MIL-PRF-55629E
4.5 Verification of qualification. To retain qualification, the contractor shall provide verification to the qualifying
activity of the following items every 12 months:
a.
Design of the circuit breaker has not changed.
b.
Verification that the conformance inspections have been performed on inspection lots supplied to the
requirements of this specification.
c.
Verification that the periodic inspections have been performed as applicable. The inspections shall consist
of the examinations and tests specified in table ll in the order shown. If test results indicate nonconformance
with the specification requirements, and corrective action acceptable to the qualifying activity has not been
taken, action may be taken to remove the failing product from the QPL.
d.
Contractors shall provide certification of current UL listing and an analysis of any discrepancy found during
the UL follow-up service program affecting quality of product or changes in interface and physical
dimensions.
In the event that no production occurred during the reporting period, the contractor shall still verify to the qualifying
activity that the capacity to manufacture and test QPL circuit breakers still exists and that the contractor wants to
remain on the QPL. If, during two consecutive reporting periods, there has been no production, the manufacturer
may be required, at the discretion of the qualifying activity, to submit a representative product of the highest and
lowest current rating covered by each major design set to testing in accordance with the qualification inspection
requirements.
4.5.1 Failures. If one or more sample units fail to pass verification of qualification inspection, the sample shall be
considered to have failed.
4.5.2 Disposition of sample units. Sample units which have been subjected to the inspections in table II shall not
be delivered on the contract or order.
4.6 Inspection of categories II and III circuit breakers (items not covered by specification sheets). Inspection
requirements for items not covered by specification sheets shall be performed by the contractor, after award of
contract, and prior to production (see 6.2).
4.6.1 Category II circuit breakers. Additional tests to verify suitability of the variations from category I circuit
breakers shall be as specified (see 6.2).
4.6.2 Category III circuit breakers. Unless otherwise specified (see 6.2), the inspection requirements shall be as
4.7 Conformance inspection.
4.7.1 Inspection of product for delivery. Inspection of product for delivery shall consist of group A inspection.
4.7.1.1 Inspection lot. An inspection lot shall consist of all the circuit breakers covered by a single specification
sheet produced under essentially the same conditions, and offered for inspection at one time. In addition, circuit
breakers, similar in design and number and number of poles except for the presence of auxiliary contact terminals,
may be combined to form a lot, provided that a proportional quantity of sample units with and without auxiliary contact
terminals are incorporated into the sample.
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