DLA MIL-DTL-49285 3 A-2009 CABLE SPECIAL PURPOSE ELECTRICAL NINE INDIVIDUALLY SHIELDED PAIRS OF 22 AWG SOLID WIRE.pdf
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1、INCH-POUNDMIL-DTL-49285/3A 15 May 2009 SUPERSEDING MIL-C-49285/3 19 October 1989 DETAIL SPECIFICATION SHEET CABLE, SPECIAL PURPOSE, ELECTRICAL, NINE INDIVIDUALLY SHIELDED PAIRS OF 22 AWG SOLID WIRE Inactive for new design after 16 June 1997.This specification is approved for use by all Departments a
2、nd Agencies of the Department of Defense. The requirements for acquiring the product described herein shall consist of this specification sheet and MIL-DTL-49285. FIGURE 1. Cable illustration. AMSC N/A FSC 6145 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from
3、 IHS-,-,-MIL-DTL-49285/3A Engineering information: See table I. Not for aerospace use. TABLE I. Description, electrical. Electrical characteristics Requirements Nominal capacitance between conductors Nominal capacitance between the conductor and the shield with one conductor tied to the shield Conti
4、nuous working voltage Nominal capacitance between adjacent shields Continuous working voltage between adjacent shields Shield dc resistance 40 pF/ft (picofarads/foot) 77 pF/ft 300 V rms maximum between conductors 150 pF/ft 50 volts maximum 14 ohms/1,000 feet maximum TABLE II. Description, physical.
5、Components Construction details Number of pairs Conductor type and wire size Conductor insulation Conductor insulation thickness Drain wire type and size Jacket material Jacket thickness Finished cable diameter Cable style (UL) Tensile strength (jacket) Elongation (jacket) Overall cabling lay length
6、 Nine individually shielded Stranded tinned copper 22 AWG Polyvinyl chloride 0.013 inch nominal thickness Stranded tinned copper 22 AWG Polyvinyl chloride 0.038 inch 0.440 inch maximum outside diameter 2464 2,000 pounds per square inch minimum 150 percent minimum 1.3 twists per foot 10 percent Cable
7、d pair orientation: The position of the red and green pair shield shall determine the rotation direction for pair location (see figure 1). Shield color code. See table III. 2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-49285/3A TABLE III.
8、Shield color code. Pair numbers Shield color 1stpair 2ndpair 3rdpair 4thpair 5thpair 6thpair 7thpair 8thpair 9thpair Red center core Red Green Blue 1 Blue 2 Blue 3 Blue 4 Blue 5 Blue 6 REQUIREMENTS: Design and construction. See table II. Shield location and orientation. The polyester aluminum shield
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