BF-2457-2
System details
- Type
- Service Penetration
- Element
- Wall
- Substrate
- Double Layer
- Minimum Substrate Thickness
- 116 mm
- FRL / FRR
- -/120/120
- Trade
- Electrical
- Service
- Multicore / Mains / Orange Circular
- Fire Rating
- 120
Fire-stopping products
Application dimensions
- Annular Gap
- 20 - 50 mm
- Sealant Depth
- 25 mm
- Sealant Fillet
- 50 mm
Specimen size & details
Cable bundle
-Up to 2.5mm² 2C+E Power Cable
-Up to 3 x 6mm² 3C+E Power Cables
-Up to 8 x 16mm² 3C+E Power Cables
FireMastic-300™ Sealant installed 25mm deep in annular gap. For annular gaps larger than 20mm and up to 50 mm, a mineral wool backing rod must be used to back the applied sealant. The service is to be finished with a 50 mm x 50 mm fillet both sides. 600mm of Thermal Defence Wrap each side of the wall.