MIL-PRF-55629E
a.
Part number (see 3.1).
b.
Current rating, voltage, and operating frequency (see 3.1).
c.
Supplier s name or code symbol and date code.
d. Circuit schematic using symbols in accordance with IEEE STD 315. Metal or metalized labels shall not be
used.
3.25.2 Other marking. The "on" and "off" positions of lever-type actuators (see 3.5.4); the main "line" terminal(s)
(see 6.6.2); and where applicable, the auxiliary contact terminals (see 3.1 and 3.5.8.2) and line and load terminal
numbers (see 3.1), shall be clearly and permanently marked on each unit. Multipole breakers with mixed current
ratings and/or trip curves shall be marked so the ratings of each pole are identified.
3.26 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally
preferable materials should be used to the maximum extent possible, provided that the material meets or exceeds the
operational and maintenance requirements, and promotes economically advantageous life cycle costs.
3.27 Workmanship. Circuit breakers shall be processed in such a manner as to be uniform in quality and shall be
free from cracked or displaced parts, sharp edges, burrs and other defects that will affect life, serviceability or
appearance.
4. VERIFICATION
4.1 Classification of inspections. The inspection requirements specified herein are classified as follows:
a.
Qualification inspection (category 1 circuit breakers only) (see 4.4).
b.
Verification of qualification (see 4.5).
c.
Inspection of categories II and III circuit breakers (see 4.6).
d.
Conformance inspection (see 4.7).
4.2 Test equipment and inspection facilities. The manufacturer shall establish and maintain a calibration system in
accordance with NCSL Z540.3, ISO 10012, or equivalent system as approved by the qualifying activity.
4.3 Inspection conditions. Unless otherwise specified herein, all inspections shall be performed in accordance with
the test conditions specified in the "GENERAL REQUIREMENTS" of MIL-STD-202.
4.3.1 Power supply. Unless otherwise specified herein, the power supply shall have no more than 10 percent
regulation at the specified test load. A dc power supply shall have no more than 5 percent voltage ripple. An ac
power supply shall be within 10 percent of the specified frequency and shall be sinusoidal with a form factor of 1.25
maximum. When specified (see 3.1), the ac or dc power supply shall be capable of simulating the normal and
abnormal power conditions described in MIL-STD-704.
4.4 Qualification inspection (category I circuit breakers only, see 3.2.1). Qualification inspection shall be
performed at a laboratory acceptable to the Government (see 6.3) on sample units produced with equipment and
procedures normally used in production.
4.4.1 Sample size. The number of circuit breakers to be subjected to qualification inspection shall be as specified
in the appendix to this specification.
4.4.2 Inspection routine (specification sheet 1 through sheet 12) tripping time delays A through G. Sample units,
grouped as specified in the appendix, shall be subjected to the qualification inspection specified in table I, in the order
shown. All 42 sample units shall be subjected to the inspection of group I. Then the 42 sample units shall be
allocated as follows into six 7-unit groups, as specified in the appendix, and subjected to the inspection for their
particular group.
Group II
-
One 7-unit group covering the highest current rating.
-
One 7-unit group each; each 7-unit group uniformly composed of circuit breakers at
Groups III, IV, and V
either the highest or lowest current rating at the option of the supplier.
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