T/CSTE 0103-2021 "Leader standard" evaluation requirements for USB fast charger

Scope

Scope: This document specifies the terms and definitions, evaluation index system, evaluation methods, and grading criteria for the evaluation of USB fast chargers meeting the "Leader" standard. This document is applicable to the evaluation of enterprise-standard level of power adapters with USB interfaces. Enterprises can refer to it when formulating enterprise standards, and relevant institutions can use it as a reference when developing evaluation schemes for the "Leader" standard of enterprise standards. Main technical content: 4.2 Evaluation Index Classification 4.2.1 The evaluation system for USB fast chargers meeting the "Leader" standard includes basic indicators, core indicators, and innovative indicators. 4.2.2 Basic Indicators 4.2.2.1 Basic indicators include safety basic performance, electromagnetic compatibility basic performance, and material safety testing. 4.2.2.2 Safety basic performance: rated output voltage, voltage test under humid and hot conditions, resistance to abnormal heat, interface short-circuit protection, flame retardancy, and output voltage ripple. 4.2.2.3 Electromagnetic compatibility basic performance: radiation continuous disturbance, conduction continuous disturbance, harmonic current, voltage fluctuation and flicker, resistance to radio frequency electromagnetic field disturbance, resistance to fast transient impulse group, surge (impulse) resistance, resistance to conduction disturbance induced by radio frequency field, voltage sag, short-term interruption, and voltage change. 4.2.2.4 Material safety performance: RoHS, four phthalate ester compounds (DEHP, DBP, BBP, DIBP). 4.2.3 Core Indicators Core indicators include free fall, charging efficiency, leakage current (contact current), surface temperature rise, low-pressure test, salt spray test, and electrostatic discharge resistance (ESD). Core indicators are divided into three levels: advanced level, corresponding to the 5-star level in the enterprise standard

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