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Accommodation & Hospitality Services
STAFF BRIEFING – No 16
Electrical Safety
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What is electricity?: The basics.
A source of Energy essential to modern lifeIt is extremely Dangerous because it cannot be seen or smeltThere are about 10–12 Fatalities at Work per YearThe flow of electricity must have a complete path.Electricity flows through Conductors – water, metals, the human bodyInsulators are non-conductors
SummaryMovement of electronsBest in soft metalsMeasured in Amperes or AmpsSymbolised by ‘A’, i.e. a 13A fuse
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Conductors and Insulators
Conductors conduct electricity
Insulators don’t
Metals conduct
Wood, plastic, air, oil and rigid glass do not conduct electricity as well (but they
still can!!!)
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ELECTRIC SHOCKS
More than 3 mA =
More than 10 mA =
More than 30 mA =
More than 50 mA =
100 mA to 4 amps =
Over 4 amps =
Painful shock
Muscle contraction/spasm
Temp lung paralysis
Poss. Heart dysfunction (can be fatal)
Certain heart dysfunction (fatal)
Heart paralysis, server burns (fatal)
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• Electricity kills and injures people. Around 1,000 electrical accidents at work are reported to the Health and Safety Executive (HSE) each year and about 25 people die of their injuries.
• SHOCK. Electric shock occurs when the human body becomes part of the path through which current flows.
• The direct result can be electrocution.• The indirect result can be injury resulting from a fall or
movement into machinery because of a shock
• BURNS. Burns can result when a person touches electrical wiring or equipment that is energized.
• ARC-BLAST. Arc-blasts occur from high- amperage currents arcing through the air. This can be caused by accidental contact with energized components or equipment failure.
DANGER – HIGH VOLTAGE
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• EXPLOSIONS. Explosions occur when electricity provides a source of ignition for an explosive mixture in the atmosphere.
• FIRES. Electricity is one of the most common causes of fires both in the home and in the workplace. Defective or misused electrical equipment is a major cause.
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Disconnect power source….
Switch off when:
Descaling kettlesCleaning microwavesDefrosting a freezerChanging a lamp (light bulb)Cleaning extract fansCleaning out a toaster
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DO
Do – plug in equipment with the power switch to OFF
Do - remove the plug with the power switch to OFF
Do – remove the plug from the socket by the plug and NEVER by pulling the wire
Do – Check for frayed, cracked or exposed wiring on the equipment cords and…
Do – Report any you find
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DO NOT
Do not – drape power cords over radiators, hot pipes or sharp objects
Do not – attempt any works for which you are not qualified or have not been trained
Do not – access any areas for which you are not authorised
Do not – plug into defective/damaged sockets
Do not – attempt to carry out any works on or near electrical items where there is water
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• Only qualified persons may perform testing
work on electric circuits or equipment
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• Employees working in areas where there are potential electrical
hazards shall be provided with, and shall use, PPE that is
appropriate for the specific parts of the body to be protected and for
the work to be performed
• PPE shall be maintained in a safe, reliable condition and shall be
periodically inspected or tested
• When working near exposed energized conductors or circuit parts,
each employee shall use insulated tools or handling equipment if the
tools or handling equipment might make contact with such
conductors or parts
• The following alerting techniques shall be used to warn and protect
employees from hazards which could cause injury due to electric
shock, burns, or failure of electric equipment parts:
– Safety signs and tags
– Barricades
– Attendants
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1)Safety signs, safety symbols, or accident prevention tags shall be used where necessary to warn employees about electrical hazards which may endanger them2)Barricades shall be used in conjunction with safety signs where it is necessary to prevent or limit employee access to work areas exposing employees to uninsulated energized conductors or circuit parts3) If signs and barricades do not provide sufficient warning and protection from electrical hazards, an attendant shall be stationed to warn and protect employees
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NOTES/QUESTIONS
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NAME DATE SIGNATURE
Attendee List