Support insulators for overhead power lines

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2018-03-28 18:31:09

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The Production of electricity is a complicated process. The essence of this technology is to convert one form of energy to another. So, at thermal power stations heated to a certain temperature water or steam to drive a turbine generator resulting in electric current is produced. But to produce energy is not enough. Need to get her to the final consumer. For this purpose, power lines – transmission lines. An important role in the design of the play elements of the base insulators. Basically, their task is to split the live wire and the support.

Support insulatorsIn order to isolate them from each other are used in suspension and post insulators. Product design is selected depending on the power line. In the case of overhead lines with capacity of 110 kV and above uses only the suspended options. In any case, until recently, operated an appropriate standard. The fact that the traditional materials for the insulators – is tempered glass and porcelain. In accordance with their physical characteristics, they can withstand large loads in tension and compression. However, the Flexural strength is not enough.

Materials for the insulatorsOn the overhead power lines with a capacity of 35 kV and below can be used support insulators. They can always be seen on wooden and concrete poles. According to current regulations and rules, distribution of electric power to specific consumers by using transmission lines with capacity of 0.4 kV. In Russia, in the Soviet Union and today in the Russian Federation this standard is effective consistently. In the conventional socket, which is in each apartment, the mains voltage is 220 V. Under this indicator, all appliances and a large part of industrial equipment.

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What are insulators profitableIn its design of the supporting insulators is more convenient to use than the pendant. However, at high voltages, their specifications do not provide the required parameters. This has already been discussed above. In order to achieve these qualities, systematic work on creation of new materials and improved configuration of the insulator. In this context, it is important to note that it has to reliably perform their functions under all specified conditions of operation. Refers to high humidity has not occurred short-circuit lines on “the ground”.

Support insulatorsCurrently, the insulators began to use polymeric materials. Compared with the traditional – glass and China – they have higher technological and structural parameters. Because of this decreased cost of goods and increase their characteristics. Currently, in the design of transmission lines 110 kV you can do a comparative analysis to determine which insulators are cheaper to use. It should be noted the fact that the design requires a large investment of time and resources. Every new sample must be tested in real conditions.


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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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