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秦山二厂12号机组的仪控系统使用了大量的板件,用以实现机组监测、控制以及保护功能。部分系统为国外进口,随着运行时间的增加,所使用的板件已经陈旧落后,存在设备老化、备件稀缺等问题。由于板件功能、接口的独特性,相关备品备件只能从国外原厂获取,采购成本高,且产品质量得不到保证,采购周期得不到有效控制,甚至部分系统因为升级换代,厂家已明确表示不再提供技术服务和备件供应。这些问题使得维护活动陷入被动,对系统和机组的稳定、可靠运行带来了很大隐患。
Qinshan Plant 1 Unit 2 instrument control system uses a large number of plate, to achieve unit monitoring, control and protection functions. Some systems are imported from abroad. With the increase of operating time, the used boards are outdated and there are problems such as equipment aging and scarce spare parts. Due to the unique features of the plate and the interface, the relevant spare parts can only be obtained from the original foreign factories, the purchasing cost is high, the quality of the products can not be guaranteed, the purchase cycle can not be effectively controlled, and even some systems are upgraded because of the upgrading Clearly no longer provide technical services and spare parts supply. These problems make the maintenance activities passive and pose a serious risk to the stable and reliable operation of the system and the generating units.