IEC 61482-1-2:2007 实际工作 - 防止电弧热危害的防护服 - 第1-2部分:测试方法 - 方法2:使用约束和定向电弧确定材料和衣服的电弧防护等级（盒式测试）

标准编号：IEC 61482-1-2:2007

中文名称：实际工作 - 防止电弧热危害的防护服 - 第1-2部分:测试方法 - 方法2:使用约束和定向电弧确定材料和衣服的电弧防护等级（盒式测试）

英文名称：Live working - Protective clothing against the thermal hazards of an electric arc - Part 1-2: Test methods - Method 2: Determination of arc protection class of material and clothing by using a constrained and directed arc (box test)

发布日期：2007-01-23

标准范围

IEC 61482的本部分规定了用于接触电弧的工人的耐热和阻燃服装的材料和服装的试验方法。与IEC 61482-1-1中的试验方法相比，低压电路中的定向和约束电弧用于将材料和服装分类为规定的电弧防护等级。本文件中规定的试验方法旨在判定在规定条件下是否满足电弧热保护要求。测试了两种保护等级。1级保护和2级保护是安全要求，涵盖因电气故障电弧而产生的实际潜在风险。试验方法不针对测量电弧热性能值（ATPV）。IEC 61482-1-1中规定了测定ATPV的方法。本标准规定了在规定的实验室条件下，基于定向和约束电弧的使用，可以评估材料和防护服的试验（方框-测试）。选择了与试验装置和试验条件、电气和结构参数有关的实际场景。对于测试，使用低电压程序。根据预期短路电流的大小，可以选择在两个固定的试验类别中进行试验:1类:4kA；2班:7千卡。在两个试验等级中，电弧的规定持续时间均为500 ms。材料和服装将采用两种方法进行测试:材料箱测试法和服装箱测试法。材料箱试验方法用于测量和发现在平面结构中进行试验时材料对电弧暴露的响应。利用通过材料传输的能量对电弧热性能进行定量测量。服装盒试验方法用于测试电弧暴露后防护服的功能，包括所有服装发现、缝纫胎面、扣件和其他附件；不会测量热通量。测试指的是热电弧效应；它不适用于其他影响，如噪音、光排放、压力升高、热油、电击、身体和精神冲击的后果或毒性影响。

This part of IEC 61482 specifies methods to test material and garments intended for use in heat- and flame-resistant clothing for workers exposed to electric arcs. In contrast to the test methods in IEC 61482-1-1 a directed and constrained electric arc in a low voltage circuit is used to classify material and clothing in defined arc protection classes.The test methods specified in this document are aimed at rendering a decision whether arc thermal protection is met under defined conditions. Two protection classes are tested. Protection class 1 and protection class 2 are safety requirements covering actual risk potentials due to electric fault arcs.The test methods are not directed toward measuring the arc thermal performance value (ATPV). Methods determining the ATPV are prescribed in IEC 61482-1-1.This standard specifies tests with which it is possible to evaluate materials and protective clothing based on the use of a directed and constrained electric arc under defined laboratory conditions (box-test). A practical scenario concerning test set-up and test conditions, electrical and constructional parameters is selected.For the tests a low voltage procedure is used. The tests can optionally be carried out in two fixed test classes, selected by the amount of prospective short circuit current:Class 1: 4 kA;Class 2: 7 kA.The defined duration of the electric arc is 500 ms in both test classes.Materials and clothing will be tested with two methods: the material box test method and the garment box test method.The material box test method is used to measure and find material response to an arc exposure when tested in a flat configuration. A quantitative measurement of the arc thermal performance is made by means of the energy transmitted through the material.The garment box test method is used to test the function of the protective clothing after an arc exposure, including all the garment findings, sewing tread, fastenings and other accessories; no heat flux will be measured.Testing refers to the thermal arc effects; it does not apply to other effects like noise, light emissions, pressure rise, hot oil, electric shock, the consequences of physical and mental shock or toxic influences.

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