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Electrical Safety Joliet Distribution Center

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Annual Electrical Safety Training

Annual Electrical Safety Training

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Electrical Safety Joliet Distribution Center Electrical Safety Joliet Distribution Center Presentation Transcript

  • Electrical Safety
  • Electrical Safety Training Objectives
    • Understands electrical hazards (how to identify & avoid incidents)
    • Know your personal responsibilities
    • Understand how to react to electrical incident
  • Introduction Electricity is an important resource that demands respect. More than 800 people are electrocuted each year. Thousands more suffer disabling injuries from accidental contact with electricity. More than half of these accidents involve the same common low voltage you use in your home. Electricity is the number one cause of fires in the work place.
  • Electrical Hazards The most common types of electrical hazards that cause injuries fall into three categories.
    • Fires
    • Shocks
    • Burns
  • Electrical Hazard - Fire
    • As the conductor heats, any object with a flash point lower than the heat being generated will cause a fire.
    • Electricity is the #1 cause of fires in industry.
  • Electrical Hazard - Shock
    • One of the dangers with electricity is that a person can unknowingly complete a circuit and cause harm to themselves
    • The human body is made up of more than 75% water and easily conducts electricity.
  • Electrical Hazard - Shock
    • Even when electricity is flowing, it is ALWAYS looking for the path of LEAST resistance to ground (this is why there are ground plugs on extension cords and power tools)
    • Although current may not be flowing – this does NOT mean that the potential does not exist.
  • Ground Prongs
    • Never bend or break off the grounding prong
    • It endangers you and your coworkers
    • Ensure ground conductors are properly & securely fastened
  • Ground Fault Circuit Interrupters (GFCI)
    • Protect personnel from certain types of electrical shock
    • Protects personnel from current-to-ground shorts
    • Does NOT protect for shock caused by contact with both current carrying conductors
    • Required with potential exposure to current flow and ground
      • Water applications
      • Direct to ground applications
  • Electrical Hazard – Shock/Burns Several factors affect the seriousness of an electrical shock injury.
    • The voltage
    • The amperage
    • The path the current takes through the body
    • The length of contact with the electrical current
  • Electrical Hazard - Burns
    • Electrical burns are caused by having enough current pass through body tissue to literally cook the tissue
    • Electrical burns are also caused by arc blasts
    • The next slide is graphic. Turn your head if you do not wish to see it.
  • Electrical Hazard - Burns 440 VAC Exit Wound Changing a Ballast Arc Blast
  • Electrical Definitions
    • Electrical Equipment
      • any equipment that has the potential to be energized by electricity
    • De-energized Parts
      • circuits, equipment and parts that have been disconnected from all electrical energy sources and have been locked out and verified through proper testing techniques. Equipment that has not been locked out is considered to be energized.
    • Energized Parts
      • live parts that operate above 50 volts to ground
  • Electrical Definitions
    • Electrical Hazard
      • a dangerous electrical condition. Electrical conditions such as exposed energized parts and unguarded electrical equipment that may become energized unexpectedly are examples of electrical hazards.
    • Portable Electrical Equipment
      • tools or other equipment connected by flexible electric cords and extension cords. Equipment connected by permanently wired flexible cords and which remain connected once put in place are not considered portable.
    • Follow established electrical safety rules
    • Visually inspect cords attached to portable electric equipment, including extension cords, before use for external defects
    • Use appropriate PPE to protect against electrical hazards.
    • Report electrical deficiencies immediately
    Personal Responsibilities
    • Only qualified electricians/employees using proper personal protective equipment shall be permitted to work on live electrical equipment
    Electrical Safety Rules
  • Electrical Safety Rules
    • All powered hand tools and flexible cords must be examined for damage or defects by the intended user before operation.
      • If damage or a defect is found during the examination of the powered hand tool or flexible cord, it should be removed from service and immediately tagged “ Danger – Do Not Use ”.
      • The damaged or defective item shall not be returned to service until it is repaired.
  • Electrical Safety Rules
    • Employees are not authorized to be within 10 feet of overhead power lines. The power company is responsible for conducting any wok on outside overhead power lines located on the DC property.
    • All maintenance work performed to machinery requires for the machine to be de-energized and locked out/tagged out of service.
  • Electrical Safety Rules
    • Portable electrical equipment shall be handled in a manner that will not cause damage.
      • Electrical cords shall not be used to raise or lower equipment.
      • Flexible cords shall not be fastened with staples or hung in any manner that could damage
    • Portable electrical equipment and flexible cords approved for use in “wet locations” should be used in conductive locations.
      • A ground fault circuit-interrupter (GFCI) will be used in conjunction with portable electric equipment used in wet locations.
  • Electrical Safety Rules
    • Barricades, signs, other alerting techniques and/or attendants shall be used where it is necessary to limit access to work areas that may expose employees to un-insulated energized equipment
  • Many electrical shocks occur when safe work practices are not followed.
    • Failure to lockout electrical systems properly for system maintenance and repair
    • Failure to ground equipment
    • Use of defective equipment and lines
    • Use of wet electrical equipment
    Electrical Hazards
  • Personal Protective Equipment WARNING! Metal jewelry such as watches, rings, key chains, and earrings should never be worn when working near or around exposed energized parts. These metal objects could cause serious burns to the skin if accidental contact is made with an energized electrical source.
  • Personal Protective Equipment
    • Regular PPE For Area
    • Nonconductive Safety Glasses with Side Shields
    • Recommended – Low Voltage Electrical Gloves (Rubber Gloves with Leather Protectors)
      • Ensure gloves are stored properly
      • Gloves are to be replaced as needed
  • Reacting to Electrical Incident
    • Ensure no one comes into contact with victim or circuit
    • If victim is still within energized circuit:
      • De-energize circuit (this should be done right away even if victim is no longer a part of the circuit)
      • Remove victim with non-conductive device
    • Perform necessary first aid (to include CPR)
      • Electricity effects the nervous and muscular systems
      • Electrical burns affect the muscle tissue from inside out
  • Conclusion
    • Electricity is an important resource that demands respect.
    • A person can unknowingly complete a circuit and cause harm to themselves.
    • Electrical systems must always be locked out prior to maintenance and repair.
    • Visually inspect cords attached to portable electric equipment before use for external damage.