The LKPn type polymeric tension line insulators are designed to protect birds from electric shock upon contact with the insulator. Their use prevents power line outages caused by electrical flashovers due to birds and contaminants. According to PJSC "Rosseti" standards, these insulators have an insulation gap exceeding 700 mm, eliminating the need for additional bird protection devices.

LKPn insulators are intended for securing and insulating uninsulated conductors of 6–20 kV power lines and insulated conductors of the SIP-3 type 6–20 kV AC lines with a frequency up to 100 Hz. They ensure reliable operation in ambient temperatures ranging from –60 °C to +50 °C. The climatic design and placement category comply with UHL 1 according to GOST 15150.

The design of LKPn insulators allows their use without additional bird protection devices, simplifying installation and operation. They are manufactured in accordance with TU 3494-005-57966314-2006 and meet the standards of GOST 28856, GOST R 55189, and IEC 61109.