1. Scope
2. References
3. Definitions, acronyms and abbreviations
   3.1 Definitions
   3.2 Acronyms and abbreviations
4. General Considerations
   4.1 Overvoltages
   4.2 Metal-Oxide arresters
   4.3 Protective levels
   4.4 Insulation withstand
   4.5 Separation effects
   4.6 Insulation coordination
5. Protection of transmission equipment and substations
   5.1 Introduction
   5.2 Transformer protection, step-by-step procedures
   5.3 Special Considerations for Protection of Transformers
   5.4 Protection of dry-type insulation
   5.5 Special considerations for shunt capacitor bank applications
   5.6 Protection of underground transmission cables
   5.7 Protection of gas-insulated substations (GIS)
   5.8 Protection of high-power static devices and systems
   5.9 Protection of series capacitor banks
   5.10 Protection of circuit breakers
6. Protection of distribution systems
   6.1 Introduction
   6.2 General procedure
   6.3 Selection of arrester ratings
   6.4 Distribution system overvoltages
   6.5 Insulation coordination
   6.6 Arrester connections
   6.7 Special applications
   6.8 Isolation
7. Protection of overhead lines
   7.1 General Considerations
   7.2 Transmission Line Protection
   7.3 Distribution Line Protection
8. Protection of electrical machines, 1000 V and greater
   8.1 Insulation withstand tests
   8.2 Methods of surge protection for motors started across-the
        line (full voltage start)
Annex A (informative) Lightning flashes, lightning stroke currents,
                      traveling waves, and station shielding
   A.1 Lightning flashes and strokes
   A.2 Arrester currents due to lightning strokes
   A.3 Line shielding
   A.4 Station shielding
   A.5 Uses of shielding in station protection applications
   A.6 Traveling waves
Annex B (informative) COG for various conditions
Annex C (informative) Calculations of surge arrester separation
                      distances
   C.1 Purpose
   C.2 Introduction
   C.3 Definitions of symbols
   C.4 Study Method
   C.5 Selection of S', the steepness or rate of rise of the
        incoming surge
   C.6 Single-line single-transformer substation, example 1
   C.7 Three-line two-transformer substation
   C.8 Presentation of Figure C.8
Annex D (informative) Distribution system overvoltage line diagrams
Annex E (informative) Dual transformer station
Annex F (informative) Modeling of gapless metal-oxide surge arresters
   F.1 Introduction
   F.2 Recommended model for temporary overvoltage and switching
        surge studies
   F.3 Recommended model for lightning studies
Annex G (informative) "Rules of thumb" for some common arrester
                      energy discharge cases
   G.1 Switching surge energy discharge
   G.2 Arrester energy requirement for shunt capacitor application
Annex H (informative) Bibliography