核电工程DCS供货进度延误下的仪控系统相关项目的调试

I&C Commissioning Strategies with Delayed Supply of DCS Equipments for Fangjiashan Nuclear Power Project

在方家山核电工程1号机组数字化控制系统(DCS)相关设备供货进度延误情况下,仪控调试采取了一系列对策以确保工程各节点的进度。仪控调试对策包括:确认DCS最小系统、软硬件分开供货、使用试行(PRE)版本进行核辅助系统开盖功能试验、采取临时方案进行水压试验、利用国内技术力量在调试现场实施设计变更等。对所采取的对策进行了风险分析、可行性研究和方案制定。工程实践表明,所采取的仪控调试对策是行之有效的,确保了工程各节点的进度。

On condition that the supply schedule of the Digital Contral System(DCS) equipments were delayed for Fangjiashan nuclear power project unit 1, series of strategies were adopted in I&C commissioning to ensure the project progress, including the confirmation of DCS minimum system, separated supply of software and hardware, utilization of the PRE vision(prerequisite) in cover-opening functional tests of nuclear auxiliary system, adoption of temporary scheme in hydrostatic testing, and implementation of DEN on Site using domestic technology. Risk analysis, feasibility study and plan formulation were conducted for the strategies. The project practice indicated that the adopted strategies in I&C commissioning were effective, and helpful for the control of project progress.