Electrical equipment for measurement, control, and laboratory use - Electromagnetic compatibility requirements - Part 22: Special requirements - Test configurations, working conditions, and performance criteria for portable testing, measurement, and monitoring equipment used in low-voltage distribution systems. In addition to the requirements of GB/T 18268.1, this part of GB/T 18268 provides more detailed provisions on the test configurations, working conditions, and performance criteria for the following equipment: - - Testing of protective facilities in low-voltage distribution systems, Measurement or monitoring equipment; - Equipment powered by batteries and/or the circuit under test; -- Portable devices. This type of equipment includes but is not limited to voltage detectors, multimeter, insulation resistance tester, ground continuity resistance tester, ground resistance tester, loop impedance tester, "residual current protection device tester" (RCD tester) and phase sequence tester determined by GB/T 18216 (or IEC 61557). Note: The special electromagnetic compatibility requirements for equipment covered by IEC 61557-8 and IEC 61557-9 can be found in GB/T 18268.24. The manufacturer should specify the expected usage environment of the equipment and select the applicable test level from the specifications in GB/T 18268.1
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