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BS EN IEC 63248:2022

BS EN IEC 63248:2022

$167.15

Conductors for overhead lines. Coated or cladded metallic wire for concentric lay stranded conductors

Published By Publication Date Number of Pages
BSI 2022 42
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IEC 63248:2022 specifies the properties of wires in the diameter range of, but not limited to, 1,25 mm to 5,50 mm. This document is applicable to coated or cladded metallic wires before stranding used either as concentric lay overhead stranded conductors, or in the manufacture of cores for concentric lay overhead stranded conductors, for power transmission purposes. The various wire types and their designations are listed in Table A.1. For calculation purposes the values listed in Annex B are used. This first edition cancels and replaces the first edition of IEC 61232 published in 1993 and the first edition of IEC 60888 published in 1997. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous editions of IEC 61232 and IEC 60888: a) wire designations have been modified and grouped; b) wires with zinc coating class 2 were removed; c) new wire designations have been added; d) aluminium-clad FeNi36 wires have been added; e) advanced zinc-aluminium alloy coated steel wires have been added.

PDF Catalog

PDF Pages PDF Title
2 undefined
4 European foreword
Endorsement notice
5 English
CONTENTS
7 FOREWORD
9 INTRODUCTION
10 1 Scope
2 Normative references
3 Terms and definitions
12 4 Material
4.1 Steel
4.2 Aluminium
4.3 Zinc
4.4 Zinc-aluminium alloy
4.5 Advanced zinc-aluminium alloy
5 Freedom from defects
13 6 Joints
7 Tests
7.1 General
7.2 Place of testing
7.3 Sampling rate
7.4 Test methods
7.4.1 Visual test
7.4.2 Diameter
14 7.4.3 Stress at 1 % extension, tensile strength and elongation
15 7.4.4 Ductility tests
16 7.4.5 Coating or cladding tests
17 7.4.6 Coefficient of linear expansion
7.4.7 Resistivity
18 7.4.8 Coating adherence heat resistance test
8 Acceptance and rejection
9 Certificate of compliance
10 Packaging
10.1 Type of packaging
10.2 Length and tolerance on length
19 Annex A (normative)Tables of properties for recommended IEC wire materials
Tables
Table A.1 – Wire designation
20 Table A.2 – Schedule of tests
21 Table A.3 – Zinc-aluminium alloy ingot composition (group 4 and group 5)
22 Table A.4 – Requirements for zinc and zinc-aluminium alloy coated steel wires (group 1, group 4 and group 5)
26 Table A.5 – Requirements for aluminium-clad FeNi36 wires (group 2)
27 Table A.6 – Requirements for aluminium-clad steel wires (group 3)
30 Table A.7 – Initial setting for determining stress at 1 % extension
31 Table A.8 – Coating requirements for zinc and zinc-aluminium alloy coated wires
32 Table A.9 – Cladding requirements for group 2 and group 3 wire
Table A.10 – Coating heat resistance test for group 4 and group 5 wire
Table A.11 – Temperatures for linear expansion test for group 2 wire
33 Table A.12 – Minimum number of dips for zinc and zinc alloy coatings(group 1, group 4, group 5)
34 Annex B (informative)Properties of wire for calculation purposes
Table B.1 – Properties of wire for calculation purposes
36 Annex C (informative)Method to measure the equivalent diameter by volume
Figure C.1 – Optical ground wire (OPGW) composedof formed aluminium-clad steel wires
Figure C.2 – Example of density measurement apparatus
38 Annex D (informative)Ratio of aluminium and steel or FeNi36 cross-sectional areas
D.1 Standard ratio in cross-section
D.2 Average aluminium thickness
Table D.1 – Standard aluminium and steel or FeNi36 ratioin the cross section for group 2 and group 3 wires
39 Table D.2 – Average aluminium thickness
40 Bibliography

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BS EN IEC 63248:2022
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