GB/T4909一2009系列標(biāo)準(zhǔn)應(yīng)用實踐及修訂建議

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Application Practice and Revision Suggestions of GB/T 49o9-2oo9 Series of Standards

WANG Hongmei QIN Kai WANG Xu (Shanghai National Center of Testing and Inspection for Electric Cable and Wire Co., Ltd.)

Abstract:TheGB/T4909-2009 seriesofstandards,Testmethods forbare wires,runthrough thewhole process ofraw material inspection, production process control,finished product testing,and engineering operationand maintenance, providing standardized technical support for the quality control of bare wire products.With the aceleration of new energy power gridconstruction,thepopularizationofUHVtechnology,andtheapplicationexpansionof micro-fine wires inhighendfields,thelimitationsofcurrentstandards intermsoftestingaccuracyformicro-fine wires,detectionmethods fornew coatings,andcompatibility with international standards have gradually become prominent.Thispaper systematically sorts out the application practices of GB/T4909 seriesof standards inqualitycontrol atthe manufacturing end,aceptance and operationand maintenanceof power enginering,third-party testingandcertification,andtechnologicalinnovation.Aiming at the pain points in the use of the standards, it puts forward revision suggestions.

Keywords:bare wires; micro wire; tensile test; single bendingtesl

0 引言

在電力傳輸與電氣設(shè)備領(lǐng)域，裸電線作為關(guān)鍵基礎(chǔ)元件，其性能優(yōu)劣直接關(guān)系到電網(wǎng)安全、設(shè)備可靠性及產(chǎn)業(yè)升級進(jìn)程。（剩余8164字）