Reply to thread

Message

<blockquote data-quote="dleccord" data-source="post: 6430489" data-attributes="member: 564031">Electricity is dangerous because of its disruptive effect on the life support organs of the human body. We characterize electricity by two quantities: voltage and current. Voltage is measured in units called volts and current is measured in units of amps. The primary factors determining the effect of electricity on the body are the amount and path of the current passing through the body.Currents of less than 0.02 amp may produce sensations ranging from tingling to sharp pain. A more serious effect occurs if the current causes muscles to contract. A person touching a live wire with their outstretched hand may literally not be able to let go of the wire due to the current&#039;s effect on the muscles. Experienced electricians who must sometimes deal with wires which may be live always use the backs of their hands to move the wires; if a current were present, the contacting muscles would cause the hand to pull away from the wire. Currents from 0.03 to 0.07 amp will begin to impair the ability of the person to breathe.The most dangerous range of currents is from 0.1 to about 0.2 amp. Currents in this range can cause death by initiating fibrillation (uncontrollable twitching) of the heart, which stops the regular flow of blood to the rest of the body. Currents much larger than 0.1 amp do NOT result in fibrillation and instead stop the heart completely. If the duration of the current is short, the heart will usually start to beat by itself after the current is removed.</blockquote>

[QUOTE="dleccord, post: 6430489, member: 564031"] Electricity is dangerous because of its disruptive effect on the life support organs of the human body. We characterize electricity by two quantities: voltage and current. Voltage is measured in units called volts and current is measured in units of amps. The primary factors determining the effect of electricity on the body are the amount and path of the current passing through the body. Currents of less than 0.02 amp may produce sensations ranging from tingling to sharp pain. A more serious effect occurs if the current causes muscles to contract. A person touching a live wire with their outstretched hand may literally not be able to let go of the wire due to the current's effect on the muscles. Experienced electricians who must sometimes deal with wires which may be live always use the backs of their hands to move the wires; if a current were present, the contacting muscles would cause the hand to pull away from the wire. Currents from 0.03 to 0.07 amp will begin to impair the ability of the person to breathe. The most dangerous range of currents is from 0.1 to about 0.2 amp. Currents in this range can cause death by initiating fibrillation (uncontrollable twitching) of the heart, which stops the regular flow of blood to the rest of the body. Currents much larger than 0.1 amp do NOT result in fibrillation and instead stop the heart completely. If the duration of the current is short, the heart will usually start to beat by itself after the current is removed. [/QUOTE]

Verification