测量 控制和实验室用电气设备的安全要求 - 第2-012部分:气候和环境试验及其他温度调节设备的特殊要求

[中文适用范围]： IEC 61010-2-012规定了电气测量、控制和实验室用设备及其附件的安全要求，其中设备包含一种或多种以下特征：由内部加热功能作用的制冷系统，使得组合加热和制冷系统产生比单独处理两个系统时更严重或额外的危险；在预定应用中处理的材料向制冷系统引入显著热量，导致制冷系统在应用中产生比仅在最大额定环境温度下运行更严重或额外的危险；对被处理材料进行辐照功能，带来额外的危险；使被处理材料暴露于过度湿度、二氧化碳、盐雾或其他可导致额外危险的物质的功能；呈现额外危险的机械运动功能；提供操作人员进入工作区域装载或卸载被处理材料的功能。示例包括环境测试和植物生长测试箱、结合加热的制冷循环器以及用于提取热量的回流冷却器。如果设备仅包含制冷系统或仅包含加热功能，或未引入上述额外危险，则适用IEC 61010-2-011或IEC 61010-2-010或两者。 [外文原描述]： IEC 61010-2-012:2019 specifies safety requirements for electrical equipment and its accessories within the categories a) through c), wherever it is intended to be used, whenever that equipment incorporates one or more of the following characteristics: – A refrigerating system that is acted on or impacted by an integral heating function such that the combined heating and refrigerating system generates additional and/or more severe hazards than those for the two systems if treated separately. – The materials being treated in the intended application introduce significant heat into the refrigerating system, so that the refrigerating system in the application yields additional and/or more severe hazards than those for the refrigerating system if operated at the maximum rated ambient temperature alone. – An irradiation function for the materials being treated presenting additional hazards. – A function to expose the materials being treated to excessive humidity, carbon dioxide, salt mist, or other substances which can result in additional hazards. – A function of mechanical movement presenting additional hazards. – Provision for an operator to walk in to the operating area to load or unload the materials being treated. It has the status of a group safety publication in accordance with IEC Guide 104. This second edition cancels and replaces the first edition published in 2016. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) alignment with changes introduced by Amendment 1 of IEC 61010-1:2010; b) changes related to the use of small capitals for defined terms only; c) clarifications for cooling tests in 4.4.2.10; d) requirements for overtemperature protection in 10.101, including deletion of the second part of the sentence in item b), and the deletion of item c); e) changes pertaining to the accurate employment of terms "temperature", "operating temperature", "working temperature", "application temperature", "room temperature" and "ambient temperature" in 3.5.104, 3.5.105, 4.3.1, 4.3.2, 5.4.2, 8.2.1, 8.2.2, 11.7.2.101.2, 11.7.2.101.3, 13.2.102, 14.102, 15.101, 15.102, 15.103, Introduction and many other locations. For the purpose of clarification, the definition of 3.5.114, controlled temperature, is added.