Facility Power Guidelines; Circuit Breaker And Ups Guidelines; Grounding Guidelines - Oracle Server X6-2 Installation Manual

Electrical Power Requirements

Facility Power Guidelines

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 failures, design the input power sources to ensure adequate power is provided to
the power distribution units (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 for the Oracle's Sun Rack II are 4 meters (13.12 feet) long, and 1 to 1.5
meters (3.3 to 4.9 feet) of the cord might be routed within the rack cabinet. The installation site
AC power receptacle must be within 2 meters (6.6 feet) of the rack.

Circuit Breaker and UPS Guidelines

To prevent failures, the design of your power system must ensure that adequate power is
provided to the server. Use dedicated AC breaker panels for all power circuits that supply power
to the server. Electrical work and installations must comply with applicable local, state, or
national electrical codes. The server requires electrical circuits to be grounded to the Earth.
Circuit breakers are supplied by the customer. One circuit breaker is required for each
Note -
server power cord.
In addition to circuit breakers, provide a stable power source, such as an uninterruptable
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.

Grounding Guidelines

The rack must use grounding-type power cords. For example, Oracle's Sun Rack II has three-
wire, grounding-type power cords. Always connect the cords to grounded power outlets.
Because different grounding methods are used, depending on location, check the grounding
type, and refer to documentation, such as local electrical codes, for the correct grounding
Preparing for Server Installation 19