SIST EN IEC 60317-27-3:2020/oprA2:2026

• Status: Not Published
• Public Enquiry End Date: 26-Nov-2026
• ICS: 29.060.10 - Wires
• ICS: 77.150.30 - Copper products
• Technical Committee: I09 - Imaginarni 09
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 08-Sep-2026
• Due Date: 26-Jan-2027
• Ref Project: EN IEC 60317-27-3:2019/prA2:2026 - Amendment 2 - Specifications for particular types of winding wires - Part 27-3: Paper tape covered rectangular copper wire

• Amends: SIST EN IEC 60317-27-3:2020 - Specifications for particular types of winding wires - Part 27-3: Paper tape covered rectangular copper wire (IEC 60317-27-3:2019)
• Effective Date: 16-Jun-2026

Overview

SIST EN IEC 60317-27-3:2020/oprA2:2026 is Amendment 2 to the standard focusing on specifications for particular types of winding wires, specifically paper tape covered rectangular copper wire. Published by the Slovenian Institute for Standardization (SIST), this amendment forms part of ongoing efforts to ensure consistency, safety, and quality in the electrical and electronics industries. The amendment relates directly to rectilinear copper wires insulated with paper tape, widely used in winding applications such as transformers and electrical machines.

Key Topics

This amendment introduces and clarifies important aspects related to the handling and specification of paper-insulated rectangular copper wire:

• Packaging and Labeling Requirements: Each packaging unit must be clearly labeled with key information, including the manufacturer’s name and/or trademark, the wire and paper type, IEC specification number, net mass, nominal conductor diameter, paper layer count, and manufacturing date.
• Testing Clarification: The amendment states that testing for "resistance to hydrolysis and to transformer oil" is inappropriate for this wire type, streamlining quality assurance procedures.
• International Alignment: Drafted by IEC Technical Committee 55 (Winding Wires), the amendment maintains compatibility across national and European standards, supporting parallel voting within CENELEC.

Applications

Paper tape covered rectangular copper wires are essential in high-performance electrical applications where:

• Superior insulation is needed for winding wires in transformers, reactors, and large electrical machinery.
• The rectangular profile allows torsion stability and space-efficient coil packing.
• Paper insulation is preferred due to its dielectric properties and suitability for oil-filled transformers.

Typical sectors benefiting from compliance with this standard include:

• Power transmission and distribution: Ensuring safe, reliable transformer construction and operation.
• Electrical machinery manufacturing: Supporting consistency and high-quality winding wire production.
• OEMs and suppliers: Offering verified technical credentials for global market access.

Meeting the requirements outlined in SIST EN IEC 60317-27-3:2020/oprA2:2026 helps manufacturers, suppliers, and end-users to:

• Achieve regulatory and buyer confidence through recognized packaging and labeling protocols.
• Avoid redundant or inappropriate testing, reducing time and costs.
• Integrate with established supply chains that rely on IEC-compatible documentation.

Related Standards

For a comprehensive approach to winding wires and copper product standards, refer to:

• EN IEC 60317-27-3:2019: The main standard for paper tape covered rectangular copper wire.
• IEC 60317 Series: Specifications for various winding wire types, covering enamelled, tape-covered, and other insulated copper wires.
• ISO/IEC Directives: Guidance for drafting and applying international standards.
• Copper products standards (ICS 77.150.30): Related specifications for copper and copper alloy products.
• Wires standards (ICS 29.060.10): Covering a range of wire products used in electrical engineering.

By adhering to standards like SIST EN IEC 60317-27-3:2020/oprA2:2026, stakeholders ensure that winding wire products meet international quality, safety, and documentation benchmarks-facilitating interoperability and trust within the global electrical and electronics industries.

SLOVENSKI STANDARD
01-november-2026
Specifikacije za posebne vrste navijalnih žic - 27-3. del: S papirnim trakom ovita
pravokotna bakrena žica - Dopolnilo A2
Amendment 2 - Specifications for particular types of winding wires - Part 27-3: Paper
tape covered rectangular copper wire
Technische Lieferbedingungen für bestimmte Typen von Wickeldrähten - Teil 27-3:
Flachdrähte aus Kupfer, papierisoliert
Spécifications pour types particuliers de fils de bobinage - Partie 27-3: Fil de section
rectangulaire en cuivre recouvert de ruban papier
Ta slovenski standard je istoveten z: EN IEC 60317-27-3:2019/prA2:2026
ICS:
29.060.10 Žice Wires
77.150.30 Bakreni izdelki Copper products
SIST EN IEC 60317-27- en
3:2020/oprA2:2026
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

55/2107/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60317-27-3/AMD2 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2026-09-04 2026-11-27
SUPERSEDES DOCUMENTS:
55/2093/RR
IEC TC 55 : WINDING WIRES
SECRETARIAT: SECRETARY:
United States of America Mr Mike Leibowitz
OF INTEREST TO THE FOLLOWING COMMITTEES: HORIZONTAL FUNCTION(S):
TC 14,TC 15
ASPECTS CONCERNED:
Electricity transmission and distribution,Safety
SUBMITTED FOR CENELEC PARALLEL VOTING NOT SUBMITTED FOR CENELEC PARALLEL VOTING
Attention IEC-CENELEC parallel voting
The attention of IEC National Committees, members of
CENELEC, is drawn to the fact that this Committee Draft for
Vote (CDV) is submitted for parallel voting.
The CENELEC members are invited to vote through the
CENELEC online voting system.
This document is still under study and subject to change. It should not be used for reference purposes.
Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they
are aware and to provide supporting documentation.
Recipients of this document are invited to submit, with their comments, notification of any relevant “In Some Countries”
clauses to be included should this proposal proceed. Recipients are reminded that the CDV stage is the final stage for
submitting ISC clauses. (SEE AC/22/2007 OR NEW GUIDANCE DOC).

TITLE:
Amendment 2 - Specifications for particular types of winding wires - Part 27-3: Paper tape
covered rectangular copper wire

PROPOSED STABILITY DATE: 2029
NOTE FROM TC/SC OFFICERS:
to make a copy and to print out the content for the sole purpose of preparing National Committee positions. You may not copy or "mirror"
the file or printed version of the document, or any part of it, for any other purpose without permission in writing from IEC.

IEC CDV 60317-27-3/AMD2 © IEC 2026
1 INTERNATIONAL ELECTROTECHNICAL COMMISSION
2 ____________
4 Specifications for particular types of winding wires -
5 Part 27-3: Paper tape covered rectangular copper wire
7 AMENDMENT 2
9 FOREWORD
10 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
11 all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international
12 co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and
13 in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,
14 Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their
15 preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
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17 with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for
18 Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.
19 2) The formal decisions or agreements of IEC on te
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