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BS EN IEC 62641:2022

BS EN IEC 62641:2022

$102.76

Conductors for overhead lines. Aluminium and aluminium alloy wires for concentric lay stranded conductors

Published By Publication Date Number of Pages
BSI 2022 22
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IEC 62641:2022 specifies the mechanical and electrical properties of round and formed wires for equivalent diameters up to the values according to Table 3 for aluminium and aluminium alloys and according to Table 4 for thermal resistant alloys. This document is applicable to aluminium and aluminium alloy wires for the manufacture of concentric lay overhead electrical stranded conductors with or without gap(s) for power transmission purposes. The various materials and their designations are listed in Table 1. For calculation purposes, the values listed in Table 1 are used. This first edition cancels and replaces the second edition of IEC 60104 published in 1987, the first edition of IEC 60121 published in 1960, the first edition of IEC 60889 published in 1987, and the first edition of IEC 62004 published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous editions of IEC 60104, IEC 60121, IEC 60889 and IEC 62004:

  1. designations of aluminium alloys are modified;
  2. aluminium alloys A4, AL4 and AL5 are added;
  3. wire diameter ranges for indicating mechanical properties are modified and extended;
  4. test methods are merged.

PDF Catalog

PDF Pages PDF Title
2 undefined
4 European foreword
Endorsement notice
5 English
CONTENTS
6 FOREWORD
8 INTRODUCTION
9 1 Scope
2 Normative references
3 Terms and definitions
11 4 Material
5 Joints
6 Tests
6.1 General
6.2 Place of testing
12 6.3 Sampling rate
6.4 Test methods
6.4.1 Appearance
6.4.2 Wire diameter
6.4.3 Tensile strength
6.4.4 Elongation
13 6.4.5 Wrapping
6.4.6 Bending
6.4.7 Electrical resistivity
6.4.8 Thermal resistance
14 6.5 Acceptance and rejection
6.6 Certificate of compliance
7 Length and tolerance on length
Tables
Table 1a – Designation and properties for calculation purposesb
15 Table 2 – Tolerance on wire diameter
Table 3 – Minimum mechanical properties for Ax and ALx wires
16 Table 4 – Minimum mechanical properties for ATx wires
Table 5 – Temperature and duration of heating
Table 6 – Parameters for bending test of aluminium alloy wires
17 Annex A (normative)Methods of securing formed wires
Figure A.1 – Methods of securing formed wires
18 Annex B (informative)Thermal-resistant property
B.1 Thermal-resistant properties
B.2 Explanation of the Arrhenius plot
Figure B.1 – Arrhenius plot (residual strength 90 %)
19 B.3 Continuous operation temperature
B.4 Duration and heating temperature
20 Bibliography

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BS EN IEC 62641:2022
$102.76