Environmental
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7
Environmental
The following subsections define environmental specifications and test parameters,
based on the typical conditions to which a power supply may be subjected during
operation or shipment.
7.1
Temperature – RECOMMENDED
•
Operating a10 °C to +50 °C (At full load, with a maximum temperature
rate of change of 5 °C/10 minutes, but no more than 10 °C/hr.)
•
Non-operating ambient -40 °C to +70 °C (Maximum temperature rate of change of
20 °C/hr.)
7.2
Thermal Shock (Shipping) - RECOMMENDED
•
Non-operating -40 °C to +70 °C
•
15 °C/min ≤ dT/dt ≤ 30 °C/min
•
Tested for 50 cycles; Duration of exposure to temperature extremes for each half
cycle shall be 30 minutes.
7.3
Humidity – RECOMMENDED
•
Operating To 85% relative humidity (non-condensing)
•
Non-operating to 95% relative humidity (non-condensing)
•
Note: 95% relative humidity is achieved with a dry bulb temperature of 55 °C and a
wet bulb temperature of 54 °C.
7.4
Altitude – RECOMMENDED
•
Operating to 10,000 ft.
•
Non-operating to 50,000 ft.
7.5
Mechanical Shock – RECOMMENDED
•
Non-
operating 50 g, trapezoidal input; velocity change ≥ 170 in/s
•
Three drops on each of six faces are applied to each sample.
Содержание ATX 3.0
Страница 69: ...LFX12V Specific Guidelines 2 0 336521 69 Figure 12 2 Mechanical Details...
Страница 70: ...LFX12V Specific Guidelines 2 0 70 336521 Figure 12 3 PSU Slot Feature Detail...
Страница 71: ...LFX12V Specific Guidelines 2 0 336521 71 Figure 12 4 Recommended Chassis Tab Feature...
Страница 77: ...SFX12V Specific Guidelines 4 0 336521 77 Figure 14 3 Top Mount Fan Profile Mechanical Outline...
Страница 82: ...SFX12V Specific Guidelines 4 0 82 336521 Figure 14 10 PS3 Mechanical Outline...
Страница 84: ...TFX12V Specific Guidelines 3 0 84 336521 Figure 15 2 Dimensions and Recommended Feature Placements not to scale...
Страница 87: ...TFX12V Specific Guidelines 3 0 336521 87 Figure 15 6 Suggested Mounting Tab chassis feature...
