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NB/T 42099-2016 Guide to the synthetic testing of High-voltage alternating current circuit-breaker (USD) via email in 1-3 business day VALID
GB/T 16434-1996 Enviromental pollution classification and external insulation selection forhigh voltage transmission line,power plant and substation (USD) via email in 1-3 business day ABOLISHED
GB/T 311.6-2005 Voltage measurement by means of standard air gaps via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 18857-2002 Technical guide for live working in distribution line via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB 311.4-1983 High voltage test techniques; Part 3:Measuring device (USD) via email in 1-3 business day ABOLISHED
GB/T 18857-2008 Technical guide for live working in distribution line (USD) via email in 1-5 business day ABOLISHED
GB/T 35697-2017 General technical specification for on-line monitoring device on overhead transmission lines (USD) via email in 1 business day VALID
NB/T 42028-2014 MCR-type high voltage static var compensation installations (USD) via email in 1-5 business day VALID
JB/T 3336-1983 (USD) via email in 1-3 business day
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