It was learned from the official website of Shandong Quality and Technical Supervision Bureau that in the third quarter of 2016, the bureau organized the provincial supervision and spot check on the quality of explosion-proof lamps, and randomly selected 11 batches of products produced by 11 enterprises in the province. Two batches of products failed. It was learned from the official website of Shandong Quality and Technical Supervision Bureau that in the third quarter of 2016, the bureau organized the provincial supervision and spot check on the quality of explosion-proof lamps, and randomly selected 11 batches of products produced by 11 enterprises in the province. Two batches of products failed. According to the Shandong Provincial Bureau of Quality and Technical Supervision, this spot check is based on GB3836.1-2010 "Electrical Equipment for Explosive Gas Environments Part 1: General Requirements", GB 3836.-2010 "Electrical Equipment for Explosive Gas Environments Part 2: Separation Explosive type d", GB 3836.3-2010 "Electrical equipment for explosive gas atmospheres Part 3: Increased safety type e", GB3836.4-2010 "Electrical equipment for explosive gas atmospheres Part 4: Intrinsically safe type i", MT221- 2005 "Explosion-proof lamps for coal mines" and other standards, drawings, data inspection, structural inspection, impact test, introduction device clamping performance test, introduction device sealing performance test, casing pressure test, internal ignition failure test 14 items including explosion test, thermal shock test, shell protection level test, spark ignition test, dielectric strength test, insulation resistance test, voltage fluctuation test and joint torsion test were tested. The results showed that two batches of products produced by Shandong Huading Weiye Energy Technology Co., Ltd. and Shandong Puyue Energy Technology Co., Ltd. were unqualified, and the unqualified items involved structural inspection.
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