OnLine Power Protector 3 - Manual (Page 9)

OnLine Power
1-3
Danger!
ALL POWER TO THE UNIT MUST BE LOCKED AND TAGGED “OFF” BEFORE
PERFORMING ANY SERVICE OR WORK ON THE UNIT. FAILURE TO DO SO
COULD RESULT IN ELECTROCUTION.
Danger!
EXTREME CAUTION IS REQUIRED WHEN PERFORMING MAINTENANCE.
LETHAL VOLTAGES EXIST WITHIN THE EQUIPMENT DURING OPERATION.
OBSERVE ALL WARNINGS AND CAUTIONS IN THIS MANUAL. FAILURE TO
COMPLY MAY RESULT IN SERIOUS INJURY OR DEATH. OBTAIN QUALIFIED
SERVICE FOR THIS EQUIPMENT AS INSTRUCTED.
Danger!
BE CONSTANTLY AWARE THAT THE UPS SYSTEM CONTAINS HIGH DC AS
WELL AS AC VOLTAGES. WITH INPUT POWER OFF AND THE BATTERY,
DISCONNECTED, HIGH VOLTAGE AT THE FILTER CAPACITORS AND POWER
CIRCUITS SHOULD DISCHARGE WITHIN 30 SECONDS. HOWEVER, POWER
CIRCUIT FAILURES CAN OCCUR, SO YOU SHOULD ALWAYS ASSUME THAT
HIGH VOLTAGE MIGHT STILL EXIST AFTER SHUTDOWN. VERIFY THAT
POWER IS OFF USING AC AND DC VOLTMETERS BEFORE MAKING
CONTACT.
Danger!
IN CASE OF FIRE INVOLVING ELECTRICAL EQUIPMENT, ONLY CARBON
DIOXIDE FIRE EXTINGUISHERS, OR THOSE APPROVED FOR USE ON
ELECTRICAL EQUIPMENT, SHOULD BE USED. USE OF WATER ON FIRES
INVOLVING LIVE HIGH VOLTAGE ELECTRICAL CIRCUITS COULD PRESENT
AN
ELECTROCUTION HAZARD.
Danger!
SOME COMPONENTS WITHIN THE CABINETS ARE NOT CONNECTED TO
CHASSIS GROUND. ANY CONTACT BETWEEN FLOATING CIRCUITS AND
THE CHASSIS IS A LETHAL SHOCK HAZARD.