Polymer suspension line insulators type LK 160/500-I are designed for securing and insulating conductors of AC overhead lines with voltages of 500 kV and frequencies up to 100 Hz, operating in ambient temperatures from -60 °C to +50 °C. The climatic version and placement category are UHL 1 according to GOST 15150. Manufactured according to TU 3494-016-82442590-2011, these insulators comply with GOST 28856, GOST R 55189, and IEC 61109 standards.