MIL-DTL-24640C
TABLE XI. Qualification inspection.
Examination or test
Requirement paragraph
Test method paragraph
Cable aging and compatibility
Specification sheet
Acid gas equivalent
Specification sheet
Halogen content
Specification sheet
Flame propagation
Specification sheet
Immersion
Specification sheet
Smoke index
Specification sheet
Toxicity index
Specification sheet
Durometer
Specification sheet
Weathering
Specification sheet
Fungus resistance
----
Abrasion resistance
Specification sheet
Gas flame (3 hour)
Specification sheet
Finished wire
Specification sheet
Specification sheet
Physicals (aged)
Specification sheet
Armor
Specification sheet
4.3.1 Qualification specimens. A manufacturer seeking qualified products listing (QPL) shall manufacture and
be responsible for testing a cable type and size required for group qualification in accordance with table XI. When a
manufacturer desires qualification of an individual type, size, or group, the selection of test specimens and scope of
qualification shall be subject to review. For specification sheets (see 3.1) having more than one type of insulation
compound, each insulation type will require qualification. A sufficient length of any test specimen shall be
manufactured at one time.
4.3.1.1 Scope of qualification requirements. Authorized testing of qualification samples outlined in table XII
or testing of selected samples to incorporate alternate materials in the originally approved Details of Construction
Sheets and approval of low smoke electrical cables based on satisfactory test results for the representative samples
shall not in any way be construed as meaning that only the type/size/variation of the representative sample(s) has to
meet the specification requirements. All types/sizes/variations comprising the group(s) represented by the test
sample(s) must meet all specification requirements.
4.3.2 Qualification retention. Retention qualification is required on an annual basis with the initial retention
qualification date established by NAVSEA or qualifying activity. NAVSEA or qualifying activity will require
annual certification and three years requalification testing (of materials) or both. At a minimum, annual certification
is required that equipment and facilities, processes, design and materials have not changed since qualification unless
such change has been approved by NAVSEA. The vendor will requalify every three years and perform as required,
the following tests, at a minimum, shall be performed in accordance with the applicable test paragraphs, (see table
XI), on all materials for which a requirement is specified:
·
Halogen content
·
Toxicity index
·
Acid gas
·
Smoke index
·
Immersion
·
Flame propagation (see 6.2.5)
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