Round wire with polyimide and fluoroplastic insulation

Heat resistant winding wire of circular cross-section of PPI-U and PPI‑UM

The heat resistant round winding wire of PPI‑U and PPI‑UM makes are produced by means of round wires winding with polyimide and fluoroplastic film followed by combined heat treatment for insulation including inductive warming of electric core and the wire external heat. Above procedure ensures a high degree of insulation adhesion to the electric copper core and so improves specification data greatly. The wires insulation is made of polyimide and fluoroplastic films from leading global producers. It differs by elasticity and mechanical stability. The wires meet the strict requirements for safety and reliability.

The wires are designed for the manufacture of windings for oil-filled submersible motor stators of centrifugal pumps for oil extraction as well as industrial purpose motors, railway motors and specialized electrical machines.

The wires comply with the TU 16‑705.159‑80 «Provoda obmotochnyye teplostoykiye s emalevo-plenochnoy i plenochnoy poliimidno-ftoroplastovoy izolyatsiyey» requirements.

Main technical characteristics