G 474 (M)
Maßnahmen für den sicheren Betrieb von Gasrohrleitungen in den Einflusszonen bergbaulicher Tätigkeit
Maßnahmen für den sicheren Betrieb von Gasrohrleitungen in den Einflusszonen bergbaulicher Tätigkeit
Brief description
This DVGW Code of Practice G 474 is intended for pipeline operators who operate or intend to construct pipelines for the supply of gas to the general public in the areas of influence of mining activities and for pipeline operators in whose supply area mining activities are new, active or have been terminated. It contains elaborations on responsibilities, competencies and procedures for the planning, construction, maintenance and operation of gas pipelines (gas transport pipelines, gas supply and grid connection pipelines) as well as descriptions for their technical safety and monitoring under the special conditions of impact and effects caused by mining activities. This Code of Practice G 474 applies to pipelines for the supply of gas to the general public in which gases in accordance with DVGW G 260 (A), with the exception of liquefied gases in the liquid phase, are transported. These gas pipelines may be located, have been located or will be located in the areas of influence of mining activities, irrespective of nominal diameters, pressure ratings and materials. They may be subject to the Energy Industry Act (EnWG) alone or additionally to the Ordinance on High-Pressure Gas Pipelines (GasH-DrLtgV). Planning, construction, operation and maintenance must be carried out in accordance with the DVGW regulations, taking into account the relevant provisions of the Federal Mining Act (BBergG). This Code of Practice can be applied mutatis mutandis to pipelines that are not used to transport gases in accordance with DVGW Code of Practice G 260, taking into account the specific properties of the other media and therefore possibly other regulations. Further applications could arise for other civil engineering activities (e.g. tunnel driving) and in the area of subsoils at risk of subsidence (e.g. fillings, alluvial soils, soils at risk of slipping) or other cavity structures (e.g. bunkers).
