Receptacles; Power Line Transients - HP StorageWorks XP512 - Disk Array Manual

Receptacles

Power Line Transients

Preparing for Installation
When receptacles are used to connect your disk array components to AC
power, they must include a dedicated ground connection that is insulated
from the receptacle. It is important that the receptacle box be grounded with
an additional ground connection that is nondedicated. The additional
ground can be hard conduit.
Each disk array has two separate connections to AC power, and the second
input must be capable of supporting the entire current demand for both sets
of power supplies.
When installing the receptacles, make sure that each receptacle has its own
neutral (if required) and ground. Using the same neutral/ground for more
than one circuit will cause voltage loss, heat problems, and can result in a
fire hazard. A shared neutral conductor that fails open-circuit will result in
possible over-voltage damage to equipment.
For 3-phase 60Hz operation, the outlet must be either:
• Connector Russell & Stoll 3934 or
• Receptacle Russell & Stoll 3754
The plug type provided with the power cord is a
• Russell & Stoll 3760
• Russell & Stoll 3760PDG
Heavy electrical loads from nearby machinery or equipment (elevators,
electric welders, etc.) can cause intermittent system errors, even if that
equipment is on a separate circuit breaker. When faced with these
conditions, you should provide a separate, completely independent power
panel with an isolated ground and circuit breaker coming directly from the
main building power source or secondary power source.
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