2007-04-29 06:29:58 · 5 answers · asked by Aria 2 in Science & Mathematics ➔ Engineering
This is to prevent him from 'completing the circuit'.
Basically you can touch one wire that is live, as soon as you touch ground or a second wire you complete the circuit, allowing energy to flow through your body. If you touch ground and a live wire with different fingers you'll get a shock through that hand, but if you touch a live wire and ground with different hands the electric jolt will pass through your arms and chest, which can kill you, because effectively you've fried your body (and the worst, your heart).
The insulated shoes prevent his feet from completing the circuit to ground.
2007-04-29 06:39:41 · answer #1 · answered by FourWheelDave 3 · 2⤊ 0⤋
Wearing insulated shoes will increase the overall resistance of the worker. This will minimize but not necessarily eliminate the likelyhood and severity of a shock. A shock may still be received by completing an electrical path from say a hand to foreare or finger to finger .
To further elaborate upon working with one hand...
The left hand is the one to place behing your back. This is because the heart is on the left side of the chest and in the event of a shock, electricity taking the shortest path to ground will be less likely to travel through the heart. (Passing from right hand through arm to legs the shortest path is along the right side of the chest)
The most dangerous shock to receive is a Hand to Hand shock which places the heart in the path of current flow.
2007-04-29 11:56:36 · answer #2 · answered by nullgateway 2 · 0⤊ 0⤋
The electrician wears a shoes in order to protect himself from the shock that he experiences due to potential difference,and then he keeps his hand behind since if he keeps his hand on the wire or some other conducting device that is in contact with the earth surface he will experience a shock
2007-04-29 06:43:30 · answer #3 · answered by SHIVA 1 · 0⤊ 0⤋
electricity needs a ''full circle'' path from source to ground to
function . if you only work with one hand and wear safety gear
you minimize your chance of injury.
2007-04-29 06:40:41 · answer #4 · answered by sirbobby98121 7 · 0⤊ 0⤋
So his apprentice can hand him the necessary tools...
2007-04-30 09:18:05 · answer #5 · answered by Anonymous · 0⤊ 0⤋