Gb T 38775 5 2021 Translated English Of Chinese Standard Gbt38775 5 2021

This document specifies the general requirements, test schemes, immunity requirements and emission requirements of electromagnetic compatibility of the electric vehicle wireless power transfer system. This document is applicable to the wireless power transfer system composed of the ground devices and on-board devices, and the ground devices and electric vehicles. It is also applicable to the ground devices, on-board devices and electric vehicles (or vehicles for short) in the wireless power transfer system. The radiated emission requirements specified in this document do not apply to intentional emissions generated by radio transmitters defined by the ITU, nor do they apply to spurious emissions related to these intentional emissions.

This document specifies the interoperability requirements and testing of the vehicle side of electric vehicle wireless power transfer system, including system architecture, classification, technical requirements, test preparation, interoperability testing and onboard reference device, etc. This document is applicable to electric vehicle static magnetic coupling wireless power transfer system, whose maximum rated voltage of the power supply is 1,000 V (AC) or 1,500 V (DC) and the maximum rated output voltage is 500 V (DC); other rated output voltages may take this as a reference in implementation.

This document specifies the interoperability requirements and testing of the ground side of electric vehicle wireless power transfer system, including system architecture, classification, technical requirements, test preparation, interoperability testing and offboard reference device, etc. This document is applicable to electric vehicle static magnetic coupling wireless power transfer system, whose maximum rated voltage of the power supply is 1,000 V (AC) or 1,500 V (DC) and the maximum rated output voltage is 500 V (DC); other rated output voltages may take this as a reference in implementation.

This Document specifies special requirements for commercial vehicle applications of electric vehicle wireless charging systems. This Document applies to static magnetic coupling wireless charging systems for electric commercial vehicles with a power level exceeding 22kW. The maximum rated voltage of the power supply is 1500V (DC), and the maximum rated output voltage is 1500V (DC). Other rated output voltages are implemented by reference.

This document specifies the classification and requirements of screw threads used for spectacle frames, the length and tolerances of screws, the thread taps and measuring instruments. This document applies to small threads, ordinary threads and thread taps. This document does not apply to self-tapping screws.

This document specifies linear and angular dimension tolerance grades and limit deviations of stamping pieces without tolerance indication. This document applies to metal stamping pieces. Non-metal stamping pieces may refer to this document. The limit deviations specified in this document apply to non-fitted dimensions.

This Standard specifies terms and definitions, classification and codes, dimensions, appearance, weight, technical requirements, test methods, inspection rules, packaging, marks and quality certificates for hot dip coating steel sheet and strip for corrugated pipe. This Standard is applicable to the hot dip coating steel sheet and strip, with a thickness of 0.7mm~10mm, for corrugated steel structure that is used in the production of pipe networks, culverts, underground water storage tanks, pedestrian walkways, underpasses for automobiles, public pipe corridors and special-shaped structures installed on site.