Power Requirements; Electrical Grounding Requirements; Connecting A Dc Power Cable To A Dc Power Source - Hitachi HA815 G3 Series User Manual

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CAUTION: To reduce the risk of damage to the equipment when installing third-party options:
Do not permit optional equipment to impede airflow around the server 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
information technology 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: 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 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, use 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.
Setup
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