GB 50242-2002 第11.3.1条
| **** | System hydraulic pressure test: After the heating system installation is completed and before pipe insulation, a hydraulic pressure test shall be carried out. The test pressure shall comply with the design requirements; where not specified in the design, for steam and hot-water heating systems, the hydraulic pressure test shall be conducted at the system's highest point working pressure plus 0.1 MPa, and the test pressure at the system's highest point shall not be less than 0.3 MPa. |