Process system equipment electromagnetic sensitivity test method applied to nuclear power site

Abstract

The invention belongs to a nuclear power plant instrument control technology, and particularly relates to a process system equipment electromagnetic sensitivity test method applied to a nuclear power site, which comprises the following steps: building a test system, determining tested equipment, determining test parameters to obtain actually measured antenna transmitting power, carrying out interference test, continuously observing and recording operation parameters of the tested equipment, and determining the electromagnetic sensitivity of the tested equipment. And carrying out over-limit value interference judgment. According to the method, the blank of a nuclear power station field electromagnetic compatibility test method is filled up, the control of the tested equipment and the observation signal range is defined, wider equipment type coverage is realized within limited test times, the types of all important equipment and the types of signals are involved, the tested equipment can represent the electromagnetic sensitive characteristics of a production process system, and the test efficiency is improved. The method has the characteristics of importance, sensitivity, diversity and the like; from the actual nuclear power field, the authenticity and accuracy of field equipment diagnosis are met.

Description

technical field [0001] The invention belongs to the instrument control technology of nuclear power plants, and in particular relates to an electromagnetic susceptibility testing method of process system equipment applied to nuclear power sites. Background technique [0002] Throughout the relevant domestic and foreign standards, such as the US RG1.180 "Guidelines for EMI / RFI Evaluation of Safety-related I&C Systems", the French "Rules for the Design and Construction of Nuclear Island Electrical Equipment" (RCCE), and the German KTA 3503 5.4 "Electromagnetic Compatibility EMC Test" , my country's "Nuclear Power Plant Design Safety Regulations" (HAF102) respectively put forward the requirements for electromagnetic compatibility of equipment, and the Chinese standard GB / T 11684-2003 "Electromagnetic Environmental Conditions and Test Methods for Nuclear Instruments" stipulates that nuclear reactor equipment is resistant to electromagnetic interference (EMI) test method. However, ...

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Problems solved by technology

However, all electromagnetic susceptibility tests are carried out in the laboratory test environment. Due to the complex situation of the nuclear power site, the shielding and reflection of wireless signals coexist, so that the electromagnetic power of the wireless signal on site may be focused and act on the process system equipment; The traditional standard test is carried out in the darkroom of the laboratory without shielding and reflection environment. Therefore, the electromagnetic environment of the process system equipment is different from that of the laboratory environment. The EMC test data before the equipment leaves the factory cannot be directly reused.

[0003] At present, there is no standard to follow for the electromagnetic susceptibility test in the field environment at home and abroad. Some nuclear power units have explored and practiced the electromagnetic compatibility test in the field environment, but there are still redundant steps, many irrelevant signals, and a long time window. , lack of quantitative analysis and unclear test results and other deficiencies or shortcomings

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