MIL-DTL-29606A
3.6 Properties of stranded conductors.
3.6.1 Conductor diameter. The diameter of the conductor shall be as specified in table II.
Applicability of the "general purpose" or of the "small diameter" table II requirements for the
maximum conductor diameter shall be as indicated by the part number. All measurements shall
fall within the specified range. The diameter shall be measured in accordance with 4.7.2. All
conductors without a distinct diameter tolerance (GP or SD) shall be designated as general
purpose (GP) diameter tolerance conductors (see 1.2.1).
3.6.2 Solderability. The stranded conductor shall have a minimum coverage of 95 percent
when examined after testing to the method specified in 4.7.3. Solderability requirements are not
applicable to aluminum, thermocouple extension, or nickel coated conductors.
3.6.3 Elongation. The elongation of the entire conductor shall be measured on size 22 and
smaller annealed copper, and all copper alloy conductors. Elongation measurements on single
strands removed from the stranded constructions shall be measured on larger sizes of annealed
copper and all sizes of aluminum. The minimum elongation shall be not less than the values in
table II as measured in accordance with 4.7.4. Elongation requirements are not applicable to
thermocouple extension conductors.
3.6.4 Tensile strength. The break strength of all copper alloy conductors shall be measured.
The minimum break strength shall not be less than the values in table II. Tensile strength values
of aluminum conductors shall be as specified in table II. There are no requirements for tensile
strength on the annealed copper conductors and thermocouple extension conductors. The tensile
strength or break strength shall be measured in accordance with 4.7.4.
3.6.5 Conductor resistance. The DC resistance of the conductor shall be not greater than
the values in table II as measured in accordance with 4.7.5. In addition, for thermocouple
extension conductors only, the DC resistance of the conductor shall be greater than the
minimum values in table II as measured in accordance with 4.7.5.
3.6.5.1 Electromotive force (thermocouple extension conductor only). The temperature-
electromotive force relationship of the type K positive and negative legs formed together as a
thermocouple shall conform to requirements of ANSI-MC96.1 for type K compositions when
measured in accordance with 4.7.5.1.
3.6.6 Continuity of coating. For all coated conductors, the coating on the strands shall be
continuous in accordance with the applicable ASTM requirement (ASTM-B286, ASTM-B355
or ASTM-B965).
3.6.6.1 Coating workmanship examination. For workmanship examination of the coating
follow procedures in 4.7.6. A specimen is considered to have failed if exposed copper is
revealed due to the stranding operation or as a pre-existing condition prior to stranding.
8
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business