Polymer Pin Insulator for Uninsulated Wires LShP-20B for 20kV Power Lines

They are intended for fixing and insulation of bare and insulated wires of CIP-3 type on overhead power lines and switchgears of power stations and substations of alternating current with voltage of 20 kV with frequency up to 100 Hz at ambient temperature from minus 60 º? to plus 50 º?.
Climatic execution and placement category UHL 1 according to GOST 15150.