EN 60317-21:2014/A1:2019

Specifications for particular types of winding wires - Part 21: Solderable polyurethane enamelled round copper wire overcoated with polyamide, class 155

Technische Lieferbedingungen für bestimmte Typen von Wickeldrähten - Teil 21: Runddrähte aus Kupfer, verzinnbar, lackisoliert mit Polyurethan und darüber mit Polyamid, Klasse 155

Spécifications pour types particuliers de fils de bobinage - Partie 21: Fil brasable de section circulaire en cuivre émaillé avec polyuréthane et avec surcouche polyamide, classe 155

Specifikacije za posebne vrste navijalnih žic - 21. del: S poliuretanom emajlirana okrogla bakrena žica, prevlečena s poliamidom, za spajkanje, razred 155 - Dopolnilo A1

General Information

• Status: Published
• Publication Date: 19-Sep-2019
• Withdrawal Date: 16-Jul-2022
• ICS: 29.060.10 - Wires
• Technical Committee: CLC/TC 55 - Winding wires
• Drafting Committee: IEC/TC 55 - IEC_TC_55
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 20-Sep-2019
• Completion Date: 20-Sep-2019
• Ref Project: SIST EN 60317-21:2014/A1:2019 - Specifications for particular types of winding wires - Part 21: Solderable polyurethane enamelled round copper wire overcoated with polyamide, class 155

Relations

• Amends: EN 60317-21:2014 - Specifications for particular types of winding wires - Part 21: Solderable polyurethane enamelled round copper wire overcoated with polyamide, class 155
• Effective Date: 26-Jan-2023

Overview

EN 60317-21:2014/A1:2019 is a European standard issued by CLC that specifies the technical requirements for a particular type of winding wire: solderable polyurethane enamelled round copper wire overcoated with polyamide, classified as class 155. This standard represents an amendment (A1) to the original EN 60317-21:2014 and aligns with the international IEC 60317-21:2013/A1:2019 standard, ensuring harmonized requirements across Europe and beyond.

The key focus of this standard is to define detailed characteristics, solderability criteria, and quality expectations for copper winding wires used extensively in electrical engineering applications, particularly where enhanced thermal performance and solderability are required.

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Key Topics

• Material Composition
  The wire core is made of high-quality copper, enamelled with a polyurethane insulation layer and overcoated with polyamide, which provides excellent mechanical protection and heat resistance.

• Thermal Classification
  The wire is designated as class 155, meaning it is suitable for continuous operation at temperatures up to 155°C, making it ideal for high-temperature electrical devices.

• Solderability Requirements
  The standard specifies precise solder bath temperature controls (390 ± 5 °C) and immersion times for wires depending on their diameters:

  • For wires up to 0.100 mm diameter, immersion time should not exceed 2 seconds.
  • For wires above 0.100 mm diameter, immersion time is calculated based on diameter with specified multipliers (8s/mm for Grade 1 and 12s/mm for Grade 2).

• Quality and Inspection
  Requirements include ensuring the tinned wire surface is smooth, free from holes, and free from enamel residues after soldering, which guarantees reliable electrical connections and mechanical integrity.

• Standard Harmonization
  EN 60317-21:2014/A1:2019 is an internationally recognized standard from the IEC, adapted by CENELEC for the European region, ensuring consistency across member countries.

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Applications

The solderable polyurethane enamelled round copper wires overcoated with polyamide, class 155, defined in EN 60317-21:2014/A1:2019, are essential in:

• Electromechanical Components
  Used in transformers, inductors, motors, and coils where reliable winding and excellent thermal endurance are critical.

• Automotive Electrical Systems
  Employed in components exposed to elevated temperatures, requiring durable insulation and effective solderability for secure electrical connections.

• Power Electronics and Electrical Appliances
  Suitable for winding elements in high-performance transformers and devices operating under continuous thermal stress.

• Aerospace and Industrial Equipment
  Used in specialized applications demanding wires with superior thermal class and solderable surfaces to withstand harsh environments.

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Related Standards

• IEC 60317 Series - A comprehensive set of international standards covering specifications for various types of winding wires and enamelled conductors.

• EN 60317-1 - General requirements for winding wires, providing foundational quality and performance criteria complementary to Part 21.

• ISO/IEC 60400 - Standard for wire type testing methods, which complements performance verification of enamelled wires.

• CLC/TS 60317 - Technical specifications that provide additional guidance on specific wire types used in electrotechnical applications.

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Keywords: EN 60317-21, Class 155 winding wire, solderable polyurethane enamelled copper wire, polyamide overcoat, electrical winding wire, solderability standard, CLC winding wire specification, thermal class 155 wire, enamelled copper wire standard.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2019
Specifikacije za posebne vrste navijalnih žic - 21. del: S poliuretanom emajlirana
okrogla bakrena žica, prevlečena s poliamidom, za spajkanje, razred 155 -
Dopolnilo A1
Specifications for particular types of winding wires - Part 21: Solderable polyurethane
enamelled round copper wire overcoated with polyamide, class 155
Technische Lieferbedingungen für bestimmte Typen von Wickeldrähten - Teil 21:
Runddrähte aus Kupfer, verzinnbar, lackisoliert mit Polyurethan und darüber mit
Polyamid, Klasse 155
Spécifications pour types particuliers de fils de bobinage - Partie 21: Fil brasable de
section circulaire en cuivre émaillé avec polyuréthane et avec surcouche polyamide,
classe 155
Ta slovenski standard je istoveten z: EN 60317-21:2014/A1:2019
ICS:
29.060.10 Žice Wires
77.150.30 Bakreni izdelki Copper products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 60317-21:2014/A1

NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2019
ICS 29.060.10
English Version
Specifications for particular types of winding wires - Part 21:
Solderable polyurethane enamelled round copper wire
overcoated with polyamide, class 155
(IEC 60317-21:2013/A1:2019)
Spécifications pour types particuliers de fils de bobinage - Technische Lieferbedingungen für bestimmte Typen von
Partie 21: Fil brasable de section circulaire en cuivre Wickeldrähten - Teil 21: Runddrähte aus Kupfer,
émaillé avec polyuréthane et avec surcouche polyamide, verzinnbar, lackisoliert mit Polyurethan und darüber mit
classe 155 Polyamid, Klasse 155
(IEC 60317-21:2013/A1:2019) (IEC 60317-21:2013/A1:2019)
This amendment A1 modifies the European Standard EN 60317-21:2014; it was approved by CENELEC on 2019-07-17. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment the
status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the
responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as
the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60317-21:2014/A1:2019 E

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