A-A-50599
b. Tests.
1. Fan Operation. Operate the portable fan in the following orientations:
normal (i.e.horizontal, resting on its feet)
vertical (90 degrees from horizontal, once with the ventilation discharge side pointing up and once with the ventilation suction side pointing up. The fan shall be positioned so that the air flow to the suction and the discharge sides of the fan will not be restricted.)
Record inrush current, inrush current duration, and running current at each orientation. Record any abnormal operation of the portable fan in any of these orientations.
2. Fan Movement. Operate the portable fan on a 0.25 inch thick wet steel plate for five minutes. The portable fan shall be resting unsecured in its normal orientation. The steel plate shall be laying horizontal on a flat floor and shall be approximately width of the fan.
3. Aerodynamic Performance Test. Perform aerodynamic performance test on the portable fan in accordance with the Air Moving Control Association 210 document. Measure and record data.
4. Explosion Proof Test. Perform explosion proof test in accordance with MIL-E-2036. Petroleum atmosphere shall be used unless otherwise specified in the contract. Test motors shall include the conduit and conduit box actually used with the fan.
5. Voltage/Current Check. Start the portable fan five consecutive times at each of the following voltages at the motor terminals. The run time and-the time between each start shall not exceed one minute.
a. 75 volts
b. 115 volts
C. 126 volts
Measure the voltage at fan terminals, start current, start current time, run current at each voltage, and if the thermal overload protector to open.
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