GB/T 26786-2011 "Technical Conditions for Explosion Protection of Industrial Thermocouples and Thermoresistors" The standard aims to specify the technical requirements for explosion protection of industrial Thermocouples and thermistors (hereinafter referred to as Thermocouples and thermistors) applicable to explosive gas environments, including test methods, inspection rules, Encasement and storage. The standard applies to Thermocouples and thermistors used in explosive gas environments in factories with environmental temperatures in the range of -20 ° C to + 60 ° C to ensure their safety and Reliability under these special conditions. This standard also involves normative reference documents including GB 3836.1-2000 (General Requirements for Electrical Equipment for Explosive Gas Environments), GB 3836.2-2000 (Explosive Gas Environments "d"), GB 4208-2008 (Enclosure Protection Class Standard) and GB/T 13384 (General Technical Conditions for Encasement of Electromechanical Products) to ensure compliance with the requirements of these standards. The standard also refers to terms and definitions established in GB 3836.1-2000 and GB 3836.2-2000 to maintain consistent terminology and interpretation to promote conformity and understanding of the standard.