MIL-DTL-16036M(SH)
b.
Damaged parts are replaced.
c.
Damaged structural members are repaired or replaced.
d.
Post shock and vibration electrical tests and inspections show conformance to specified performance.
e.
The unit is covered by the same guarantee by the manufacturer as other production units.
f. The shock tested unit is free from any distortion of the frame members or enclosure that would prevent its
being bolted to the deck or to other switchgear units to form a switchboard section. Measurements shall be made to
detect any misalignment of bolt holes or bent framework.
4.4.3.3.3 Extension of shock tests. Extension of satisfactory shock test results to other sections shall be in
accordance with the requirements of MIL-S-901. Requests for test extension shall include, but shall not be limited
to, the following:
a.
Change in weight and mass.
b.
Change in center-of-gravity.
c.
Change in moments-of-inertia.
d.
Changes in dimensions (i.e., height and footprint).
e.
Changes in circuit breaker frame sizes, locations, and quantities.
f.
Change in materials or size and location of structural members.
g.
Changes in method of circuit breaker mounting.
h.
Changes in bus bar arrangement or method of support.
i.
Changes in ship mounting classification (i.e., deck or hull mounting).
j.
Changes in mounting orientation (i.e., athwartship or fore/aft).
4.4.3.4 Vibration test. A vibration test shall be conducted on switchboard sections in accordance with the Type
I requirements of MIL-STD-167-1 (see 4.4.3.3.1). Any major redesign of the tested section which might alter the
ability of the sections to withstand this test shall require a retest to determine conformance to these requirements (see
4.4.3.3.3). Separate tests shall be conducted on steel and aluminum switchgear sections (see 3.5.10).
4.4.3.4.1 Vibration test energization, contact monitoring, and pass/fail criteria. Vibration test energization,
contact monitoring, and pass/fail criteria shall be the same as for shock testing except that no contact bounce is
acceptable. Also, all circuit breakers shall complete an open/close operation after endurance axis change. Also, all
circuit breakers with racking capability shall complete a racking cycle after endurance axis change. Fans shall be
energized during vibration testing.
4.4.3.4.2 Extension of vibration tests. Extension of vibration test results to other sections shall meet the
requirements as specified (see 6.2). Requests for test extension shall include similar information as stated in
4.4.3.5 Dielectric strength. Equipment shall withstand, for a period of 1 minute, a dielectric test voltage of
twice the rated voltage of the equipment plus 1,000 volts RMS value. The frequency of the test voltage shall be not
less than 60 Hertz. It shall approximate a true sine wave. The source of the test potential shall have a rating of at
least 1 kilowatt (see 3.25).
4.4.3.6 Waterspray, watermist, and heat tests for switchgear. (see 6.2)
51
For Parts Inquires submit RFQ to Parts Hangar, Inc.
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business