Military power distribution systems are subject to extreme variances and disturbances caused by devices that share the system. As such, there are a number of military test standards to ensure that equipment intended for installation on these systems can function without failure or abnormal operation. These standards are applicable to the specific platform that the Equipment Under Test (EUT) is intended for.
MIL-STD-1275
MIL-STD-1275 “Characteristics of 28 Volt DC Power Input to Utilization Equipment in Military Vehicles” is, as the title suggests, intended for equipment designed for military vehicles. Test procedures include testing equipment to simulated starting surges, high and low operating voltages, voltage ripple, voltage spikes, voltage surges, and reverse polarity. For
Testing also includes measurement of voltage ripple generated by the EUT. Emitted ripple between 30Hz to 1kHz are required to be below 2 Volts peak to peak. The standard also places limits on voltage spikes emitted from the EUT. The maximum allowed spike must fall within voltage/time variables and not exceed 125 millijoules.
MIL-STD-1399-300
This standard establishes requirements and test methods for equipment intended for shipboard use. The standard is divided into two parts. Part 1 is for equipment operating with low voltages (110 V to 440V). Part 2 deals with equipment operating at 4,160 to 13,800 Vrms. Testing is performed to characterize normal electrical performance, ensure operability at high voltages, evaluate tolerance and recovery when exposed to transients, insulation voltage testing, operation under emergency conditions, current waveform tests per MIL-STD-461, and voltage and frequency modulations.
MIL-STD-704
MIL-STD-704 “Aircraft Electrical Power Characteristics” evaluates equipment for power distribution systems present on U.S. military aircraft platforms. Test protocols vary depending on power levels and types (AC/DC/frequency/voltage). For any of these power categories as many as 18 various procedures may be performed.
Consideration for classes of equipment are given based on criticality of equipment function. However, under no case may equipment suffer damage rendering it inoperable or causing an unsafe condition.
CVG Strategy EZ-Test Plan Templates
CVG Strategy provides a wide array of test plan templates that meet industry standards including plans for military power distribution systems. This documentation ensures that testing is performed accurately and that necessary data is collected. These documents help communicate test requirements to test facility operators and test engineers. Test plans are available for the following standards:
- MIL-STD-810 Environmental Engineering Considerations and Laboratory Tests
- MIL-STD-461
- MIL-STD-704
- MIL-STD-1275
- MIL-STD-1399-300B
- IEC 60529
Platform Specific Test Plans
Several categories of test plans are available for developmental test and evaluation of defense products. These include:
Ingress Protection test plans are available for testing per IEC 60529 for enclosure testing against dust, penetration, water splash, water jet spray, and immersion.
MIL-STD-810 Training
CVG Strategy offers a two-day Training for MIL-STD-810 Program designed to provide you with a solid basis to build your knowledge and expertise. This live training webinar will give you and your employees who are new to environmental and dynamic testing a jump start towards understanding and learning the very complex and lengthy testing standard and its methods.