Lightning protection guide by OBO

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Last revision 2020

Vydal: OBO BETTERMANN s. r. o. Autor: OBO BETTERMANN

Strana 170 z 288

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Points increased risk cor- rosion, such insertion points into the concrete or soil, must corrosion-protected. Variable bi-metal quick connector with bi-metal intermedi- ate plate (copper/aluminium) TBS Blitzschutz-Leitfaden 2018 / en / 2020/01/10 14:42:40 14:42:40 (LLExport_02613) / 2020/01/10 14:42:54 14:42:54 170 Chapter The external lightning protection system . Corrosion A risk corrosion occurs especially when joining dif- ferent material types. For this reason, copper parts may installed above galvanised surfaces above aluminium parts copper particles worn away by rain other environmental influences can penetrate the galvanised surface. suitable coating must applied corrosion protection connection points the ground.1 Materials for air-termination and conductor systems The following materials are preferred for use extern- al lightning protection systems: Hot galvanised steel, rustproof steel, copper and aluminium. The following figure shows the use bimetal connect- ors copper gutter which aluminium round conductor attached.2.7. connection between two different materi- als that are not recommended joined re- quired, bi-metal connectors can used. addition, galvanic element is created, which accelerates corrosion the contact surface