IEC 60317-27:2013

Specifications for particular types of winding wires - Part 27: Paper tape covered rectangular copper wire

IEC 60317-27:2013 specifies the requirements of paper tape covered rectangular copper winding wires. This covering consists of two or more layers of paper tape, all in the same direction and is primarily intended for winding coils for oil immersed transformers. The range of nominal conductor dimensions covered by this standard is:
- width: min. 2,0 mm max. 16,0 mm;
- thickness: min. 0,80 mm max. 5,60 mm. The paper tapes covered by this standard are restricted to those specified in IEC 60554-1 having thicknesses in the range 25 μm to 125 μm inclusive. This fourth edition cancels and replaces the third edition published in 1998, Amendment 1:1999. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- new subclause containing general notes on winding wire, formerly a part of the scope;
- revision to references to IEC 60317-0-2:2013 to clarify that their application is normative;
- new 3.3, Appearance;
- modification to 4.4, Increase in dimensions due to paper tape covering;
- deletion of Clause 22, High temperature failure;
- new Clause 23, Pin hole test. Keywords: requirements of paper tape covered rectangular copper winding wires, winding coils for oil immersed transformers
This publication is to be read in conjunction with IEC 60317-0-2:2013.

Spécifications pour types particuliers de fils de bobinage - Partie 27: Fil de section rectangulaire en cuivre recouvert de ruban papier

La CEI 60317-27:2013 spécifie les exigences relatives au fil de bobinage de section rectangulaire en cuivre recouvert de ruban papier. Ce revêtement est constitué de deux ou plusieurs couches de ruban papier, enroulées toutes dans le même sens, et est essentiellement destiné au bobinage pour les transformateurs immergés dans l'huile. La gamme des dimensions nominales des conducteurs couvertes par la présente norme est:
- la largeur: min. 2,0 mm max. 16,0 mm;
- l'épaisseur: min. 0,80 mm max. 5,60 mm. Les rubans papier concernés par cette norme sont limités à ceux qui possèdent une épaisseur de 25 μm à 125 μm compris et qui sont spécifiés dans la CEI 60554-1. Cette quatrième édition annule et remplace la troisième édition parue en 1998, et l'Amendement 1:1999. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- un nouveau paragraphe contenant des notes générales sur le fil de bobinage intégrées auparavant au domaine d'application;
- la révision des références à la CEI 60317-0-2:2013, pour bien établir que leur application est normative;
- un nouveau 3.3, Aspect;
- une révision du 4.4, Accroissement des dimensions dû au revêtement de ruban papier;
- la suppression de l'Article 22 Défaillance à haute température;
- un nouvel Article 23, Détection des microfissures en immersion. Mots clés: exigences relatives au fil de bobinage de section rectangulaire en cuivre recouvert de ruban papier, bobinage pour les transformateurs immergés dans l'huile
Cette publication doit être lue conjointement avec la CEI 60317-0-2:2013.

General Information

• Status: Replaced
• Publication Date: 09-Oct-2013
• ICS: 29.035.01 - Insulating materials in general
• ICS: 29.060.10 - Wires
• ICS: 29.060.20 - Cables
• Technical Committee: TC 55 - Winding wires
• Drafting Committee: WG 1 - TC 55/WG 1
• Current Stage: DELPUB - Deleted Publication
• Start Date: 28-Sep-2018
• Completion Date: 13-Nov-2019

Relations

• Replaced By: IEC 60317-27-3:2019 - Specifications for particular types of winding wires - Part 27-3: Paper tape covered rectangular copper wire
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60317-27


®


Edition 4.0 2013-10



INTERNATIONAL



STANDARD



NORME
INTERNATIONALE


Specifications for particular types of winding wires –
Part 27: Paper tape covered rectangular copper wire

Spécifications pour types particuliers de fils de bobinage –
Partie 27: Fil de section rectangulaire en cuivre recouvert de ruban papier


IEC 60317-27:2013

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IEC 60317-27



®



Edition 4.0 2013-10







INTERNATIONAL





STANDARD







NORME



INTERNATIONALE











Specifications for particular types of winding wires –

Part 27: Paper tape covered rectangular copper wire




Spécifications pour types particuliers de fils de bobinage –

Partie 27: Fil de section rectangulaire en cuivre recouvert de ruban papier

















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE

PRICE CODE
INTERNATIONALE

CODE PRIX M


ICS 29.060.10 ISBN 978-2-8322-1154-0



Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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CONTENTS


FOREWORD . 3

INTRODUCTION . 5


1 Scope . 6

2 Normative references . 6

3 Terms, definitions, general notes and appearance . 6

3.1 Terms and definitions . 6

3.2 General notes . 6

3.2.1 Methods of test . 6
3.2.2 Winding wire . 7
3.3 Appearance . 7
4 Dimensions . 7
4.1 Conductor dimensions . 7
4.2 Tolerance on conductor dimensions . 7
4.3 Rounding of corners . 7
4.4 Increase in dimensions due to paper tape covering . 7
4.5 Maximum overall dimensions . 8
5 Electrical resistance . 8
6 Elongation . 8
7 Springiness . 8
8 Flexibility and adherence . 8
9 Heat shock . 8
10 Cut-through . 8
11 Resistance to abrasion . 9
12 Resistance to solvents . 9
13 Breakdown voltage . 9
14 Continuity of insulation . 9
15 Temperature index . 9
16 Resistance to refrigerants . 9
17 Solderability . 9
18 Heat or solvent bonding . 9
19 Dielectric dissipation factor . 9

20 Resistance to hydrolysis and to transformer oil . 9
21 Loss of mass . 9
23 Pin hole test . 9
30 Packaging . 10
Annex A (informative) Method of determination of x % proof stress: Rpx . 11
Bibliography . 12

Figure A.1 – Load-elongation diagram . 11

Table 1 – Increase in dimensions . 8

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60317-27 © IEC:2013 – 3 –



INTERNATIONAL ELECTROTECHNICAL COMMISSION

____________




SPECIFICATIONS FOR PARTICULAR

TYPES OF WINDING WIRES –



Part 27: Paper tape covered rectangular copper wire



FOREWORD
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International Standard IEC 60317-27 has been prepared by IEC technical committee 55:
Winding wires.
This fourth edition cancels and replaces the third edition published in 1998, Amendment 1:
1999. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
– new subclause containing general notes on winding wire, formerly a part of the scope;
– revision to references to IEC 60317-0-2:2013 to clarify that their application is normative;
– new 3.3, Appearance;
– modification to 4.4, Increase in dimensions due to paper tape covering;
– deletion of Clause 22, High temperature failure;

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– 4 – 60317-27 © IEC:2013


– new Clause 23, Pin hole test.


The text of this standard is based on the following documents:


FDIS Report on voting

55/1414/FDIS 55/1435/RVD




Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.


This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
This International standard is to be read in conjunction with the IEC 60317-0-2:2013.
The numbering of clauses in this standard is not continuous from Clauses 20 and 30 in order
to reserve space for possible future wire requirements prior to those for wire packaging.
A list of all parts in the IEC 60317 series, published under the general title Specifications for
particular types of winding wires, can be found on the IEC website.
The committee has decided that the contents of this publication will remain unchanged until
the stability date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

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60317-27 © IEC:2013 – 5 –


INTRODUCTION


This part of IEC 60317 is one of a series which deals with insulated wires used for windings in

electrical equipment. The series has three groups describing:


1) Winding wires – Test methods (IEC 60851);

2) Specifications for particular types of winding wires (IEC 60317);


3) Packaging of winding wires (IEC 60264).

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SPECIFICATIONS FOR PARTICULAR

TYPES OF WINDING WIRES –



Part 27: Paper tape covered rectangular copper wire








1 Scope


This part of IEC 60317 specifies the requirements of paper tape covered rectangular copper
winding wires. This covering consists of two or more layers of paper tape, all in the same
direction and is primarily intended for winding coils for oil immersed transformers.
The range of nominal conductor dimensions covered by this standard is:
– width:  min. 2,0 mm max. 16,0 mm;
– thickness: min. 0,80 mm max. 5,60 mm.
The paper tapes covered by this standard are restricted to those specified in IEC 60554-1
having thicknesses in the range 25 µm to 125 µm inclusive.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60317-0-2:2013, Specifications for particular types of winding wires – Part 0-2: General
requirements – Enamelled rectangular copper wire
IEC 60554-1, Specification for cellulosic papers for electrical purposes – Part 1: Definitions
and general requirements
3 Terms, definitions, general notes and appearance
3.1 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 60317-0-2 and the
following apply.
3.1.1
covering
material which is wound, wrapped or braided around a bare or insulated conductor
3.2 General notes
3.2.1 Methods of test
Subclause 3.2.1 of IEC 60317-0-2:2013 applies. In case of inconsistency between
IEC 60317-0-2:2013 and this standard, IEC 60317-27 shall prevail.

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60317-27 © IEC:2013 – 7 –


3.2.2 Winding wire


The number of paper tapes, type of paper, paper tape thickness, and the degree of overlap

shall be agreed upon between the purchaser and supplier.


When a reference is made to winding wire according to this standard, the following

information shall be given in the description:

– reference to IEC 60317-27;


– nominal conductor dimensions in millimetres (width × thickness);

– nominal increase in dimensions due to paper.

EXAMPLE: IEC 60317-27 4,00 × 1,00 + 0,20
– proof stress minimum (and maximum) value
EXAMPLES: IEC 60317-27 4,00 × 1,00 + 0,20 IEC 60317-27 7,00 × 2,50 + 1,00 R = 150 MPa
p0,2
3.3 Appearance
The conductor shall be essentially free from copper dust and other extraneous matter when
examined with normal vision, as wound on the original spool or reel. The paper covering shall
be of one or more tapes wrapped firmly, closely, evenly, and continuously around the
conductor.
No bonding or adhesive material shall be used except to anchor the ends of paper tapes.
4 Dimensions
4.1 Conductor dimensions
Subclause 4.1 of IEC 60317-0-2: 2013 applies.
4.2 Tolerance on conductor dimensions
Subclause 4.2 of IEC 60317-0-2: 2013 applies.
4.3 Rounding of corners
Subclause 4.3 of IEC 60317-0-2: 2013 applies.
4.4 Increase in dimensions due to paper tape covering

The increase in width or thickness due to the paper tape covering shall be agreed between
purchaser and supplier and the minus tolerance shall not exceed the values given in Table 1.
The increase in width due to the paper covering shall be equal to or less than the increase in
thickness.
The maximum increase may be exceeded, provided that the maximum overall dimension does
not exceed the sum of the maximum dimensions of the conductor plus the maximum increase
given in Table 1.

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Table 1 – Increase in dimensions


Increase in dimensions due to the paper covering

Tolerance
mm
%

Over Up to and including

−10

– 0,50

0

−7,5

0,50 1,25

0

−5

1,25 –
0


4.5 Maximum overall dimensions
2
The overall dimensions shall be measured under a pressure of (1 ± 0,1) N/mm over the
cross-section of the bare conductor nominal dimension.
The overall dimensions shall not exceed the sum of the maximum bare dimensions given in
4.2 and the maximum increase in dimensions permitted in 4.4.
5 Electrical resistance
Clause 5 of IEC 60317-0-2:2013 applies.
6 Elongation
Clause 6 of IEC 60317-0-2:2013 applies.
NOTE When the value of the proof stress of the copper is specified between minimum and maximum limits, the
requirements are agreed upon between the purchaser and supplier. The description of the term “proof stress” and
the method of determination are given in Annex A.
7 Springiness
Test appropriate but no requirements specified.
8 Flexibility and adherence

Because of the great variation in the number and the thickness of papers applied, the
requirements for flexibility shall be agreed between purchaser and supplier at the time of
placing the order.
9 Heat shock
Test inappropriate.
10 Cut-through
Test inappropriate.

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60317-27 © IEC:2013 – 9 –


11 Resistance to abrasion


Test inappropriate.



12 Resistance to solvents


Test inappropriate.


13 Breakdown voltage

Test inappropriate.
14 Continuity of insulation
Test inappropriate.
15 Temperature index
Test requirements under consideration.
16 Resistance to refrigerants
Test inappropriate.
17 Solderability
Test inappropriate.
18 Heat or solvent bonding
Test inappropriate.
19 Dielectric dissipation factor
Test inappropriate.
20 Resistance to hydrolysis and to transformer oil
Test appropriate but no requirements specified.
21 Loss of mass
Test inappropriate.
23 Pin hole test
Test inappropriate.

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30 Packaging


The kind of packaging may influence certain properties of the wire, for example flexibility and

adherence. Therefore the kind of packaging, for example the type of spool, shall be agreed

between purchaser and supplier.


The wire shall be evenly and compactly wound on spools.


Where wires are delivered in coils, the dimensions and the maximum masses of such coils

shall be agreed between purchaser and supplier. Any additional protection for coils shall also

be agreed between purchaser and supplier.

A clearance of at least 25 mm shall be arranged between the outermost layer and the
periphery of the spool flange. Where there is a requirement for a protective paper between the
layers and between the wire and the spool, this shall be agreed between the purchaser and
the supplier. Marking of the label when there is more than one length, identification of the
separate lengths and identification of joints shall also be by agreement between the purchaser
and supplier.

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60317-27 © IEC:2013 – 11 –


Annex A

(informative)



Method of determination of x % proof stress: Rpx


Proof stress is the stress (load divided by the original area of cross-section of a test piece)

which is just sufficient to produce, under increasing load, a non-proportional elongation equal
to a specified percentage x of the original gauge length.


In specifying or describing a proof stress the percentage should be quoted: the most usual
2
example is 0,2 % proof stress (Rp0,2) expressed in megapascals (1 MPa = 1 N/mm ).
The proof stress is determined from the load-elongation curve by drawing a line parallel to the
straight portion of the curve and distant from it by an amount representing the required non-
proportional elongation, thus determining the load at which the line cuts the curve (see
Figure A.1).


Non-proportional elongation
Load
P
Specified percentage of
original gauge length: x %
P
Proof stress =    where A is the original cross-sctional area of test piece
A

Elongation

IEC  2559/13

Figure A.1 – Load-elongation diagram

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Bibliography


IEC 60264 (all parts), Packaging of winding wires


IEC 60317 (all parts), Specifications for particular types of winding wires


IEC 60851 (all parts), Winding wires – Test methods


ISO 6892-1:2009, Metallic materials – Tensile testing – Part 1: Method of test at room

temperature

___________

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SOMMAIRE


AVANT-PROPOS . 15

INTRODUCTION . 17


1 Domaine d'application . 18

2 Références normatives . 18

3 Termes, définitions, notes générales et aspect . 18

3.1 Termes et définitions . 18

3.2 Notes générales . 18

3.2.1 Méthodes d'essai . 18
3.2.2 Fil de bobinage . 19
3.3 Aspect . 19
4 Dimensions . 19
4.1 Dimensions du conducteur . 19
4.2 Tolérance sur les dimensions du conducteur . 19
4.3 Arrondi des angles . 19
4.4 Accroissement des dimensions dû au revêtement de ruban papier . 19
4.5 Dimensions extérieures maximales . 20
5 Résistance électrique . 20
6 Allongement . 20
7 Effet de ressort . 20
8 Souplesse et adhérence . 20
9 Choc thermique . 20
10 Thermoplasticité . 20
11 Résistance à l'abrasion . 21
12 Résistance aux solvants . 21
13 Tension de claquage . 21
14 Continuité de l'isolant . 21
15 Indice de température . 21
16 Résistance aux réfrigérants . 21
17 Brasabilité . 21
18 Adhérence par chaleur ou par solvant . 21
19 Facteur de dissipation diélectrique . 21

20 Résistance à l'hydrolyse et à l'huile de transformateur . 21
21 Perte de masse . 21
23 Détection des microfissures en immersion . 21
30 Conditionnement . 22
Annexe A (informative) Méthode de mesure
...