North American Ac Power Cabling; Branch Circuit Requirements - HP StorageWorks XP10000 Site Preparation Manual

North American AC power cabling

Caution

Branch circuit requirements

Electrical specifications
The XP10000 racks each require 20-amp, single-phase 200 VAC power
supplied by four power cords with plugs, four receptacles, and four main
disconnect devices (circuit breakers). If the second rack contains only one
disk chassis, only two power cords and breakers are required, but four are
required if you plan to add another disk chassis.
The XP10000 comes from the HP factory with the AC power cords and
plugs you have ordered. Plug types rated for 30 Amps are specified under
the heading, "AC inputs"
connects to the XP10000 power distribution unit input, which is a type
IEC320 C20 connector.
Connect each AC power cable to a separate receptacle on a separate circuit
breaker, and connect each pair of power cords (the left pair and the right
pair) to separate distribution panels to ensure power fault tolerance.
Do not apply power until instructed to do so by HP. An HP representative
should be present whenever the disk array is being connected to a new
power source.
To protect the disk array, your building must be wired correctly. Each
supply ("hot") conductor must be protected by a short-circuit protective
device and by an overcurrent protective device. Table 16
provides specifications for the overcurrent protective devices required for
single-phase operation.
All protective devices must comply with national standards of the country
where the units are to be installed. If a protective device interrupts any
supply conductor, it must also interrupt all other supply conductors.
(page 63). The opposite end of the power cord
(page 62)
65