Electricity production is a complex process.The essence of this technology is to convert one form of energy into another.Thus, at thermal power stations heated to a certain temperature water or steam turbine generator is rotated, whereby electric current is produced.But to produce energy is not enough.We must deliver it to the end user.For this purpose, power lines - lines.An important role in the design of elements play a supporting insulators.Speaking simplistically, their task is to share current wire and support.
order to isolate them from each other and used suspended pin insulators.Product design is chosen depending on the power line.On overhead lines with capacity of 110 kV and above are only suspended variants.Anyway, until recently operated an appropriate standard.The fact that traditional materials for insulators - a tempered glass and porcelain.In accordance with their physical characteristics, they can withstand high loads in tension and compression.However, the flexural strength of the case is not enough.
on overhead power lines with a capacity of 35 kV and below may be applied post insulators.They can always be seen on the wooden and concrete poles.Under current regulations, the distribution of electricity to specific consumers is performed using power lines 0,4 kV.In Russia, the Soviet Union and the Russian Federation today, this standard acts consistently.The usual outlet, which is in each apartment, the supply voltage is equal to 220 W. Under the figure calculated all appliances and a large part of industrial equipment.
By design support insulators are more convenient to use than the suspension.However, at high voltages, the technical specifications do not provide the required parameters.This has already been discussed above.In order to achieve the relevant qualities, conducted systematic work on the creation of new materials and improved configuration of the insulator.In this context, it is important to note that it should firmly carry out its functions under all specified operating conditions.It refers to the fact that, when moisture is not a short circuit line to "ground."
Currently, for manufacturing insulators began using polymeric materials.Compared with traditional - glass and porcelain - they have a higher technological and design parameters.Because of this, the cost of production decreased, and improve their performance.Currently, in the design of 110 kV transmission line is possible to do a comparative analysis to determine which is more favorable to apply sealants.It should be noted the fact that the development of the design requires a large investment of time and resources.Each new specimen must be tested under actual operating conditions.
