DEHN railway earthing

Dehn

DEHN railway earthing

Published: 15 June 2023 · Category: Product Catalogues & Brochures

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DEHN railway earthing Expert solutions www.dehn-international.com Contents Railway earthing page 3 Basic knowledge Notes page 4 Materials and cross-sections DEHN railway earthing portfolio page 5 Earthing bridges / earthing connectors / accessories page 13 Approvals from DB Netz AG1) by Ebs approval drawings Selection matrix page 14 Dimensioning / design 1)DB Netz AG: rail infrastructure company of German railway 2 Railway earthing - Protect people, ensure reliable rail traffic Railway earthing protects people and equipment in the railway environment. It is necessary to prevent danger to people on the platform or damage to equipment in the event of an incident, e.g. if a contact wire of the catenery system breaks. Railway earthing means a current-proof connection between all conductive components, the return circuit and the overall earth-termination system at the substation. This connection must be short-circuit-current-proof since operating currents and, in the event of a fault, also short-circuit currents flow through it. In case of a short-circuit, the overhead contact line must be disconnected quickly. Railway earthing establishes a permanent connection with the return circuit (running rail or return wire) and also reduces the rail potential. Railway earthing is therefore a fundamental requirement in the overhead contact line zone and current collector zone of tracks (break area). EN 50122-1 is an important standard for railway earthing concepts. Requirements from this...