Power Requirements; Electrical Grounding Requirements - HP StorageWorks 600 - Modular Disk System User Manual

CAUTION:
• Do not permit optional equipment to impede airflow around the MDS600 or to increase
the internal rack temperature beyond the maximum allowable limits.
• Do not exceed the manufacturer's TMRA.

Power requirements

Installation of this equipment must comply with local and regional electrical regulations governing the
installation of IT equipment by licensed electricians. This equipment is designed to operate in installations
covered by NFPA 70, 1999 Edition (National Electric Code) and NFPA-75, 1992 (code for Protection of
Electronic Computer/Data Processing Equipment). For electrical power ratings on options, refer to the
product rating label or the user documentation supplied with that option.
WARNING:
overload the AC supply branch circuit that provides power to the rack. Consult the electrical
authority having jurisdiction over wiring and installation requirements of your facility.
CAUTION:
regulating UPS. This device protects the hardware from damage caused by power surges and
voltage spikes and keeps the MDS600 in operation during a power failure.
When installing more than one MDS600, you may need to use additional power distribution devices to
safely provide power to all devices. Observe the following guidelines:
•
Balance the MDS600 power load between available AC supply branch circuits.
•
Do not allow the overall system AC current load to exceed 80 percent of the branch circuit AC
current rating.
•
Do not use common power outlet strips for this equipment.
•
Provide a separate electrical circuit for each power supply in the MDS600.

Electrical grounding requirements

The MDS600 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 MDS600 connected to the same
power source, HP recommends the use of a power distribution unit (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 MDS600 is not recommended.
To reduce the risk of damage to the equipment when installing third-party options:
To reduce the risk of personal injury, fire, or damage to the equipment, do not
Protect the MDS600 from power fluctuations and temporary interruptions with a
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