爆炸性环境 第29-0部分：气体检测设备 通用要求和测试方法

[中文适用范围]： IEC 60079-29-0:2025 规定了适用于工业和商业应用中用于检测气体和蒸气，并为人员或财产保护提供指示、报警或其他输出功能的可燃气体、氧气和有毒气体检测设备的一般要求、测试方法和验收标准。本文件适用于以下气体检测设备： – 用于检测可燃气体的“FL”型气体检测设备： • “FL-Group I”型，适用于易燃沼气矿井； • “FL-Group II”型，适用于非易燃沼气矿井以外的场所； • “FL-OP”型，用于可燃气体的开放式路径气体检测设备。 – 用于检测氧气的“O2”型气体检测设备： • “O2-DE”型，用于检测氧气不足或氧气富集； • “O2-IN”型，用于惰化作为防爆测量功能。 – 用于检测有毒气体的“TX”型气体检测设备： • “TX-SM”型，用于安全监控应用区域，通常使用报警信号； • “TX-HM”型，用于职业暴露限值区域的职业暴露测量； • “TX-OP”型，用于有毒气体的开放式路径气体检测设备。 本文件不适用于以下设备： – 用于医疗应用的设备； – 仅用于实验室分析或测量的设备； – 仅用于过程监控或控制的设备（如气体分析仪）； – 用于家庭环境的设备； – 用于环境空气质量监测的设备； – 用于烟气分析的设备； – 用于气体检测设备外部采样系统的设备； – 配备不可逆指示的采样器和浓缩器（如吸附剂或纸带）的设备； – 仅包含被动光学接收器且没有专用光学源的设备； – 属于IEC 60335-2-40和IEC 60335-2-89范围内的设备。 IEC 60079-29-0的首次版本取代并废止了2016年发布的IEC 60079-29-1的第二版及其2020年的修正案1，以及2009年发布的IEC 60079-29-4的首次版本。此外，IEC 60079-29-0中的“TX-SM”型取代了IEC 62990-1首次版本中的“SM”型。 [外文原描述]： IEC 60079-29-0:2025 specifies general requirements, test methods and acceptance criteria that apply to flammable, oxygen and toxic gas detection equipment intended to detect gases and vapours and to provide an indication, alarm or other output function for personnel or property protection in industrial and commercial applications. This document applies to the following gas detection equipment: – Gas detection equipment Type "FL" intended for the detection of flammable gases: • Type FL-Group I, in mines susceptible to firedamp; • Type FL-Group II, in locations other than mines susceptible to firedamp; and • Type FL-OP, open path gas detection equipment for flammable gases. – Gas detection equipment Type "O2" intended for the detection of Oxygen: • Type O2-DE, detection of oxygen deficiency or oxygen enrichment; and • Type O2-IN, inertisation as measuring function for explosion protection. – Gas detection equipment Type "TX" intended for the detection of toxic gases: • Type TX-SM, detection in areas for safety monitoring applications and typically using alarm signalling; • Type TX-HM, occupational exposure measurement in the region of occupational exposure limit values; and • Type TX-OP, open path gas detection equipment for toxic gases. This document is not applicable to equipment: – used for medical applications; – used only in laboratories for analysis or measurement; – used only for process monitoring or control purposes (such as a gas analyser); – used in the domestic environment; – used in environmental air pollution monitoring; – used for flue gas analysis; – used for sampling systems external to the gas detection equipment; – with samplers and concentrators such as sorbents or paper tape having an irreversible indication; – consisting of a passive optical receiver without a dedicated optical source; – equipment within the scope of IEC 60335-2-40 and IEC 60335-2-89. This first edition of IEC 60079-29-0 cancels and replaces the second edition of 60079-29-1 published in 2016 and its Amendment 1:2020, and the first edition of IEC 60079-29-4 published in 2009. In addition, IEC 60079-29-0 Type TX-SM cancels and replaces Type SM of the first edition of IEC 62990-1.