Polymer insulators for installation under a canopy, outdoors or in rooms where temperature and humidity fluctuations are not significantly different from those in the open air, designed for insulation and attachment of current-carrying parts in electrical apparatus, open switchgear (ORU), auxiliary transformers (ATS) of nuclear power plants, substations and nuclear power plants of alternating current voltage of 24 kV with a frequency of up to 100 Hz.Climatic design of insulators is UHL and T, placement category 2 according to GOST 15150. Insulators are designed for operation at an altitude of more than 1000 m above sea level at ambient air temperature from minus 60C to plus 50C and relative humidity of 80%.
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