This standard specifies the technical requirements, test methods, inspection rules, marking, labels, instruction manuals, packaging, transportation and storage of electric pitch systems for grid-connected wind turbines on the ground. This standard is applicable to the electric pitch system of grid-connected wind turbines on the ground, as the basis for the design, manufacture, testing and certification.
This part specifies the inspection rules and test methods for AC charging spot of electric vehicle. This part applies to charging spot in connection mode A, connection mode B, and connection mode C in charging mode 3. This part applies to type testing, ex-factory inspection, arrival acceptance of charging spots. This part applies to charging spots as specified in NB/T 33002-2018.
This Standard specifies terms and definitions, order content, technical requirements, test methods, inspection rules and markings and quality certificates of carbon and alloy steel forgings for pressure equipment.
This part of NB/T 47019 specifies such purchase technical specifications as the tube size, shape, mass, technical requirements, inspection and test rules, quality certificates, and so on, AND defines the duties, rights and obligations of the relevant parties.
This Part of NB/T 47013 specifies the general requirements and use principles of radiographic testing, ultrasonic testing, magnetic particle testing, penetrant testing, eddy current testing, leak testing, visual testing, acoustic emission testing, ultrasonic time of flight diffraction technique testing, X-ray digital radiography testing, magnetic flux leakage testing, pulsed eddy current testing and other nondestructive testing methods.
This part specifies the inspection rules and test methods for the off-board charger of electric vehicle. This part applies to the type test, exit-factory inspection, arrival acceptance of the charger. This part applies to the charger as specified in NB/T 33001-2018.
This standard specifies the preparation, sample preparation, inspection method and qualified indexes for pressure equipment (boiler, pressure vessels and pressure piping) product welded coupons.
This standard stipulates the basic composition, classification, functional requirements, technical requirements, inspection rules, marking, packaging, transportation and storage of electric vehicle AC charging spot. This standard applies to electric vehicle AC charging spot.
NB/T 20325 specifies the technical requirements, inspections, symbols and packaging of the materials, prestressed slurry test, full-scale simulated grouting experiment, friction test, prestressed construction technology and quality requirements for the prestressing system for safety containments of PWR nuclear power plants.