Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Dangers of Electricity risk for people (burns, electrocution) risk for their surroundings (fire and explosion) Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment The risk to people The main risk is coming into contact with live materials. The effects, dependent upon the current strength and the voltage difference, vary from panic and burning, to death. The effect of panic should not be underestimated as it could lead to a fall or other injury. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment The risk to people The main risk is coming into contact with live materials. The effects, dependent upon the current strength and the voltage difference, vary from panic and burning, to death. The effect of panic should not be underestimated as it could lead to a fall or other injury. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment The risk to people The main risk is coming into contact with live materials. The effects, dependent upon the current strength and the voltage difference, vary from panic and burning, to death. The effect of panic should not be underestimated as it could lead to a fall or other injury. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Willem Maes High Voltage Safety Figure : The effect of panic
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment The risk to surroundings The risk to surroundings due to an overload or short circuit, causing: an abnormal overheating of an apparatus or a circuit a fire or even an explosion all of this can result in a substantial loss off equipment end or functionality. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment The risk to surroundings The risk to surroundings due to an overload or short circuit, causing: an abnormal overheating of an apparatus or a circuit a fire or even an explosion all of this can result in a substantial loss off equipment end or functionality. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment The risk to surroundings The risk to surroundings due to an overload or short circuit, causing: an abnormal overheating of an apparatus or a circuit a fire or even an explosion all of this can result in a substantial loss off equipment end or functionality. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Outline The Risk of Electricity 1 Effects from electricity Electricity can kill The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Muscle Tetanisation Figure : Involuntary contraction of muscles Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Muscle Tetanisation Muscle Tetanisation is the involuntary contraction of the muscles with as a result: Muscle tetanisation may not allow a detachment of the victim from the live part. Breathing difficulty breathing stops: because of the contraction of the muscles involved in breathing. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Muscle Tetanisation Muscle Tetanisation is the involuntary contraction of the muscles with as a result: Muscle tetanisation may not allow a detachment of the victim from the live part. Breathing difficulty breathing stops: because of the contraction of the muscles involved in breathing. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Effect on the heart Figure : normal heart rhythm Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Effect on the Heart A small current passing through the chest can result in ventricular fibrillation. If not treated immediately by defibrillation, it can be lethal as the heart muscle cells start moving independently. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Effect on the Heart A small current passing through the chest can result in ventricular fibrillation. If not treated immediately by defibrillation, it can be lethal as the heart muscle cells start moving independently. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Effect on the Heart A shock more than 200 mA is so strong that it can literally stop the heart muscles from moving. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Neurological Effects Figure : neuropathy Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Neurological Effects An electric shock can interfere with the nervous control: This can be dangerous on the heart and lungs. Repeated electric shock that does not lead to death, has been shown to be a cause for neuropathy. When the current moves near the head then loss of consciousness occur fast. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Neurological Effects An electric shock can interfere with the nervous control: This can be dangerous on the heart and lungs. Repeated electric shock that does not lead to death, has been shown to be a cause for neuropathy. When the current moves near the head then loss of consciousness occur fast. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Neurological Effects An electric shock can interfere with the nervous control: This can be dangerous on the heart and lungs. Repeated electric shock that does not lead to death, has been shown to be a cause for neuropathy. When the current moves near the head then loss of consciousness occur fast. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Burns Burns are produced by the heat developed by the current flowing through the human body. Burns can be catagorized as: Superficial burns on the surface of the skin. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Burns 2nd and 3th degree burns on the skin. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Burns Internal burns can lead to organ burns. Figure : The burns from an electric shock can result in organ failure and can lead to death. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment A person can be blinded even permantly by the UV light emitted by an arc or arc flash. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Noise The violent noise of an arc flash can cause a rupture of the tympanic membranes and temporary sensorineural hearing loss. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Outline The Risk of Electricity 1 Effects from electricity Electricity can kill The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electric Shock If one touches a source of electricity, a current will pass through the body, taking the easiest route to the ground. This is called an electric shock. A human body consist for 2/3 out of fluid therefore people are good electric conductors. The electric current can cause the body to go into shock. This can lead to a falling blood pressure, tackicardia, and loss of consiousness. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electric Shock If one touches a source of electricity, a current will pass through the body, taking the easiest route to the ground. This is called an electric shock. A human body consist for 2/3 out of fluid therefore people are good electric conductors. The electric current can cause the body to go into shock. This can lead to a falling blood pressure, tackicardia, and loss of consiousness. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electric Shock If one touches a source of electricity, a current will pass through the body, taking the easiest route to the ground. This is called an electric shock. A human body consist for 2/3 out of fluid therefore people are good electric conductors. The electric current can cause the body to go into shock. This can lead to a falling blood pressure, tackicardia, and loss of consiousness. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body Electric injury is a relative infrequent but potentialy devasting form of multi system injury with high morbidity and mortality. The severity of the injury depends on the intensity of the electric current, the pathway it follows trough the body, and the duration of the contact with the power source. Immediate death may occur either from current induced ventricular fibrillation or from respiratory arrest secondary to paralysis of the central respiratory control system or to paralysis of the respiratory muscles. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body Electric injury is a relative infrequent but potentialy devasting form of multi system injury with high morbidity and mortality. The severity of the injury depends on the intensity of the electric current, the pathway it follows trough the body, and the duration of the contact with the power source. Immediate death may occur either from current induced ventricular fibrillation or from respiratory arrest secondary to paralysis of the central respiratory control system or to paralysis of the respiratory muscles. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body Electric injury is a relative infrequent but potentialy devasting form of multi system injury with high morbidity and mortality. The severity of the injury depends on the intensity of the electric current, the pathway it follows trough the body, and the duration of the contact with the power source. Immediate death may occur either from current induced ventricular fibrillation or from respiratory arrest secondary to paralysis of the central respiratory control system or to paralysis of the respiratory muscles. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body According to Ω ’s law, the electric current is proportional to the voltage and inversely proportional to the resistance of the conductor. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Figure : The path the current follows determines the effect off the electric current Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Willem Maes High Voltage Safety Figure : an easy visualization
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Thus exposure of different parts of the body to the same voltage will generate a different current (and therefore a different degree of damage) because resistance varies significantly between various tissues. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body The least resistance is found in nerves, blood, mucous membranes, and muscles. The highest resistance is found in bones, fat and tendons. Skin has intermediate resistance. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body The least resistance is found in nerves, blood, mucous membranes, and muscles. The highest resistance is found in bones, fat and tendons. Skin has intermediate resistance. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body The skin is the primary resistor against the electrical current, with a resistance ranging in adults between 40 to 100K Ω , depending on its thickness (the thicker the skin the higher the resistance. The intensity of the electrical shock varies between victims of different sex and age. Even more important than the thickness of the skin is the moisture of the skin. Presence of sweat may decrease the resistance of the skin to less than 1 K Ω . Wet skin offers almost no resistance at all, thus generating the maximal intensity of current. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body The skin is the primary resistor against the electrical current, with a resistance ranging in adults between 40 to 100K Ω , depending on its thickness (the thicker the skin the higher the resistance. The intensity of the electrical shock varies between victims of different sex and age. Even more important than the thickness of the skin is the moisture of the skin. Presence of sweat may decrease the resistance of the skin to less than 1 K Ω . Wet skin offers almost no resistance at all, thus generating the maximal intensity of current. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body The skin is the primary resistor against the electrical current, with a resistance ranging in adults between 40 to 100K Ω , depending on its thickness (the thicker the skin the higher the resistance. The intensity of the electrical shock varies between victims of different sex and age. Even more important than the thickness of the skin is the moisture of the skin. Presence of sweat may decrease the resistance of the skin to less than 1 K Ω . Wet skin offers almost no resistance at all, thus generating the maximal intensity of current. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body The skin is the primary resistor against the electrical current, with a resistance ranging in adults between 40 to 100K Ω , depending on its thickness (the thicker the skin the higher the resistance. The intensity of the electrical shock varies between victims of different sex and age. Even more important than the thickness of the skin is the moisture of the skin. Presence of sweat may decrease the resistance of the skin to less than 1 K Ω . Wet skin offers almost no resistance at all, thus generating the maximal intensity of current. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body Altough bones, tendons, and fat offer the most resistance to electric current, they are not likely to be the contact points. Nerves and blood vessels, on the other hand, are the best conductors. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body Altough bones, tendons, and fat offer the most resistance to electric current, they are not likely to be the contact points. Nerves and blood vessels, on the other hand, are the best conductors. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body The duration of the contact with electrical current is an important determinant of injury. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body The pathway of the current through the body. Determines the number of organs that are effected A vertical pathway is the most dangerous because it involves all the vital organs (central nervous system, heart, respiratory muscles, and in pregnant woman, the uterus and fetus). A horizontal pathway from hand to hand will spare the brain but can still be fatal due to involvement of the heart, respiratory muscles, or spinal cord. A pathway trough the lower part of the body may cause severe local damage but will probably be less lethal. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body The pathway of the current through the body. Determines the number of organs that are effected A vertical pathway is the most dangerous because it involves all the vital organs (central nervous system, heart, respiratory muscles, and in pregnant woman, the uterus and fetus). A horizontal pathway from hand to hand will spare the brain but can still be fatal due to involvement of the heart, respiratory muscles, or spinal cord. A pathway trough the lower part of the body may cause severe local damage but will probably be less lethal. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body The pathway of the current through the body. Determines the number of organs that are effected A vertical pathway is the most dangerous because it involves all the vital organs (central nervous system, heart, respiratory muscles, and in pregnant woman, the uterus and fetus). A horizontal pathway from hand to hand will spare the brain but can still be fatal due to involvement of the heart, respiratory muscles, or spinal cord. A pathway trough the lower part of the body may cause severe local damage but will probably be less lethal. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body The pathway of the current through the body. Determines the number of organs that are effected A vertical pathway is the most dangerous because it involves all the vital organs (central nervous system, heart, respiratory muscles, and in pregnant woman, the uterus and fetus). A horizontal pathway from hand to hand will spare the brain but can still be fatal due to involvement of the heart, respiratory muscles, or spinal cord. A pathway trough the lower part of the body may cause severe local damage but will probably be less lethal. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body Frequency. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body Voltage. Whereas electric shock from a low voltage voltage line is delivered on contact of the victim with the source, in high voltage injury, the current is carried from the source to the person trough an arc before any physical contact is made. The arc may form into or over the body of a person. Arcs can generate extremely high temperatures (up to 5000 deg C) that are usually responsible for the severe thermal injuries from high voltage. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body Voltage. Whereas electric shock from a low voltage voltage line is delivered on contact of the victim with the source, in high voltage injury, the current is carried from the source to the person trough an arc before any physical contact is made. The arc may form into or over the body of a person. Arcs can generate extremely high temperatures (up to 5000 deg C) that are usually responsible for the severe thermal injuries from high voltage. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body Three primary factors affect the severity of the shock a person receives when he or she is a part of an electrical circuit: Amount of current flowing through the body (measured in amperes). Pathway of the current through the body. Length of time the body is in the circuit. Frequency. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body Three primary factors affect the severity of the shock a person receives when he or she is a part of an electrical circuit: Amount of current flowing through the body (measured in amperes). Pathway of the current through the body. Length of time the body is in the circuit. Frequency. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body Three primary factors affect the severity of the shock a person receives when he or she is a part of an electrical circuit: Amount of current flowing through the body (measured in amperes). Pathway of the current through the body. Length of time the body is in the circuit. Frequency. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body Three primary factors affect the severity of the shock a person receives when he or she is a part of an electrical circuit: Amount of current flowing through the body (measured in amperes). Pathway of the current through the body. Length of time the body is in the circuit. Frequency. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body Other factors that may affect the severity of the shock are: The presence of moisture in the environment. The phase of the heart cycle when the shock occurs. The general health of the person prior to the shock. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body Other factors that may affect the severity of the shock are: The presence of moisture in the environment. The phase of the heart cycle when the shock occurs. The general health of the person prior to the shock. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Electricity’s effect on the human body Other factors that may affect the severity of the shock are: The presence of moisture in the environment. The phase of the heart cycle when the shock occurs. The general health of the person prior to the shock. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Effects of Electrical Current on the Human Body Effects can range from a barely perceptible tingle to severe burns and immediate cardiac arrest. Although the exact injuries that result from any given amperage are not known, the following slides demonstrates a general relationship for a 60-cycle, hand-to-foot shock of one second’s duration: Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment hand-to-foot shock of one second Current 1mA Perception level. Slight tingling sensation. Still dangerous under certain conditions. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment hand-to-foot shock of one second Current 1mA Perception level. Slight tingling sensation. Still dangerous under certain conditions. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment hand-to-foot shock of one second Current 1mA Perception level. Slight tingling sensation. Still dangerous under certain conditions. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment hand-to-foot shock of one second Current 5 mA Slight shock felt, not painful but disturbing. Average individual can let go. Strong involuntary reactions to shocks in this range may lead to injuries. If the extensor muscles are excited by the shock, the person may be thrown away from the circuit. Often, this can result in a fall from elevation that kills a victim even when electrocution does not. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment hand-to-foot shock of one second Current 5 mA Slight shock felt, not painful but disturbing. Average individual can let go. Strong involuntary reactions to shocks in this range may lead to injuries. If the extensor muscles are excited by the shock, the person may be thrown away from the circuit. Often, this can result in a fall from elevation that kills a victim even when electrocution does not. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment hand-to-foot shock of one second Current 5 mA Slight shock felt, not painful but disturbing. Average individual can let go. Strong involuntary reactions to shocks in this range may lead to injuries. If the extensor muscles are excited by the shock, the person may be thrown away from the circuit. Often, this can result in a fall from elevation that kills a victim even when electrocution does not. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment hand-to-foot shock of one second Current 5 mA Slight shock felt, not painful but disturbing. Average individual can let go. Strong involuntary reactions to shocks in this range may lead to injuries. If the extensor muscles are excited by the shock, the person may be thrown away from the circuit. Often, this can result in a fall from elevation that kills a victim even when electrocution does not. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment hand-to-foot shock of one second Current 5 mA Slight shock felt, not painful but disturbing. Average individual can let go. Strong involuntary reactions to shocks in this range may lead to injuries. If the extensor muscles are excited by the shock, the person may be thrown away from the circuit. Often, this can result in a fall from elevation that kills a victim even when electrocution does not. Willem Maes High Voltage Safety
Effects from electricity Electricity can kill The Risk of Electricity The risk of electricity for people The physical effect of an electric current on the human body Dangers when working on HV equipment hand-to-foot shock of one second Current 6 mA - 16mA Painful shock, begin to lose muscular control. Commonly referred to as the freezing current or "let-go" range. Willem Maes High Voltage Safety
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