汽车连接器降额曲线测试方法对比研究

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中图分类号：U463.62 文献标识码：A 文章编号：1003-8639（2026）01-0151-02

A Comparative Study on the Test Methods of Derating Curves for Automotive Connectors

GuoJunjial，NiYingyao，ChenXubo1，LiuXingfeng，WangZe² （1.GRG Metrology& Test Group Co.，Ltd.，Guangzhou 51oooo， China; 2. GRG Metrology & Test Group Co.， Ltd.， Shenyang 110180， China）

【Abstract】 The derating curve test of automotive connectors mainly adopts the point drawing method and the mathematical modeling formula method.BasedontheLV214 standard，this paper expounds the principles andoperation procedures of two testing methods.Through comparative tests of the same samples，it analyzes the diferences between the two methods in terms of curve smoothnes，data requirements，testsafetyandresult accuracy.The test results show thatthedeviationof the rated current data obtained bythe two methods is extremelysmall.The mathematical modeling formula methodrequiresonly5sets ofdata todrawasmoothcurve，andthe testsafetyishigher.Thedataof the point drawing methodis the measured value，which ishighlyreliable.This researchcanprovideareference for theselectionof testing methods for automotive connectors.

【Key words 】 automotive connector; derating curve; test method; comparative analysis

0 引言

电连接器降额曲线测试方法源于国际电工委员会（International ElectrotechnicalCommission，IEC）60512-5-2标准，用于评估电连接器载流能力。（剩余2322字）