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When an electrical earthing wire is showing live what is the problem?
Wiki User
∙ 12y ago
earth wire not cnnected from main earth
Wiki User
∙ 12y ago
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Are there electrical colour codes for wiring in India?
Red, Yellow and Blue for Live. Black for neutral and Green for Earthing
Why is the earthing switch in open position?
While earthing switch is open means the circuit is live
What does the inside of a plug look like?
There are three wires-the live wire, which is red or brown, the neutral wire, which is blue, and the earthing wire, which is yellow or green. The live wire has high voltage, and supplies electricity. The earthing wire brings the electricity safely to the ground in case of an electrical fault. There is also a fuse, which in case of a huge surge of power would melt, breaking the circuit and preventing an accident.
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What is Body earthing?
That is when your body becomes the electrical path to ground. The result may be a severe shock if you come in contact with a live voltage source. In a lightening storm if you got hit, your body would provide the path to ground such that current flows through your body.
When a live battery feed wire touches the metal frame shorting all electrical power out throughout the entire vehicle what is the problem that needs correcting?
insulate the 'live battery feed wire'. i.e.; electrical tape. Or, replace wire.
How could an improper electrical earthing connection affect an appliance?
In a properly operating appliance, there is no connection between any of its internal wiring and its chassis and/or its metal case, if there is one. As such, the earthing connection being improper will not affect the operation of the appliance.However, and this is critical, an improper earthing connection can present an electrocution hazard to the user...If the earth connection were electrically live or "hot", for instance, then the chassis of the appliance would also become live or "hot". Touching it, along with a real earth connection such as a water faucet, could cause electrocution.Additionally, if the earth connection is simply missing, then an internal malfunction within the appliance could cause the chassis and/or its metal case, if there is one, to become live or "hot", creating the same risk of electrocution.The purpose of the earthing connection is - in the event of appliance malfunction - to cause a high enough fault current that will force the protective device (fuse or circuit breaker) to trip and break the supply of current to the appliance.
Why is earthing important?
1. To prevent the buildup of static electricity 2. For safety-a voltage short will blow a fuse or trip a breaker. If hot AC gets to a metal cabinet that is not grounded, the the cabinet will be "hot" and if you get between "hot" and ground you could be shocked and possible death. Others can add more I'm sure. ("Earthing" is another term for "grounding" in electrical wiring.)
Why need for earthing?
in most uk installations a system of earthing called "earthed equipotential bonding and automatic discnnection of the supply" is used. All exposed metalwork is connected together and back to the supply authorities earthing. This with careful design can ensure that if there is a short circuit from the live cable to any metal the resistance path to earth is so small that a high current (fault current) flows in the circuit and the fuse or circuit breaker will disconnect. Thereby preventing possible exposed metal becomming live and potentially leathal. Failure to maintain a good earthing system can result in exposed metal parts becoming live under fault and no disconnection of the fuse or circuit - VERY DANGEROUS!!
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