| Department of Defense MIL-STD-1275 Military Ground Vehicles 28Volt DC Characteristics | |||||
|---|---|---|---|---|---|
| MIL-STD-1275 Version | MIL-STD- 1275A | MIL-STD- 1275B | MIL-STD- 1275C | MIL-STD- 1275D | MIL-STD- 1275E |
| Published Date | 17-September- 1996 | 20-November- 1997 | 23-June-2006 | 29-August-2006 | 22-March- 2013 |
| 28 VDC mean | |||||
| Normal Range Voltage | 23-33, Change Notice 2 | 25-30 | 25-30 | 25-30 | 20-33 |
| Ripple Voltage | 2V pk to pk(50Hz to 200KHz) | 2V pk to pk(50Hz to 200KHz) | 2V pk to pk(50Hz to 200KHz) | 2V pk to pk(50Hz to 200KHz) | MIL-STD-461, CS101 limits, 30Hz to 250Khz, Figure CS101- 1 |
| Initial Engagement Surge Voltage | 6 for 1 second | 6 for 1 second | 6 for 1 second | 6 for 1 second | 12 for 1 second |
| Cranking Surge Voltages | 16 for 30 seconds | 16 for 30 seconds | 16 for 30 seconds | 16 for 30 seconds | 16 for 30 seconds |
Note 1: Refer to MIL-STD-1275 for further information concerning electrical DC power characteristics.
| Commercial Standard RTCA DO-160 Power Input Characteristics | |||
|---|---|---|---|
| RTCA-DO-160 Version | DO-160E | DO-160F | DO-160G |
| Published Date | 09-December- 2004 | 06-December- 2007 | 08-December- 2010 |
| 115 Line to Neutral (rms) 400Hz | |||
| Normal Voltage Steady State | 100-122 | 100-122 | 100-122 |
| Frequency Steady State | 390-410 | 390-410 | 390-410 |
| Abnormal Voltage Steady State | 97-134 | 97-134 | 97-134 |
| Abnormal Frequency Steady State | 370-430 | 370-430 | 370-430 |
| 28 VDC mean | |||
| Normal Voltage Steady State | 22-30.3 | 22-30.3 | 22-30.3 |
| Normal Ripple Voltage | ≤4V pk to pk | ≤4V pk to pk | ≤4V pk to pk |
| Abnormal Voltage Steady State | 20.5-32.2 | 20.5-32.2 | 20.5-32.2 |
| Emergency Voltage | 18 | 18 | 18 |
| 270 VDC mean | |||
| Normal Voltage Steady State | N/A | 235-285 | 235-285 |
| Ripple Voltage | N/A | ≤16 pk to pk | ≤16 pk to pk |
| Emergency Voltage | N/A | 235 | 235 |
Note 1: Refer to DO-160, Section 16.0 for further information concerning electrical power characteristics.