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| MILT81821
For overseas use, the voltage and frequency of the
3.2.1.11.2 Power from overseas sources.
electrical power source at the overseas trainer facility shall be specified in the trainer Detail
Specification. The power conversion units required to convert the voltage and frequency of the
facility power source to the voltage and frequency required for trainer operation shall be
contractor-furnished and shall be specified in the Detail Specification.
Trainers to be sold under the foreign
3.2.1.11.3 Power design for foreign military sales.
military sales program shall be designed to operate from power sources compatible with those
available in-country, insofar as power voltage and frequency are concerned. Necessary power
conversion units, whether these units are to be contractor-furnished or furnished by the customer,
shall be specified in the trainer Detail Specification.
3.2.1.11.4 Power supply and environmental control equipment.
Unless otherwise specified
in the Detail Specification, basic electrical, hydraulic, and pneumatic power supply and
environmental control equipment required shall be furnished by the contractor.
Unless otherwise
3.2.1.11.5 Central power conversion and environmental control units.
specified in the Detail Specification, the electrical power conversion units, hydraulic power units,
and pneumatic power units (air compressors) required to supply power to the permanent power
distribution systems of the facility, and any special environmental control equipment required to
operate the trainers in the classroom environment, shall be furnished by the Contractor. The central
power conversion units shall provide sufficient continuous power of each type required (electrical,
hydraulic, and pneumatic), to simultaneously operate the complete maintenance trainer set, plus a
growth factor allowance of at least twenty-five percent (25%). The central power conversion units
shall be designed to operate from a one hundred twenty/two hundred eight (120/208) VAC, three
(3) phase, four (4) wire, sixty (60) HZ power source. Maximum effort shall be exerted to utilize
standard federal stock listed power units, if appropriate. The central electrical power conversion
units shall provide one hundred twenty/ two hundred eight (120/208) VAC, three (3) phase, four
(4) wire, four hundred (400) HZ power to supply the facility buss duct network. Electrical power
conversion unit output tolerance, such as frequency and voltage regulation, shall conform to the
requirements specified in MlLSTD704, The central hydraulic and pneumatic power units shall
provide the volume and pressure of hydraulic and pneumatic power output to supply the facility
hydraulic and pneumatic power distribution systems. The environmental control units shall provide
the required temperature and humidity control to satisfactorily operate the trainers under the
classroom environmental conditions specified in 3.2.5. Each central power conversion unit shall be
equipped with input and output overload protection, a duplicate remote control and monitor panel,
and a timer to register the hours of operation. The central power conversion units and
environmental control equipment to be furnished shall be specified in the Detail Specification.
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