Hobart GPU-600 Series, Operation And Maintenance Manual

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OM-2244 / Operation and Maintenance Manual
DCS 600/ Series 500082/ Solid State Transformer-Rectifiers
December 15, 2014 Safety Warnings
Page 2
b) Output Cables and Terminals
Inspect cables frequently for damage to the insulation and the connectors. Replace or repair cracked
or worn cables immediately. Do not overload cables. Do not touch output terminal
s while equipment
is energized.
3) Service and Maintenance
This equipment must be maintained in good electrical condition to avoid hazards stemming from
disrepair. Report any equipment defect or safety hazard to the supervisor and discontinue use of the
equipment until its safety has been assured. Repairs should be made by qualified personnel only. Before
inspecting or servicing this equipment, take the following precautions:
a) Please lock-out and Tag procedure, Shut off all power at the disconnecting switch or line breaker
before inspecting or servicing the equipment.
b) Lock switch OPEN (or remove line fuses) so that power cannot be turned on accidentally.
c) Disconnect power to equipment if it is out of service.
d) If troubleshooting must be done with the unit energized, have another person present who is trained
in turning off the equipment and providing or calling for first aid.
4) Fire And Explosion Prevention
Fire and explosion are caused by electrical short circuits, combustible material near this equipment, or
unsafe operating conditions. Overloaded or shorted equipment can become hot enough to cause fires by
self destruction or by causing nearby combustibles to ignite. For electrically-powered equipment, provide
primary input protection to remove short circuited or heavily overloaded equipment from the line.
5) Bodily Injury Prevention
Serious injury can result from contact with live circuit components inside this equipment. Shut DOWN this
equipment for inspection and routine maintenance. When equipment is in operation, use extreme care in
doing necessary troubleshooting and adjustment.
6) Medical and First Aid Treatment
First aid facilities and a qualified first aid person should be available for each shift for immediate treatment
of all injury victims. Electric shock victims should be checked by a physician and taken to a hospital
immediately if any abnormal signs are observed.
EMERGENCY
FIRST AID
CALL EMERGENCY RESCUE SQUAD IMMEDIATEL. Seek additional assistance. Use
First Aid techniques recommended by American Red Cross until medical help arrives.
IF BREATHING IS DIFFICULT, give oxygen, if available, and have victim lie down.
FOR ELECTRICAL SHOCK, turn off power. Remove victim; if not breathing, begin
artificial respiration, preferably mouth-to-mouth. If no detectable pulse, begin external
heart massage.