39
• Apply appropriate personal protective
equipment and follow safe electrical work
practices.
• This equipment must only be installed and
serviced by qualified electrical personnel.
• Before performing visual inspections,
tests, or maintenance on the equipment,
disconnect all sources of electric power.
Assume that all circuits are live unless they
are completely de-energized, tested,
grounded, and tagged. Pay particular at-
tention 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 connec-
tions to confirm transfer switch is discon-
nected from all live electrical sources.
• Turn off power supplying transfer switch
before doing any other work on or inside
switch.
HAZARD OF ELECTRIC SHOCK,
EXPLOSION, OR ARC FLASH
Danger
Shock, Explosion or Arc Flash hazard
Failure to follow the instruction will result in
death or serious injury.
Danger
Risque de choc, d'explosion ou d'arc électrique
Le non-respect des instructions peut entraîner
la mort ou des blessures graves.