Lightning protection guide by OBO

| Kategorie: Katalog  |

Last revision 2020

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

Strana 228 z 288

Jak získat tento dokument?






Poznámky redaktora
Depending the coupling resistance the cable and the shield cross-section, the shield may be able withstand lightning current.Data cable with shield When laying the cable must ensured that the shield connection continuous and earthed both ends. Device 1 Device 2 Data cable Shield connected both ends Equipotential busbar Earth connection Cable shield earthed both ends Transmitter Data cable Adjacent cable with potential difference Parasitic capacitances Interference currents Interference-free signal Shield for conducting interference currents away Capacitive coupling onto the transmitter prevented the shield TBS Blitzschutz-Leitfaden 2018 / en / 2020/01/10 14:42:40 14:42:40 (LLExport_02613) / 2020/01/10 14:42:54 14:42:54 228 Chapter The internal lightning protection system . Shields that are earthed both ends are additionally effective against inductive coupling. The cable the example connected both ends so shielded against both capacitive and inductive coupling. cable shield that only earthed one end is only effective against capacitive coupling