FIRE-RESISTANT CABLE RACEWAY, ITS MANUFACTURING PROCESS, AND PREFABRICATED SLAB FOR CABLE RACEWAY

摘要

FIELD: cable raceway manufacture for buildings.;SUBSTANCE: proposed raceway built around gypsum-fiber slabs for buildings including high-rise ones and for ships is assembled of prefabricated side walls with inwardly directed rabbets on their upper and lower edges as well as bottom and cover slabs with slots on their side edges running to rabbets upwards and downwards, respectively. Raceway manufacturing process includes jointing slabs by means of holders; prefabricated slabs have either specifically made slots or rabbets and slots.;EFFECT: facilitated manufacture, transport, and storage of raceway due to using standard parts.;9 cl, 5 dwg