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

• Status: Not Published
• Publication Date: 08-Feb-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

EN IEC 60317-27-1:2020/prA2:2026 is Amendment 2 to IEC 60317-27-1:2020 for paper tape covered round copper wire. It is an IEC amendment prepared by IEC technical committee 55, Winding wires, and circulated for IEC-CENELEC parallel voting. The practical effect is a change to clause 20, where the hydrolysis and transformer-oil test is marked as inappropriate for this product.

What does EN IEC 60317-27-1:2020/prA2:2026 specify?

EN IEC 60317-27-1:2020/prA2:2026 specifies a targeted amendment to the paper tape covered round copper wire specification. In practice, it updates the base standard rather than replacing it, so users need the amendment together with IEC 60317-27-1:2020 to read the current text.

The amendment text is very short. Its technical content is concentrated in clause 20, titled Resistance to hydrolysis and to transformer oil, which is replaced by the statement Test inappropriate. That matters because it tells users not to apply that test to this particular winding wire.

The document is organized as an IEC amendment with a foreword and the amendment instruction. The foreword explains publication rules, patent-right notices, and the planned stability date process.

What are the key requirements of EN IEC 60317-27-1:2020/prA2:2026?

The main technical effect of EN IEC 60317-27-1:2020/prA2:2026 is that clause 20 is replaced, so the hydrolysis and transformer-oil test is not used for this wire. For manufacturers and test laboratories, that means avoiding a test that the amendment says is not appropriate for the product.

Clause 20 is replaced

Clause 20, Resistance to hydrolysis and to transformer oil, is replaced by a statement that the test is inappropriate. In practice, this changes the test plan for paper tape covered round copper wire and prevents users from applying a test that no longer belongs in the specification.

The amendment is tied to the base standard

EN IEC 60317-27-1:2020/prA2:2026 applies to IEC 60317-27-1:2020. That means quality teams and buyers should read the amendment together with the base standard when checking product requirements or writing purchase specifications.

The document is still in the IEC voting process

The foreword says the document is a Committee Draft for Vote (CDV) and is still under study and subject to change. In practice, that means it should be treated as a draft text rather than a final published requirement.

IEC-CENELEC parallel voting applies

The amendment is submitted for IEC-CENELEC parallel voting. For users in Europe, that matters because IEC and CENELEC members are voting in parallel, so the text is intended to align international and European adoption work.

Patent-right comments are invited

The foreword asks recipients to notify relevant patent rights if they are aware of them. For implementers, that is a reminder to check whether any protected technology could affect production or conformity work.

The stability date is identified

The document gives a proposed stability date of 2029. In practice, that is the point at which the committee plans to reconfirm, withdraw, or revise the document, which helps users plan review cycles.

What terms does EN IEC 60317-27-1:2020/prA2:2026 define?

International Electrotechnical Commission (IEC) is the international standards organization responsible for the publication and maintenance of this amendment.

Committee Draft for Vote (CDV) is a draft stage in which national committees vote on the text before it is finalized.

IEC-CENELEC parallel voting means IEC and CENELEC members vote at the same time on the same draft.

Technical committee 55 (TC 55), Winding wires is the IEC committee that prepared this amendment.

In Some Countries (ISC) clauses are country-specific clauses that may be added during the voting stage if needed.

Stability date is the planned date when the committee will decide whether to reconfirm, withdraw, or revise the document.

Who uses EN IEC 60317-27-1:2020/prA2:2026?

EN IEC 60317-27-1:2020/prA2:2026 is used by organizations working with winding wires in electrotechnical products. That includes manufacturers of paper tape covered round copper wire, test laboratories, quality managers, and buyers who write or check product specifications.

It is also relevant to committees and industries interested in electricity transmission and distribution and safety, as noted in the document metadata. In practice, that points to users who need to know which tests apply to winding wire products and which do not.

What changed in EN IEC 60317-27-1:2020/prA2:2026 from the previous edition?

EN IEC 60317-27-1:2020/prA2:2026 is Amendment 2 to IEC 60317-27-1:2020. The change stated in the amendment is the replacement of clause 20, Resistance to hydrolysis and to transformer oil, with Test inappropriate.

Which standards are used with EN IEC 60317-27-1:2020/prA2:2026?

EN IEC 60317-27-1:2020/prA2:2026 is read with IEC 60317-27-1:2020, the base part for paper tape covered round copper wire. The foreword also says the amendment was drafted in accordance with ISO/IEC Directives, Part 1 and Part 2, plus the IEC Supplement; these documents set drafting rules rather than product requirements.

What does the EN IEC 60317-27-1:2020/prA2:2026 document contain?

EN IEC 60317-27-1:2020/prA2:2026 contains the IEC foreword, the amendment identification, and a single technical change in clause 20. The foreword covers IEC publication principles, the role of normative references, patent-right notices, and the stability-date process.

It also records the committee work behind the draft, including the technical committee responsible, the voting stage, and the parallel voting arrangement. The amendment text itself is concise and focuses on one clause affecting testing of the winding wire.

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
...