VPO Electrical Network Insulation

The history of the domestic production of linear fittings and insulators began with the organization in October 1933 of the decision of the board of the People’s Commissariat of Industry of the Armset technical office - an organization for the design, manufacture, completion and marketing of network fittings, insulators and mounting accessories for the construction of high-voltage power lines and substations of the People’s Commissariat of Power Plants of the USSR , which was transferred to the insulator plant them. Artem in the city of Slavyansk .

In a short time, all types of necessary towing, supporting and tensioning reinforcement were introduced into production . Domestic wedge and bolt clamps, clamps with limited termination strength, vibration dampers were developed, which made it possible to refuse large foreign deliveries of these products important for the development of the domestic industry.

During the Great Patriotic War, the Slavic plant was destroyed, and the construction of high-voltage power lines in the eastern regions of the country was carried out by dismantling the previously existing lines.

In 1944, the Slavic Armature Insulator Plant (SAIZ) was restored and 60 thousand units were produced. suspension insulators for power lines.

In the postwar period, the need for insulators and fittings increased every year due to the large-scale construction of high-voltage power lines in the USSR, therefore, in May 1953, the USSR Ministry of Construction of Power Stations approved a plan for the construction of a new plant for the production of insulators and linear fittings in Yuzhnouralsk, Chelyabinsk Region ( UAIZ ) in order to expand production and reduce their imports from abroad.

In 1955, the Khartsyzsk foundry was included in the Armset trust to provide castings for the SAIZ and UAIZ plants.

In 1963, the Armset trust was reorganized into the Electric Network Insulation Trust. In the same year, the Central Research Laboratory (TsNIL) for insulators and fittings was created.

In 1964, the construction of a new factory of insulators in Lviv began , and in 1970 the Lviv Insulator Plant was commissioned.

In 1970, based on the Central Scientific Research Laboratory, SKTB was organized with a number of major laboratories and an experimental base, and the construction of a high-voltage research complex began. A unique test equipment for voltage of 750 kV inclusive was put into operation at SKTB. Through the efforts of SKTB employees, projects were developed for the first transmission lines of 500, 750, 1150 kV, unique crossings across the Dnieper , Volga , and Ob . They also created a unique armature for the 1800 kV power transmission line.

In 1971, the Tovarkovsk high-voltage armature plant was transferred to the State Union Trust "Electric Network Insulation".

In 1975, the Novoseltsevsky pilot plant of linear and substation valves was included in the trust.

In 1980, the trust was transformed into the All-Union Production Association Soyuzelektrosetizolyatsiya.

The products of the trust were used at all the largest construction sites in the Soviet Union, including such well-known facilities as the Moscow Metro , the Sayano-Shushenskaya Hydroelectric Power Station and the Baikal-Amur Railway .

In 1981, for the successes achieved, the All-Union Production Association Soyuzelektrosetizolyatsiya was awarded the Order of the Red Banner of Labor .

After the collapse of the USSR in 1991, three factories remained in the territory of Russia and as part of the association, producing reinforcing-insulating products: the Tovarkovsky high-voltage reinforcement plant, the South Ural reinforcing-insulating plant and the Novoseltsevsky substation and linear reinforcement plant.

Russian enterprises succeeded in restoring the production of linear fittings and insulators manufactured at Ukrainian plants only in the late 1990s.

After privatization in 1994, the All-Union Production Association Soyuzelektrosetizolyatsiya was transformed into an open joint-stock company PO Electric Grid Insulation.

In 2011, OJSC PO Electric Network Insulation established a closed joint-stock company VPO Electric Network Insulation.

VPO Elektrosetizolyatsiya CJSC continues its work on providing the Russian electric power industry with insulators and linear fittings (including die clamps, brackets, earrings, etc.). Together with OJSC “SKTB on insulators and linear fittings”, several types of polymer insulators with an insulating part and a terminator that meet the European standard are developed annually. The products of VPO Elektrosetizolyatsiya CJSC are intended for use in the construction of power lines and outdoor switchgears of substations with a voltage of 0.4-1150 kV.

• Electrical Insulators / under. ed. N. S. Kostyukova. - M .: "Energoatomizdat", 1984.
• "Inventor and rationalizer." - 1984, No. 4, p. 9.

• Site "VPO Electrical Network Insulation"