... , Reach, SGS PEW coated enameled copper wire for transformer winding material TI 155 polyester enameled copper round wire ... motor winding coils, etc. (Except the oil-immersed transformer) CertificationsProcess of producing Technical test itermsMaximum Overall Diameter, Conductor ... Winding, Sudden Jerk, Cut Through, Heat Shock, Room Temperature Breakdown Voltage, High Voltage Hole, and Pin-Hole etc. ...