Method for interrupting leakage current and insulating e.g. sleeper screws of switch box of tram rail structure against stay current, involves applying elastic coating on or between elements standing in contact with each other

摘要

The method involves applying an elastic coating (20) on or between elements standing in contact with each other, where the coating is made of polyurea, polyuria, polyurethane and epoxy resin or polyurea mixture. Fire-resistant substances in the form of inorganic salts or metal organic compounds are added to the coating, where the substances are selected from a group consisting of calcium carbonate, aluminum trihydrate, magnesium hydroxide, sodium hydroxystannate and/or calcium hydroxystannate. The coating has a thickness in the range of 1 to 4 mm.