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Chapter 4: System Safety
4-1
Chapter 4
System Safety
4-1 Electrical Safety Precautions
!
Basic electrical safety precautions should be followed to protect yourself from
harm and the SuperWorkstation 7047A-73/7047A-T from damage:
• Be aware of the locations of the power on/off switch on the chassis as well
as the room's emergency power-off switch, disconnection switch or electrical
outlet. If an electrical accident occurs, you can then quickly remove power from
the system.
• Do not work alone when working with high voltage components.
• Power should always be disconnected from the system when removing or in-
stalling main system components, such as the serverboard, memory modules
and the DVD-ROM and fl oppy drives. When disconnecting power, you should
fi rst power down the system with the operating system. The unit has more than
one power supply cord. Disconnect both power supply cords before servicing
to avoid electrical shock.
• When working around exposed electrical circuits, another person who is familiar
with the power-off controls should be nearby to switch off the power if neces-
sary.
• Use only one hand when working with powered-on electrical equipment. This
is to avoid making a complete circuit, which will cause electrical shock. Use
extreme caution when using metal tools, which can easily damage any electrical
components or circuit boards they come into contact with.
• Do not use mats designed to decrease electrostatic discharge as protection from
electrical shock. Instead, use rubber mats that have been specifi cally designed
as electrical insulators.
• The power supply power cord must include a grounding plug and must be
plugged into grounded electrical outlets.