Chapter 5: External lightning protection
5.1 Air-termination systems
5.1.1 Designing methods and types of air-termination systems
5.1.2 Air-termination systems for buildings with gable roofs
5.1.3 Air-termination systems for flat-roofed structures
5.1.4 Air-termination systems on metal roofs
5.1.5 Principle of an air-termination system for structures with thatched roof
5.1.6 Walkable and trafficable roofs
5.1.7 Air-termination system for green and flat roofs
5.1.8 Isolated air-termination systems
5.1.9 Air-termination system for steeples and churches
5.1.10 Air-termination systems for wind turbines (WT)
5.1.11 Wind load stresses on lightning protection air-termination rods
5.2 Down-conductor system
5.2.1 Determination of the number of down-conductors
5.2.2 Down-conductor system for a non-isolated lightning protection
system
5.2.2.1 Installation of down-conductors systems
5.2.2.2 Natural components of a down-conductor system
5.2.2.3 Measuring points
5.2.2.4 Internal down-conductor systems
5.2.2.5 Courtyards
5.2.3 Down conductors of an isolated external lightning protection
system
5.2.4 High voltag-resistant, isolated down-conductor system
- HVI conductor
5.2.4.1 Installation and performance of the isolated down-conductor
system HVI
5.2.4.2 Installation examples
5.2.4.3 Project example: Training and residential building
5.2.4.4 Separation distance
5.3 Materials and minimum dimensions for air-termination conductors
and down conductors
5.4 Assembly dimensions for air-termination and down-conductor
systems
5.4.1 Change in length of metal wires
5.4.2 External lightning protection system for an industrial structure and
a residential house
5.4.3 Application tips for mounting roof conductor holders
5.5 Earth-termination systems 5.5.1 Earth-termination systems in accordance with IEC 62305-3
(EN 62305-3)
5.5.2 Earth-termination systems, foundation earth electrodes and foundation
earth electrodes for special structural measures
5.5.3 Ring earth electrodes - Earth electrodes Type B
5.5.4 Earth rods - Earth electrodes Type A
5.5.5 Earth electrodes in rocky ground
5.5.6 Intermeshing of earth-termination systems
5.5.7 Corrosion of earth electrodes
5.5.7.1 Earth-termination systems with particular consideration
of corrosion
5.5.7.2 Formation of voltaic cells, corrosion
5.5.7.3 Choice of earth electrode materials
5.5.7.4 Combination of earth electrodes made of different materials
5.5.7.5 Other anticorrosion measures
5.5.8 Materials and minimum dimensions for earth electrodes
5.6 Electrical isolation of the external lightning protection
system - Separation distance
5.7 Step and touch voltages 5.7.1 Control of the touch voltage at down conductors of lightning
protection systems
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