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GB/T 22720.1-2017 Rotating electrical machines—Qualification and quality control tests of partial discharge free electrical insulation systems(TypeⅠ) used in rotating electrical machines fed from voltage converters (USD) via email in 1-5 business day VALID
GB/T 10068-2020 Mechanical vibration of certain machines with shaft heights 56 mm and higher—Measurement,evaluation and limits of vibration severity (USD) via email in 1-3 business day TO BE VALID
GB/T 12351-2008 Environmental technical requirements of rotating electric machines for tropical use (USD) via email in 1-3 business day VALID
GB/Z 22720.2-2013 Rotating electrical machines—Qualification and acceptance tests for partial discharge resistant electrical insulation systems(Type Ⅱ)used in rotating electrical machines fed from voltage converters (USD) via email in 1-3 business day ABOLISHED
JB/T 10415.1-2005 Hollow conductors for liquid inner cooled generator Part 1:Copper hollow conductiors via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 22714-2008 Test specifications of interturn insulation of form-wound winding for AC low-voltage electrical machines (USD) via email in 1-3 business day VALID
GB/T 17948.4-2016 Rotating electrical machines—Functional evaluation of insulation systems—Test procedures for form-wound windings—Evaluation by electrical endurance (USD) via email in 1-3 business day VALID
JB/T 7073-2006 Simplified regulation of drawing for large middle and small generator and turbine (USD) via email in 1-3 business day VALID
GB/T 22719.1-2008 Interturn insulation of random-wound winding for AC low-voltage electrical machines - Part 1: Test methods (USD) via email in 1-3 business day VALID
GB/T 21707-2018 Insulation specification for variable frequency adjustable speed definite purpose converter-fed three-phase induction motors (USD) via email in 1-3 business day VALID
JB/T 10415.1-2016 Hollow conductors for liquid inner cooled generator—Part 1:Copper hollow conductors via email in VALID please email coc@codeofchina.com for quotation
GB/T 17948.5-2016 Rotating electrical machines—Functional evaluation of insulation systems—Test procedures for form-wound windings—Multifactor evaluation by endurance under simultaneous thermal and electrical stresses (USD) via email in 1-3 business day VALID
JB/T 8446-2005 Methods for the determination of interturn short-circuit in the rotor winding of cylindrical synchronous generators (USD) via email in 1-3 business day ABOLISHED
JB/T 10415.2-2007 Hollow conductors for liquid inner cooled generator-Part 2:Stainless steel hollow conductors (USD) via email in 1-3 business day VALID
GB 1971-2006 Rotating electrical machines―Terminal markings and direction of rotation via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB 14711-2013 General requirements for safety of small and medium size rotating electrical machines (USD) via email in 1-3 business day VALID
GB/T 21211-2017 Equivalent loading and superposition techniques—Indirect testing to determine temperature rise of rotating electrical machines (USD) via email in 1-3 business day VALID
GB/T 14481-2008 Test procedure for single-phase synchronous machines (USD) via email in 1-3 business day VALID
GB 14711-2006 Safety requirements of small and medium size rotating electrical machines (USD) via email in 1-3 business day ABOLISHED
GB/T 20137-2006 Method for determining losses and efficiency of three-phase cage induction motors (USD) via email in 1-3 business day
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