Power Supply Requirements; Ac Power Supply Requirement; Dc Power Supply Requirement - Inspur NF5180M6 User Manual

Figure 8-2 Multi-power Safety Protection
Caution: Shock Hazard! Disconnect all power supply cords before servicing.
8.10

Power Supply Requirements

8.10.1 AC Power Supply Requirement

An AC power supply that consists of mains supply, uninterruptible power supply (UPS),
and self-supplied electric generator set can be used as an integrated power supply.
The AC power supply must feature simple connection line, safe operation, flexible
scheduling, and easy maintenance in addition to meeting the requirements of site
load. Low voltage power supply should adopt three-phase five-wire mode or
monophase three-wire mode.
AC power supply system should work under nominal voltage and rated frequency.
Table 8-11 Nominal Voltage and Rated Frequency
Nominal Voltage
110 V, 208 V
220 V, 380 V
A UPS is typically used as an AC potential power of network products. A UPS should be
in the same phase as the mains supply. The time used for switching between the UPS
and the mains supply should be less than 8 ms. Otherwise, the server will reboot or
reset.

8.10.2 DC Power Supply Requirement

DC power supply system should work under nominal voltage of -48 V, 270 V and 336 V.
When determining the power distribution capacity in the server room, consider the
working current and fault current. An independent device must have an independent
AC distribution protection apparatus. The maximum capacity of the current over the
configuration protection switch should be greater than the maximum capacity of the
current over the protection switch of each device. When designing the capacity of an
AC power supply system, consider the maximum load of the system in dynamic mode
and static mode and reserve a certain margin. The cabling on the power distribution
panel must be figured out based on the maximum power supply load. This helps you
determine the type and size of the conducting wire.
Voltages of an AC-powered server and power equipment should meet the following
requirements:
Rated Frequency
60 Hz
50 Hz
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