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Resumen del manual
conductors. The green (green/yellow) wire ground conductors should be
sized per applicable codes (based on circuit over current device ratings).
Computer equipment ground Ground all computer equipment with
the green (green/yellow) wire included in the branch circuitry. The green
(green/yellow) wire ground conductors should be connected to the
appropriate power panel and should be parity-sized (based on circuit
over current device ratings).
Cabinet interconnect grounding
Signal interconnect between system cabinets requires high frequency
ground return paths. Connect all cabinets to site ground.
NOTE
In some cases power distribution system green
(green/yellow) wire ground conductors are too long and
inductive to provide adequate high frequency ground
return paths. Therefore, the customer may choose to
provide a ground strap for connecting the system cabinet
to the site grounding grid (customer-supplied). Installation
of this ground strap is optional and there is a chance that
it may cause ground loops.
Power panels located in close proximity to the computer equipment
should also be connected to site grounding grid. Methods of providing a
sufficiently high frequency ground grid are described in the next
sections.
Raised floor grounding If a raised floor system is used, install a
complete signal grounding grid for maintaining equal potential over a
broad band of frequencies. The grounding grid should be connected to the
equipment cabinet and electrical service entrance ground at multiple
connection points via minimum #6 AWG (16mm2) wire ground
conductor. See the raised floor grounding illustration for details.
Hewlett-Packard recommends the following three approaches:
• Excellent—Add a grounding grid to the subfloor. The grounding grid
should be made of aluminum strips mounted to the subfloor. The
strips should be 0.032 in. (0.08 cm) thick and a minimum of 3.0 in.
(8.0 cm) wide.
58
...Otros modelos de este manual:
Computadoras - HP Server rp8420 (680.75 kb)