MIL-DTL-28830E
3.3 Material. Unless otherwise specified (see 3.1), materials for the principle components of the
cable shall be as specified herein. Prior approval to use substitute material must be obtained from
the qualifying activity. However, when a definite material is not specified, a material shall be used
which will enable the finished product to meet the performance requirements of this specification.
Acceptance or approval of any constituent material shall not be construed as a guarantee of the
acceptance of the finished product.
3.3.1 Virgin material. For purposes of this specification, virgin material shall be 100 percent new
material which has been through only the processes essential to its manufacture and its application to
the finished cable and which has been through these essential processes one time only. Any
material which has previously been processed in any other manner is considered non-virgin material.
This requirement shall apply to the manufacture of all ingredients and components used.
3.3.2 Copper-clad aluminum. Copper-clad aluminum wire shall be in accordance with ASTM B566
(see 4.2).
3.3.4 Foam polyethylene. Foam polyethylene shall be in accordance with ASTM D1248, type I, class
A or B (see 4.2). Vendor blends are acceptable if their dissipation factor is less than 0.0003.
3.3.6 Non-halogenated fire-retardant compound. The property values of the non-halogenated fire-
retardant compound shall be as specified in the applicable specification sheet (see 3.1), when tested
in accordance with the corresponding testing method in table I.
TABLE I. Non-halogenated fire retardant compound properties.
Property
Test method
Density
Tensile strength
Ultimate elongation
Oxygen index
Temperature index
Smoke index
Toxicity index
Halogen content
Acid gas generation
3.4 Design and construction. The cables shall be of the design, construction, and physical
dimensions specified (see 3.1).
3.4.1 Splices. Each specified length of cable (see 6.2) shall be electrically and mechanically
continuous. No cable splices shall be allowed after fabrication of the cable.
3.4.2 Dimensional errors and tolerances. The cumulative dimensional errors shall not result in the
cables failing the voltage standing wave ratio (VSWR) test.
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