Lightning protection guide by OBO

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Last revision 2020

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

Strana 119 z 288

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this case, the spacing the cable brackets should reduced. • Maintenance the necessary separation distance (s) within the limits specified the manufacturer through sufficient electrical voltage resistance the conductor, both the area the supply point as well the entire onward course.23: Minimum cross-sections for conductors a In certain situations, mm² diameter) can reduced mm² mechanical resistance not primary criterion. • Sufficient current carrying capacity through stand- ard conformant conductor cross-section the ar- restor (OBO isCon® = mm², standard requires min.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 2.g.0 mm Rounda 50 mm² Diameter mm Cable mm² Minimum diameter each wire 1. cross-sections, equipotential bonding • IEC 62561-8: Requirements for components for isolated LPS Isolated lightning protection with air-termination rods isCon system: Areas application application ex- amples Insulated conductors are installation solutions for ex- ternal lightning protection which can used primarily in locations where the separation distance cannot be maintained not applied for aesthetic reasons.2.7 mm Round 200 mm² Diameter mm Table 2. TBS Blitzschutz-Leitfaden 2018 / en / 2020/01/10 14:42:40 14:42:40 (LLExport_02613) / 2020/01/10 14:42:54 14:42:54 119 Chapter The external lightning protection system .g.12. light- ning current carrying capacity the connection points • IEC 62305 Protection against lightning Part 3: Protection structural facilities and persons, e. Requirements: • Conductor connection with lightning current carry- ing capacity the air-termination system, earthing system standard exposed conductors run to- wards the earth. arrestor system, min.3 High-voltage-resistant isCon® conductor Tasks insulated, high-voltage-resistant con- ductor Insulated conductors are used the field external lightning protection reduce avoid the separation distance according IEC 62305-3. mm²) Normative requirements Currently only the general requirements for: • IEC 62561 Lightning protection system Part 1: Requirements for connection components e. Areas application: • Mobile telecommunications antennas • Computer centres • Expansions lightning protection systems • Architectural solutions • Separation distance cannot maintained Geometry Minimum cross-sections Comments Strip mm² Minimum thickness 2