Michael Dziak Walden University Electrical Safety 2101

BASIC ELECTRICITY SAFETY AWARNESS

MODULE 4 ELECTRICAL SHOCK OBJECTIVE:  Identify administrative controls that electrical personal use to work safely and prevent electric shock

SHOCK HAZARDS  Electrical Shock occurs when the human body completes an electrical circuit and becomes the conductor  Electrical safety depends on qualified personal NOT allowing their body to become the conductor  A good rule of thumb to heed is that electricity always will follow the least path of resistance

SHOCK HAZARDS  Electrical Shock occurs when the human body completes an electrical circuit and becomes the conductor  This person is in danger because the switch is open and they have inadvertently become a conductor

SHOCK HAZARDS  Electrical Shock occurs when the human body completes an electrical circuit and becomes the conductor  This person is very sad because the switch is closed and they have inadvertently become a conductor

EFFECTS OF SHOCK  Severity of shock is related to amount of current and the path through the body  A current path through the heart is extremely dangerous since the human heart is controlled by small electrical signals from the brain  A very small current can cause cardiac arrest and the person has a great chance of death unless CPR can be administered immediately

EFFECTS OF SHOCK  Electrical current not passing through the heart can cause pain, paralysis, or tissue burn  Side effects of non fatal electrical shock are confusion, amnesia, headaches, and cardio-pulmonary irregularities  Health issues from electrical shock can last several hours, several days, or can lead to chronic health issues in certain cases

SHOCK TREATMENT  De-energize the circuit  Remove the victim from the circuit or dangerous area  Call 911 and a 1 st Responder Team if one is available in your work site  Administer CPR if necessary

ARC FLASH HAZARDS  Arc Flash occurs when and energized source comes in close proximity with a grounded source creating an instantaneous blast or explosion  The potential effects are devastating to any human in close proximity to the arch flash causing severe burns and hearing damage  Arc Flash is preventable using explosion doors and proper protective equipment when qualified personal are required to work on energized equipment

QUIZ 4A 1. What is the correct sequence of events to follow if you observe someone receive a serious electrical shock? A.Call 911, de-energize the circuit, go home B.Call 911, give first aid as needed C.Call 911, de-energize the circuit, remove victim, take victim for medical treatment, report the incident 

QUIZ 4B 2.Electric Arc Flash occurs when: A.An electrical system is over-loaded B.An energized source comes in close proximity with a grounded source C.When an person’s hand comes in contact with insulated energized conductors 

QUIZ 4C 3.If you discover an unconscious person, clearly a victim of electric shock, and are unable to de-energize the electrical circuit, how do you remove the victim from the circuit? A.Do nothing. There's nothing you can do to help him. B.Grab the person, pull them off the energized line, render CPR. C.Wait for EMS to arrive because they are trained to deal with this kind of problem D.Use non-conductive dry wood or similar material to move him off the energized line, render CPR.