you need to evaluate the situation you are in and assess your risks. if you use the safety model to recognize, evaluate, and control hazards, you will be much safer at work. the first step of the electrical safety model is recognizing the electrical hazards around you. of course, it is possible to be talked out of our concerns by someone who is reckless or dangerous. decisions to lock out and tag out circuits and equipment need to be made during this part of the safety model. risk is determined by analyzing the probability of an injury occurring and the severity of the injury if it occurs. when evaluating risk, it is best to identify all possible hazards first, then evaluate the risk of injury from each hazard. many people are working at different tasks and job sites are frequently exposed to bad weather. the risks in your work environment need to be evaluated all the time.
you control electrical hazards in two main ways: osha regulations, the nec, and the national electrical safety code (nesc) provide a wide range of safety information. he did not turn off the power supply to the lights. but, because of a mistake in installation, it turned out that the white wire was the “hot” wire, not the black one. he began to strip the white wire using a wire stripper in his right hand. cpr was performed, but the maintenance man could not be saved. you will receive a message if you forgot to answer one of the questions. when your team works in electrical environments, they need to have full knowledge of safety rules. this is vital, not only for workers but also for the safety of employees supervised. this worksafebc video deals with the dangers of working near overhead and underground powerlines.
we rely on electricity, but sometimes underestimate its capability of causing injury. electrical shock happens when current passes through the body. when a person receives a shock, electricity flows between parts of the body or through the body to a ground. electrocution refers to the injury or lethal dose of electrical energy. the severity of injury depends on the amount of current flowing through the body, the current’s path through the body, the length of time the body remains in the circuit and the current’s frequency. an explosion can occur when electricity ignites a flammable gas or combustible dust mixture in the air.
for more information on electrical cords, including extension cords and power taps, see the extension cords, surge suppressors and power strips focus sheet. electrical grounding provides an alternate path for electricity to follow, rather than going through a person. when using electricity in a wet or damp location, including outdoor locations, a ground fault circuit interrupter (gfci) must be used. when servicing and maintenance tasks involve electricity and electrical equipment, you must prevent the unexpected startup of equipment. all injuries and near-misses, including those potentially caused by electricity or electrical equipment, must be reported using the online accident reporting system (oars). an arc flash (also called a flashover), which is distinctly different from the arc blast, is part of an arc fault, a type of electrical explosion or discharge that results from a low-impedance connection through air to ground or another voltage phase in an electrical system. (wiki) in electrical engineering, ground or earth is the reference point in an electrical circuit from which voltages are measured, a common return path for electric current, or a direct physical connection to the earth.
the purpose of this course is to cover basic electrical safety information for individuals who have a limited electrical that’s where our electrical safety compliance training course can help. our safety professionals translate osha three step process. to make sure all employees are safe before, during and after electrical work is performed,, electrical safety training pdf, electrical safety training pdf, electrical safety training ppt, free online electrical safety training, electrical safety training topics.
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