fischer Installation Systems Main Catalog Pagina 476
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Basics Fixings in the technical building equipment. Fixing product: 12 A key element in the installation of media lines is the anchor product, which ultimately forms the connection between the component and the building. A secure hold is ensured by sizing each application or project according to specific parameters. The interaction of the fixing product, such as plugs, anchors and screws, with the building material and the nature and extent of the load to which it is subjected is critical. The type of installation, such as push-through or push-in, also influences the choice of fastener. In addition, the components to be fastened can be very different in terms of the type of fastener used. For example, a mounting thread may be an internal or external thread, or a perforation in a base plate or lug. In addition, there are sometimes more stringent installation requirements. These may include the need to demonstrate fire resistance of pipework or seismic effects. Appropriate anchoring solutions with appropriate qualifications are essential. Requirements of the building law: CE marking, based on European Technical Assessments (ETAs) and harmonised European standards, provides the basis for product conformity and marketability. However, the European Construction Products Regulation (CPR) does not cover the fixing of installations in building services in its product areas. Similarly, harmonised standards or guidelines for the preparation of ETAs only exist for some areas. This is also due to the fact that cable installations are not covered by the basic requirements for buildings, in particular the requirement for mechanical strength and stability of the building. However, the building regulations with the additional technical building regulations still apply. The following categories of requirements can be derived from this: 476 1. Cable and device fixings without special requirements. In this case the requirements result from the loads of the cables or devices. 2. Equipment and component fixings based on a requirement in a national approval or declaration of performance/CE marking of a product: a. Fixing of a fire damper b. Fixing of extinguishing systems (e.g. sprinklers) 3. Requirements for the fixing of equipment and cable systems based on other building regulations: a. Requirements based on national wiring system regulations (LAR) b. Requirements according to the guideline on fire protection requirements for ventilation systems of the federal states (LüAR). For categories 2 and 3, fire resistance period qualifications or approvals from insurers such as FM Factory Mutual or VdS Schadenverhütung are generally required. With the creation of a European Assessment Document (EAD), the Construction Products Regulation offers the possibility of serving as a basis for ETAs for installation systems in the future. Fixing for installations For practical purposes, the way in which cable systems are fixed should be categorised as follows: 1. Fixing directly to the substrate (wall or ceiling) a. Single fixing b. Row fixing with mounting rails 2. Suspended from the ceiling a. Single fixing b. Row fixing with rail constructions 3. Raised mounting a. Single fixing b. Multiple fixing with mounting rail constructions As the cables generally connect the anchorage points, despite the individual anchorage points, this is a 'multiple anchorage' as failure of one anchorage point will not result in failure of the whole anchorage. Products with such ETAs are also suitable for use in cracked concrete and can therefore be used in the same way as risk resistant anchors.
512 Pagina’s | Geldig tot 12/2026 | Vorige pagina | Volgende pagina
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