MIL-DTL-442G
4.3.5 Rejected lot. If one or more specimens in the lot fail to pass a group A or group B verification
test or inspection, the entire lot shall be rejected. Disposition shall be in accordance with the contract
(see 6.2).
4.3.6 Non compliance. If a specimen fails to pass group B inspections (see 4.3.4), the contractor
shall take action according to the contract (see 6.2).
4.4 Methods of inspection.
4.4.1 Construction. Construction of the cable to permit separation of the individual conductors shall
be tested by taking a 2-foot specimen and slitting the end approximately .5 inch (12.7 mm) in length
between the two conductors. Grasp each conductor and tear the entire two-foot length. The cable
should separate cleanly without exposing any bare wire.
4.4.2 Material examination. All material, including conductors, shall be examined for compliance with
specified requirements.
4.4.2.1 Conductor. The material for types I and II conductors shall be inspected for conformance
4.4.3 Conductor resistance (type III). Resistance of the type III conductor of the finished cable shall
be tested in accordance with method 6021.1 of FED-STD-228.
4.4.4 Joints. The joints shall be considered acceptable when the diameter, conductor resistance
(type III only), flexibility, and tensile strength tests have been successfully completed.
4.4.5 Size. Conductor diameter, either stranded or solid conductor, shall be inspected to verify
conformance with requirements.
4.4.6 Separator. The separator, when used for class 2 and 3 cable, shall be checked visually to
verify its presence and color. Fungus resistance shall be tested in accordance with ASTM-G21.
4.4.7 Breaking strength (type III). The breaking strength of the type III finished cable shall be
determined by using a specimen of full cross section with the insulation intact. The ends of the specimen
shall be secured to fixtures attached to the stationary and movable heads of a tensile testing machine, in
accordance with method 3211 of FED-STD-228, by wrapping the specimen once around the fixture and
making the end fast to the fixture. The fixtures shall be cylindrical, not less than .5 inch (12.7 mm) in
diameter and positioned with their axes normal to and about one half of the radius from the centerline of
the pull of the machine. The distance between centers of the fixtures at the start of the test shall be
approximately 10 inches (254 mm) with the sample taut. The speed of travel of the movable head, with
no load, shall be not more than .5 inch (12.7 mm) per minute.
4.4.8 Insulation (classes 1, 2, and 3). Insulation thickness shall be inspected in accordance with
property values, as specified in table II and table III, shall be verified through tests conducted in
accordance with table VII using dumbbell specimens cut from sheets of the same material.
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