Standard Number: YB/T 4122.2-2021(YB/T4122.2-2021)
Chinese:冶金企业微机继电保护第2部分：检验规程
English:Metallurgical enterprise microcomputer relay protection part 2: test procedures
Effective Date:2021-07-01
Standard Applicability:This document specifies the cycle, content and requirements for the inspection of microcomputer relay protection device and its secondary circuit in metallurgical industry. This document applies to the metallurgical industry and microcomputer relay protection device installation and commissioning, operation and maintenance work.
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