带电作业-电弧热危害防护服 第1-1部分：试验方法-方法1：服装阻燃材料电弧特性（ATPV或EBT50）的测定（第1版）

[中文适用范围]： 本文件规定了测试程序，用于确定阻燃服装材料或服装/服装组合的电弧等级（ELIM、ATPV 和/或 EBT），这些材料或服装旨在用于存在电弧危害的工人作业。使用受控实验室条件下的开路电弧来确定材料、服装或服装组合的 ELIM、ATPV 或 EBT 值。本文件不致力于将材料和服装的电弧防护性能分类为电弧防护等级。确定这些电弧防护等级（APC1 和 APC2）的程序在 IEC 61482-1-2 中规定，该标准使用受限电弧进行测试。此测试方法不适用于也不适合评估材料或服装是否具有阻燃性，这一点已在 IEC 61482-2 中涵盖。电弧的热效应以外的其他效应，如噪音、光发射、压力升高、热油、电击、身心冲击的后果或毒性影响，不在本文件范围内。非故意使用电弧进行工作（例如电弧焊、等离子炬）所涉及的防护服不在本文件范围内。 [外文原描述]： IEC 61482-1-1:2019 specifies test method procedures to determine the arc rating of flame resistant clothing materials and garments or assemblies of garments intended for use in clothing for workers if there is an electric arc hazard. An open arc under controlled laboratory conditions is used to determine the values of ELIM, ATPV or EBT of materials, garments or assemblies of garments. NOTE 1 The user can, if he desires, classify the arc protective performance into arc rating protection levels based on ELIM, ATPV and/or EBT values which correspond best to the different hazard and risks levels that can result from the user’s risk analysis. NOTE 2 This document is not dedicated to classifying the arc protective performance of the material and clothing into arc protection classes. Procedures determining these arc protection classes APC1 and APC2 are specified in IEC 61482 1-2, which uses a constrained arc for testing. NOTE 3 This test method is not intended and not appropriate to evaluate whether materials or garments are flame resistant or not, as this is covered in IEC 61482-2. Other effects than the thermal effects of an electric arc like noise, light emissions, pressure rise, hot oil, electric shock, the consequences of physical and mental shock or toxic influences are not covered by this document. Protective clothing for work intentionally using an electric arc, e.g. arc welding, plasma torch, is not covered by this document. This second edition cancels and replaces the first edition published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - addition of the Incident energy limit (ELIM) as a further arc rating performance property value; - replacement of char length requirement in the scope by indication that Procedure A is applicable for testing of materials meeting the limited flame spread requirements of IEC 61482-2; - clarification of the definition and the meaning of the Stoll curve; - modification of specification of positioning of monitor sensors with respect to the electric arc as function of intended high incident energy exposure of test specimens; - modification of specifications of monitor sensor construction; - specification of black paint; - elimination of calorimeters from the chest of the mannequin; - specification for possible positioning of mannequin(s) at a height different from the centre of the electric arc and possible turning in order to adequately expose all parts of the garment or clothing which would affect performance; - more explicit description of requirements for data acquisition system; - preconditioning of the samples; - modification of requirements for apparatus and arc exposure verification by bare shots; - more explicit description of test procedures A and B, in particular the subclauses dealing with “sequence of test”, “test parameter” and “test criteria”; - addition of determination of arc rating values of garments and/or garmet assemblies. Key words: Protective Clothing, Thermal Hazards, Open Arc, Arc Rating