CJJ 33—2005 Code for Construction and Acceptance of Urban Gas Transmission and Distribution Engineering

Author: Ministry of Construction of the People's Republic of China
Publisher:
Publish Date: 2005-03-01
Features: In accordance with the requirements of Document No. 284 of the Ministry of Construction, the standard preparation team comprehensively revised this specification after in-depth research, carefully summarizing domestic and international scientific research results and extensive practical experience, and widely soliciting opinions. The main technical content of this specification includes: 1. General Provisions; 2. Earthwork Engineering; 3. Loading, Transportation, and Storage of Pipes and Equipment; 4. Corrosion Protection of Steel Pipes and Pipe Fittings; 5. Buried Steel Pipe Laying; 6. Ductile Iron Pipe Laying; 7. Polyethylene and Steel-Reinforced Polyethylene Pipe Laying; 8. Installation of Pipe Accessories and Equipment; 9. Pipe Penetration (Crossing); 10. Construction of Outdoor Overhead Gas Pipelines; 11. Gas Field Stations; 12. Testing and Acceptance. The main technical content of the revised specification includes: 1. Comprehensive revision of the original specification; 2. The pressure of steel pipes increased from 0.8 MPa to 4.0 MPa; 3. New provisions added for the construction and acceptance of ductile iron pipes, polyethylene pipes, and steel-reinforced polyethylene composite pipes; 4. New provisions added for the construction and acceptance of steel pipe polyethylene adhesive tape, coal tar enamel, fusion epoxy powder, and polyethylene corrosion protection; 5. Additional provisions added for the construction and acceptance of gas pipeline penetration (crossing) projects; 6. New provisions added for the construction and acceptance of outdoor overhead gas pipelines; 7. New provisions added for the construction and acceptance of gas pipeline accessories and equipment installation; 8. New provisions added for the construction and acceptance of liquefied petroleum gas gasification stations and mixing stations. This specification is managed and interpreted by the Ministry of Construction for mandatory provisions, and the lead drafting unit is responsible for the interpretation of specific technical content.