Recommended
More Related Content
Similar to Module 1 Introduction to electrical Safety.pdf
Similar to Module 1 Introduction to electrical Safety.pdf (20)
Recently uploaded
Recently uploaded (20)
Module 1 Introduction to electrical Safety.pdf
- 2. COURSE GOAL The aim of this program is to provide comprehensive on-site training to high-risk workers (i.e., skilled trades and maintenance workers) and management on the requirements of Sub Part S, and the prevention of serious injuries from electrical hazards at their worksites. 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. Electrical Safe Work Practices including electrical safety principles, guidelines for qualification of personnel, job planning requirements and Management and Personal Responsibility will be covered.
- 3. COURSE OBJECTIVE At the end of this training, trainee will be able to: • Raise the awareness to potential electrical hazards. • How to recognize electrical hazards. • Provide ways to eliminate, remove, and prevent electrical hazards in the workplace. • Emphasizing the extreme importance of observing all electrical safety requirements and practices. • What to do in the event of an electrical accident.
- 5. WHY SHOULD YOU BE CONCERNED ABOUT ELECTRICAL SAFETY? • 4.7% Of all occupational deaths. • One death per day • 4th leading cause of injury related occupational deaths • Second most common cause of electrocution is deenergized equipment
- 6. WHO IS QUALIFIED? One who has skills and knowledge related to the construction and operation of the electrical equipment and installations and has received safety training on the hazards involved.”
- 7. TYPES OF ELECTRICAL INJURIES • Electrocution – death due to electrical shock • Fact – An average of one worker is electrocuted on the job each day.
- 8. TYPES OF ELECTRICAL INJURIES • Electrical Shock – occurs when a person meets an electrical energy source. • Fact – More than 30,000 non-fatal shock accidents occur each year.
- 9. Types of Electrical Injuries Electrical Shock In contrast to electrocution, an electric shock injury involves electrical harm that does not result in death. Common injuries resulting from electrical shock include: • Amputation • Severe burns • Cardiac arrest and/or arrhythmia and/or heart muscle damage • Brain and other nerve damage • Memory loss • Permanent heart damage • Hearing loss • Seizures • Respiratory failure • Spine injury • Deformity at point of contact
- 10. Types of Electrical Injuries Steps to Minimize the Risk of an Electrical Shock • Start with the first round of the day; check all electrical motors, wiring, and switches, for abnormal sounds, variation in temperatures and loose connections • Ensure that all electrical connections are inside the panel box so that no one can touch them accidently • In accommodation area multiple socket plugs shouldn’t b used
- 11. Types of Electrical Injuries Steps to Minimize the Risk of an Electrical Shock • Turn off the breaker before starting any work on an electrical system • Use ply cards and notice board as much as possible to inform others about the ongoing work to avoid accidental “starts” • Double check electrical tools such as portable drills for any loose wires before attempting any job • Always wear protective clothing, rubber gloves, rubber kneepads and safety shoes to avoid risk of shock
- 12. Types of Electrical Injuries Steps to Minimize the Risk of an Electrical Shock • Use electrically insulated handle tools for working or checking electrical systems • Before working, remove jewelry, wrist bands and other conductive items • When working or removing multiple wires, tape off all but the one wire you are working on • Try as much as possible not to work on live system and even if you do so, be a professional and work carefully, taking all necessary safety precautions and with utmost concentration
- 13. Types of Electrical Injuries • During working in group or pair, organize a tool box meeting and discuss the procedure, risk and hazards of the job in hand • If you don’t know bout the system, ask for assistance. Don’t wo k without knowing the system • Always think first about your personal safety and safety of fellow seafarers while carrying out any electrical work on board ships Steps to Minimize the Risk of an Electrical Shock
- 14. FIRE / EXPLOSION Electrical Fire - caused by excessive resistance that generates heat from any of the following: • Too much current running through wiring where overcurrent protection fails or does not exist. • Faulty electrical outlets resulting in poor contact or arcing. • Poor wiring connections and old wiring that is damaged and cannot support the load.
- 15. WHAT YOU NEED TO KNOW Don't work with exposed conductors carrying 50 volts or more. Make sure electrical equipment is properly connected, grounded and in good working order. Extension cords may not be used as permanent wiring and should be removed after temporary use for an activity or event. Surge suppressors with built-in circuit breakers may be used long-term and are available with three-, six- and 15-foot- long cords. High amperage equipment such as space heaters, portable air conditioners and other equipment must be plugged directly into permanent wall receptacles. Do not access, use or alter any building’s electrical service, including circuit breaker panels, unless you are specifically qualified and authorized to do so. Wet environments can increase the risk of an electrical shock.
- 16. HOUSEKEEPING AND MAINTENANCE Maintain at least 30 inches of clearance in front of electrical panels to ensure a safe environment for facilities workers. Make sure that all junction boxes are covered.
- 17. WHAT CAN WE DO TO STAY SAFE? Avoid activities that require training • Working with exposed conductors carrying 50 volts or more. • Making repairs or alterations to any electrical equipment. • Opening the case, or removing barrier guards, of any equipment that utilizes electricity. • Using any tools or a meter to measure for the presence of electricity. • Resetting a tripped circuit breaker or replace a blown fuse. Ask a qualified person to perform these tasks.