DL/T 845.2-2020 in English

This document specifies general technical requirements for devices used to measure resistance, with particular focus on devices designed for measuring ground resistance at power frequency. It covers aspects such as performance characteristics, testing methods, safety requirements, and environmental conditions for operation. The standard provides guidelines for the design, manufacture, and verification of these instruments to ensure reliability and accuracy in measurements. It also includes requirements for marking, packaging, and transportation. The document is intended to be used by manufacturers, testing laboratories, and users involved in the production and application of ground resistance testing equipment. Detailed technical specifications and procedures are outlined to facilitate compliance with industry expectations and to support consistent quality in the field of electrical measurements.