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The reason is power arcing.
See section "Common Noise Sources" at:
http://www.w8ji.com/radiated_and_conducted_noise.htm
AnswerThe noise associated with high-voltage lines is caused by the breakdown of the insulating properties of air due to the intense electric fields established at 'sharp' points on the line which act to concentrate the field at those points.
What else can I help you with?
What is the difference between HT and LT line?
ht cable that means voltage level is high , it is obvious that power is going to remain same ,so if voltage rises ,current has to be lowered .since current level is less in ht cable therefore size (dia) is less compared to l.t cable , (p=v.i),lt cable current rating is more and voltage rating is less
How do you measure the current and voltage in high tension line?
To measure high voltage use suitable instrument transformer (potential transformer) Very carefully. It can kill you. The higher the voltage the more the danger or arcing over even when two conductors are not touching. Voltage meters are rated and the rating should not be exceeded. Depending on the voltage you will need the proper meter and a high voltage probe rated for the voltage you are measuring. If you don't know what you are doing, don't mess with high voltage. Leave to the pros.
Why are power lines run at high voltages?
Power lines run at high voltages to overcome line loss.
What are the advantages of 750Kv high voltage?
A high voltage like 750kV is used in transmission lines because this reduces the current in the wires for a given amount of power. A reduced current will reduce the power lost in transmission (I^2R).CommentFar more importantly than reducing line losses, it reduces the voltage drop along the line which would, otherwise, be enormous!
How can measure the voltage only seeing the insulators in a high voltage transmission lines?
i think 11kv per insulator
Does living next to high voltage power lines give you cancer?
No.
Does AC have to be converted to DC in order to bury high voltage power lines?
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.
What are the release dates for World's Toughest Fixes - 2008 High Voltage Power Lines 1-3?
World's Toughest Fixes - 2008 High Voltage Power Lines 1-3 was released on: USA: 1 October 2008
Why do power lines have a high voltage in order to minimize current and heat loss?
Power lines have a high voltage to reduce the amount of current flowing through them, which helps to minimize heat loss and energy waste during the transmission of electricity.
What distributes electricity?
Electricity is distributed through a network of power lines, transformers, and substations. Power plants generate electricity and transmit it through high-voltage transmission lines to substations, where the voltage is lowered for distribution to homes, businesses, and other buildings through power lines.
Is it safe to touch power lines?
No, it is not safe to touch power lines. Power lines carry high voltage electricity and touching them can result in serious injury or death. It is important to always stay away from power lines and never attempt to touch them.
What is use of substaion near grid station?
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.
Why do humans get electrocuted on power lines?
Humans get electrocuted on power lines because the high voltage electricity flowing through the lines can pass through their bodies, causing serious injury or death.
How do high voltage transmission lines use electricity to efficiently transport power over long distances?
High voltage transmission lines use electricity to efficiently transport power over long distances by increasing the voltage of the electricity. This allows for the power to travel long distances with minimal loss of energy. The high voltage reduces the amount of current needed, which in turn reduces the energy lost as heat during transmission.
Is it safe to raise kids under high voltage power lines?
There is no scientific evidence to suggest that living near power lines causes any kind of health problems.
Waves given off by electric power lines are too to be seen?
The electromagnetic waves given off by high voltage power lines are beyond the visible part of the spectrum.
Why are power lines high voltage and what are the advantages of transmitting electricity at high voltages?
Power lines are high voltage to reduce energy loss during transmission. Transmitting electricity at high voltages allows for more efficient long-distance transmission, reduces the amount of current needed, and minimizes heat loss, resulting in cost savings and increased reliability of the power grid.
