SCANNER SAFETY AND LOCAL CONTROLS
Fig. 17. Scanner Head Voltage Zones
Table. 3. Electrical Hazard Voltage Precautions
Work in this area exposes the worker
to high voltage and current levels that
can cause serious and/or fatal injury.
Work on wiring or components on the
input power rail requires de-
energizing the power through LOTO
of the mill circuit breaker upstream of
the scanner. Work on subsystem
circuits, for example, the motor drive,
requires, at minimum, powering down
scanner AC
Work in this area may expose the
worker to arcing or mild shock
hazards
Work on wiring and components in
this area requires, at minimum, de-
energizing the sub-circuit through
the cable end breaker or, preferably,
powering down scanner AC
2.2.2.2 Static Discharge
Some mill processes generate static electricity. Be aware of the risk of shock from static
discharge when working close to mill processes.
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