Abstract： IEC 60317-7:1997 pdf free download.Specifications for particular types of winding wires - Part 7: Polyimide enamelled round copper wire,class 220. Class 220 is a thermal class that requires a minimum temperature index of 220 and a heat shoc...

IEC 60317-7:1997 pdf free download.Specifications for particular types of winding wires - Part 7: Polyimide enamelled round copper

wire,class 220.

Class 220 is a thermal class that requires a minimum temperature index of 220 and a heat shock temperature of at least 240 C.

The temperature in degrees Celsius corresponng 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 corxkictor diameters covered by this standard is:

— Grade 1: 0,020 mm up to and including 2,000 mm;

— Grade 2: 0.020 mm up to and including 5.000 mm.

The nominal conductor diameters are specified in clause 4 of IEC 60317-0-1.

2 Normative references

The tollowin standard contains provisions which. thrvuyh reference in this text, constitute provisions of this International

Standard. At the time of publication, the edition indicated was valid. All standards are subject to revision, and parties to

agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent edition

of the standard indicated below. Members of IEC and ISO maintain registers of currently valid international standards.

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