IEC 60317-54 pdf download Specifications for particular types of winding wires – Part 54: Polyester enamelled round copper wire, class 1 55L 1Scope This part of lEC 60317 specifies the requirements of enamelled round copper winding wire ofclass 155L with a sole coating based on polyester resin，which may be modified providing itretains the chemical identity of the original resin and...