Presents the conceptual design of standard dc potential dividers and its special features and expounds the principle of equal - potential screening technique and actions taken for its application in standard dc potential dividers 介绍了研制标准直流分压箱的设计思想及其特点，阐述了等电位屏蔽技术的原理和应用于标准直流分压箱中所采用的措施。
