Fire barrier system comprised of flexible non-metallic raceway or conduit risers capable of being positively pressurized and supplied in bulk coil form of indefinite length for use in the telecommunication industries for enclosing fiber optic, telecommunications and electrical cable or wire installations within building wall or ceiling structures, excluding modular cable protectors with channels that protect cables from vehicular and pedestrian traffic

'barrier':2 'build':46 'bulk':22 'cabl':41,53,59 'capabl':14 'ceil':49 'channel':56 'coil':23 'compris':4 'conduit':12 'electr':40 'enclos':35 'exclud':51 'fiber':36 'fire':1 'flexibl':6 'form':24 'indefinit':26 'industri':33 'instal':44 'length':27 'metal':9 'modular':52 'non':8 'non-metal':7 'optic':37 'pedestrian':63 'posit':17 'pressur':18 'protect':58 'protector':54 'raceway':10 'riser':13 'structur':50 'suppli':20 'system':3 'telecommun':32,38 'traffic':64 'use':29 'vehicular':61 'wall':47 'wire':43 'within':45

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