Description Where conduits pass through fire-rated ceilings and walls, it is a requirement to terminate each side with a BESA or universal box fitted with intumescent gaskets to stop fire penetrating. It is also a requirement to fit intumescent gaskets in the back of metal switch/socket boxes where they are back-to-back and cables pass through the wall. Our extensive range of expanding intumescent gaskets and linings can be used with a wide range of standard electrical boxes. Advantages – Solutions for both plastic and metal boxes, providing up to 4 hours protection- Compatible with single or double socket or switch boxes, BESA boxes, universal conduit boxes and ceiling roses – Complies with IEE Wiring Regulations, bringing standard boxes in line with Document B Application Instructions Intumescent gaskets are essential in metal or plastic boxes where cables pass back through a wall. Gaskets must be fitted to all dry lining boxes in partition walls. Without these gaskets fire can spread into the partition within 4-5 minutes. Where cables run through back to back boxes in brick or block walls, flames can pass through within 6 minutes, resulting in a wall or partition only 6 minutes of fire integrity. Gaskets for use inside metal or plastic boxes are made to the size of the box and come with self-adhesive fixing on the back. Once the backing paper has been peeled off the fixing strip, the gasket can be adhered to the inside of the box. Holes can be cut into the gasket with a sharp knife to receive cables, or the gasket can be cut to fit the back of the box if cables are already fitted. Dry lining boxes in walls have two pads per box, made to size and adhered top and bottom. Plasterboard ceiling rose boxes can be protected by means of an intumescent cover which folds up and is passed through the hole in the ceiling. A hole is then cut in the cover to receive the cables, which are then pulled through the cover, box and ceiling before connecting the ceiling rose. Ceiling rose gaskets to fit over the ceiling rose or hook plate should be fitted where more than two cables pass through the ceiling. A hole is made in the gasket through which the cables are passed. The backing paper of the self adhesive fixing strip is then peeled off and the gasket is adhered to the ceiling. The pendant or light fitting can then be fitted. Order References / Sizes Gaskets For Standard Metal Boxes REF DESCRIPTION BEG Gasket For Standard BESA Boxes SPG Gasket For Single Metal Box DPG Gasket For Double Metal Box DPG/K1N Gasket For Quad Metal Box CRG Gasket For Ceiling Rose ICRG Internal Gasket For Ceiling Rose Data Sheets TECHNICAL DATA TD030-Standard gaskets-11-2013.pdfAdditional electrical products Information.pdf APPLICATION DATA AP030-11-2019.pdf COSHH DATA HS030-Standard-12-2015.pdf
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