DL/Z 249-2012 Guidelines for selecting on-line monitor of gases dissolved in transformer oil

DL/T 722-2014 Guidelines for analyzing and evaluating the dissolved gases in transformer oil DL/T 722-2000 Guidelines for analyzing and evaluating the dissolved gases in transformer oil GB 4943-2001 Safety of information technology equipment GB 4943.1-2011 Information technology equipment—Safety—Part 1:General requirements GB 4943.1-2022 Audio/video,information and communication technology equipment—Part 1:Safety requirements GB 4943.21-2019 Information technology equipment—Safety—Part 21:Remote power feeding GB 4943.22-2019 Information technology equipment—Safety—Part 22:Equipment to be installed outdoor GB 4943.23-2012 Information technology equipment—Safety—Part 23:Large data storage equipment GB/T 17623-1998 Determination of componental contents of gases dissolved in insulating oil by gas chromatography method GB/T 17623-2017 Determination of componental contents of gases dissolvedin insulating oil by gas chromatography method GB/T 2887-2000 Specification for electronic computer field GB/T 2887-2011 General specification for computer field GB/T 4943.2-2026 Audio/video,information and communication technology equipment—Part 2:Explanatory information related to GB 4943.1—2022