MIL-DTL-24765A(NAVY)
4.6.33 High temperature operation. High temperature tests shall be conducted at an ambient temperature of
4.6.33.1 Assembly and mounting of equipment. The UPS shall be completely assembled and mounted in a
manner which simulates shipboard mounting and space restrictions.
4.6.33.2 Operation. The UPS shall be operated at nominal rated input voltage and frequency.
4.6.33.3 Loading. The UPS shall be loaded to 100 percent of rated capacity (0.8 p.f. lagging for AC outputs).
4.6.33.4 Duration of test. The UPS shall be operated continuously for 120 hours. The UPS shall operate as
specified herein without any failure.
4.6.34 Inclined operation. The UPS shall be tested for inclined operation at 45 degrees from the horizontal.
The UPS shall be run at rated-load (0.8 p.f. lagging for AC outputs) for a period of not less than 1 hour at each of the
following positions:
a.
45 degrees forward.
b.
45 degrees backward.
c.
45 degrees to left side.
d.
45 degrees to right side.
The UPS shall operate as specified herein.
4.6.35 Humidity. The UPS shall be tested in accordance with MIL-STD-810 and shall operate as specified
herein.
4.6.36 Remote operation. If remote operation is specified (see 6.2), the UPS shall be operated at nominal input
power and load. Remote operation shall be demonstrated.
4.6.37 Reliability. Reliability shall be certified. MIL-HDBK-781 may be used as a guide.
4.6.38 Maintainability. Maintainability shall be certified. MIL-HDBK-470 may be used as a guide.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified in the contract or
order (see 6.2). When packaging of materiel is to be performed by DoD or in-house contractor personnel, these
personnel need to contact the responsible packaging activity to ascertain packaging requirements. Packaging
requirements are maintained by the Inventory Control Point's packaging activities within the Military Service or
Defense Agency, or within the military service's system commands. Packaging data retrieval is available from the
managing Military Department's or Defense Agency's automated packaging files, CD-ROM products, or by
contacting the responsible packaging activity.
6. NOTES
(This section contains information of a general or explanatory nature that may be helpful, but is not
mandatory.)
6.1 Intended use. The UPS covered by this specification is intended to provide uninterruptible Navy shipboard
electrical power for vital loads. Both AC and DC output power is available.
6.2 Acquisition requirements. Acquisition documents should specify the following:
a.
Title, number, and date of this specification.
b.
When first article is required (3.1).
c.
Output (AC or DC) (see 3.2.2).
d.
If AC output, voltage required (see 3.2.2.a).
e.
If DC output, voltage required (see 3.2.2.b).
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