Cable trays and trucking (also known as trunking) are essential for managing and supporting electrical cables within buildings. However, if fire breaches the integrity of these systems, it can quickly spread via the cables themselves or through the openings where they pass through fire-rated barriers. Specialized fire protection solutions for cable trays and trucking involve applying fire-rated wraps, coatings, or barriers around the cable management systems.

Additionally, meticulous firestopping of all penetrations made by cables and trays through fire-rated walls and floors is crucial. These measures ensure that the cables do not contribute to fire spread and that the fire integrity of building compartments is maintained, even where significant electrical infrastructure is present.