一、修订的必要性国家能源局颁布的《压水堆核电厂标准体系项目表》(以下简称“体系项目表”)是现有、应有和预计制定的核电标准的蓝图,是编制核电标准规划和开展制修订计划的重要依据。为进一步适应核电标准体系建设工作对标准的新需求,需要对其实施动态维护,不断更新和充实新的标准项目,为此国家能源局于今年年初安排了“体系项目表”的第二次修订工作。二、修订的依据及原则 I. The Necessity of Revision The “Table of Standards System for PWR Nuclear Power Plants” (hereinafter referred to as the “System of Projects”) promulgated by the National Energy Administration is a blueprint for existing, due and expected nuclear power standards, Nuclear power standard planning and development plans to amend the important basis. In order to further meet the new standard of nuclear power standard construction work needs to be implemented dynamic maintenance, continuous updating and enrichment of new standard projects, for which the National Energy Bureau arranged the “System Project List ” second Times revision work. Second, the revised basis and principle