Inside the GFCI is an electrical device that constantly compares the current on the two wires of an electrical circuit. If, at any time, the electrical device detects an imbalance, the GFCI shuts off the circuit.
Most electrical shocks occur when a person touches the LIVE wire of a circuit while grounded in some other way (such as standing barefooted on concrete). The GFCI detects that imbalance and shuts off the circuit so quickly that we often don't even feel the shock.
As a word of caution, don't depend on the GFCI as a substitute for common sense. If you aren't touching some kind of grounded surface, the GFCI will not function. In that situation you are nothing more than another resistance load. Also, if you feel that the GFCI will protect you and ignore normal caution around electricity, you may encounter a circuit that is either NOT protected with a GFCI, or you may encounter a GFCI that has failed. Either way, always use caution when doing anything with electricity.
A GFCI (Ground Fault Current Interrupter) prevents serious injury from electric current by detecting the imbalance caused by a short circuit from hot to ground, and interrupting the current flow, often within milliseconds, before serious injury results.
This works because there is normally zero current on ground, with all of the return current flowing on neutral. In a typically postulated fault, such as the hot wiring from a hair dryer making contact with your hand, and the other hand touching ground, such as the bathroom faucet, not all of the current returns on neutral.
Kirchoff's current law states that the sum of the currents entering a node is exactly equal to the sum of the currents leaving a node. If some current flows on ground, then the current on neutral must therefore be less than the current flowing on hot. The GFCI detects this imbalance and opens, saving lives.
If you experienced an electric shock and your hand and arm are numb and tingly, it is important to seek medical attention as soon as possible. This could be a sign of nerve damage or other serious injury. It is also important to ensure the source of the shock is addressed to prevent further accidents.
occipital lobe
We have no means to prevent a volcano from erupting, but if we can tell that it is going to erupt, we can evacuate that area to avoid injury.
It depends how serious the injury or damage is.
It depends on the state, but generally it is a serious assault that results in a substantial risk of death or serious bodily injury. Example being a stab wound, broken bone, ect.
To prevent serious injury.
describe how a reflex can prevent injury
A person with a serious leg injury should not be allowed to walk. It is also true that a person with a serious head or back injury should not be allowed to walk.
they help secure a person from serious injury in a car accident and prevent people from lurching forward when a car screeches to a halt.
No, if there was no serious injury or death.... Property Damage only. Yes, if there was serious death or injury.
A guard is a device designed to prevent injury from rotating machinery.
It can potentially lower your company's workers compensation costs It can promote a healthier work environment It can help prevent personal injury and possibly eliminate serious injury due to negligence (from not paying attention)
You may need support to the knee in order to prevent from over straining the joint. Tearing your ACL is a serious injury, and you should consult a physician before taking up running or strenuous exercise beforehand, or you may result in injuring the knee again.
It can prevent an accident or injury
It depends on what kind of injury. Bell Boots would prevent injury to the hooves. So would shoes. And leg wraps would prevent injury to the tendons in the lower leg. But like I said, it depends on what kind of injury you are triyng to prevent.
Mom patches his head to prevent any more blood from flowing out. The injury was serious, however, his mother did the right thing by applying pressure on the wound.
Is a bad thing and requires IMMEDIATE REPLACEMENT OR REBUILDING OF THE MASTER CYLINDER TO PREVENT SERIOUS INJURY AND OR DEATH