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IEC 60740-2:1993

Current
Current

The latest, up-to-date edition.

Laminations for transformers and inductors for use in telecommunication and electronic equipment - Part 2: Specification for the minimum permeabilities of laminations made of soft magnetic metallic materials
Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Language(s)

English - French

Published date

18-06-1993

Publisher

International Electrotechnical Committee

FOREWORD
INTRODUCTION
Clause
1 Scope
2 Normative references
3 Terms and definitions
  3.1 Alloy subclass
  3.2 Magnetic grade
4 Extended designation of laminations
5 General physical properties
6 Permeability requirements for the lamination material
7 Permeability requirements for laminations
  7.1 Minimum lamination permeability
  7.2 Inductance factor
  7.3 Permeability rise factor
8 Calculation of lamination permeability
  8.1 General
  8.2 Principle of the calculation
  8.3 Procedure
  8.4 Numerical example
Figures
Annex A - Bibliography

Specifies requirements for the minimum permeabilities of laminations made of silicon-iron and nickel-iron alloys as defined by the alloy classes C2, E1, E3 and E4 of IEC 60404-1.

Committee
TC 51
DevelopmentNote
Stability Date: 2020. (09/2017)
DocumentType
Standard
Pages
38
PublisherName
International Electrotechnical Committee
Status
Current

Standards Relationship
DIN IEC 60740-2:1995-08 Identical

I.S. EN 60740-1:2005 LAMINATIONS FOR TRANSFORMERS AND INDUCTORS - PART 1: MECHANICAL AND ELECTRICAL CHARACTERISTICS
EN 60740-1:2005 Laminations for transformers and inductors - Part 1: Mechanical and electrical characteristics
04/30112654 DC : 0 IEC 60740-1 ED.1 - LAMINATIONS FOR TRANSFORMERS AND INDUCTORS - PART 1: MECHANICAL AND ELECTRICAL CHARACTERISTICS
DIN 17745:2002-09 WROUGHT ALLOYS OF NICKEL AND IRON - CHEMICAL COMPOSITION
IEC 60740-1:2005 Laminations for transformers and inductors - Part 1: Mechanical and electrical characteristics
BS EN 60740-1:2005 Laminations for transformers and inductors Mechanical and electrical characteristics

ISO 3:1973 Preferred numbers Series of preferred numbers
IEC 60404-8-6:2016 Magnetic materials - Part 8-6: Specifications for individual materials - Soft magnetic metallic materials
IEC 60404-1:2016 Magnetic materials - Part 1: Classification

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Hardcopy - English - French
PDF - English - French
PDF 3 Users - English - French
PDF 5 Users - English - French
PDF 9 Users - English - French
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