National Standard GB/T 42568-2025 Technical Requirements for Elevator Energy Feedback Devices Officially Released
Formulated under the jurisdiction of the National Technical Committee for Elevator Standardization, this standard applies to voltage-type, current-type and bidirectional converter-type energy feedback devices matched with traction-driven elevators, covering the whole process of design, production, testing, installation and operation. Core contents include:
First, Classification and Scope, divided into general, high-efficiency and ultra-high-efficiency types according to applicable elevator power, voltage level and feedback efficiency, clarifying adaptation requirements for different power segments (≤7.5kW, 7.5-22kW, ≥22kW);
Second, Core Performance Indicators, mandating energy feedback efficiency ≥92%, harmonic distortion THD ≤5%, power factor ≥0.98, voltage fluctuation range ±15%, ensuring stable grid adaptation;
Third, Energy Efficiency Testing Methods, establishing a full-condition energy efficiency testing system for elevators under no-load, half-load, full-load and overload, adding stability tests for high/low temperature, grid fluctuation and continuous operation, clarifying test cycles and judgment criteria;
Fourth, Safety Protection Requirements, must be equipped with multiple protections such as overvoltage, overcurrent, overheating, leakage, lightning protection and anti-islanding, protection grade not lower than IP54, and electrically interlocked with elevator control system;
Fifth, Installation and O&M Specifications, clarifying installation location, grounding requirements, heat dissipation conditions and daily inspection cycle, specifying replacement standards and service life of core components (IGBT modules, capacitors, heat dissipation systems).
After implementation, this standard will fully standardize China's elevator energy-saving component market, promote the popularization of green elevator technology, provide Chinese standards for global elevator energy-saving transformation, and help achieve the "Dual Carbon" goals.