This section specifies the structure and testing requirements for non electrical equipment used in explosive environments, limited to enclosure type "fr", and only in rare cases, the environment outside the enclosure will become an explosive environment and exist for a short period of time. This section is a supplement to the requirements of GB 25286.1, GB25286 The regulation of '1' applies to all current limiting shell type equipment. Equipment that meets the requirements of this section can meet the requirements of Class II Gc and Class III Dc equipment. The anti ignition type specified in this section is not suitable for use with non Gc and Dc level equipment protection types. The clauses in the following documents are referred to in this part of GB 25286 as normative references. For dated reference documents, all subsequent modification orders (excluding erroneous content) or revisions are not applicable to this section. However, all parties who have reached agreements based on the wooden section are encouraged to study whether the latest versions of these documents can be used. For dated reference documents, the latest version applies to this section. GB 25286 1-2010 Non electrical equipment for explosive atmospheres - Part 1: Basic methods and requirements
Function of testing report:
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1. Telephone communication and confirmation of requirements
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1. The testing industry is fully covered, meeting different testing needs
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4. Free initial testing, with no testing fees charged
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6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China