The PСV 120B 112W suspension glass insulator is designed for insulating and securing conductors and ground wires on overhead power lines, as well as in distribution devices of power plants and substations with alternating current voltages above 1000 V and frequencies up to 100 Hz. The insulator operates in ambient temperatures ranging from -60 to +50 °C and complies with the UHL 1 category according to GOST 15150. It is manufactured according to TU 3493-004-99267582-2009 and meets the requirements of GOST 6490-2017. A distinctive feature of the insulating part is the increased rib projection, which extends the leakage path length. In international classification, such an insulator is referred to as "Anti Fog," indicating its suitability for areas with high atmospheric pollution, heavy frost formation, and frequent fogs that contribute to surface moisture accumulation.