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Why is it dangerous to pass to much current through the mains cable?
Wiki User
∙ 13y ago
Current or AMPS are what the appliance draws or load of the appliance. So, if you have a say 10,000 amps going thru a cable rated for say 1,000 amps , guess what ,the cable over heats and either will melt or at least catch fire.
Wiki User
∙ 13y ago
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What is the function of a mains lead in a strip heater?
A mains lead is the power cable for the strip heater. The mains lead is single-insulated.
Who do you contact to have mains electric cable laid to your property?
The electrical supply authority for your area
Why is mains electricity dangerous?
because your body is controlled by electric impulses that are far weaker. Mains power can knock your bodys signals out, causing your heart to stop pumping.
Advantage of current limiting?
Current limiting is the practice in electrical or electronic circuits of imposing an upper limit on the current. The simplest form of current limiting in mains is fuse.
What are electrical rising mains?
The rising mains are essentially used in electrical distribution system in buildings two storied and above. It is basically used in indoor applications. Nowadays vertical type distribution is normally used as it is more convenient and reliable compared to rising cable system.
Which wire is the most dangerous in a plug?
The Active wire is always either Red (in a 3 core Red, Black and Green cable) or Brown (in a 3 core Brown, Blue and Green/Yellow cable). You can also be electrocuted by the neutral (Black or Blue) wire if the active is still supplying current through a device. The only truly safe way to handle mains wiring is to completely isolate the circuit at the fuse board.
What is the function of the power supply cable?
· A power cord, line cord or mains cable is known as the supply cable, which temporarily connects an appliance to the mains electricity supply to a wall socket. · A supply cable connects the refrigerator to the mains electricity supply via a wall socket.
What is the function of the power cables?
· A power cord, line cord or mains cable is known as the supply cable, which temporarily connects an appliance to the mains electricity supply to a wall socket. · A supply cable connects the refrigerator to the mains electricity supply via a wall socket.
What is the function of a mains lead in a strip heater?
A mains lead is the power cable for the strip heater. The mains lead is single-insulated.
What is difference between battery and mains electricity?
Mains supply provides alternative current while battery provides direct current.
What you get from mains voltage or current?
You get power, which is voltage * current (so both!).
What element has cable for a ring mains at 230v or higher?
the answer to this question is copper
What is service mains in power transmission system?
A 'service mains' is not associated with an electricity 'transmission' system, but with a low-voltage 'distribution' system. The service mains is the name given to the cable that connects a building to the low-voltage mains supply.
Why is mains electricity more dangerous than battary?
Two main reasons: - voltage - batteries usually(but not always) have such a low voltage that they can't push a dangerous current through a human body. - muscle interaction - Batteries are DC (direct current) while mains are AC (alternating current). And AC current will cause the muscles to spasm and lock, so if you were to accidentally grasp something electric, it'll be really hard to break free. But don't get this wrong. If you know what you're doing, it's entirely possible to kill yourself with nothing but a 12-volt battery.
How much current is consumed for a tubelight which has 40W for domestic use?
In most of North America, the mains supply to the home is 120 volts. Thecurrent through a device dissipating 40 watts is 40/120 = 1/3 Ampere.In most of the rest of the world, the mains supply to the home is 220 volts.The current through a device dissipating 40 watts is 40/220 = 0.18 Ampere.
Who do you contact to have mains electric cable laid to your property?
The electrical supply authority for your area
How do you ground home recording system?
If you are getting a humming noise then you probably have an earth loop. This is where the resistance from one piece of equipment has a higher resistance than on other piece that it is connected to. The current flows through the lower resistance piece of equipment back to the earth on the mains causing the hum. There are two ways to cure this. the method used by recording studios is to create a star Earth. This is where all the earths from all devices comes back to a central earth point then to the mains earth. The alternative method is to break the shield at one end on the patch lead that goes from each device to interrupt the mains loop and force the earth current to run back down the mains cable earth.
