When arc welding equipment is properly grounded, a voltage may exist between the. This laboratory safety guidance booklet deals specifically with laboratories within the jurisdiction of federal osha. Hazardous area classification and laboratory operations. No matter how much training one has received or how much employers try to safeguard their workers, electrical safety is ultimately the responsibil ity of the electrical worker. Electrical safety in the workplace is the most important job of an electrical worker.
This guidance is issued by the health and safety executive. The following key shows the answers for the electrical safety safety meeting quiz. All electrical equipment and services must be grounded. In the laboratory, workers may be exposed to electrical hazards including electric shock, arc blasts, electro cutions, fires and explosions. Ground fault detected gfci can shut off electricity flow in as little as 140 of a. This excerpt section 11 from penns electrical safety program defines practices and procedures to be implemented for electrical equipment that is not listed or labeled by a nationallyrecognized testing laboratory nrtl. We would like to acknowledge all faculty members and laboratory specialists who contributed to the preparation of this handbook.
Chapter 15, to license people doing electrical work and to adopt and enforce nationally recognized safety codes. A guide to united states electrical and electronic. Lab safety msu college of engineering michigan state university. The primary objective of the electrical safety program is to prevent electrical related injuries. In addition, sparks from electrical equipment can serve as an ignition source for flammable or explosive vapors or combustible materials. Many operations in the lab can result in lab workers assuming sustained or repetitive awkward postures. We rely on electricity, but sometimes underestimate its capability of causing injury. If you feel uncomfortable fighting a fire, pull the alarm and exit the building. But if you do follow the guidance you will normally be doing enough to comply with the law. In addition, an electrical hazard could damage expensive equipment or wipe out years of research. This guide is not meant to be either a substitute for or a legal interpretation of the occupational safety and health regulations. You will learn about the safety model, an important tool for recognizing, evaluating, and controlling hazards. With a portfolio of over 65,000 products from suppliers, fisher safety has access to the most respected brands of safety and ppe products, allowing us to serve as your single source for thousands of safety products.
For advanced ecommerce capabilities fisher safety leads the industry in providing advanced ecommerce solutions for. Faculty, staff and students generally use equipment and devices designed by qualified electrical engineers and electricians and constructed in accordance with underwriters laboratory and canadian safety association codes to protect the operator of the device from contact with energized electrical conductors. The underwriters laboratory ul label, for example, certifies that equipment meets these standards, which prevents certain types of hazardous exposure. Recently, a laboratory employee sustained an electrical shock injury from a handheld uv lamp whose wire had frayed. Potential exposures to electrical hazards can result from faulty electrical equipmentinstrumentation or wiring, damaged.
The major hazards associated with electricity in the laboratory environment are electrical shock or electrical fire. Field and program guides the following field guides are provided to assist lbnl personnel in the application of pub3000, chapter 8 and the electrical safety manual while performing their duties. We also would like to thank jonathan smith for his corrections and suggestions for improving the text. In addition to information on osha standards and guidance that deal with laboratory hazards, appendices are provided with information on other governmental and nongovernmental agencies that deal with various aspects of laboratory safety. Study the basic functions of digital multimeter dmm 3. Controlling electrical hazards osha laboratory safety. The objectives of this handbook are to enhance electrical safety awareness and mitigate electrical hazards to employees, the public, and the environment. A guide to united states electrical and electronic equipment compliance requirements scope this guide addresses electrical and electronic consumer products including those that will come into contact with food. Electronics lab, advanced electrical engineering lab course ii. I agree to read and follow all safety rules outlined in this booklet. A separate lead is required to ground the workpiece or power source.
The chapters also include recommendations for organizing an electrical safety program and descriptions of electrical safety related procedures to be used in the program. Electrical safety electrical work can be deadly if not done safely. Electrical safety in the laboratory environmental health. However, electrical inputs and outputs, or customized equipment still pose a hazard. Research facilities inherently have significant physical hazards present. Consider all floors as conductive unless covered with insulating matting of suitable type for electrical work. The figure below summarizes the factors that affect resistance. Safety is the most important practice in an electrical engineering laboratory. Following the guidance is not compulsory, and you are free to take other action. Safety instructions electronics lab advanced electrical. Safety acknowledgment form for working with microorganisms. Electrical safety in the laboratory part of the laboratory safety series quality safety and health products, for today.
Electrical safety procedure 1 mb, pdf training requirements. Green berets ultralight bug out bag with gear recommendations duration. The following safe work practices can prevent electrical shock. Electrical safety precautions and basic equipment protocol jove. Check insulation on all equipment wiring before plugging in look for cracks, etc. The typical laboratory contains a wide variety of electricallypowered equipment including stirrers, shakers, pumps, hot plates, heaters, power supplies, ovens. However, we need to be cautious and keep safety in mind. Laboratory safety standards are in use in clinical and chemical labs, testing labs, and research and development labs in both industrial and educational facilities.
The electrical test lab evaluates electrical equipment for safety, fire and shock hazards and personnel injuries in accordance with the current applicable codes and standards. Every student who participates in the lab course has to sign the safety agreement at the end of this document. Electrical safety risk management and safety university. 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. This guide is only concerned with electrical safety testing methods. The second type of hazard is electrical burns and the third is the effects of blasts which include pressure. Download the policy electrical safety research labs and support shops. Therefore, knowledge regarding electrical safety and what to do in case of emergency is. Electrical safety in the laboratory these and all electrical devices used in the lab setting present a potential danger of injury due to electric shock, fires due to poorly installed or maintained systems and fires due to sparks serving as an ignition source for flammable or combustible materials. 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.
Electrical safety precautions and basic equipment protocol. Even household current 120 volts can stop your heart. Esfi recognizes that each work environment presents different electrical hazards. Study the safety procedures of the electrical lab 2. The sign must clearly communicate that the chemical in question is known to the state to cause cancer, or birth defects or other reproductive harm. Caltech posts prop 65 warning signs throughout the workplace. Electrical hazards osha gfci information osha gfci information uw facilities services, pdf fast facts. Laboratory experiments typically use equipment that complies with international safety standards. The label indicates the type of extinguisher that is present. Electrical equipment modified by or built by lab workers download the policy electrical safety research labs and support shops. That said, national regulations and consensus standards have distilled a significant body of knowledge into minimum safety requirements that the lab is contractually obligated to implement. Safety rules help you control your and others risk of injury or death from workplace hazards. The first and most commonly recognized hazard is electrical shock.
In the laboratory, workers may be exposed to electrical hazards including electric shock, arc blasts, electrocutions, fires and explosions. Run through this checklist regularly, since electrical malfunction can happen at any time and for many reasons. In addition, it includes electrical and electronic products used in the workplace as well as electrical and electronic medical devices. The electrical safety program esp was created to comply with electrical systems regulatory requirements to ensure that energized electrical work at purdue university facilities is performed safely by qualified electrical workers who are provided with appropriate safe work procedures, protective equipment, and other controls. Electrical safety measures and standards for laboratory facilities. If not, have a qualified electrician install them for you. A safe work environment is not always enough to control all potential electrical hazards. Safety tips have all electrical work done by a qualified electrician. Laboratory electrical safety environment, health and safety. Detects a difference in current between the black and white circuit wires could happen when electrical equipment is not working properly causing a current leakage known as ground fault.
During an evacuation emergency, exit the room as directed. Electrical hazards for laboratory employees and students usually include shock, burn, or fire hazards. Over the last 20 years or so there has been a dramatic increase in the use of electronic equipment in all walks of life, and medical electronics in particular has. Electrical safety at home checklist you already practice fire safety, but fire prevention is the best way to protect your family and that starts with ensuring that your electrical systems and appliances are functioning properly and safely. Potential exposures to electrical hazards can result from faulty electrical equipmentinstrumentation or wiring, damaged receptacles and connectors, or unsafe work practices. Electrical equipment modified by or built by lab workers.
The purpose of this section is to advise laboratory occupants to develop and utilize appropriate work procedures for electrical safety and to remediate electrical. Laboratory safety guidance occupational safety and. The greek letter omega s is used as the symbol for electrical resistance. Osha office of training and education electricalelbasic1195 5 the symbol for resistance is the letter r. Electrical safety in the laboratory environmental health and safety. Territories puerto rico and the virgin islands that have their own oshaapproved occupational safety and health standards, which may be. Lab health and safety electrical safety in the lab.
Student manual centers for disease control and prevention. Among the many hazards present in the laboratory, electrical hazards are one of the most common. Esfis workplace safety materials provide valuable information to help employees make safe choices everyday and tips for creating a safer work environment, whether work takes place in an office, on a job site, or in a manufacturing setting. You will learn skills to help you recognize, evaluate, and control electrical hazards. The purpose of this section is to advise laboratory occupants to develop and utilize appropriate work procedures for electrical safety and to remediate electrical hazards when possible. The major hazards associated with electricity are electrical shock and fire. Do not handle electrical equipment when hands, feet or body are wet or perspiring, or when standing on a wet floor. Electrical shock occurs when the body becomes part of the electric. The safety rules have to be followed at all times when you are present in the teaching laboratories.
Esfi workplace safety electrical safety foundation. It focuses only on the tests and equipment needed to minimize electrical shock and does. Do all lab staff know how and when to report accidents, incidents, or nearmisses in oars. Experimental setups often involve the use of several electrically powered instruments simultaneously. While electricity is in constant use by the researcher, both within and outside the laboratory, significant physical harm or death may result from its misuse. An understanding of these principles is essential for comprehension of oshas electrical safety standards. Laboratory electrical safety every laboratory on uncs campus has electrically powered equipment that is used routinely in daytoday operations. These and all electrical devices used in the lab setting present a potential danger of injury due to electric shock, fires due to poorly installed or maintained systems and fires due to sparks serving as. Contact your supervisor for additional safety training if your job involves repairing, installing or working on energized parts. Electrical fires should only be fought if the situation is well in hand. Training is required for all personnel that may be exposed to electric current, arcing, grounding, and lack of guarding in equipment andor systems exceeding 50 volts.
Which of the following problems can faulty electrical equipment cause. In many countries, laboratory work is subject by health and safety legislation. The online course, rms electrical safety training is available in complynd. Although additional safety requirements are also included in most safety standards, these four hazards are the foundation upon which all safety standards are based. The typical laboratory contains a wide variety of electricallypowered equipment including stirrers, shakers, pumps, hot plates, heaters, power supplies, ovens, and electrophoresis equipment. Included here are electrical safety hazards, ergonomic hazards associated with manual material handling and equipment use, handling sharps, and basic housekeeping issues. The dangers of electricity, electrical shock, and the resulting injuries will be discussed. Histology laboratory electrical safety training record i have recieved electrical safety training as described in the histology safety manual. The hazards associated with the use of electricity include electrical shock and electrical fires caused by shorts and overloaded circuits or wiring. All laboratory operations contain some elements of. Oct 03, 2019 you already practice fire safety, but fire prevention is the best way to protect your family and that starts with ensuring that your electrical systems and appliances are functioning properly and safely. In order to reduce the risk of equipment and laboratory damage and personal harm, observe the following guidelines. This student manual is part of a safety and health curriculum for secondary and postsecondary electrical trades courses.
Page 7 of 49 efcog electrical safety improvement project electrical current basically, electrical hazards can be categorized into three types. Uw personnel need to be aware of the hazards electricity poses, such as shock, fire and explosion, and either eliminate or control those hazards. They are provided in both pdf handout format, as well as powerpoint format. Principles of measuring voltage, current and resistance 5.
793 984 1259 787 1163 1598 1328 1030 1598 1318 452 875 926 946 1049 491 1345 86 875 1206 499 300 518 912 922 913 1125 585 1430 542 937 1053 668 1341 403 291 647 756 1434