Introduction
1 Scope
2 Definitions, list of symbols and references
2.1 Definitions
2.2 List of symbols
2.3 References
3 Basis of design
3.1 General
4 Actions on lines
4.1 Introduction
4.2 Actions, General approach
4.3 Actions, Empirical approach
5 Electrical requirements
5.0 General
5.1 Voltage classification
5.3 Insulation co-ordination
5.4 Internal and external clearances
6 Earthing systems
6.1 Purpose
6.6 Site inspection and documentation of earthing systems
7 Supports
7.1 Initial design considerations
7.5 Timber poles
7.6 Concrete poles
7.7 Guyed structures
8 Foundations
8.5 Geotechnical design
8.6 Loading tests
9 Conductors and overhead earthwires (ground wires) with or
without telecommunication circuits
9.1 Introduction
9.6 General requirements
10 Insulators
10.1 Introduction
10.2 Standard electrical requirements
10.4 Pollution performance requirements
10.5 Power arc requirements
10.7 Mechanical requirements
10.10 Characteristics and dimensions of insulators
10.11 Type test requirements
10.12 Sample test requirements
10.13 Routine test requirements
10.14 Summary of test requirements
10.16 Selection, delivery and installation of insulators
11 Line equipment - Overhead line fittings
11.2 Electrical requirements
11.9 Characteristics and dimensions of fittings
Annex E (normative) Electrical requirements
Annex F (informative) Electrical requirements
Annex P (informative) Tests on overhead line insulators and
insulator sets in porcelain, and glass
insulating materials
Annex Q (informative) Insulators