Cable trays and busways at floor level or at slab penetrations shall have a waterstop no less than 50 mm in height. Sealing shall be tight and reliable, without visible cracks or. EzyStrut was the first Australian manufacturer to design and seek independent certification for a fire rated cable support system almost a decade ago, establishing EzyStrut's reputation as a pioneer of innovative and cutting-edge cable support solutions. Each year, with each major project that. Ozstrut Fire Rated Cable Trays provide reliable cable management with proven fire resistance, ensuring critical circuits remain protected during extreme conditions. Designed for strength, compliance, and easy installation, they are trusted in commercial, industrial, and infrastructure projects. Trafalgar offer fireproofing systems for cables where fire hazards need to be solved. One to mitigate either vertical or horizontal flame spread along cables, and the other offering continuous operational circuit integrity. Cable tray through fire rated wall The most common solution for the fire protection of cable trays penetrating walls is to wrap it with insulation on both sides and finish it off with mastic or as per the manufacturer's test evidence and installation recommendations. In that time we have built up a wealth of knowledge and experience.