5　Gas Duct and Related Equipment

5.1　General Requirements

5.1.1　Besides the regulation of this code，the installation and quality acceptance for the gas duct and related equipment shall meet the relevant requirements of the current national standard Code for Acceptance of Field Equipment，Industrial Pipe Welding Construction Quality GB 50683 and Code for Equipment Installation and Acceptance of Building Material Industry GB/T 50561.

5.1.2　Before gas duct installation，the following requirements shall be met:

1　The location and dimension of foundation，embedded part of supports and hangers shall comply with the design documentation regulation，and the basic intensity shall meet the installation requirement；

2　The hoisting access for pipe components shall be unblocked；

3　Protection measures shall be carried out in the gas duct installation field and space.