Planning the Server Installation
When installing more than one server, you may need to use additional power
distribution devices to safely provide power to all devices. Observe the following
guidelines:
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The power load must be balanced between available AC supply branch circuits.
The overall system AC current load must not exceed 80 percent of the branch
circuit AC current rating.
Grounding Requirements
For proper operation and safety, the server must be properly grounded. 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, the equipment must be installed in accordance with Canadian Standards
Association, CSA C22.1, Canadian Electrical Code. In all other countries, the
installation must follow any regional or national electrical wiring codes, such as the
International Electrotechnical Commission (IEC) 364, parts 1 through 7.
Furthermore, you must ensure 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 power distribution
unit (PDU) that is either permanently wired to the branch circuit of the building 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. HP does not recommend using common power outlet strips for this
equipment.
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HP ProLiant DL580 Generation 2 Server Setup and Installation Guide
HP CONFIDENTIAL
Writer: Karen Hale File Name: e-ch4 Planning the Server Installation.doc
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