MIL-DTL-55036C
investigate the cause of failure and further report the results of investigations and details of the proposed
corrective action on (1) the process and materials, as applicable, and (2) all units of produce which were
manufactured under the same conditions and which the government considers subject to the same
failure. Reports shall be forwarded to the responsible technical activity designated in the contract through
the Quality Assurance Representative. After corrective actions have been taken additional sample units
shall be subjected to the group C inspection (all inspections, or the inspections which the sample failed, at
the option of the Government) and groups a and b inspections may be reinstituted; however, final
acceptance and shipment will be withheld until the group C reinspection results have shown that the
corrective action was effective (see 6.4).
4.5.4 Rejected lots. Unless otherwise specified, sample units which have been subjected to and
passed group B or group C inspection, or both, may be accepted on contract, provided that they are
resubjected to and pass group A inspection after repair of all visible damage.
4.6 Methods of inspection.
(see 3.1.1).
4.6.1.1 Copper strands. Copper strands shall be tested for compliance with the requirements of
4.6.1.2 Galvanized steel strands. Steel strand shall be tested in accordance with the following for
compliance with the requirements of 3.1.1.1.1.
a. Tensile strength. Test the steel strand to determine that the breaking strength is as required in
3.1.1.2a.
b. Weight of coating. Test the steel strand in accordance with ASTM-A90/A90M to determine
that the weight of the coating is as required in 3.1.1.2b.
c. Uniformity of coating. Test several specimens from a single sample of the steel strand in
accordance with ASTM A239 to determine the number of 15 second immersions before the
end point is reached as required in 3.1.1.2c.
4.6.2 Conductor insulation. Conductor insulation shall be tested for compliance with the requirements
of 3.1.2.
4.6.2.1 Thermal stress cracking. Specimens shall be looped back and tightly wound back on
themselves for 5 close turns and the ends secured. The specimens shall be placed in an oven at a
temperature of 100+1 °C for 14 days. Following the test, the specimens shall cool naturally to room
temperature and then examined as specified in 3.1.2.1.
4.6.3 Color code. The insulated conductors shall be inspected for compliance with requirements of
4.6.4 Pair twist. Cable shall be inspected for compliance with the requirements of 3.1.4.
4.6.5 Cabling. Cable shall be inspected for compliance with the requirements of 3.1.5.
4.6.6 Manufacturer's marker. Cable shall be inspected for compliance with the requirements of 3.1.6.
4.6.7 Binding. Cable shall be inspected for compliance with the requirements of 3.1.7.
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