Fireproof sealing of cable tray side walls

When cable trays pass through walls or floors, seal openings using fire-rated penetration sealing materials. Do not modify or damage the tray coating or structure during use. Route Planning and Layout Principles Coordinate with Building Structure: Cable tray routing should align with architectural design, avoiding unnecessary. FIRSTO firestops are designed to seal multi-cable and cable tray penetrations of fire-rated walls and floors. Inside a non-combustible fibreglass casing, a high-density concentrate of intumescent components, inert thermal insulators and products with gradual release of. [pdf]