ABB Zenith ZTX Series Operation, Maintenance, And Installation Manual page 4

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Z e n i t h Z T X S e r i e s AT S , O P E R AT I O N , M A I N T E N A N C E , A N D I N S TA L L AT I O N G U I D E
—
Read these safety instructions
carefully before using this product!
Danger
Indicates a hazardous situation that,
if not avoided, will result in death or
serious injury.
HAZARD OF ELECTRIC SHOCK,
EXPLOSION, OR ARC FLASH
• Apply appropriate personal protective
equipment and follow safe electrical
work practices.
• This equipment must only be installed
and serviced by qualified electrical per-
sonnel.
• Before performing visual inspections,
tests, or maintenance on the equip-
ment, disconnect all sources of electric
power. Assume that all circuits are live
unless they are completely de-ener-
gized, tested, grounded, and tagged.
Pay particular attention to the design of
the power system. Consider all sources
of power, including the possibility of
backfeeding.
• Disconnect all sources of electric power
before removing or making source side
or load side connections to the transfer
switch.
• Always use a properly rated voltage
sensing device at all line and load con-
nections to confirm transfer switch is
disconnected from all live electrical
sources.
• Turn off power supplying transfer
switch before doing any other work on
or inside switch.
Failure to follow these instructions could
result in death or serious injury.