Power Cord Requirements; Electrical Grounding Requirements - HP StorageWorks 9100 - Extreme Data Storage System User Manual

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, see the
product rating label or the user documentation supplied with that option.
WARNING!
To reduce the risk of personal injury, fire, or damage to the equipment, do not 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:
Protect the enclosure from power fluctuations and temporary interruptions with a regulating UPS. This
device protects the hardware from damage caused by power surges and voltage spikes and keeps the
enclosure in operation during a power failure.
When installing more than one enclosure, you may need to use additional power distribution devices to
safely provide power to all devices. Observe the following guidelines:
• Balance the enclosure 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 enclosure.

Power cord requirements

The power cord should be approved for use in your country. The power cord must be rated for the
product and for the voltage and current marked on the electrical ratings label of the product. The voltage
and current rating for the cord should be greater than the voltage and current rating marked on the
product. In addition, the diameter of the wire must be a minimum of 1.00 mm
maximum length may be up to 3.66 m (12 ft).
WARNING!
To reduce the risk of electric shock or damage to the equipment:
• Do not disable the power cord grounding plug. The grounding plug is an important safety feature.
• Plug the power cord into a grounded (earthed) electrical outlet that is easily accessible at all times.
• Unplug the power cord from the power supply to disconnect power to the equipment.
• Do not route the power cord where it can be walked on or pinched by items placed against it. Pay
particular attention to the plug, electrical outlet, and the point where the cord extends from the
storage system.
To connect AC power cords:
1. Connect the power cords to the power supplies.
2. Connect the power cords to the AC power source.

Electrical grounding requirements

The enclosure 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
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9100c Extreme Data Storage System user guide
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