Is it permissible or permitted to block the use of fireproofing in cable ducts?
Must be blocked with non-combustible materials, such as fire mud!
Cable wire bridge through the fire zone specification must be used to block the fireproof material!
Construction electrical engineering construction quality acceptance in Article 12.2.1 Article 6 provides "laying in the shaft and different fire partitions of the bridge, according to the design requirements of the location, there are fire blocking measures." This lazy rough short Nao stubble Preserving flowers in the "design requirements of the location" is generally in the fire partition wall.
