As the control center of nuclear power plant,DCS system accumulates more defects and hidden issues over time.In order to check the potential failure and safety hidden trouble of the important equipment and ensure the safe and stable operation of the nuclear power plant equipment,it is necessary to regularly conduct the redundancy switch test of DCS equipment regularly to verify the availability and redundancy function of the equipment.On the one hand,the redundancy test assesses the availability of the long-term running equipment,on the other hand,it evaluates the automatic undisturbed switching function of the system.During the shutdown and maintenance of nuclear power plant,the instrument and control personnel carry on the switch test to DCS system equipment according to the test procedure,and verify the availability of redundant equipment in the system.The health status and operation parameters of DCS system equipment are comprehensively check through the redundancy switch test,and the hidden trouble equipment is replaced and maintained.
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万方数据
