I.S. EN 62420:2008
Current
The latest, up-to-date edition.
CONCENTRIC LAY STRANDED OVERHEAD ELECTRICAL CONDUCTORS CONTAINING ONE OR MORE GAP(S)
Hardcopy , PDF
English
01-01-2008
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
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FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Designation system
5 Requirements for stranded conductors
5.1 Material
5.2 Conductor sizes
5.3 Surface
5.4 Stranding
5.4.1 General
5.4.2 Lay ratio for core wires
5.4.3 Lay ratio for aluminium layer(s)
5.4.4 Joints
5.4.5 Linear mass
5.4.6 Conductor strength
6 Tests
6.1 Classification of tests
6.2 Type Tests
6.2.1 Length of sample required
6.2.2 Joints in aluminium wires
6.2.3 Annular gap(s)
6.2.4 Stress-strain curves
6.2.5 Breaking strength of conductor
6.2.6 Creep curves
6.3 Sample tests
6.3.1 Cross-sectional area
6.3.2 Overall diameter
6.3.3 Linear mass
6.3.4 Surface condition
6.3.5 Lay ratio and direction of lay
6.3.6 Breaking strength of wires after stranding (if requested)
6.3.7 Wire canting on the outside layer (if requested)
7 Inspection
7.1 Test location
7.2 Acceptance or rejection
8 Packaging and marking
8.1 Packaging
8.2 Marking and tare
8.3 Random lengths
Annex A (normative) - Information to be supplied by purchaser
Annex B (normative) - Stress-strain test method
Annex C (normative) - Nominal mass of grease for stranded conductors
Annex D (informative) - Alternate method of measuring the gap(s) within
the conductor
Annex E (informative) - Recommended conductor sizes and tables of
conductor properties
Annex ZA (normative) - Normative references to international
publications with their corresponding European
publications
Describes the electrical and mechanical characteristics of concentric lay stranded overhead electrical conductors, containing one or more self-supporting aluminium or aluminium alloy layer(s).
| DevelopmentNote |
For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
|
| DocumentType |
Standard
|
| Pages |
38
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Standards | Relationship |
| IEC 62420:2008 | Identical |
| EN 62420:2008 | Identical |
| IEC 61395:1998 | Overhead electrical conductors - Creep test procedures for stranded conductors |
| IEC 62004:2007 | Thermal-resistant aluminium alloy wire for overhead line conductor |
| IEC 60888:1987 | Zinc-coated steel wires for stranded conductors |
| IEC 60104:1987 | Aluminium-magnesium-silicon alloy wire for overhead line conductors |
| EN 60889:1997 | Hard-drawn aluminium wire for overhead line conductors |
| IEC 60889:1987 | Hard-drawn aluminium wire for overhead line conductors |
| IEC 61232:1993 | Aluminium-clad steel wires for electrical purposes |
| EN 61395:1998 | Overhead electrical conductors - Creep test procedures for stranded conductors |
| EN 61232:1995/A11:2000 | ALUMINIUM CLAD STEEL WIRES FOR ELECTRICAL PURPOSES |
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