GB/T 31240-2014

This standard specifies the design and construction requirements for pathways (e.g., conduits, cable trays, and raceways) and spaces (e.g., equipment rooms, telecommunications rooms, and entrance facilities) used to support customer premises cabling infrastructure. It is applied in the planning and installation of structured cabling systems within commercial buildings, residential complexes, and industrial facilities to ensure adequate physical routing, accessibility, and environmental protection for information technology cabling. The standard is primarily used by architects, network engineers, and facility managers to coordinate cabling pathways with building construction and to comply with national telecommunications infrastructure guidelines.