T/CASEI 007-2022 Pressure Pipeline Construction Supervision and Inspection Implementation Guidelines for Industrial Pipelines
T/CASEI 007-2022 Pressure Pipeline Construction Supervision and Inspection Implementation Guidelines for Industrial Pipelines
Basic Information
Scope
Main technical content: This document specifies the terms and definitions of supervision and inspection of industrial pipeline construction (hereinafter referred to as "supervision and inspection"), the units subject to inspection, supervision and inspection agencies, supervision and inspection personnel, work procedures, requirements for on-site installation supervision and inspection, and requirements for evaluating the implementation of on-site construction quality assurance systems. This document applies to the supervision and inspection of the construction process (including pipeline installation, modification, and major repairs) of industrial pipelines (including GC1 class, GC2 class, and GCD class) within the scope specified in the "Special Equipment Catalogue". The supervision and inspection of the construction of non-metallic pipelines shall comply with the provisions of this document and Appendix A. Among them, the on-site supervision and inspection items and requirements for the construction of polyethylene pipes shall also comply with the relevant provisions of polyethylene pipes in Chapter 8 of the "Implementation Guidelines for Supervision and Inspection of Pressure Pipeline Construction - Utility Pipelines". The supervision and inspection of the construction of power pipelines (excluding pipelines within boilers) within the boundaries of thermal power plants for transporting steam and steam-water two-phase media shall comply with the provisions of this document and Appendix B. The supervision and inspection of the construction of pressure pipelines in long-distance pipelines and utility pipeline stations shall comply with the provisions of this document and Appendix C. The dividing point between pressure pipelines and line pipelines in stations is generally an isolation valve. The supervision and inspection of the construction of modifications or major repairs of pipelines with a total length of more than 100m for replacing the same medium (except for