2.2 Symbols

3 Routing

4 Meteorological Conditions

5 Conductor and Earthwire

6 Insulators and Fittings

7 Insulation Coordination，Lightning Protection and Earthing

8 Conductor Arrangement

9 Tower Type

10 Tower Load and Material

10.1 Tower Load

10.2 Structural Material

11 Tower Structure

11.1 General Provisions for Calculation

11.2 Calculation Expressions for Ultimate Limit State and Serviceability Limit State

11.3 General Provisions on Tower Structure

12 Foundation

13 Clearance to Ground and Other Facilities

14 Environmental Protection

15 Labor Safety and Industrial Hygiene

16 Accessories

Appendix A Typical Meteorological Areas

Appendix B Contamination Classification for High Voltage Overhead Transmission Line

Appendix C Reference Value of m1 for Various Insulator Types

Appendix D Relationship Between Span Length and Clearance of Horizontal Lines for Towers with Suspension Insulator Strings

Appendix E Calculating Density and Cone Angle of Soil for Uplift Foundation

Appendix F Classification of Telecommunication Line

Appendix G Classification of Road

Explanation of Wording in This Code

List of Quoted Standards