Hvdc Power Supply Suggestions; Dc Power Supply - Inspur NF5180M6 User Manual

The system provides alarm records and query, and the alarm display can be

updated on a real-time basis. The alarm information is protected against loss
when the system is out of power.

8.10.6 HVDC Power Supply Suggestions

Terminal equipment can be connected to power sockets or wiring terminals. Wiring

terminals are recommended.
Do not use a shunt circuit breaker to connect to or control multiple power modules

through a multi-purpose power socket.
Choose DC circuit breakers based on the rated current of the equipment. The 10 A

or 16 A DC breakers are recommended.
Recommended standards for equipment power wiring: Connect the DC output

positive pole to terminal N of the equipment power cable. Connect the DC output
negative pole to terminal L of the equipment power cable. DC system is strictly
forbidden to be grounded.
The upstream input terminal of the power supply system is equipped with a surge

protection device to protect the system against a minimal voltage surge of 10/700
us, 5 kV and a minimal current surge of 8/20 us, 20 kA.
All cables in the power distribution frame (PDF) comply with YD/T 1173

specifications, and the diameters of all power cables meet the requirements for
wire ampacity.

8.10.7 DC Power Supply

The DC power supply should be stable and reliable. The power equipment should be
deployed near the server. The standard DC voltage is -48 VDC with a fluctuation range
of server power between -40 V to –72 V.
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