The purpose of conduit extensions, curve conduit extensions, bushing insulators and other accessories, e.g. inlets, is to extend installation pipes and to make it easier to attach them to mounting and junction boxes.Use of ready-made curve conduit extensions saves in installation costs; furthermore, the curves do not open when a bent conduit straightens out.Bushing insulators make it possible to add an installation pipe to a concreting mould e.g. during vaulting masonry of a building. Made of halogen free material (IEC/61249-2-21).