SIST EN IEC 60317-27-1:2020/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 60317-27-1:2020/prA2:2026 - Amendment 2 - Specifications for particular types of winding wires - Part 27-1: Paper tape covered round copper wire

• Amends: SIST EN IEC 60317-27-1:2020 - Specifications for particular types of winding wires - Part 27-1: Paper tape covered round copper wire (IEC 60317-27-1:2020)
• Effective Date: 01-Nov-2026

Overview

SIST EN IEC 60317-27-1:2020/oprA2:2026 is Amendment 2 to the international standard titled Specifications for particular types of winding wires – Part 27-1: Paper tape covered round copper wire. Developed by SIST (Slovenian Institute for Standardization) in collaboration with IEC Technical Committee 55, this standard specifies requirements for paper tape covered round copper wire used primarily in electrical winding applications. The amendment ensures that technical specifications are up-to-date and aligned with international practices for quality and conformity of winding wires.

This amendment supports global efforts to harmonize standards for copper products and electrical wires, ensuring safety, compatibility, and performance in critical applications such as transformer and electrical machinery manufacturing.

Key Topics

• Scope and Purpose
  • Defines paper tape covered round copper wire as a particular type of winding wire
  • Addresses conformity, safety, and test requirements
• Standardization Process
  • Developed through IEC Technical Committee 55 with input from relevant committees
  • Prepared in accordance with ISO/IEC Directives for international uniformity
• Update Details
  • Amendment 2 reflects the latest technical and industry requirements
  • Replaces specific test clauses that are not applicable (e.g., resistance to hydrolysis and transformer oil testing)
• Voting and Adoption
  • Subject to IEC and CENELEC parallel voting to promote broad acceptance in European and international markets

Applications

Paper tape covered round copper wires covered by this standard are essential in several industrial sectors, particularly where dependable electrical insulation and mechanical performance are required. Key application areas include:

• Transformer Manufacturing
  • Provides high-quality insulation for windings, enhancing electrical efficiency and safety
• Rotating Electrical Machines
  • Used in motors and generators, ensuring long service life and resistance to electrical stress
• Reactors and Chokes
  • Ensures reliability in electrical and electronic circuits under varying operating conditions
• High-Voltage Equipment
  • Suitable for situations demanding robust insulation and thermal performance
• Custom Electrical Winding Projects
  • Adopted in specialty or critical applications where paper-insulated copper wire properties are advantageous

By applying this standard, manufacturers and users benefit from consistency in product quality, improved safety, and compatibility with international procurement and maintenance requirements.

Related Standards

For a comprehensive approach to winding wire quality and performance, the following related international standards are often referenced in conjunction with SIST EN IEC 60317-27-1:2020/oprA2:2026:

• IEC 60317 Series
  • Covers specifications for a wide range of winding wires, including those with enamel, glass, or composite coverings
• EN IEC 60317-27-1:2020
  • Predecessor standard, providing the baseline specifications for paper tape covered round copper wires
• IEC 60050-121
  • Provides standardized vocabulary for electrical materials and components, including wires
• ISO/IEC Directives
  • Underpin the drafting and maintenance of international standards to ensure clarity and uniformity

These standards collectively address materials, testing methods, and quality assurance, supporting manufacturers, quality managers, and regulatory bodies in the electrical component sector.

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Keywords: winding wires standard, paper tape covered copper wire, IEC 60317-27-1, copper winding wire specification, electrical insulation wire, transformer wire standards, SIST standards, electrical wire conformity, amendment 2, IEC Technical Committee 55.

SLOVENSKI STANDARD
01-november-2026
Specifikacije za posebne vrste navijalnih žic - 27-1. del: S papirnim trakom ovita
okrogla bakrena žica - Dopolnilo A2
Amendment 2 - Specifications for particular types of winding wires - Part 27-1: Paper
tape covered round copper wire
Technische Lieferbedingungen für bestimmte Typen von Wickeldrähten - Teil 27-1:
Runddrähte aus Kupfer, papierisoliert
Spécifications pour types particuliers de fils de bobinage - Partie 27-1: Fil de section
circulaire en cuivre recouvert de ruban papier
Ta slovenski standard je istoveten z: EN IEC 60317-27-1:2020/prA2:2026
ICS:
29.060.10 Žice Wires
77.150.30 Bakreni izdelki Copper products
SIST EN IEC 60317-27- en
1:2020/oprA2:2026
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

55/2105/CDV
COMMITTEE DRAFT FOR VOTE (CDV)
PROJECT NUMBER:
IEC 60317-27-1/AMD2 ED1
DATE OF CIRCULATION: CLOSING DATE FOR VOTING:
2026-09-04 2026-11-27
SUPERSEDES DOCUMENTS:
55/2091/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 27-1: Paper tape
covered round copper wire
PROPOSED STABILITY DATE: 2029
NOTE FROM TC/SC OFFICERS:
electronic file, 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
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IEC CDV 60317-27-1/AMD2 © IEC 2026
1 INTERNATIONAL ELECTROTECHNICAL COMMISSION
2 ____________
4 Specifications for particular types of winding wires -
5 Part 27-1: Paper tape covered round 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
16 may participate in this preparatory work. International, governmental and non-governmental organizations liaising
17 with the IEC also participate in this preparation. IEC
...