Electrical Wiring

Wait for the power to be turned off, or for a trained electrical technician to cut the power to the wires. As long as you are not grounded, the electric current will not flow through you.

Of course, if the electric discharge starts a fire, you may not have this option. You would have to leave the car without touching its metal exterior or any live wires, which is an extremely hazardous undertaking...........wait for someone from the power company to come to help

To answer this question the output voltage of the generator must be stated. Breakers are sized to protect the wire that is connected to it. Wire is sized by the amperage that it can carry.

Once the voltage is stated use the following equation Amps = kW x 1000/1.73 x Volts x pf. for three phase and Amps = kW x 1000/Volts x pf. In both cases use .9 for a power factor value.

Bolivia uses the same as electricity service standards as countries in Europe: 230 volts 50 Hz single phase alternating current. Home appliances are fitted with Europlugs Types A and C.

All electrical equipment, regardless of the voltage, should have a voltage supply that is no more than plus or minus 5 per cent of the equipments stated voltage requirement.

It depends on which country that you live in. European and UK, the household voltage is 230 volts. In North America, the household voltage is 120 volts. Other countries around the world, the blankets that are sold will match the household supply of that country.

Your AC electrical service's voltage and frequency, and the types of plugs and sockets you can use, depend on the place where you live in the world.

If you want more detailed information please see the Related Link and some Related Questions shown below.

i thank that electric curcuits are used for elevators,electrical doors,stoves ,and other stuff like that

Usually is Black and Red or gray (in old building ). Some time if you see white wire that mark in red or black ( either mark with tape or ink ), it consider live wire. Just to be sure, get the tester and check it everytime you work with electrical wire. Shut off power at the main if you can for extra safety.

For connection plates = 10-15 Nm

yes

No. No quite true. NASA will recycle solder if old . LEAD is not exactly a clean metal it show oxidation if very old. Can it be used on your hobby yes of course.

See related links below.

A one gang switch is like an ordinary switch box in your home. When there is more than one box, the electrical terminology used is ganging the boxes together. Two switches side by side in a single box is expressed as a two gang box. Three switches side by side in a single box is a three gang box.

A single phase circuit is a circuit that gets is supply voltage from a single phase supply system. In North America the single phase supply voltages are 120/240 volts. A single phase circuit can also be supplied from any two legs of a three phase system. The most common voltages in North America from a three phase system are 120/208 volts.

yes

Lagging means the current is out of phase, lagging behind, the voltage. This occurs when there is inductive reactance in the circuit, such as with motors and transformers.

Probably not. For more information click on the Related Link shown below.

Power can be calculated in each individual phase and summed together. If the voltage is supplied L-N in RMS: P = V*I. Note this will give the same answer as calculating balanced three phase power from the equation P = V*I*sqrt(3)

A synchronous motor can be a type of 3-Phase AC motor, or not.

A synchronous motor is defined by the period of the rotor being synchronized with the frequency of the stator windings' current. The stator windings might be 3-Phase or not (2-Phase would work).


Also synchronous motors are not the only type of 3-Phase AC motors. An induction motor could also be 3-Phase AC and has a few advantages and disadvantages over a synchronous motor.

The only safe way to run any small household appliance, such as a blender -- which uses alternating current (ac) -- from a battery -- which can only produce direct current (dc) -- is to use a power inverter unit such as the type sold for use in caravans, boats, etc. They can be obtained from car accessory shops and usually run off a 12 volt car battery.

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Before anyone could even start to give any other answer to this question they would have to know the motor's voltage and be sure if it can actually run on direct current. It may only run on alternating current as is delivered by a household power supply.

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Unless they are actually being trained or supervised by a qualified science teacher or electrician, in general it is very dangerous for someone who is a novice in working with any kind of electricity to plan to connect several batteries together to produce voltages as high as 120 or 240 volts.

No, a 4160 volt motor with a high inertia load will use a resistor bank in the starting of the motor.

The thickness of a motor is governed by the manufacturer that makes the motor. Some motors are built long and slender for example a submersible pump for a water well. Others are built with not much depth front to back but will have a diameter of six feet for example a synchronous motor for a large air compressor.

Two-phase systems have not been in general use for about 100 years because they were replaced by three-phase systems worldwide.

Another type of power that is still used is 'split-phase' which is a single-phase supply using a centre-tapped transformer. For example a supply transformer has a 240 v secondary with a grounded centre-tap, so that two separate 120 v live wires are connected to the property, along with the neutral. High-power appliances like cookers or aircon can be connected across the two live wires to work at 240 v.

Split-phase is also used in Europe with a 460 v centre tapped transformer used to supply a relatively small remote community, with individual properties fed a 230 v supply from one or other of the two live wires plus the neutral. The advantage is that it reduces the current in the neutral wire, and if both live wires happen to supply equal currents the neutral current going back to the transformer is zero, thus reducing power lost in the wire.

yes newspaper is a good insulator because it is thick and obsorbs