T/CAS 737-2023 Urban Safety Risk Assessment Standards for Water Supply Pipeline Network Running Time

Scope

Main technical content: 1. Scope This document specifies the content, methods, processes, and implementation requirements for the safety risk assessment of urban water supply pipe networks. This document applies to the safety risk assessment of water transmission and distribution pipelines in urban water supply networks. 2. Normative references The content of the following documents is incorporated into this document through normative references. Among them, the referenced documents with a specified date apply only to the version corresponding to that date; for unspecified date documents, the latest version (including all amendments) applies to this document. - GB/T 23694-2013: Risk Management - Terminology - GB 50332: Code for the Design of Pipelines in Water Supply and Drainage Engineering - DB31/T 1332-2021: Technical Specification for Safety Risk Assessment of Urban Water Supply Pipe Networks - DB31/T 1333-2021: Technical Specification for Safety Risk Monitoring of Urban Water Supply Pipe Networks 3. Terms and definitions The following terms and definitions apply to this document. 3.1 Safety risk The combination of the possibility of unsafe events occurring in the water supply pipe network and the resulting losses. [Source: GB/T 23694-2013, Section 2.1, with modifications.] 3.2 Risk probability The frequency or probability of safety risks occurring in the water supply pipe network. [Source: GB/T 23694-2013, Section 4.6.1.1, with modifications.] 3.3 Risk consequence The adverse consequences or negative impacts caused by safety risks in the water supply pipe network. [Source: GB/T 23694-2013, Section 4.6.1.3, with modifications.] 3.4 Safety risk assessment The process of identifying, analyzing, and evaluating the possibility of safety risks and the resulting losses in the operation of the water supply pipe network.

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