Core upgrade contents of the standard: First, comprehensive update of measurement methods, adopting internationally advanced energy measurement methods, clarifying the measurement methods and calculation formulas for elevator standby energy consumption, operating energy consumption, braking energy consumption and auxiliary energy consumption, and improving the accuracy and repeatability of energy consumption measurement; Second, unified and standardized verification procedures, unifying the test conditions, test steps, data processing methods and verification procedures for elevator energy efficiency testing, ensuring that the test results of different laboratories and different regions are consistent and comparable; Third, upgraded energy efficiency grading standard, adjusting the elevator energy efficiency grade from the original 5 grades to 7 grades, raising the energy efficiency access threshold, clarifying the energy consumption limits of different energy efficiency grades, and energy efficiency grade 1 is the highest grade; Fourth, evaluation of intelligent energy saving systems, adding energy efficiency evaluation methods for elevator intelligent frequency conversion, personnel induction start and stop, energy feedback, group control scheduling and other intelligent energy saving systems, encouraging enterprises to research and develop and apply advanced energy saving technologies; Fifth, technical specifications for energy saving transformation, stipulating the technical requirements, energy efficiency testing methods and energy saving effect evaluation standards for energy saving transformation of in-service elevators, providing technical guidance for energy saving transformation of old elevators.