Electrical Safety - IBM xSeries 200 Hardware Maintenance Manual

v Do not wear jewelry, chains, metal-frame eyeglasses, or
metal fasteners for your clothing.
Remember:Metal objects are good electrical
conductors.
v Wear safety glasses when you are: hammering, drilling
soldering, cutting wire, attaching springs, using solvents,
or working in any other conditions that might be
hazardous to your eyes.
v After service, reinstall all safety shields, guards, labels,
and ground wires. Replace any safety device that is
worn or defective.
v Reinstall all covers correctly before returning the
machine to the customer.

Electrical safety

CAUTION:
Electrical current from power, telephone, and
communication cables can be hazardous. To avoid
personal injury or equipment damage, disconnect the
attached power cords, telecommunication systems,
networks, and modems before you open the server
covers, unless instructed otherwise in the installation
and configuration procedures.
Observe the following rules when working on electrical
equipment.
Important: Use only approved tools and test equipment.
v Find the room emergency power-off (EPO) switch,
disconnecting switch, or electrical outlet. If an electrical
accident occurs, you can then operate the switch or
unplug the power cord quickly.
v Do not work alone under hazardous conditions or near
equipment that has hazardous voltages.
v Disconnect all power before:
– Performing a mechanical inspection
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Hardware Maintenance Manual: xSeries 200
Some hand tools have handles covered with a
soft material that does not insulate you when
working with live electrical currents.
Many customers have, near their equipment,
rubber floor mats that contain small conductive
fibers to decrease electrostatic discharges. Do
not use this type of mat to protect yourself
from electrical shock.