Eliminating andor reducing these hazards require a basic knowledge of electric circuits. If you do not recognize, evaluate, and control hazards, you may be injured or killed by the electricity itself, electrical fires, or falls. Simply stated, voltage e in volts is equal to the current i in amperes multiplied by the resistance r in ohms. Ask each group to identify at least three things that could have been done to prevent this death. To understand electricity and electrical safety, you must thoroughly understand ohms law. Electricity has killed three people in the mining industry since august 7, 2019. The dangers of electricity, electrical shock, and the resulting injuries will be discussed. Hazards from static electricity in industries, such as air conditioning, the manufacture of explosives, grain and flour storage, textiles, and printing, static electricity, under many. Electricity in the workplace health and safety authority. When an electrical engineer works, they have to follow the safe standard operating procedures. Our online electrical safety trivia quizzes can be adapted to suit your requirements for taking some of the top electrical safety quizzes. Electrical workers safety handbook 1 a c k n o w l e d g m e n t handbook acknowledgment this is to acknowledge that i have received my copy of the electrical workers safety handbook. Gas research institute report 920460 technical perspectives page iv, line 7. Safety tips have all electrical work done by a qualified electrician.
Electrical safety basic awareness provides basic electrical hazard awareness information in accordance with osha 29 cfr 1910 subpart s. But sometimes a persons body an efficient conductor of electricity mistakenly becomes part of the. Arc flash hazards arc flash is the result of a rapid release of energy due to an arcing fault between one conductor and another or to neutral or a ground. Spills on floors or tripping hazards, such as blocked aisles or cords running across the floor. Facts about electrical safety give the readers the information about the ways that people can do to avoid any electrical hazards. Do watch out for power lines when using a ladder, chainsaw or other outdoor equipment. Common electrical hazards its your life protect it. Electrical shock the point at which a person contacts a source of electrical energy. Conductors substances, such as metals, that have little resistance to electricity.
Common hazards cm 17549 1211 circuit breakers a circuit breaker is a protective device designed to protect the circuit and equipment when it becomes overloaded as a result of too many appliances or equipment on the circuit, as well as when a short develops in a wire. The flash causes an explosive expansion of air and metal. Furthermore, efforts to generate more electricity are having significant. Ohms law is the most important and most often applied law in electricity. Burn hazards associated with electricity human skin provides great protection from normal elements.
An understanding of these principles is essential for comprehension of oshas electrical safety standards. A safe work environment is not always enough to control all potential electrical hazards. Dynamic electricity is the uniform motion of electrons through a conductor this is known as electric current. This section provides a summary of those precautions. Home electrical safety checklist keeping you and your family safe, roombyroom u. Safety training resources including powerpoints, audio presentations, tool box talks, meetings, handouts, and quizzes, all complete with trainers resources for easy training. Electricity april, 2012 1 introduction the paradox of electricity is that modern civilisation has become totally dependent on the continuous and increasing availability of one of the most lethal physical agents that a human can contact.
The construction industry is most at danger from electrical hazards, accounting for 52% of all electrical fatalities in the us workplace. Under the electricity at work regulations 1989, employers need to take action for. However, we need to be cautious and keep safety in mind. Pdf electrical safety hazards handbook yasir ahmed. Electrical injuries an arc flash is a release of energy caused by an electric arc figure 262. Electricity can kill or severely injure people and cause damage to property. Georgia department of administrative services 3 current the movement of electrical charge. Nfpa, 1 batterymarch park, quincy, ma 02169 purpose provide assistance in controlling the hazards associated with the generation, accumulation, and discharge of static electricity contains. Do not handle electrical equipment when hands, feet or body are wet or perspiring, or when standing on a wet floor. Avoiding static ignition hazards in chemical operations. Avoid water at all times when working with electricity. Hazards of electricity and static electricity, 6th edition. We rely on electricity, but sometimes underestimate its capability of causing injury. Electrical hazards safety toolbox talks meeting topics free safety topics, toolbox talks, safety meetings, tailgate topics and safety resources including presentations, photographs and documents.
In 1999, for example, 278 workers died from electrocutions at work, accounting for almost 5 percent of all onthejob fatalities. Electrical safety site electricity is a familiar and necessary part of everyday life, but electricity can kill or severely injure people and cause damage to property. May 23, 2014 2 introduction types of current dangers of electricity to the living tissue electric shock conditions that effect the shock saving the electrified person protection against electrical hazards electric hazard control things to be avoided safety measures regular safety inspection references 3. An electrician contacted an energized component of a 4,160 vac electrical circuit while adjusting the linkage between the. Electrical hazards awareness page 32 of 49 efcog electrical safety improvement project clothing. Prior to this project, standard safety procedures involved wrapping the pipe with wet soapy burlap. Britton center for chemical process safety of the american institute of chemical engineers 3 park avenue, new york, new york 100165901 usa. This guide is not meant to be either a substitute for or a legal interpretation of the occupational safety and health regulations. Uw personnel need to be aware of the hazards electricity poses, such as shock, fire and explosion, and either eliminate or control those hazards. However, you can take simple precautions when working with or near electricity and electrical equipment to significantly reduce the risk of injury to you, your workers and others around you. Safety rules help you control your and others risk of injury or death from workplace hazards.
Some employees engineers, electricians, electronic technicians, and power line workers, among them work with electricity directly. Participants will develop understanding of the requirements of osha sub part s and nfpa, 70e and will be able to identify and reduce or eliminate electrical safety hazards in their workplace. Do not stick fingers or other objects into light sockets or electric outlets. Electrical safety multiple choice questions and answers for competitive exams. If these charges cannot move or flow to ground, the static charges continue to accumulate, and will eventually develop enough energy to jump as a spark to another nearby object. These are the most common and will be present in most workplaces at one time or another. Electrical shock happens when current passes through the body. A shock can result in paralysis of muscles and lead to a falls from height.
Electrical hazards a major cause of accidents involving electricity comes from the failure to identify the hazards associated with live electrical equipment and wiring figure 261. Avoiding static ignition hazards in chemical operations a ccps concept book laurence g. Developed to compliment safety training, hazards of electricity and static electricity is the perfect reference tool and training aid for increasing operators awareness of the hazards of electricity and static electricity in the chemical and process industries. They include unsafe conditions that can cause injury, illness, and death. Safety must not be compromised and some ground rules need to be followed first. Conductors are materials that allow the movement of electricity through it. In the laboratory, workers may be exposed to electrical hazards including electric shock, arc blasts, electro cutions, fires and explosions. The body becomes a part of, or completes the electrical circuit, causing a portion of the electrical energy to flow through the body. If you use the safety model to recognize, evaluate, and control hazards, you are much safer. An exchange for safety professionals on solving their safety issues.
Arcflash and other electrical safety hazards 27 electrical safety hazards 27 electric shock 27 arcflash and arc blasts 28 arcflash metrics 29 arcblast effect 31 light and sound effects 31 electrical hazard analysis 32 shock hazard analysis 32 approach boundaries 32 flash hazard analysis 34 arcflash calculations 35. The information below relates to workplaces using 230 and 400 volt supplies. The health and safety toolbox do you want guidance on simple precautions to take when working with or near electricity and electrical equipment. I agree to read and follow all safety rules outlined in this booklet.
These short objective type questions with answers are very important for competitive exams as well as board exams. Oct 12, 2015 the most common causes of electrical hazards in office environments are faulty or defective equipment, unsafe installation, or misuse of equipment particularly extension cords, power strips, and surge protectors. Pdf electrical hazards and safety measurs written by tarek. Electrical hazards awareness page 7 of 49 efcog electrical safety improvement project electrical current basically, electrical hazards can be categorized into three types. Electricity hazards safety guide energy safe victoria. Always check the maximum recommended bulb wattage on any lighting fixture or lamp and never.
Electrical safety special training is required for work on electrical equipment only authorized employees may conduct electrical work. I agree to report all injuries to my foreman immediately, no matter how minor the. Many workers are unaware of the potential electrical hazards present in their work environment which makes them more vulnerable to the danger of electrocution and arc flash incidents. Covering outlets will also help save energy by stopping cold drafts. A person approved or assigned by the employer to perform a specific type of duty or duties or to be at. Electrical hazards safety toolbox talks meeting topics. Common hazards, your legal duties and precautions you can take when working with electricity. Consider all floors as conductive unless covered with insulating matting of suitable type for electrical work. These short solved questions or quizzes are provided by gkseries. Electricity has long been recognized as a serious workplace hazard, exposing employees to electric shock, electrocution, burns, fires, and explosions. Electrical safe work practices including electrical safety. Since 1998, according to the ministry of labour, 69 people were killed, 263 were critically injured and 844 workers received more than minor injuries as a result of exposure to electrical hazards. Ask each group to identify at least three things that could have been done to. Naturally, the resistance also depends on the path that electricity takes through the body if the electricity goes in the left hand and out the right foot, then the resistance will be much higher than if it goes in and out of adjacent fingers.
This equates to more than one work related death every work day in america. Dealing with electricity is not easy since it is a risky job. Meeting osha regulations, reducing insurance costs, and minimizing downtime and repair costs are additional benefits of electrical safety programs. But, inadequate training, lack of experience and failure to recognize potential hazards could result in electric shock or death. Use the links below to find information on hazards when working with electricity, how to assess these, precautions you can take and your legal obligations. Static electricity hazards under certain conditions, liquids, solid objects and people can become charged with static electricity. Oshas general industry electrical safety standards are published in. Places of work generally have power nominally supplied at 230 volt single phase and 400 volt 3 phase although some larger workplaces will receive electricity at a higher supply voltage.
Most of these incidents and fatalities were caused by direct worker contact with overhead power lines and contact with machines, tools, and handcarried metallic objects. Osha standards cover many electrical hazards in many different industries. How having an electrical hazards program can help your business. What are common electrical hazards and how do i fix them. Electrical safety at work should be a concern to all organisations. Give students handout c electrical safety scenario. The basic guidelines regarding the safe handling of electricity documented below will help you while working with electricity.
The first and most commonly recognized hazard is electrical shock. This procedure is effective for neutralizing exterior charge accumulation but does not affect the interior charge. According to the bureau of labor statistics, 289 employees were killed by contact with electric current in 2002. This brochure has been designed to satisfy the demand for assessing the risks of people, working with electricity andor exposed to electrical hazards. The most common causes of electrical hazards in office environments are faulty or defective equipment, unsafe installation, or misuse of equipment particularly extension cords, power strips, and surge protectors. Its vitally important to take safety precautions when working with electricity. The document focuses on some of the fundamentals of electricity, electrical wiring, electric tools. The cords should be replaced because homemade repairs often lead to fires. Thirty thousand 30,000 electrical shock incidents occur every year. All electrical systems have the potential to cause harm.
A tingling feeling when you touch an electrical appliance discolored or warm wall outlets a burning or rubbery smell coming from an appliance flickering or dimming lights sparks from an outlet q inspect your home for hidden electrical hazards. Electricity travels in closed circuits, normally through a conductor. It is intended for use by victorias emergency services. This con edison electricity expert will help you teach students basic safety rules that will keep them safe when using electricity inside or. Electrical hazards introduction electricity is essential to modern life, both at home and on the job. Electrical safe work practices including electrical safety principles. Electrical safety electrical work can be deadly if not done safely. A comprehensive database of more than 18 electrical safety quizzes online, test your knowledge with electrical safety quiz questions. Electrical safety michigan water environment association. You will learn skills to help you recognize, evaluate, and control electrical hazards.
The electricity can go right through the tree branch and right through you. Department of labor occupational safety and health. Do have an adult put safety caps on all unused electrical outlets. If an electric cord is broken or has wires showing, tell an adult. Common electrical related hazards electricity healthy. Electrical safety electrical hazards pose a serious threat to worker safety.
You will learn about the safety model, an important tool for recognizing, evaluating, and controlling hazards. Insulators substances, such as dry wood, rubber, glass and bakelite, that have high resistance to. The second type of hazard is electrical burns and the third is the effects of blasts which include pressure. Even household current 120 volts can stop your heart. Electrical safety electrical hazards pose a serious threat to. Others, such as office workers and sales people, work with it indirectly.
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