GB/T 12788-2000 in English

《GB/T 12788-2000核电厂安全级电力系统准则》由TC30（全国核仪器仪表标准化技术委员会）归口，主管部门为国家标准化管理委员会。
本标准规定了核电厂：a)安全级电力系统的主要设计准则和设计措施（这些准则和措施能使安全级电力系统在适用的设计基准事件引起的条件下满足其功能要求）；b)安全级电力系统的试验和监测要求；c)多机组核电厂共用安全级电力系统的准则。本标准适用于单机组和多机组核电厂的下列系统和设备的安全级部分：a)交流电力系统；b)直流电力系统；c)仪表和控制用电力系统。本标准不适用于优先电源、机组的发电机及其母线，发电机断路器、主（即升压）变压器、厂用(即辅助)变压器、启动(即备用)变压器、至核电厂开关站的连接线、开关站、输电线和输电网络。

Scope

This standard specifies the nuclear power plant: a) The main design criteria and design measures of the safety-level power system (these criteria and measures can make the safety-level power system meet its functional requirements under the conditions caused by the applicable design basis events); b) Safety c) Criteria for multi-unit nuclear power plants sharing safety-rated power systems. This standard is applicable to safety-level parts of the following systems and equipment in single-unit and multi-unit nuclear power plants: a) AC power system; b) DC power system; c) instrumentation and control power system. These systems include the items listed in Table 1. This standard does not apply to priority power sources, generators and their buses of units, generator circuit breakers, main (i.e. step-up) transformers, service (i.e. auxiliary) transformers, starting (i.e. standby) Connection lines, switchyards, transmission lines and transmission networks (see Figure 1).