Linear pin-type porcelain insulators of the ShF type are designed for securing and insulating uninsulated and insulated wires of the SIP-3 type on overhead power lines and distribution devices of power plants and substations with alternating current voltages of 6–35 kV at frequencies up to 100 Hz, operating in ambient temperatures ranging from -60 °C to +50 °C.

The climatic version and placement category comply with UHL 1 according to GOST 15150. The conductor can be secured in the groove or on the neck of the insulator. Insulators are mounted on standard pins using caps of the "K" and "KP" types. They are manufactured according to TU 3493-041-51165501-2006 and comply with GOST 1232.