch (max.) at 2502 C (4822 F) Spark test primary insulation 1500 volts (root mean sq
14、uare), 3 kHz, 100 percent test 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 Wet dielectric test 2500 volts (root mean square) Wrap test Mandrel wrap test required INSPECTION: Basic
15、Electricals: Conductor resistance (ohms/1000 feet at 25 C, max.) 17.63 Voltage withstand (volts, root mean square, min.) Conductor to conductor Not applicable Conductor to shield 1000 Component shield to component shield 200 Component shield to overall shield 500 Insulation resistance (megohms/1000
16、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 Group A: Visual and dimensional No failure Capacitance: Mutual capacitance (at 1 MHz, picofar
17、ads/foot (pF/ft), max.) 120 Capacitance unbalance (percent, max.) Not applicable Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24640/14E 4 Characteristic impedance (at 1 MHz, ohms) 13 (min.), 27 (max.) Watertightness No failure (see table I
18、X of MIL-DTL-24640 for limits of water leakage) Weight No failureGroup B: Cold bending No failure Drip No failureCross-link proof test (percent, max.) Jacket 50 Tear (lb/in thickness, min.) 35 Physicals (unaged) Jacket Tensile strength (lb/in2, min.) 1300 Elongation (percent, min.) 160 Attenuation (
19、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.) 60 Elongation (percent of unaged, min.) 60 Permanence of printing 25 (conductor insulation, cycles, Method 1 only, min.) Permanence of p
20、rinting (jacket, cycles, min.) 125 Heat distortion (percent of unaged, max.) 30 Cable sealant removability No failure Shrinkage No failureSurface transfer impedance Milliohms per meter (max.) 700 EMP response (dB, min.) 60 Group D: Flame propagation No failure Provided by IHSNot for ResaleNo reprodu
21、ction or networking permitted without license from IHS-,-,-MIL-DTL-24640/14E 5 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 equivalent (percent, max.) Jacket 2 Filler
22、s 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.) Jacket 25 Fillers 45Insulation 10Toxicity index (max.) Jacket 5 Fillers 5 Insulation 1.5 Durometer (jac
23、ket) - Type A (hardness, min.) 80 Weathering (jacket) No failure Fungus resistance No failure Abrasion resistance No failure Gas flame (3 hour) Not applicable Component wire No failure UNIT ORDERING LENGTHS: Type and size Feet (nominal) 1XS0W-2, 1XSOW-14, 1XSOW-20, 1XSOW-30 500 CHANGES FROM PREVIOUS
24、 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. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-24640/14E 6 Custodians: Preparing Activity:Army
25、MI Navy SH Navy SH (Project 6145-2009-082) 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-,-,-
