標(biāo)準(zhǔn)號：BS EN 61482-1-2-2007
中文標(biāo)準(zhǔn)名稱：帶電作業(yè).防止電弧熱危害的防護(hù)服.試驗(yàn)方法.使用受限和定向電弧測定材料和衣料的電弧防護(hù)等級(箱中試驗(yàn))
英文標(biāo)準(zhǔn)名稱：Live working - Protective clothing against the thermal hazards of an electric arc - Test methods - Determination of arc protection class of material and clothing by using a constrained and directed arc (box test)
標(biāo)準(zhǔn)類型：C73;K09
發(fā)布日期：2007/7/31 12:00:00
實(shí)施日期：2007/7/31 12:00:00
中國標(biāo)準(zhǔn)分類號：C73;K09
國際標(biāo)準(zhǔn)分類號：13.260;13.340.10
引用標(biāo)準(zhǔn)：IEC 60584-1;ISO 3175-2;ISO 6330;ISO 9151
適用范圍：This part of IEC 61482 specifies methods to test material and garments intended for use inheat- and flame-resistant clothing for workers exposed to electric arcs. In contrast to the testmethods in IEC 61482-1-11) a directed and constrained electric arc in a low voltage circuit isused to classify material and clothing in defined arc protection classes.The test methods specified in this document are aimed at rendering a decision whether arcthermal protection is met under defined conditions. Two protection classes are tested.Protection class 1 and protection class 2 are safety requirements covering actual riskpotentials due to electric fault arcs.NOTE 1 In practice there can be higher risks. A risk analysis should clarify the actual risk.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 protectiveclothing based on the use of a directed and constrained electric arc under defined laboratoryconditions (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 twofixed 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.NOTE 2 These conditions represent e.g. low voltage environmental conditions during an electric fault.Materials and clothing will be tested with two methods: the material box test method and thegarment box test method.The material box test method is used to measure and find material response to an arcexposure when tested in a flat configuration. A quantitative measurement of the arc thermalperformance 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 arcexposure, 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, lightemissions, pressure rise, hot oil, electric shock, the consequences of physical and mentalshock or toxic influences.