The Stenlypol Company, Minsk, Belarus offers co-operation in the sphere of cleaning high-voltage insulators for electric power plants, transformer substations, indoor and outdoor switchgears.

Soiling of high-voltage insulators influences very much its insulating properties, leads to insulation failures and breakdowns of an expensive electric installation. In addition, building up soiling leads to increase in conduction current of insulators, thereof, to considerable loss during electric-power transmission. Thereby, by using the know-how developed by Stenlypol Company the customer extends the operating period of an insulator itself, minimize the probability of its failure and stoppage of the electric power plant for capital repair, contributes to energy saving, cuts financial expenditures for its transmission. The last becomes possible thanks to the cutback in leakage current in 4-5 times as the result of insulation cleaning. If one considers the costs of insulators (appr. 20-100,000 USD), high-voltage converters (appr. 1,500,000.00 USD) and repair costs after insulators’ failure it seems better to

follow simple cleaning procedures regularly. Frequency of insulation cleaning of switchgears and high-voltage bushings is set in concordance with the measurements of an insulator’s surface resistivity. The cleaning should be frequent enough to avoid surface soiling completely and occurrence of discharge glows. For insulators’ cleaning special high-pressure (150-400 bars) hydraulic equipment is used. Abrasive paste developed by Stenlypol Company together with the usage of the

hydroabrasive cleaning technology helps to remove organic and inorganic deposits from the insulator’s surface without damage to the glaze coating. Abrasive paste is environment friendly and has no ecological effect if spilled on the ground.