Electrical Grounding Requirements; Warnings And Cautions - HP ProLiant ML310 Generation 3 User Manual

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Provide a separate electrical circuit for the server.

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, 1999
Edition (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, HP 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.

Warnings and cautions

WARNING: To reduce the risk of personal injury or damage to
the equipment, be sure that:
• The leveling jacks are extended to the floor.
• The full weight of the rack rests on the leveling jacks.
• The stabilizing feet are attached to the rack if it is a single-rack
installation.
• The racks are coupled together in multiple-rack installations.
• Only one component is extended at a time. A rack may become
unstable if more than one component is extended for any
reason.
WARNING: To reduce the risk of personal injury or equipment
damage when unloading a rack:
Server setup 29