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BRITISH STANDARD

Specifications for
particular types of
winding wires —
Part 7: Polyimide enamelled round
copper wire, class 220

The European Standard EN 60317-7:1994, with the incorporation of
amendments A1:1997 and A2:1998 has the status of a British Standard

ICS 29.060.10

BS EN
60317-7:1995
IEC 60317-7:
1990
Incorporating
Amendment No. 1 to
BS 6811-3.8:1993
(renumbers BS as
BS EN 60317-7:
1995) and
implementing
Amendment No. 1 to
BS EN 60317-7:1995,
not published
separately

BS EN 60317-7:1995

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Committees responsible for this
British Standard
The preparation of this British Standard was entrusted by the Cables and
Insulation Standards Policy Committee (CIL/-) to Technical Committee
CIL/55, upon which the following bodies were represented:
Covered Conductors Association
Electrical and Electronic Insulation Association (BEAMA Ltd.)
Electronic Components Industry Federation
Transmission and Distribution Association (BEAMA Ltd.)

This British Standard, having
been prepared under the
direction of the Cables and
Insulation Standards Policy
Committee, was published
under the authority of the
Standards Board and
comes into effect on
15 February 1993
© BSI 03-2000
The following BSI references
relate to the work on this
standard:
Committee reference CIL/55
Special announcement in

BSI News, January 1993
ISBN 0 580 21955 0

Amendments issued since publication
Amd. No.

Date

Comments

8891

November Renumbered BS 6811-3.8:1993 as BS EN
1995

10304

May 1999

Indicated by a sideline in the margin


BS EN 60317-7:1995

Contents

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Committees responsible
National foreword

Foreword
Text of EN 60317-7
National annex NA (informative) Cross-references

© BSI 03-2000

Page
Inside front cover
ii
2
3
Inside back cover

i


BS EN 60317-7:1995

National foreword

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This British Standard has been prepared by Technical Committee GEL/55
(formerly CIL/55) and is the English language version of EN 60317-7
Specification for particular types of winding wires — Part 7: Polyimide enamelled
round copper wire, class 220, including amendments A1:1997 and A2:1998,
published by the European Committee for Electrotechnical Standardization
(CENELEC). It is identical with IEC 60317-7:1990, including amendment 1:1997
and amendment 2:1997, published by the International Electrotechnical
Commission (IEC).

The introduction to IEC 60317-7 reads as follows.
“This International Standard is one of a series which deals with insulated wires
used for windings in electrical equipment. The series has three groups describing:
1) methods of test (IEC 851);
2) specifications (IEC 317);
3) packaging (IEC 264).”
NOTE 1

Reference should be made to BS 6811-0 General introduction and list of Parts.

A British Standard does not purport to include all the necessary provisions of a
contract. Users of British Standards are responsible for their correct application.
Compliance with a British Standard does not of itself confer immunity
from legal obligations.

Summary of pages
This document comprises a front cover, an inside front cover, pages i and ii,
the EN title page, pages 2 to 6, an inside back cover and a back cover.
This standard has been updated (see copyright date) and may have had
amendments incorporated. This will be indicated in the amendment table on the
inside front cover.
ii

© BSI 03-2000


EUROPEAN STANDARD

EN 60317-7


NORME EUROPÉENNE

November 1994

EUROPÄISCHE NORM

March 1997

+ A1
+ A2

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January 1998
UDC 621.315.337.4-034.3:621.3.045

Supersedes HD 555.7 S2:1992

ICS 29.060.10

Descriptors: Electric conductor, electric wire, winding, enamelled wire, copper, polyimide, dimension, insulated wire, specification

English version

Specifications for particular types of winding wires
Part 7: Polyimide enamelled round copper wire, class 220
(includes amendments A1:1997 and A2:1998)
(IEC 60317-7:1990 + A1:1997 + A2:1997)

Spécifications pour types particuliers de fils

de bobinage
Partie 7: Fil de section circulaire en cuivre
émaillé avec polyimide, classe 220
(inclut les amendements A1:1997 et A2:1998)
(CEI 60317-7:1990 + A1:1997 + A2:1997)

Technische Lieferbedingungen für bestimmte
Typen von Wickeldrähten
Teil 7: Runddrähte aus Kupfer, lackisoliert mit
Polyimid, Klasse 220
(enthält Änderungen A1:1997 und A2:1998)
(IEC 60317-7:1990 + A1:1997 + A2:1997)

This European Standard was approved by CENELEC on 1994-09-01.
CENELEC members are bound to comply with the CEN/CENELEC Internal
Regulations which stipulate the conditions for giving this European Standard
the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the Central Secretariat or to any
CENELEC member.
This European Standard exists in three official versions (English, French,
German). A version in any other language made by translation under the
responsibility of a CENELEC member into its own language and notified to the
Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria,
Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,
Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland
and United Kingdom.

CENELEC

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B-1050 Brussels
© 1994 Copyright reserved to CENELEC members

Ref. No. EN 60317-7:1994 + A1:1997 + A2:1998 E


EN 60317-7:1994

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Foreword
At the request of the 78th Technical Board of
CENELEC, HD 555.7 S2:1992 (IEC 317-7:1990)
was submitted to the CENELEC voting procedure
for conversion into a European Standard.
The text of the International Standard was
approved by CENELEC as EN 60317-7
on 1 September 1994.
The following dates were fixed:
— latest date of publication of
an identical national
standard
(dop) 1995-10-15
— latest date of withdrawal
of conflicting national
standards
(dow) —

Annexes designated “normative” are part of the
body of the standard. In this standard, Annex ZA is
normative.

Foreword to amendment A1
The text of document 55/533/FDIS, future
amendment 1 to IEC 60317-7:1990, prepared by
IEC TC 55, Winding wires, was submitted to the
IEC-CENELEC parallel vote and was approved by
CENELEC as amendment A1 to EN 60317-7:1994
on 1997-03-11.
The following dates were fixed:
— latest date by which the
amendment has to be
implemented at national
level by publication of an
identical national standard
or by endorsement
(dop) 1997-12-01
— latest date by which the
national standards
conflicting with the
amendment have to be
withdrawn
(dow) 1997-12-01

Foreword to amendment A2
The text of document 55/560/FDIS, future
amendment 2 to IEC 60317-7:1990, prepared by
IEC TC 55, Winding wires, was submitted to the

IEC-CENELEC parallel vote and was approved by
CENELEC as amendment A2 to EN 60317-7:1994
on 1997-10-01.

2

The following dates were fixed:
— latest date by which the
amendment has to be
implemented at national
level by publication of an
identical national standard
or by endorsement
(dop) 1998-10-01
— latest date by which the
national standards
conflicting with the
amendment have to be
withdrawn
(dow) 1998-10-01

Contents
Page
Foreword
2
1 Scope
3
2 Normative references
3
3 Definitions and general notes on

methods of test
3
4 Dimensions
3
5 Electrical resistance
3
6 Elongation
3
7 Springiness
3
8 Flexibility and adherence
3
9 Heat shock
3
10 Cut-through
3
11 Resistance to abrasion
3
12 Resistance to solvents
3
13 Breakdown voltage
3
14 Continuity of insulation
3
15 Temperature index
3
16 Resistance to refrigerants
3
17 Solderability
3

18 Heat or solvent bonding
3
19 Dielectric dissipation factor
4
20 Resistance to transformer oil
4
21 Loss of mass
4
22 Clause deleted
4
30 Packaging
4
Annex ZA (normative) Other international
publications quoted in this standard with the
references of relevant European publications
5
Table 1 — Resistance to abrasion requirements 4

© BSI 03-2000


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EN 60317-7:1994

1 Scope

6 Elongation

This International Standard specifies the

requirements of enamelled round copper winding
wire of class 220 with a sole coating based on
polyimide resin.
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 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 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 317-0-1.

See clause 6 of IEC 317-0-1.

2 Normative references

The wire shall meet the requirements given
in Table 1.

The following standard contains provisions which,
through 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.
IEC 317-0-1:1990, Specifications for particular
types of winding wires — Part 0: General
requirements — Section 1: Enamelled round copper
wire.

7 Springiness
See clause 7 of IEC 317-0-1.

8 Flexibility and adherence
See clause 8 of IEC 317-0-1, where the constant K
used for the calculation of the number of revolutions
for the peel test shall be 90 mm.

9 Heat shock
See clause 9 of IEC 317-0-1, where the minimum
heat shock temperature shall be 240 °C.

10 Cut-through
No failure shall occur within 2 min at 400 °C.

11 Resistance to abrasion (nominal
conductor diameters from 0,250 mm up to
and including 2,500 mm)


12 Resistance to solvents
See clause 12 of IEC 317-0-1, however, the change
shall not exceed one grade of pencil hardness.

13 Breakdown voltage
See clause 13 of IEC 317-0-1, where the elevated
temperature shall be 220 °C.

14 Continuity of insulation
See clause 14 of IEC 317-0-1.

15 Temperature index

3 Definitions and general notes on
methods of test

See clause 15 of IEC 317-0-1, where the minimum
temperature index shall be 220.

For definitions and general notes on methods of test
see clause 3 of IEC 317-0-1.
In case of inconsistencies between IEC 317-0-1 and
this standard, IEC 317-7 shall prevail.

16 Resistance to refrigerants

4 Dimensions

The percentage of extractable matter shall not

exceed 0.5 %. The requirement for breakdown
voltage shall be 75 % of the minimum specified
value.

See clause 4 of IEC 317-0-1.

17 Solderability

5 Electrical resistance

Test inappropriate.

See clause 5 of IEC 317-0-1.

18 Heat or solvent bonding
Test inappropriate.

© BSI 03-2000

3


EN 60317-7:1994

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Table 1 — Resistance to abrasion requirements
Nominal
conductor
diameter


Grade 1

Grade 2

Minimum
average force
to failure

Minimum force
to failure of each
measurement

Minimum
average force
to failure

Minimum force
to failure of each
measurement

N

N

N

N

mm


0,250
0,280
0,315
0,355
0,400

2,00
2,15
2,30
2,50
2,70

1,70
1,85
2,00
2,15
2,30

3,35
3,60
3,90
4,20
4,50

2,85
3,05
3,30
3,55
3,80


0,450
0,500
0,560
0,630
0,710

2,90
3,10
3,35
3,60
3,90

2,45
2,65
2,85
3,05
3,30

4,80
5,15
5,50
5,90
6,35

4,05
4,35
4,65
5,00
5,40


0,800
0,900
1,000
1,120
1,250

4,20
4,50
4,90
5,30
5,70

3,60
3,90
4,20
4,50
4,80

6,80
7,30
7,80
8,35
8,95

5,80
6,20
6,60
7,10
7,60


1,400
1,600
1,800
2,000
2,240

6,15
6,65
7,15
7,70
—

5,20
5,60
6,05
6,55
—

9,60
10,3
11,0
11,8
12,6

8,15
8,75
9,35
10,0
10,7


2,500

—

—

13,4

11,4

NOTE For intermediate nominal conductor diameters, the value of the next largest
nominal conductor diameter shall be taken.

19 Dielectric dissipation factor

21 Loss of mass

The dielectric dissipation factor tan $ shall not
exceed 60 × 10–4 at a frequency of 1 000 Hz.

Test inappropriate, but requirements shall be
agreed between purchaser and supplier.

NOTE 1 Test under consideration.
NOTE 2 In case the dielectric dissipation factor tan $ cannot
be measured, this measurement shall be replaced by a
measurement of the loss of mass.

20 Resistance to transformer oil


22 Clause deleted
30 Packaging
See clause 30 of IEC 317-0-1.

Test appropriate but no requirements specified.

4

© BSI 03-2000


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EN 60317-7:1994

Annex ZA (normative)
Other international publications quoted in this standard with the references
of the relevant European publications
This European Standard incorporates by dated or undated reference, provisions from other publications.
These normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply
to this European Standard only when incorporated in it by amendment or revision. For undated references
the latest edition of the publication referred to applies.
NOTE When the international publication has been modified by CENELEC common modifications, indicated by (mod), the
relevant EN/HD applies.
IEC publication

Date


Title

EN/HD

Date

60317-0-1

1990

Specifications for particular types of winding
wires — Part 0: General requirements —
Section 1: Enamelled round copper wire
(corrigendum March 1991)

EN 60317-0-1

1994

© BSI 03-2000

5


6

blank

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BS EN 60317-7:1995

National annex NA (informative)
Cross-references
Publication referred to

Corresponding British Standard

IEC 317-0-1:1990

BS 6811 Winding wires
Part 3 Specification for particular types of enamelled round copper winding
wires
Section 3.0:1993 General requirements

© BSI 03-2000


BS EN
60317-7:1995
IEC 60317-7:
1990

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