The Shandong Provincial Market Regulation Administration has published the results of its 2025 provincial-level supervision and sampling inspection for the quality of explosion-proof electrical products. A total of 27 batches of products were sampled in this fifth batch of inspections for 2025, comprising 22 batches from the production stage and 5 batches from online sales channels.
The inspection was conducted in accordance with standards including GB/T 3836.1-2021 "Explosive atmospheres - Part 1: Equipment - General requirements", GB/T 3836.2-2021 "Explosive atmospheres - Part 2: Equipment protection by flameproof enclosures 'd'", and GB/T 3836.3-2021 "Explosive atmospheres - Part 3: Equipment protection by increased safety 'e'". Tested items for the explosion-proof electrical products included clearance, creepage distance, flameproof joint surface, impact test, dielectric strength, clamping test for unarmoured cables and cables with braided covering (clamping test, mechanical strength), additional requirements for cable entries of flameproof enclosures (sealing test, mechanical strength test), enclosure pressure test, and internal ignition non-transmission test.
The inspection identified one batch of products from one seller, Shandong Nuodun Electronic Technology Co., Ltd., as non-compliant with the relevant standards. The specific non-conforming item was the flameproof joint surface.
Regarding the sellers and alleged producers of the non-compliant products found in this inspection, the Shandong Provincial Market Regulation Administration has instructed the relevant local market regulation departments to handle the results in accordance with the "Product Quality Law of the People's Republic of China", the "Interim Measures for the Administration of Product Quality Supervision and Sampling", and the relevant provisions of the State Administration for Market Regulation and the Shandong Provincial Market Regulation Administration concerning supervision and sampling.
**Summary of Non-Compliant Products in the 2025 Provincial Supervision and Sampling for Explosion-Proof Electrical Product Quality**
| No. | Product Name | Sampling Stage | Enterprise Name | Unified Social Credit Code | Alleged Manufacturer | Production Date/Batch No. | Model | Trademark | Inspection Result | Non-Conforming Item | Inspection Agency | Certification Body | Remarks | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | Industrial and Commercial Purpose Point-Type Combustible Gas Detector | Online Sales | Shandong Nuodun Electronic Technology Co., Ltd. | 91370100MA3NL0GE4Q | Shandong Nuodun Electronic Technology Co., Ltd. | 2025-11 | GTYQ-ND-T100 | — | Non-compliant | Flameproof joint surface | Xuzhou Inspection and Testing Center | Fire Product Conformity Assessment Center of the Ministry of Emergency Management | |
**Summary of Compliant Products in the 2025 Provincial Supervision and Sampling for Explosion-Proof Electrical Product Quality**
| No. | Product Name | Sampling Stage | Enterprise Name | Unified Social Credit Code | Alleged Manufacturer | Production Date/Batch No. | Model | Trademark | Inspection Result | Inspection Agency | Certification Body | Remarks | | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | :--- | | 1 | Mine Flameproof and Intrinsically Safe DC Regulated Power Supply | Production | Jinan Fushen Xing'an Technology Co., Ltd. Tianqiao Branch | 91370105MA3PJW057K | Jinan Fushen Xing'an Technology Co., Ltd. Tianqiao Branch | 202507 | DA2507146 KDW660/12B(A) | — | Compliant | Xuzhou Inspection and Testing Center | Nanyang Explosion-Proof Electrical Research Institute Co., Ltd. | | | 2 | Mine Flameproof and Intrinsically Safe DC Regulated Power Supply | Production | Jinan Huake Electrical Equipment Co., Ltd. High-tech Branch | 91370100MA3TCMY43Y | Jinan Huake Electrical Equipment Co., Ltd. High-tech Branch | 2025-09-22 | 412412005 KDW127/18B | — | Compliant | Xuzhou Inspection and Testing Center | Zhongchuang Xinhai (Tianjin) Certification Service Co., Ltd. | | | 3 | Mine Flameproof and Intrinsically Safe DC Regulated Power Supply | Production | Jinan Landong Laser Technology Co., Ltd. Jining Branch | 91370800669316429M | Jinan Landong Laser Technology Co., Ltd. Jining Branch | 2025-10-20 | LD222510001 KDW660/12B2 | — | Compliant | Xuzhou Inspection and Testing Center | Shanghai Instrumentation and Automation System Inspection and Testing Institute Co., Ltd. | | | 4 | Electromagnetic Gas Emergency Shut-off Valve | Production | Jinan Daqin Electromechanical Equipment Co., Ltd. | 91370113720705471F | Jinan Daqin Electromechanical Equipment Co., Ltd. | 2025-07-07 | 202507070156 DRQF15-0.01/KT(Y)LNA | — | Compliant | Xuzhou Inspection and Testing Center | Nanyang Explosion-Proof Electrical Research Institute Co., Ltd. | | | 5 | Vapor-to-Liquid Ratio Collector | Production | Qingdao Aobotaike Safety Equipment Co., Ltd. | 91370220X14256330D | Qingdao Aobotaike Safety Equipment Co., Ltd. | 2025-11 | 2511030005 UZK-GLR | — | Compliant | Xuzhou Inspection and Testing Center | Zhongchuang Xinhai (Tianjin) Certification Service Co., Ltd. | | | 6 | Temperature Transmitter | Production | Qingdao Huacheng Measurement and Control Equipment Co., Ltd. | 91370203MA3DEXRC0R | Qingdao Huacheng Measurement and Control Equipment Co., Ltd. | 2025-11-10 | 5111042156 HCT400 | — | Compliant | Xuzhou Inspection and Testing Center | — | | | 7 | Explosion-Proof Junction Box | Production | Shandong Annengda Explosion-Proof Electrical Appliance Co., Ltd. | 91370105589941793T | Shandong Annengda Explosion-Proof Electrical Appliance Co., Ltd. | 2025-10 | 20251001001 BJX | — | Compliant | Xuzhou Inspection and Testing Center | Zhongchuang Xinhai (Tianjin) Certification Service Co., Ltd. | | | 8 | Industrial and Commercial Purpose Point-Type Combustible Gas Detector | Production | Shandong Baina Electronic Equipment Co., Ltd. | 91370102MA3NPE7X28 | Shandong Baina Electronic Equipment Co., Ltd. | 2025-10 | TZR251001010002 GT-BNT1000 | — | Compliant | Xuzhou Inspection and Testing Center | — | | | 9 | Coal Mine Flameproof Low-Voltage Cable Junction Box | Production | Shandong Dongda Electromechanical Co., Ltd. | 91370800674528741E | Shandong Dongda Electromechanical Co., Ltd. | 2025-10 | 202510005 BHD-10/127-16G | — | Compliant | Xuzhou Inspection and Testing Center | CQM Standards and Certification Group Co., Ltd. | | | 10 | Mine Intrinsically Safe Wireless Remote Transmitter | Production | Shandong Heibao Electrical Technology Co., Ltd. | 91370883MA3CD03K7Q | Shandong Heibao Electrical Technology Co., Ltd. | 2025-11 | Y2025037 FYF35 | — | Compliant | Xuzhou Inspection and Testing Center | Zhongchuang Xinhai (Tianjin) Certification Service Co., Ltd. | | | 11 | Self-Regulating Heating Cable | Production | Shandong Huaning Electric Heat Tracing Technology Co., Ltd. | 913701267926462392 | Shandong Huaning Electric Heat Tracing Technology Co., Ltd. | 2025-10-30 | 2025-10-0051-1-130 DWK2-PF | — | Compliant | Xuzhou Inspection and Testing Center | Nanyang Explosion-Proof Electrical Research Institute Co., Ltd. | | | 12 | Temperature and Humidity Detector | Production | Shandong Lanyu Environmental Protection Instrument Co., Ltd. | 91370102MA9528CW9L | Shandong Lanyu Environmental Protection Instrument Co., Ltd. | 2025-10 | 9732510480 LY-TH6000 | — | Compliant | Xuzhou Inspection and Testing Center | — | | | 13 | Mine Flameproof LED Roadway Lamp | Production | Shandong Lichuang Electric Co., Ltd. | 91371202749864687P | Shandong Lichuang Electric Co., Ltd. | 2025-08 | 253211 DGS18/127L(B) | — | Compliant | Xuzhou Inspection and Testing Center | Nanyang Explosion-Proof Electrical Research Institute Co., Ltd. | | | 14 | Junction Box for Intrinsically Safe Circuits | Production | Shandong Luyun Intelligent Equipment Co., Ltd. | 91370117MAC0G4L35Q | Shandong Luyun Intelligent Equipment Co., Ltd. | 2025-09 | 25090301 JHH16 | — | Compliant | Xuzhou Inspection and Testing Center | CQM Standards and Certification Group Co., Ltd. | | | 15 | Self-Limiting Heating Cable | Production | Shandong Luguang Thermal Control Technology Co., Ltd. | 913701050840154529 | Shandong Luguang Thermal Control Technology Co., Ltd. | 2025/10/30 | ZXW220V-G-P-40 | — | Compliant | Xuzhou Inspection and Testing Center | CQM Standards and Certification Group Co., Ltd. | | | 16 | Explosion-Proof Centrifugal Fan | Production | Shandong Qineng Fan Co., Ltd. | 91370305570494524B | Shandong Qineng Fan Co., Ltd. | 2025-11 | G2510006004 LKWB200M | — | Compliant | Xuzhou Inspection and Testing Center | China Quality Certification Center | | | 17 | Explosion-Proof Junction Box | Production | Shandong Shengli Bohai Petroleum Equipment Group Co., Ltd. | 91370502MABWRDDM1W | Shandong Shengli Bohai Petroleum Equipment Group Co., Ltd. | 2025-09 | BXJ01-400 | — | Compliant | Xuzhou Inspection and Testing Center | Nanyang Explosion-Proof Electrical Research Institute Co., Ltd. | | | 18 | Wireless Acoustic-Vibration-Temperature Intelligent Sensor | Production | Shandong Shengye Intelligent Control Technology Co., Ltd. | 91370600312763568M | Shandong Shengye Intelligent Control Technology Co., Ltd. | — | 30701197 BSY6009 | — | Compliant | Xuzhou Inspection and Testing Center | — | | | 19 | Mine Intrinsically Safe Wireless Data Collector | Production | Shandong Sikesaide Mining Safety Engineering Co., Ltd. | 91370902793938241F | Shandong Sikesaide Mining Safety Engineering Co., Ltd. | 2025-09 | 2509101 YHC200W(A) | — | Compliant | Xuzhou Inspection and Testing Center | Nanyang Explosion-Proof Electrical Research Institute Co., Ltd. | | | 20 | Flameproof and Dust Explosion-Proof High-Efficiency Three-Phase Asynchronous Motor | Production | Shandong Tailida Motor Co., Ltd. | 913710825793764449 | Shandong Tailida Motor Co., Ltd. | 2025-11 | 5100822 YBX3-80M1-4 | — | Compliant | Xuzhou Inspection and Testing Center | Zhongchuang Xinhai (Tianjin) Certification Service Co., Ltd. | | | 21 | Explosion-Proof Conduit Box | Production | Shandong Xianghua Electrical Equipment Co., Ltd. | 91371302MA3MNLQ6XC | Shandong Xianghua Electrical Equipment Co., Ltd. | 2025-09 | BHC | — | Compliant | Xuzhou Inspection and Testing Center | CQM Standards and Certification Group Co., Ltd. | | | 22 | Mine Flameproof DC Current Transformer Box | Production | Tai'an Zhengxin Electronic Technology Co., Ltd. | 91370902MA3TUW6597 | Tai'an Zhengxin Electronic Technology Co., Ltd. | 202509 | 001 HXBZ70 | — | Compliant | Xuzhou Inspection and Testing Center | Zhongchuang Xinhai (Tianjin) Certification Service Co., Ltd. | | | 23 | Ex Explosion-Proof Wall Switch | Online Sales | Lanshan District Junyuanda Lighting and Electrical Factory | 92371302MACH5MU61L | Wenzhou Songda Lighting Co., Ltd. | 2025-08 | BQM-10/I S | — | Compliant | Xuzhou Inspection and Testing Center | Zhongchuang Xinhai (Tianjin) Certification Service Co., Ltd. | | | 24 | Industrial and Commercial Purpose Point-Type Combustible Gas Detector | Online Sales | Shandong Fuxiang'an Electronic Technology Co., Ltd. | 91370104MA3QWKLX9L | Shandong Baina Electronic Equipment Co., Ltd. | 2025-09 | GTYQ-BNTLCD-3 | — | Compliant | Xuzhou Inspection and Testing Center | Fire Product Conformity Assessment Center of the Ministry of Emergency Management | | | 25 | Point-Type Gas Detector (Gas Alarm) | Online Sales | Shandong Sifute Intelligent Technology Co., Ltd. | 91370100MA3P15MA6T | Shandong Sifute Intelligent Technology Co., Ltd. | 202511 | GTYQ-STC20 | — | Compliant | Xuzhou Inspection and Testing Center | — | | | 26 | Ex Weidmueller Explosion-Proof Pressure Transmitter | Online Sales | Shandong Temailong Automation Technology Co., Ltd. | 91370112MA3RHUN08Q | Shandong Temailong Automation Technology Co., Ltd. | 2025-11 | SML-3051TG | — | Compliant | Xuzhou Inspection and Testing Center | — | |
**List of Enterprises Not Sampled in the 2025 Provincial Supervision and Sampling for Explosion-Proof Electrical Product Quality**
| No. | Enterprise Name | Sampling Status | | :--- | :--- | :--- | | 1 | Dezhou Dema Motor Co., Ltd. | Temporary production halt | | 2 | Dezhou Fulite Environmental Technology Co., Ltd. | Quantity of products for sale does not meet the detailed rules for supervision and sampling | | 3 | Dezhou Jinlei Motor Manufacturing Co., Ltd. | Quantity of products for sale does not meet the detailed rules for supervision and sampling | | 4 | Dezhou Shangyue Air Conditioning Equipment Co., Ltd. | Quantity of products for sale does not meet the detailed rules for supervision and sampling | | 5 | Dezhou Yatai Group Co., Ltd. | Quantity of products for sale does not meet the detailed rules for supervision and sampling | | 6 | Gaoyuan (Shandong) Electromechanical Equipment Co., Ltd. | Quantity of products for sale does not meet the detailed rules for supervision and sampling | | 7 | Jinan Anxing Electrical Technology Co., Ltd. | Quantity of products for sale does not meet the detailed rules for supervision and sampling | | 8 | Shandong Andaer Information Technology Co., Ltd. | Quantity of products for sale does not meet the detailed rules for supervision and sampling | | 9 | Shandong Grid Group Co., Ltd. | Quantity of products for sale does not meet the detailed rules for supervision and sampling | | 10 | Shandong Huate Magnetic and Electrical Group Co., Ltd. | Quantity of products for sale does not meet the detailed rules for supervision and sampling | | 11 | Shandong Ruitian Fan Co., Ltd. | Quantity of products for sale does not meet the detailed rules for supervision and sampling | | 12 | Shandong Tongrui Electric Co., Ltd. | Quantity of products for sale does not meet the detailed rules for supervision and sampling | | 13 | Shengli Oilfield Aokailong Petroleum Engineering Co., Ltd. | Quantity of products for sale does not meet the detailed rules for supervision and sampling | | 14 | Shengli Oilfield Shuntian Energy-Saving Technology Co., Ltd. | Quantity of products for sale does not meet the detailed rules for supervision and sampling | | 15 | Xingheng Environmental Technology Group Co., Ltd. | Quantity of products for sale does not meet the detailed rules for supervision and sampling | | 16 | Zhongda Air Conditioning Group Co., Ltd. | Quantity of products for sale does not meet the detailed rules for supervision and sampling |
Comments