EN IEC 60317-27-1:2020/prA2:2026

• Status: Not Published
• Publication Date: 23-Mar-2028
• ICS: 29.060.10 - Wires
• Technical Committee: CLC/TC 55 - Winding wires
• Current Stage: 4020 - Enquiry circulated - Enquiry
• Start Date: 04-Sep-2026
• Due Date: 19-Jun-2026
• Completion Date: 04-Sep-2026
• Ref Project: SIST EN IEC 60317-27-1:2020/oprA2:2026 - Amendment 2 - Specifications for particular types of winding wires - Part 27-1: Paper tape covered round copper wire

• Amends: EN IEC 60317-27-1:2020 - Specifications for particular types of winding wires - Part 27-1: Paper tape covered round copper wire
• Effective Date: 16-Jun-2026

Overview

EN IEC 60317-27-1:2020/prA2:2026 is the second amendment to the international standard specifying the requirements for paper tape covered round copper wire, a particular type of winding wire used in electrical and electronic equipment. Developed by the International Electrotechnical Commission (IEC) and adopted by CENELEC (CLC), this amendment updates and clarifies aspects related to the use and specification of paper-insulated copper wires for winding applications. The document is designed for manufacturers, engineers, and stakeholders involved in electricity transmission, distribution equipment, and safety-critical electrical systems.

Key Topics

• Specification Updates: The amendment introduces refinements to existing product requirements, ensuring continued alignment with international best practices for winding wire quality and safety.
• Paper Tape Insulation: Focuses on the use of paper tape as a traditional insulation material for round copper wire, highlighting its role in electrical insulation and thermal endurance.
• Committee Collaboration: Developed under IEC Technical Committee 55 (Winding Wires), with attention to horizontal functions across relevant sectors including TC 14 and TC 15.
• Testing Requirements: Amendment 2 clarifies specific test expectations. For example, Clause 20 is updated to indicate that resistance to hydrolysis and transformer oil is not required for paper tape covered wire under this standard.
• Document Stability: The update reinforces the status of the standard until 2029, ensuring industry alignment and support for conformity assessment.

Applications

Paper tape covered round copper wire plays a vital role in numerous industrial and electrical applications, particularly where traditional insulation and stable performance in moderate thermal environments are required. Common uses include:

• Power Transformers: Utilized for winding coils due to its reliable insulation and mechanical properties.
• Electrical Motors: Applied in motor windings where paper-insulation assists in maintaining coil integrity.
• Chokes and Reactors: Used in devices where specific dielectric properties are needed and oil immersion is not required.
• Switchgear: Employed in assemblies and panel wiring, particularly where regulatory compliance and standardization are critical.

This standard and its amendment support manufacturers in producing high-quality, safe, and compliant winding wires, crucial for the performance and safety of electrical apparatus everywhere.

Related Standards

For comprehensive conformity and up-to-date practices in winding wire manufacture and use, refer to these related international standards:

• EN IEC 60317-0-1 – General requirements for winding wires
• EN IEC 60317-27-1 – Specifications for paper tape covered round copper wire (main document)
• EN IEC 60317 Series – Broader specifications for various types and constructions of winding wires, including enamelled and other insulated wires
• EN 60216 – Electrical insulating materials – Thermal endurance properties

Practical Value

By following EN IEC 60317-27-1:2020/prA2:2026, organizations ensure their copper winding wires meet international benchmarks for safety and performance. The amendment helps streamline manufacturing, supports regulatory compliance, and maintains market access throughout Europe and internationally. Consistent wire specification and clear insulation requirements address both operational efficiency in production and end-user safety in use, cementing the role of this standard in the global supply chain for electrical equipment.

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
permission in writing from IEC.

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
...