1 Subject Content and Applicable Scope
This standard specifies the operation test requirements of Grades I, II and III electric gate valves, electric check valve, electronic throttle valve, electric ball valve, electric diaphragm valve and the like in 300MW PWR nuclear power plant.
This standard is applicable to the operation test of the above-mentioned electric valves in 300MW PWR nuclear power plant; PWR nuclear power plants using other powers may also refer to this standard.
This standard excludes other tests of the above-mentioned valves as well as the tests of other valves used in nuclear power plant.
2 Normative References
JB 2921 Technical Specifications of Electric Valve Actuators
JB 2195 Three-phase Asynchronous Motor for YDF Series Electric Valve
EJ 395 Technical Specification for Valve Electric Actuator in 300MW PWR Nuclear Power Plant
EJ 387 Technical Specifications of Cleaning in the Stage of Primary Loop System Commissioning in 300MW PWR Nuclear Power Plant
3 General Requirements
3.1 Electric actuator
The applicable electric actuator shall not be assembled with valve for inspection before it is accepted according to the requirements of EJ 395.