ELECTRICAL SAFETY - University of Arkansasehs.uark.edu/PwrPt/ElectricalSafety.pdf · general safety...
Transcript of ELECTRICAL SAFETY - University of Arkansasehs.uark.edu/PwrPt/ElectricalSafety.pdf · general safety...
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ELECTRICAL SAFETY
UNIVERSITY OF ARKANSAS
OFFICE OF
ENVIRONMENTAL HEALTH AND SAFETY
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GENERAL SAFETY
WHY WORRY ABOUT ELECTRICITY?
MAIN CAUSES OF ELECTRICAL ACCIDENTS
ELECTRICAL EMERGENCIES - WHAT TO DO
TRAINING OVERVIEW
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LONG RECOGNIZED AS A SERIOUS
WORKPLACE HAZARD
EXPOSES EMPLOYEES TO:
• ELECTRICAL SHOCK
• ELECTROCUTION
• FIRES
• EXPLOSIONS
ELECTROCUTIONS RANK
FOURTH (9%) IN CAUSES OF
INDUSTRIAL FATALITIES
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LEADING CAUSES OF
ELECTRICAL ACCIDENTS
• UNSAFE WORK PRACTICES
• UNSAFE EQUIPMENT
• HAZARDOUS ENVIRONMENTS
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UNSAFE WORK PRACTICES
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FAILURE TO DE-ENERGIZE
LOCKOUT & TAG OUT
HAZARDS DURING
MAINTENANCE, REPAIR OR
INSPECTIONS
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USE OF DEFECTIVE OR UNSAFE TOOLS
IMPROPER TOOL FOR THE JOB
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REMOVING THE THIRD PRONG (GROUND PIN)
TO MAKE 3-PRONG PLUG FIT A 2-PRONG OUTLET
A missing third prong from an electrical plug
resulted in the electrocution death of a
worker. He was climbing a ladder to hand a
power drill to another worker when he
received a fatal shock.
Investigators found the extension cord was
missing its grounding prong. The grounding
wire and the frame of the drill were being
electrified off and on by the energizing wire.
The drill was not double insulated.
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OVERLOADING OUTLETS WITH
TOO MANY APPLIANCES
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NOT VERIFYING POWER IS OFF
WHEN MAKING REPAIR
DRILLING INTO A 110 VOLT
A.C. LINE CAN KILL!
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WORKING IN AN
ELEVATED POSITION
NEAR OVERHEAD LINES
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FAILURE TO READ AND FOLLOW ALL SAFETY
SIGNS, SYMBOLS, AND BARRIERS
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FAILURE TO USE GOOD HOUSEKEEPING WITH
RESPECT TO TOOLS AND WORK AREAS
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USING ATTACHED ELECTRICAL CORD TO
RAISE OR LOWER EQUIPMENT
THIS IS NOT A
SUPPORT CABLE
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UNSAFE EQUIPMENT
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INSPECT ALL ELECTRICAL TOOLS
INSPECT PORTABLE EXTENSION CORDS
INSPECT ALL EQUIPMENT, CORDS,
SWITCHES, AND COMPONENTS PRIOR
TO EACH USE
LOOK FOR FAULTY ELECTRIC CORDING,
WIRING OR CONDUIT
LOOK FOR IMPROPER GROUNDING
(REMOVAL OF 3RD PRONG)
LOOK FOR OTHER DEFECTIVE PARTS
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BE EXTREMELY CAREFUL AROUND
UNFAMILIAR EQUIPMENT AND AREAS
DO NOT OVERLOAD OUTLETS
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THE FOLLOWING MUST BE
GROUNDED:
• LAB EQUIPMENT
• REFRIGERATORS
• WASHING MACHINES
• SUMP PUMPS
• HAND-HELD APPLIANCES
• POWER TOOLS
• ANY EQUIPMENT USED IN DAMP OR
WET LOCATIONS
• PORTABLE HAND-HELD LAMPS
GROUNDING
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ALL PULL BOXES, JUNCTION BOXES, AND
FITTINGS MUST BE PROVIDED WITH COVERS
IN COMPLETED INSTALLATIONS, EACH OUTLET BOX
MUST HAVE A COVER, FACEPLATE, OR FIXTURE CANOPY
SPECIAL EQUIPMENT
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Unsafe
Environments
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FLAMMABLE FUMES, COMBUSTIBLE DUST, OR EXCESS OXYGEN CAN
BE IGNITED BY A SPARK. USE VENTILATION TO MINIMIZE HAZARD.
POOR HOUSEKEEPING CAN CREATE UNSAFE ENVIRONMENTS
• BLOCKED ELECTRICAL BOXES
• FLAMMABLE MATERIALS STORED IN EQUIPMENT ROOMS
• LACK OF PROPER HAZARD SIGNS
• EXCESS CLUTTER
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WET WORKING CONDITIONS
CAN CREATE AN UNSAFE ENVIRONMENT
CHECK YOUR SURROUNDINGS
NEVER WORK WITH ELECTRICITY IF YOU OR THE WORK AREA
HAVE BEEN EXPOSED TO WET WEATHER
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MAKE SURE ENERGIZED ELECTRICAL
PARTS CANNOT COME IN CONTACT
WITH YOU OR ANYTHING THAT MAY
COME IN CONTACT WITH YOU
MAKE SURE THERE ARE NO TRIP
HAZARDS
PAY ATTENTION !
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REPORT
SAFETY PROBLEMS
IMMEDIATELY TO
YOUR SUPERVISOR
OR TO
EH&S (575-5448)
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WHAT TO DO IN
AN EMERGENCY
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Do not touch the person
-
they may be
energized
Do not use a conductive tool to free the
person
NEVER USE YOUR BARE HANDS TO
FREE A VICTIM FROZEN BY ELECTRIC
SHOCK
PROTECT YOURSELF !
• DO NOT TOUCH THE PERSON - THEY MAY BE
ENERGIZED
• DO NOT USE A CONDUCTIVE TOOL TO FREE
THE PERSON
NEVER USE YOUR BARE HANDS TO
FREE A VICTIM FROZEN
BY ELECTRIC SHOCK !
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CALL 911
SHOCK VICTIMS MAY SUFFER:
• BURNS OR OTHER OBVIOUS
INJURIES
• LOSS OF CONSCIOUSNESS OR
ALTERED MENTAL STATUS
• DISTURBANCES IN HEART RHYTHM
THAT MAY NOT BE APPARENT OR
MAY BE DELAYED
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WHAT TO DO UNTIL HELP ARRIVES
• CHECK FOR PULSE - IF A PERSON’S HEART HAS STOPPED,
START CPR IF YOU ARE TRAINED
• BREATHING - IF THE PERSON ISN’T BREATHING, BEGIN
MOUTH TO MOUTH RESUSCITATION IF YOU ARE TRAINED
• TREAT FOR SHOCK - KEEP PERSON LYING DOWN IF
UNCONSCIOUS, TURN ON SIDE SO FLUIDS CAN DRAIN
• DO NOT MOVE THE PERSON IF NECK AND SPINE INJURIES
ARE POSSIBLE
Pulitzer Prize photograph, "Kiss of Life"Lineman Randall Champion receives mouth-to-mouth resuscitation from apprentice
lineman J.D. Thompson after receiving an electrical shock that stopped his heart. He later
died in 2002 at 64 years old of congestive heart failure. The photo was taken in 1967
• STAY WITH THE PATIENT UNTIL HELP ARIVES
• INFORM MEDICAL PERSONNEL OF PATIENT CONDITION
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QUESTIONS ?
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THE END