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.<\/p>\n
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| 2<\/td>\n | undefined <\/td>\n<\/tr>\n | ||||||
| 4<\/td>\n | European foreword Endorsement notice <\/td>\n<\/tr>\n | ||||||
| 5<\/td>\n | English CONTENTS <\/td>\n<\/tr>\n | ||||||
| 7<\/td>\n | FOREWORD <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | INTRODUCTION <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | 1 Scope 2 Normative references 3 Terms and definitions <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | 7.4.3 Stress at 1 % extension, tensile strength and elongation <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 7.4.4 Ductility tests <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | 7.4.5 Coating or cladding tests <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | 7.4.6 Coefficient of linear expansion 7.4.7 Resistivity <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | 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 <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | Annex A (normative)Tables of properties for recommended IEC wire materials Tables Table A.1 \u2013 Wire designation <\/td>\n<\/tr>\n | ||||||
| 20<\/td>\n | Table A.2 \u2013 Schedule of tests <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | Table A.3 \u2013 Zinc-aluminium alloy ingot composition (group 4 and group 5) <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | Table A.4 \u2013 Requirements for zinc and zinc-aluminium alloy coated steel wires (group 1, group 4 and group 5) <\/td>\n<\/tr>\n | ||||||
| 26<\/td>\n | Table A.5 \u2013 Requirements for aluminium-clad FeNi36 wires (group 2) <\/td>\n<\/tr>\n | ||||||
| 27<\/td>\n | Table A.6 \u2013 Requirements for aluminium-clad steel wires (group 3) <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | Table A.7 \u2013 Initial setting for determining stress at 1 % extension <\/td>\n<\/tr>\n | ||||||
| 31<\/td>\n | Table A.8 \u2013 Coating requirements for zinc and zinc-aluminium alloy coated wires <\/td>\n<\/tr>\n | ||||||
| 32<\/td>\n | Table A.9 \u2013 Cladding requirements for group 2 and group 3 wire Table A.10 \u2013 Coating heat resistance test for group 4 and group 5 wire Table A.11 \u2013 Temperatures for linear expansion test for group 2 wire <\/td>\n<\/tr>\n | ||||||
| 33<\/td>\n | Table A.12 \u2013 Minimum number of dips for zinc and zinc alloy coatings(group 1, group 4, group 5) <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | Annex B (informative)Properties of wire for calculation purposes Table B.1 \u2013 Properties of wire for calculation purposes <\/td>\n<\/tr>\n | ||||||
| 36<\/td>\n | Annex C (informative)Method to measure the equivalent diameter by volume Figure C.1 \u2013 Optical ground wire (OPGW) composedof formed aluminium-clad steel wires Figure C.2 \u2013 Example of density measurement apparatus <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | 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 \u2013 Standard aluminium and steel or FeNi36 ratioin the cross section for group 2 and group 3 wires <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | Table D.2 \u2013 Average aluminium thickness <\/td>\n<\/tr>\n | ||||||
| 40<\/td>\n | Bibliography <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" Conductors for overhead lines. Coated or cladded metallic wire for concentric lay stranded conductors<\/b><\/p>\n |