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CAUTION: Protect the server from power fluctuations and temporary interruptions with a regulating
uninterruptible power supply. This device protects the hardware from damage caused by power surges and voltage
spikes and keeps the system in operation during a power failure.
Electrical grounding requirements
The server must be grounded properly for proper operation and safety. In the United States, you must install the
equipment in accordance with NFPA 70, National Electric Code Article 250, as well as any local and regional building
codes. In Canada, you must install the equipment in accordance with Canadian Standards Association, CSA C22.1,
Canadian Electrical Code. In all other countries, you must install the equipment in accordance with any regional or national
electrical wiring codes, such as the International Electrotechnical Commission (IEC) Code 364, parts 1 through 7.
Furthermore, you must be sure that all power distribution devices used in the installation, such as branch wiring and
receptacles, are listed or certified grounding-type devices.
Because of the high ground-leakage currents associated with multiple servers connected to the same power source,
Hewlett Packard Enterprise recommends the use of a PDU that is either permanently wired to the building's branch circuit
or includes a nondetachable cord that is wired to an industrial-style plug. NEMA locking-style plugs or those complying
with IEC 60309 are considered suitable for this purpose. Using common power outlet strips for the server is not
recommended.
Connecting a DC power cable to a DC power source
WARNING: To reduce the risk of electric shock or energy hazards:
•
This equipment must be installed by trained service personnel, as defined by the NEC and IEC 60950-1, Second
Edition, the standard for Safety of Information Technology Equipment.
•
Connect the equipment to a reliably grounded Secondary circuit source. A Secondary circuit has no direct
connection to a Primary circuit and derives its power from a transformer, converter, or equivalent isolation
device.
•
The branch circuit overcurrent protection must be rated 27 A.
WARNING: When installing a DC power supply, the ground wire must be connected before the positive or negative
leads.
WARNING: Remove power from the power supply before performing any installation steps or maintenance on the
power supply.
CAUTION: The server equipment connects the earthed conductor of the DC supply circuit to the earthing
conductor at the equipment. For more information, see the documentation that ships with the power supply.
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Setup
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