GB/T 3928-2008 "DC Resistance Voltage Divider Box" standard, to regulate the DC resistance voltage divider box. Clarify its product classification, basic parameters and structural forms, and specify key performance indicators such as voltage divider ratio Precision, insulation resistance, etc. According to the manufacturing process and Stability of the voltage divider box, strict requirements are put forward, and detailed test and inspection methods are formulated. Product labels, Encasements, etc. are also standardized to provide unified guidelines for the research and development, production, testing and use of the DC resistance voltage divider box to ensure its reliable performance and accurate voltage division in DC resistance measurement and other work.