Anchorings

OBO’s fire-tested support and routing systems also include anchoring types such as metal spreading anchors, bolt ties, injection ties and wood screws, as well as mounting material for insulated ceilings.

• Metal spreading anchors: All OBO metal spreading anchors for mounting in concrete components were tested for fire protection. Appropriate proofs are available for the tests carried out. Depending on the fire resistance length (up to 120 minutes), a maximum load capacity was determined when anchored in concrete.
• Bolt tiles: OBO’s fire protection bolt ties were fire-tested according to ETAG 001 Part 3. The maximum load capacity, depending on fire resistance periods of up to 120 minutes, was determined for different types of solid masonry.
• Injection ties: The VMS Plus injection mortar system is particularly suitable for fastening in hollow brick, concrete and porous concrete, calcareous limestone, sand-lime brick and masonry. The connection is free from spreading pressure and is created through the form fitting of the injection mortar with the substrate and an anchor rod. The components are tested and approved for a fire resistance period of 90 minutes.
• Wood screws: If there is a fire, wood has a good characteristic, as when it burns, an insulating layer is created which delays further combustion. Taking the combustion rates into account, various cable support systems for electrical safety systems with the maintenance of electrical function classes up to E60 can be fastened to wooden components. Wood screws with a suitable steel cross-section and sufficient setting depth are used for fastening. The long screws drive deep into the cross-section of the wooden beam, ensuring a secure hold of the mounted support systems, despite burning.