IEC 60317-71 pdf – Specifications for particular types of winding wires – Part 71: Polyester glass-fibre wound and resin or varnish impregnated, bare or enamelled round copper wire, temperature index 180
This part of lEC 60317 specifies the requirements of polyester glass-fibre wound resin/varnish
impregnated,bare，grade 1 or grade 2 enamelled round copper winding wire,temperatureindex 180.
NOTE For this type of wire, the heat shock test is inappropriate and therefore a heat shock temperature cannot beestablished. Consequently，a class based on the requirements for temperature index and heat shock temperaturecannot be specified.
The nominal conductor diameters are specified in IEC 60317-O-10:2017,Clause 4.
The following documents are referred to in the text in such a way that some or all of theircontent constitutes requirements of this document. For dated references，only the editioncited applies. For undated references, the latest edition of the referenced document (including
any amendments) applies.
IEC 60317-0-10:2017,Specifications for particular types of winding wires – Part 0-10: General
requirements – Polyester glass-fibre wound fused， unvarnished, or resin or vamishimpregnated, bare or enamelled round copper wire
3Terms,definitions,general notes and appearance
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in lEC 60317-0-10 apply.
ISO and IEC maintain terminological databases for use in standardization at the followingaddresses:
. IEC Electropedia: available at http://www.electropedia.orgl
. Iso Online browsing platform: available at http://www.iso.org/obp3.2General notes
3.2.1Methods of test
Subclause 3.2.1 of IEC 60317-0-10:2017applies. In case of inconsistencies betweenIEC 60317-0-10 and this document, the latter shall prevail.
The fibre covering shall consist of a combination of polyester and glass fibres. The glassfibres shall be electrical-grade continuous-filament glass yarn. The polyester fibre shall be ahigh-grade yarn resulting from the linear polymerization of ethylene glycol and terephthalicacid.The maximum content by weight of polyester fibre in the yarn shall not exceed 50 %.
The enamelled wire shall have a temperature index of at least 180 and shall be agreed between purchaser and supplier.
The temperature index of the wire is dependent upon the type of impregnating agent used.
The impregnating agent applied to the polyester glass fibre shall have a minimum temperature index of 180.
The covering shall have one of the following grades of thickness:
– PG1: bare conductor with 1 layer of polyester glass fibre or 2 layers of finer polyester glass fibres that together, comply with the dimensional requirements in IEC 60317-0-10;
– PG2: bare conductor with 2 layers of polyester glass fibre;
– grade 1 PG1: enamelled grade 1 (grade 1) with 1 layer of polyester glass fibre (PG1);
– grade 1 PG2: enamelled grade 1 (grade 1) with 2 layers of polyester glass fibre (PG2);
– grade 2 PG1: enamelled grade 2 (grade 2) with 1 layer of polyester glass fibre (PG1);
– grade 2 PG2: enamelled grade 2 (grade 2) with 2 layers of polyester glass fibre (PG2).
Subclause 3.3 of IEC 60317-0-10:2017 applies.
Clause 4 of IEC 60317-0-10:2017 applies.
5 Electrical resistance
Clause 5 of IEC 60317-0-10:2017 applies.
Clause 6 of IEC 60317-0-10:2017 applies.
Clause 7 of IEC 60317-0-10:2017 applies.
8 Flexibility and adherence
Clause 8 of IEC 60317-0-10:2017 applies.
9 Heat shock
11 Resistance to abrasion
12 Resistance to solvents
13 Breakdown voltage
Clause 13 of IEC 60317-0-10:2017 applies.
14 Continuity of insulation
15 Temperature index
Clause 15 of IEC 60317-0-10:2017 applies.
16 Resistance to refrigerants
18 Heat or solvent bonding
19 Dielectric dissipation factor
20 Resistance to transformer oil
21 Loss of mass
23 Pin hole test