O&M Manual –90E1720004
Section 3 Safety Precautions Page 9 of 52
Section 3 Safety Precautions
This section contains important safety precautions that must be followed before attempting to
lift, move, install, use, or maintain Russelectric bypass-isolation transfer switches and
associated components.
HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH
Follow NFPA 70E safety procedures and safe work practices and
wear appropriate personal protective equipment (PPE).
This equipment must be installed and serviced only by qualified
electrical personnel.
Perform such work only after reading and understanding all of the
instructions contained in this manual.
Turn off all power supplying this equipment before working on or
inside equipment.
Always use a properly rated, voltage sensing, device to confirm
power is off.
Before performing visual inspections, tests, or maintenance on
this equipment, disconnect all sources of electric power. Assume
all circuits are live until they are completely de-energized, tested,
and tagged. Pay particular attention to the design of the power
system. Consider all sources of power, including the possibility of
backfeeding.
Always practice lock-out/tag-out procedures according to OSHA
and NFPA70E requirements.
Conduct electrical testing to confirm no short-circuits were
created during installation, maintenance, or inspection.
Be aware of potential hazards; wear personal protective
equipment, and take adequate safety precautions.
Carefully inspect your work area, and remove any tools and
objects left inside the equipment.
Replace all devices, doors, and covers before turning on power to
this equipment.
All instructions in this manual are written with the assumption
that the customer has taken these measures before performing
maintenance or testing.
Failure to follow these instructions will result in death or serious
injury.
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