本标准规定了核电站施工阶段IE级电力、仪表和控制设备及系统的安装、检查和测试要求。这些要求旨在确保只有质量合格的材料和设备才能纳入工厂，在整个施工过程中保持质量和优质工艺，并确保已完成的安装符合规定的要求，以促进公共安全，防止事故，并在事故发生时减轻其后果，并提供高度的电厂可靠性。

This standard sets forth the requirements for installation, inspection, and testing of Class IE electric power, instrumentation, and control equipment and systems during the construction phase of a nuclear power generating station. These requirements are intended to assure that only materials and equipment of acceptable quality are incorporated into the plant, that quality is maintained and quality workmanship prevails throughout the construction process, and that completed installations conform to specified requirements, so as to promote public safety, prevent accidents, and mitigate the consequences of accidents if they occur, and provide a high degree of plant reliability.