Oracle Exalogic Elastic Cloud, Руководство пользователя

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Table 2-5 (Cont.) PDU Requirements for High Voltage
Specification 15 kVA, 3 ph 22 kVA, 1 ph 24 kVA, 3 ph
Current 24A max. per input 32 A per input 18 A max. per input
Data Center
Receptacle
IEC 309-4P5W-IP44
(32A, 400V, AC, 3ph)
IEC309 32A 3ph 5 Wire
Hubbell HBL532R/C9W or
equivalent.
IEC 309-2P3W-IP44 (32A,
250V, AC, 3ph)
IEC309 32A 1ph 3 Wire
Hubbell HBL332R/C9W or
equivalent.
IEC 309-4P5W-IP44 (32A,
400V, AC, 3ph)
IEC309 32A 3ph 5 Wire
Hubbell HBL532R/C9W
or equivalent.
Number of Outlets
Per Rack
2 6 4
2.4.1 Facility Power Requirements
Electrical work and installations must comply with applicable local, state, or national
electrical codes. Contact your facilities manager or qualified electrician to determine
what type of power is supplied to the building.
To prevent catastrophic failures, design the input power sources to ensure adequate
power is provided to the PDUs. Use dedicated AC breaker panels for all power
circuits that supply power to the PDU. When planning for power distribution
requirements, balance the power load between available AC supply branch circuits. In
the United States and Canada, ensure that the overall system AC input current load
does not exceed 80 percent of the branch circuit AC current rating.
PDU power cords are 4 m (13.12 feet) long, and 1 to 1.5 m (3.3 to 4.9 feet) of the cord
will be routed within the rack cabinet. The installation site AC power receptacle must
be within 2 m (6.6 feet) of the rack.
2.4.2 Circuit Breaker Requirements
To prevent catastrophic failures, the design of your power system must ensure that
adequate power is provided to all of the compute nodes. Use dedicated AC breaker
panels for all power circuits that supply power to the compute nodes. Electrical work
and installations must comply with applicable local, state, or national electrical codes.
Compute nodes require electrical circuits to be grounded to the Earth.
In addition to circuit breakers, provide a stable power source, such as an
uninterruptible power supply (UPS) to reduce the possibility of component failures. If
computer equipment is subjected to repeated power interruptions and fluctuations,
then it is susceptible to a higher rate of component failure.
Note:
Circuit breakers are supplied by the customer. One circuit breaker is required
for each power cord.
2.4.3 Grounding Guidelines
The cabinets for the Exalogic machine are shipped with grounding-type power cords
(three-wire). Always connect the cords to grounded power outlets. Because different
grounding methods are used, depending on location, check the grounding type, and
Electrical Power Requirements
Site Requirements 2-5