MIL-DTL-24765A(NAVY)
TABLE II. First article inspection.
UPS AC
UPS DC
Examination and test
Requirement
Test method
output
output
General examination
X
X
Size and weight
X
X
Creepage and clearance
X
X
Insulation resistance
X
X
Dielectric withstanding voltage
X
X
Enclosures
X
X
Input power perturbations
X
X
Input voltage spikes
X
X
Input current harmonics
X
X
Input current balance
X
X
Starting time
X
X
Grounding
X
X
Output voltage and frequency
X
---
regulation
Steady-state non-linear load
X
---
Transient output voltage and
X
---
recovery
Amplitude and frequency
X
---
modulation
Output voltage waveform
X
---
Output phase displacement
X
---
Output voltage balance under
X
---
balanced load
Output voltage balance under
X
---
unbalanced load
Output voltage regulation (DC)
---
X
Power rating
X
X
Operating time on battery
X
X
Efficiency
X
X
Over-current protection
X
X
Transfer time
X
X
Low voltage shut down
X
X
Leakage current
X
X
Shock
X
X
Vibration
X
X
Airborne noise
X
X
Structureborne noise
X
X
Electromagnetic interference
X
X
emission and susceptibility
9
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