The electrical lines to a typical house in the UK are 230 V 50 Hz.
240Volts in the USA.
EHV lines are type of electrical lines commonly used for experimentation in physics. They stand for 'Extra High Voltage' lines.
A power substation is used to reduce the voltage from high voltage power lines to a voltage that is less dangerous that you can use in a house for example. It is less costly to transmit electrical energy over long distances using high voltage.
No, there are many instances where AC high voltage lines are installed underground. Where an industrial building has an electrical vault within the building, the high voltage is brought to it using high voltage cables in conduit to supply the vault with primary voltage. These types of installations are usually only used where the customer uses a high volume of electrical power.
It has to come along wires all the way. Some of the wires may be high-voltage overhead lines on pylons, or medium voltage lines on wooden poles, or low voltage (e.g. 240 v) for delivery to the house, which might be fed from overhead or underground cables.
The balls on some power lines are required so that airplane pilots will be able to avoid flying into the lines.
Yes, the frequency stays the same. Only the voltage and current change as the voltage is stepped down.
The power lines carry alternating electrical current and voltage. This produces an electrical and magnetic field around the wire. Some of the electrical energy thus escapes in the form of electromagnetic radiation. The wires do not carry the radiation. They radiate it because of the electrical power flowing in them.
Inside the walls.
The water heater will work if it will fit dimensionally. The proper electrical voltage and amperage are necessary if it is electric . Propane or natural gas will also work with the proper supply lines .
due to corona loss at high voltage on line and insulation failoure beween conductors.these is see in high voltage lines i.e, means >400 Kv.