IEC 60317-18:2004 ED3

Specifications for particular types of winding wires - Part 18: Polyvinyl acetal enamelled rectangular copper wire, class 120

Publication date:   Aug 24, 2004

General information

99.60 Withdrawal effective   Jun 5, 2020



TC 55 Winding wires

International Standard

29.060.10   Wires



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minimum 2,0 mm; minimum 0,80 mm; Specifies the requirements of enamelled rectangular copper winding wire of class 120 with a sole coating based on polyvinyl acetal resin, which may be modified providing it retains the chemical identity of the original resin and meets all specified wire requirements. Class 120 is a thermal class that requires a minimum temperature index of 120 and a heat shock temperature of at least 155 °C. The temperature in degrees Celsius corresponding to the temperature index is not necessarily that at which it is recommended that the wire be operated and this will depend on many factors, including the type of equipment involved. The range of nominal conductor dimensions covered by this standard is as follows: - width:maximum 16,0 mm; - thickness:maximum 5,60 mm. Wires of grade 1 and grade 2 are included in this specification and apply to the complete range of conductors. The specified combinations of width and thickness as well as the specified ratio width/ thickness are given in IEC 60317-0-2. The main changes with respect to the previous edition are listed below: - new requirements for appearance, Subclause 3.2, added; - new pin hole test, Clause 23, added.

Life cycle


IEC 60317-18:2004 ED3
99.60 Withdrawal effective
Jun 5, 2020


Amended by
IEC 60317-18:2004/AMD1:2009 ED3


IEC 60317-18:2020 ED4