The kid asked me when I had a high voltage line, a high voltage tower, how?

When you need to send electricity from a distance, the road is long, and you need high-voltage lines and high-voltage towers, which are generally outside the city, and there are power plants in the middle of the city.

When there is high-voltage electricity that needs to be transmitted, there will be high-voltage lines and high-voltage towers.

If you have a power plant, and when ,,, can you use electricity?

The high-voltage tower is part of the national power grid and its main role is to transmit large amounts of electricity over a vast land area. The Maldives is a country of islands with a total land area of only 300 square kilometres. Because the country is too small and scattered (27 islands), the amount of electricity used is small and there is no way to connect to the Internet, and it is not suitable for a national power grid.

The country currently relies on independent systems for power generation, with each island having a separate power station that relies on natural gas to generate electricity.

Sack sack, where a sack can be loaded, what kind of high-pressure tower do you want?

The Maldives is going to be flooded, the tower is being built to waste human and material resources, etc., and we have to be children who protect the environment.

The former Soviet Union built the world's first 1150KV UHV AC transmission line in 1980, and 396km was put into operation in 1984. The Soviet Union has built more than 1,150 kV 2,000 km, including five substations in Ekibastuz, Eastern Lyabinsk, Kustannay, Kokchetav and Barner. In the territory of the Republic of Kazakhstan, there are 1150kV lines of 1200km, of which the Ekibastuz-Kokchetav-Kustannay section is about 900km long and operates with a voltage of 1150kV, and the other sections mainly operate with 500kV step-down.

Hello, the high-voltage line planning and construction of the power supply department is fully demonstrated and approved by the relevant departments, and strictly abide by the relevant national and industry standards in the construction process to ensure that the safety distance between the high-voltage line and the building meets the relevant regulations, if you have any questions, call 95598 power supply service ** for feedback, we will have someone to follow up for you.

Just like Tiananmen Square is not surrounded by high-rise buildings, historical, commemorative, and influential will be protected in the visual aspect.

Away from du:

The safe distance of the high-voltage line below 1kv is.

DAO within 4 meters;

The safety distance of 1-10kV high-voltage line is 6 meters;

The safety distance of 35-110kv high-voltage line is 8 meters;

The safety distance of 154-220kV high-voltage line is 10 meters;

The safety distance along the 350-500kv high line is 15 meters.

Safety management documents.

Date: Unit:

High-voltage wire safety distance.

There is no clear distance regulation in China regarding the safe distance between the high-voltage line and the residential building, but there is a relevant standard that can be converted: the magnetic induction intensity of the location of the residential building is 100 microtesla, which meets the construction standard. Measured:

The safety distance of the high-voltage line below 1kV is 4 meters; The safety distance of 1-10kv high-voltage line is 6 meters; The safety distance of 35-110kv high-voltage line is 8 meters; The safety distance of 154-220kV high-voltage line is 10 meters; The safety distance along the 350-500kv high line is 15 meters. The above is considered from the perspective of electromagnetic radiation.

If considered from the perspective of electrical safety, and considering the wind deviation of the high-voltage line caused by strong winds, according to the "Detailed Rules for the Implementation of the Regulations on the Protection of Electronic Facilities", the horizontal safety distance from the building of the voltage conductor edge at all levels is as follows: less than 1kV: m; 1kv-10kv：

m, 35kv: m, 66kv-110kv: m, 154kv-220kv:

m, 330kv: m, 500kv: m.

Regulations on the Protection of Electric Power Facilities

1) Overhead power line protection area: the area within the two planes formed by the horizontal extension of the side conductor to the outside and the vertical ground, and the edge line extension distance of the voltage conductor at all levels in the general area is as follows:

1-10kv5m

35-110kv10m

154-330kv15m

500kv20m

In densely populated areas such as factories and mines, cities and towns, the protection area of overhead power lines can be slightly smaller than the above provisions. However, the distance of the extension of the voltage side wire at all levels should not be less than the sum of the horizontal distance of the wire edge after the maximum calculated sag and the maximum calculated wind deviation and the safe distance from the building after the wind deviation.

The high-voltage line does not produce electromagnetic radiation, and mainly produces the power frequency electric field and power frequency magnetic field. There is no radiation, no harm to the human body, and there is no need to worry too much.

According to experts, the International Commission on Non-Ionizing Radiation Protection stipulates that the power frequency electric field strength is 5,000 volts for the public, and the limit for power frequency magnetic induction is 100 microtesla. The standards adopted by China are more stringent, with 4000 volts and 100 microtesla respectively as the safety standards for power frequency electric field and power frequency magnetic field.

At the location closest to the high-voltage line in the residential building, the radiation value of the measured power frequency electric field is basically about one volt meter, which is obviously lower than the national limit. The power frequency electric field at the other measurement position is voltile, and the power frequency magnetic field is micro Tesla, which is also far lower than the national standard.

General construction steps: 1. High-voltage wire tower construction 1. Line survey and design, select the line channel, tower positioning, and tower type 、......2. Line construction: manpower transportation of basic materials and tools (sand, stone, water, cement, steel bars, construction templates, vibration and mixing equipment, etc.) - excavation of the foundation of the tower (excavation according to the type of the tower foundation) - manpower transportation of tower materials and tools (tower materials, poles, motorized or manpower grinding, etc.) - assembly of the tower (assembly and construction according to the assembly drawing of the tower) Second, the construction of high-voltage wire frame facilities The process is relatively complex, to put it simply:

Use a traction wire rope (the weight is much lighter than the wire), through the manpower (special use of airships, etc.), over a base tower Traction wire rope one end is connected with the traction machine, and the other end is connected with the wire (generally connected with a snakeskin sleeve), start the traction machine, and pull the wire over like a needle lead.

It depends on the weight of the tower, which is generally calculated by ton, seven or eight years ago it was 8,000 tons, and the small tower in the city is generally less than a ton, and the 110kv or 220kv with a height of thirty or forty meters is generally 20 to 40 tons. Then the construction and installation ** is about 3 times that of the iron tower**, and then there is land compensation, and the seedlings in the field are compensated, which we can't calculate, and the ** is different in each place.