卷筒电缆|伺服电缆|电梯电缆Nuclear power: equipment appraisal ability is still to ascend

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卷筒电缆|伺服电缆|电梯电缆Nuclear power: equipment appraisal ability is still to ascend

With nuclear power technology in China upgrade and equipment localization, the quickening of the process of nuclear power plant nuclear grade appraisal of equipment of the importance and necessity are increasingly prominent. In China, such as nuclear level equipment appraisal ability, especially the three generations of nuclear power equipment appraisal ability, the reporter recently from inside relevant personage place to get the answer.

"Nuclear grade appraisal of equipment is the most direct purpose is in the equipment in nuclear power plant before, through the appraisal guarantee its life period in normal and abnormal, accident and earthquake conditions work ability." A the expert inside course of study tells a reporter, "improve equipment reliability, is an important link of ensuring nuclear safety."

For at present our country nuclear grade appraisal of equipment present situation, the experts say existing standard system is not perfected, technical reserve insufficiency, there are problems such as lack of identification of facilities, especially lack of three generations of nuclear power equipment identification required some test technology and appraisal method, the overall foundation is weak.

-Strict supervision to ensure safety

Related data display, nuclear equipment appraisal is the nuclear level equipment production and market access important supervision means, through the nuclear grade appraisal of equipment, which can effectively improve product design, manufacturing, strictly the quality equipment, so as to improve the safety of nuclear power. Moreover, appraisal for equipment obtaining the production license to provide basis for nuclear power equipment support form the final product, into the nuclear power market, and to realize the localization of nuclear power equipment, reduce the cost of nuclear power, nuclear power so as to improve the economy. Only through accreditation equipment, can be used for nuclear facilities. Not through the appraisal of equipment and prove qualified equipment can't factory, also can not carry out field installation.

"Equipment appraisal by the environmental evaluation (such as heat aging, irradiation, vibration, mechanical wear, electromagnetic and radio interference, LOCA, etc.) and aseismatic appraisal of the composition, is the difference between ordinary commercial products and nuclear safety equipment (hereinafter referred to as nuclear level equipment) is an important sign." National nuclear power technology company expert committee of experts YuZuCheng recently in "2012 China nuclear power sustainable development peak BBS" said.

YuZuCheng introduction, the national nuclear security administration as early as in a period by qinshan nuclear power plant safety evaluation, have already been clear about nuclear equipment must be identified requirements, and require construction site only upon receipt of equipment appraisal report to equipment installation. And, the national nuclear security administration in 1995 promulgated the "nuclear level equipment seismic appraisal guide" (HAF - J0053), 1998 national and formally promulgated the "nuclear power plant seismic design code" (GB5026797).

In addition, the state council issued in 2008 500 order and nuclear security hereby compiled a series of matching regulations (such as HAF601) what specific safety related equipment design, manufacturing activity permission management requirements, but also will be an appraisal of equipment as a regulatory focus.

Research shows that, the world nuclear power developed country by country and nuclear safety authority to nuclear level equipment production and market access implementation of strict supervision, the American ASME, IEEE, France RCC - E and other relevant laws and regulations standard are prescribed, nuclear equipment especially and implement emergency shut down, containment isolation, core cooling and prevent radioactive substances into the environment related functions such as nuclear security level equipment, the need for nuclear level appraisal. But in China HAF102, HAD102/01, HAD003/06 EJ, and other relevant laws and regulations standard also have similar provisions.

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