MIL-DTL-22931D
ASTM D150
- Loss Characteristics (AC) and Permittivity (Dielectric Constant) of Solid
Electrical Insulation.
ASTM D648
- Plastics, Deflection Temperature of, Under Flexural Load in the Edgewise
Position.
ASTM D1248
- Polyethylene Plastics Extrusion Materials for Wire and Cable.
(Copies of these documents are available from www.astm.org or ASTM International, 100 Barr Harbor
Drive, Conshohocken, PA 19428-2959.)
NATIONAL CONFERENCE OF STANDARDS LABORATORIES (NCSL)
NCSL-Z540.3 - Calibration Laboratories and Measuring and Test Equipment.
(Copies are available online at https://www.ncsli.org/ or from National Conference of Standards
Laboratories [NCSL], 2995 Wilderness Place Suite 107, Boulder, Colorado 80301-5405.)
2.4 Order of precedence. In the event of a conflict between the text of this document and the
references cited herein (except for related specification sheets), the text of this document takes
precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a
specific exemption has been obtained.
3. REQUIREMENTS
3.1 Specification sheets. The individual item requirements shall be as specified herein and in
accordance with the applicable specification sheets. In the event of any conflict between the
requirements of this specification and the specification sheet, the latter shall govern.
3.2 Materials. The materials used in the construction of the cable shall be as specified herein.
However, when a definite material is not specified, a material shall be used which will enable the cable to
meet the performance requirements of this specification. Acceptance or approval of any constituent
material shall not be construed as a guaranty of the acceptance of the finished product.
3.2.1 Inner conductor. The inner conductor shall be solid or tubular as specified (see 3.1) and shall be
in accordance with 3.2.1.1, 3.2.1.2, or 3.2.1.3.
3.2.1.1 Solid. Solid conductors shall be wire conforming to A-A-59551.
3.2.1.2 Tubular. Tubular conductors shall conform to the requirements of ASTM B188.
3.2.1.3 Tubular, with seam or weld. Tubular conductors, with seam or weld, shall be manufactured
from copper strip that conforms to ASTM B152/B152M.
3.2.1.4 Joints. There shall be no joints in solid conductors made subsequent to the last drawing
operation. Joints in the inner conductors shall be brazed or silver soldered using a nonacid flux, so that
the diameter shall not be increased and there shall be no lumps or sharp projections.
3.2.2 Dielectrics. The dielectrics used in the construction of cables shall be as specified for each
specified application (see 3.1), and shall be in accordance with 3.2.2.1, 3.2.2.2 or 3.2.2.3.
3.2.2.1 Polyethylene. Polyethylene shall be in accordance with ASTM D1248.
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