| 摘要 |
<p>A fire seal for use with electrical conduits and fittings therefor comprises a sheet or layer of intumescent material applied to one or more internal surfaces of the fittings or channels through which electrical cables pass. The intumescent material may take the form of a pad or gasket (3,6) typically of between 1.5 and 5.0mm thickness and may be secured to one or more internal walls of the fittings or channels by PVC faced adhesive tape. Preferably, the intumescent material includes a high proportion of graphite to prevent electrical shorting should one or more conducting wires of the cable become exposed. <IMAGE></p> |
