Lightning protection guide by OBO

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Last revision 2020

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

Strana 181 z 288

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1.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 PAS equipotential busbar for potentially explosive areas Innovative.3 Potentially explosive areas Systems potentially explosive areas require equipo- tential bonding according IEC 60079-14.2. Secure equipotential bonding connections against self-loosen- ing according IEC 60079-14 and the Technical Rules for Operating Safety (TRBS) 2152 Part 3. Potentially explosive areas ATEX zones 21 and 22 The unique PAS equipotential busbar (equipoten- tial busbar for potentially explosive areas) used for lightning protection equipotential bonding according to IEC 62305-3 and protective/functional equipotential bonding according DIN VDE 0100 Part 410/540. Thanks its patented design, the equipotential bus- bar can used for installation according IEC 60079-14 and IEC 62305-3 the zones 1/21 and Ex zones 2/22. The lack ignition sparks explosive atmosphere has been tested the basis IEC 62561-1 accord- ing explosion group IIC and can thus also used for the explosion group IIA and IIB. The PAS equi- potential busbars not have their own potential igni- tion source and are thus not subject the European Directive 2014/34/EU. Unique. The PAS (equipotential busbar for potentially ex- plosive areas) offers the following advantages: • Free ignition sparks • Tested independent testing body kA • Explosion groups IIC, IIB and IIA TBS Blitzschutz-Leitfaden 2018 / en / 2020/01/10 14:42:40 14:42:40 (LLExport_02613) / 2020/01/10 14:42:54 14:42:54 181 Chapter The internal lightning protection system . confirmed that the PAS type equipotential busbars are suitable for use po- tentially explosive areas Zone 1/2 (gases, vapours, mist) well Zone 21/22 (dusts). 3. Patented. According TRBS 2152 Part and IEC 62305-3, the arresting paths the lightning must created in such way that heating ignitable sparks spray sparks cannot become the ignition source the po- tentially explosive atmosphere. All the bodies electrically conductive parts must con- nected the equipotential bonding system