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RACEWAY

  • US 20170167637A1
  • Filed: 12/09/2016
  • Published: 06/15/2017
  • Est. Priority Date: 12/11/2015
  • Status: Active Grant
First Claim
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1. A raceway comprising:

  • a plurality of wall portions adjoining a base portion together defining a plurality of longitudinal open channels, the open side of each channel being arranged to provide access for installation of one or more cables or pipes or wires within the respective channel; and

    an intumescent layer disposed on the inner surface of at least one of the wall portions adjacent the open side of the respective channel, the intumescent layer having a non-activated state in which the open side of the channel is maintained substantially open and a thermally activated state in which the or each intumescent layer expands so as to close the open side of the respective channel.

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