BET cable box system Wichmann ® Z-19.15-202. Fire-resistant sealing of cable ducts for pouring into ceilings. The duct and S90 fire sealing are created in one operation. The cable box consists of a galvanized sheet steel housing, lined with fire protection agent that foams up in the event of a fire. The fire sealing is functionally separate from the cold smoke seal and works independently of the seal. The functionality of the cable box is not interrupted by subsequent installation work. The cable sealing is delivered as an industrially prefabricated and functional component that is ready for assembly. The BET cable box is attached to the ceiling formwork on site and cast into the in-situ concrete. This procedure creates a recess for a cable installation shaft and a functional sealing in one operation. Subsequent sealing is not necessary. Incorrect and over-installation are almost impossible due to the design. A polystyrene block is included in the delivery for boxes with a width of 335 mm or more. The interior of larger BET cable boxes should be stabilized with this polystyrene element before being cast in the in-situ concrete so that the cable box does not deform when it is cast. The included EasyFoam foam plugs are used for cold smoke sealing. They have a much lower density and are therefore easier and quicker to process than, for example, fire protection plugs. The cables and the housing are sealed with a permanently elastic sealant (e.g. silicone or acrylic) or with the EasyFoam fire protection assembly foam B1. The BET cable boxes can be protected when cast in the in-situ concrete with the additionally available sheet metal covers. The BET cable box must not protrude more than 60 mm on any side of the ceiling. One-sided flush installation is possible from a ceiling thickness of 210 mm. The cable box can be 100% filled with cables of all types (without limitation of the cable diameter) and with electrical installation conduits in accordance with DIN EN 61386 with and without cable assignment up to a diameter of 63 mm. In addition, the sealed cable box can be installed without assignment as a reserve bulkhead. When using the cable, no gaps are required between cables, cables and conduits and between conduits. There are no additional restrictions on the cable types and cable diameters within the conduits. Also ideal for ceilings that have already been completed: simply fix a formwork board under the opening provided for cable feedthroughs, attach the BET cable box to the formwork and pour it into the concrete. Assembly is carried out in accordance with the enclosed assembly instructions or ABG Z-19.53-2517. No processor validation is required for installation.
| Property | Value |
| Accessories required: | no |
| Panel thickness/product length: | 270 mm |
