Hp Surestore E Disk Array Xp48 Grounding Requirements; Receptacles - HP StorageWorks XP48 - Disk Array Manual

HP SureStore E Disk Array XP48 Grounding Requirements

Receptacles

36
requires that a dedicated (earth reference) ground be installed as a common
reference point for all system components. You should consult with your
HP CE and your electrician to ensure that your electrical system meets all
local and national safety codes.
Your subsystem must meet all of the following conditions:
• An insulated grounding conductor that is identical in size and
insulation material and thickness to the ungrounded branch-circuit
supply conductors. It should be green, with or without yellow stripes,
and is to be installed as a part of the branch circuit that supplies the
unit or system.
• The grounding conductor mentioned above should be grounded to
earth at the service equipment or other acceptable building earth
ground such as the building frames (in case of a high rise steel-frame
structure).
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
HP SureStore E Disk Array 48: Site Prep Guide