Michael Dziak Walden University

Electrical Safety 2101

BASIC ELECTRICITY SAFETY AWARNESS

MODULE 4ELECTRICAL 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 1st 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.