IEC 60888 : 1.0
IEC 60888 : 1.0
ZINC-COATED STEEL WIRES FOR STRANDED CONDUCTORS
International Electrotechnical Committee
ZINC-COATED STEEL WIRES FOR STRANDED CONDUCTORS
International Electrotechnical Committee
Foreword
Preface
1. Scope
2. Values for zinc-coated steel wires
3. Material
4. Freedom from defects
5. Diameter and tolerance on diameter
6. Length and tolerance on length
7. Joints
8. Sampling
9. Place of testing
10. Mechanical tests
10.1 Stress at 1% extension
10.2 Tensile test
10.3 Ductility test
11. Zinc coating test
11.1 Determination of mass of zinc coating
11.2 Gas volumetric method
11.3 Gravimetric method
11.4 Test for adherence of zinc coating
11.5 Continuity of coating
12. Certificate of coating
Appendix A - Gas volumetric method for determining mass of zinc
coating
Appendix B - Gravimetric method for determining mass of zinc
coating
Applies to zinc-coated steel wires used in the construction and/or reinforcement of conductors for overhead power transmission purposes. It is intended to cover all wires used in construction where the individual wire diameters, including coating, are in the range of 1.25 mm to 5.50 mm. Three grades of steel are included to reflect the needs of the conductor users: regular steel, high strength steel and extra high strength steel. Two classes of coating represented by minimum zinc mass per unit area are included: Class 1 and Class 2.
Document Type | Standard |
Status | Current |
Publisher | International Electrotechnical Committee |
Committee | TC 7 |