MIL-DTL-27072 Cable, Power, Electrical And Cable, Special Purpose, Electrical, Multiconductor And Single Shielded, General Specification ForThis specification covers special purpose electrical multi-conductor and single shielded cable for electronic circuits where the cable will be protected in racks, tunnels, or within buildings, trailers, or equipment. Cables constructed using polyvinyl chloride \(PVC\) on insulated wires or for fillers, tapes, or jackets are not to be used for aerospace applications.

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MIL-DTL-27072E

3.6.3 Cable marking durability. Marking on cable sheath materials designated A and B shall remain

legible after being repeatedly subjected to abrasion.

3.7 Finished cable.

3.7.1 Conductor resistance. The direct current resistance of each conductor in a cable shall not

exceed the value specified in the applicable basic wire specification.

3.7.2 Dielectric strength. Insulated conductors in the finished cable shall be capable of withstanding

the dielectric strength withstanding test voltage specified in the applicable specification sheet.

3.7.3 Cold bend. The cable shall show no evidence of cracked sheath, component jacket, or

conductor insulation when exposed to cold bending conditions, as specified in 4.3.5.

3.8 Workmanship. The finished cable shall conform to the requirements specified herein and those

of the applicable specification sheet. Unless otherwise specified in the applicable specification sheet, the

cable shall be round, i.e., possessing a circular cross section. The cable shall also possess cylindrical

uniformity and, in addition, shall be free from lumps and kinks. The cable outer surface shall be smooth

and free from abrasions, scraped, pitted or pocked surfaces, skin impurities, and other deficiencies.

4. VERIFICATION

4.1 Classification of inspections. The inspection requirements specified herein are classified as

follows:

a. Process control inspection (see 4.2.1).

b. Conformance inspection (see 4.2.2 ).

4.2 Test equipment and inspection facilities. Test and measuring equipment and inspection facilities

of sufficient accuracy, quality, and quantity to permit performance of the required inspection shall be

established and maintained by the contractor. The establishment and maintenance of a calibration

system to control the accuracy of the measuring and test equipment [i.e., non-Government standard

(NGS) or federal or military standard] shall be in accordance with NCSL-Z540.1 or equivalent.

4.2.1 Process control inspection. Process control inspections are performed at the most appropriate

stage of the manufacturing operation. The process control tests shall consist of the inspections listed in

table X and shall be performed on all cable produced.