Compendium of Installation Atlases for Prefabricated Houses

Currently, there is no single comprehensive resource that fully covers the 'Compendium of Installation Atlases for Prefabricated Houses'. However, reference can be made to the 'DB62/T 3300-2025 Atlas of Prefabricated Components for Mechanical and Electrical Installation Engineering in Building Construction'. The following provides an explanation from three aspects: the atlas content, scope of application, and limitations.

1. Core Content of the Atlas
'DB62/T 3300-2025' is a local standard in Gansu Province, focusing on the prefabrication technology of components in mechanical and electrical installation engineering for building construction. Its content covers design, processing, installation, and acceptance specifications for prefabricated components, such as standardized prefabrication methods for mechanical and electrical systems like pipe supports, electrical bridges, and ventilation ducts. The atlas provides detailed technical guidance for mechanical and electrical installation engineering through a combination of illustrations and text, annotating component dimensions, material requirements, connection nodes, and construction techniques.

2. Scope of Application and Value
This atlas is applicable to the use of prefabricated components in mechanical and electrical installation engineering for industrial and civil buildings, particularly suitable for projects requiring improved construction efficiency and reduced on-site workload. Its standardized design reduces material waste, enhances component interchangeability, and shortens construction periods through factory prefabrication, aligning with the development trend of prefabricated buildings. For the mechanical and electrical system installation of prefabricated houses, the atlas provides crucial technical support, but it should be noted that its focus is on the component level rather than the overall house structure.

3. Limitations and Supplementary Recommendations
Currently, no installation atlas comprehensively covering the entire system of prefabricated houses from structure to mechanical and electrical aspects has been found. For a complete solution, the following resources can be combined:

• Structural Components: Refer to national standards such as the 'Technical Specification for Prefabricated Concrete Structures' (JGJ 1-2014) to obtain installation diagrams for structural components like prefabricated wall panels and floor slabs.
• Specialized Systems: Consult specialized specifications such as the 'Design Standard for Water Supply and Drainage in Prefabricated Buildings' (GB/T 51434-2021) to supplement detailed design content for mechanical and electrical systems.
• Local Atlases: Some provinces and cities may publish regional installation atlases for prefabricated houses, requiring further search based on the project location.

It is recommended to obtain the latest atlas information through the official websites of provincial housing and urban-rural development departments, standardization institutes, or industry design units, while also paying attention to technological updates in the field of prefabricated buildings to ensure design and construction comply with regulatory requirements.