Chinanews.com, December 1st. The State Administration for Market Regulation issued a report on the national supervision and spot check on the quality of household gas appliances and explosion-proof electrical products in 2021. Among them, 68 batches of products were unqualified, and the unqualified detection rate was 11.5%.

  This time, we randomly inspected 594 batches of products produced by 589 companies, involving three types of household gas appliances, including household gas instant water heaters, household gas stoves, and gas heating water heaters, and three types of explosion-proof electrical appliances including explosion-proof lamps, explosion-proof motors, and explosion-proof electrical appliances. product.

Among them, two batches of explosion-proof electrical products were suspected of being produced without a license and have been handed over to the market supervision department where the company is located.

A total of 592 batches of products produced by 588 companies were inspected, and 68 batches of products were found to be unqualified. The unqualified detection rate was 11.5%.

  In terms of tracking and spot checks, 35 companies were found to be unqualified in the previous spot check. 8 companies still failed the spot check and 27 companies were qualified.

  In terms of household gas appliances, a total of 435 batches of household gas appliances produced by 431 companies were inspected in this random inspection, and 31 batches of products were found to be unqualified. The unqualified detection rate was 7.1%.

The overall unqualified discovery rates for this type of products in the past three years are 11.1%, 9.5%, and 7.1%.

Among these products, the unqualified detection rate of gas-fired water heaters is the lowest at 1.4%.

  Household gas appliances are appliances that use the heat released by gas combustion to heat food, prepare hot water, and provide heating. They can meet the needs of cooking, bathing, and heating, and are closely related to people's lives.

The spot check involved 15 provinces (cities) including Guangdong, Beijing, Tianjin, Hebei, among which 361 batches of industrial cluster Guangdong Province were spot-checked, accounting for 83.0% of the total number of spot checks, and the unqualified discovery rate in Guangdong Province was 7.8%.

The inspection items of household gas appliances are divided into safety performance indicators and use performance indicators. The safety performance indicators include the air tightness of the gas system and the carbon monoxide content in the flue gas in an airless state. The use performance indicators include thermal efficiency.

The spot check of each product is as follows.

  Household gas instantaneous water heaters: This time, a total of 137 batches of products produced by 137 enterprises in 9 provinces (municipalities) were spot-checked, and 12 batches of products were found to be unqualified. The unqualified detection rate was 8.8%, a decrease of 1.7 percentage points from the previous spot check.

The unqualified items involve flame stability, thermal efficiency, safety devices for preventing dry burning, carbon monoxide content in flue gas in an airless state, hot water production rate, grounding measures, etc.

  Household gas stoves: Randomly inspected 228 batches of products produced by 224 enterprises in 10 provinces (municipalities). Among them, 18 batches of products were unqualified. The unqualified detection rate was 7.9%, which was 3.1 percentage points lower than the previous random inspection.

The unqualified items involve heat load, dry flue gas concentration, flameout protection devices, thermal efficiency, and gas ducts.

  Gas-fired heating water heaters: 70 batches of products produced by 70 enterprises in 8 provinces (municipalities) were randomly inspected. One batch of products was unqualified. The unqualified discovery rate was 1.4%, which was a decrease of 0.6% compared with the previous random inspection.

The unqualified items involve failures of water temperature limiting devices and thermostats.

The reason for the disqualification was that the safety temperature limiter, which should be installed at the outlet end of the batch of products, was mistakenly installed at the return water end during assembly, which caused the outlet water temperature to be too high, and no installation problems were found during the factory inspection, resulting in the product disqualification.

  In terms of explosion-proof electrical products, 159 batches of explosion-proof electrical products produced by 158 companies were randomly checked this time. 157 batches were inspected and 37 batches of products were found to be unqualified. The unqualified detection rate was 23.6%. The qualified discovery rate exceeds 25%.

From 2019 to 2021, the overall unqualified detection rate for this type of product is 25.6%, 32.4%, and 23.6%.

  Explosion-proof electrical products are special products, mainly used in coal, oil and gas, petrochemical and chemical industries, and are directly related to safe production.

This time, the focus was spot-checked on safety items such as impact resistance test, explosion-proof joint surface, and enclosure pressure test.

Among the unqualified items found, the explosion-proof joint project accounted for the highest proportion, reaching 26 batches, 9 batches of impact resistance test projects, and 5 batches of shell pressure test projects.

The spot check of each product is as follows.

  Explosion-proof lamps and lanterns: 67 batches of products produced by 67 enterprises in 11 provinces (autonomous regions and municipalities) were spot-checked, and 19 batches of products were found to be unqualified. The unqualified discovery rate was 28.4%.

The unqualified items involve impact resistance test, clamping test of non-armoured cables and cables with braided coating, additional requirements for the introduction of flameproof enclosures, flameproof joints, enclosure pressure test, and maximum surface temperature.

This time, the focus was spot-checked on the production enterprises in two industrial concentration areas in Zhejiang Province and Guangdong Province, and the unqualified detection rates were 24.3% and 25.0% respectively.

  Explosion-proof motors: 24 batches of products produced by 24 companies in 7 provinces (autonomous regions and municipalities) were randomly checked. One batch was suspected of being produced without CCC certificate, which has been handed over to the market supervision department where the company is located.

23 batches of products were inspected, and 9 batches of products were found to be unqualified. The unqualified discovery rate was 39.1%. The unqualified items were impact resistance test and flameproof joint surface.

  Explosion-proof electrical appliances: 68 batches of products produced by 67 enterprises in 11 provinces (autonomous regions and municipalities) were randomly checked. One batch was suspected of being produced without CCC certificate and has been handed over to the market supervision and management department where the company is located.

67 batches of products were inspected, and 9 batches of products were found to be unqualified. The unqualified discovery rate was 13.4%.

The unqualified items involve flameproof joints, creepage distance, enclosure pressure test, impact resistance test, and maximum surface temperature.

  According to the analysis of technical institutions, the main reasons for the quality problems of explosion-proof electrical products are: First, there are many types of explosion-proof electrical products. Most of the company's product parts or accessories need to be purchased externally, and some of the suppliers’ products cannot meet the requirements of explosion-proof, and the company does not comply with the requirements. Carry out purchase inspection; second, the requirements for the processing technology of the flameproof joint surface are high, and the ability of the workers is insufficient; the third is that some companies cut corners in the production process of the product shell, resulting in insufficient shell strength; fourth, the internal electrical components are selected incorrectly or the use of inferior products is used. The product generates a large amount of heat and affects the maximum surface temperature of the product.

  The notification requires that the market supervision bureaus (departments and committees) of all provinces, autonomous regions, municipalities directly under the Central Government and Xinjiang Production and Construction Corps should do the following tasks in response to the problems found in the national supervision and random inspection of product quality:

  ——Strengthen the processing of spot check results.

In accordance with the "Product Quality Law of the People's Republic of China", "Interim Measures for the Administration of Product Quality Supervision and Spot Checks" and other regulations, handle the results of supervision and spot checks.

For unqualified products, measures such as seizures and seizures shall be taken in accordance with the law, and it is strictly forbidden for companies to leave the factory for sale.

For unqualified enterprises, clarify the rectification requirements, supervise and urge the implementation of rectification measures, and organize review in a timely manner.

Those suspected of crimes shall be transferred to the judicial organs in a timely manner.

In accordance with the law, seriously illegal and untrustworthy enterprises shall be included in the management of the list of seriously illegal and untrustworthy enterprises.

The result processing situation should be entered into the e-CQS system in a timely manner and reported to the State Administration. The State Administration will strengthen follow-up supervision and report the result processing situation in various places as appropriate.

  —— Carry out special quality rectification.

The market supervision departments of production enterprises in Guangdong Province, Zhejiang Province and other places must carry out special rectification, increase the supervision and inspection of key production enterprises in their jurisdictions, comprehensively use a variety of methods, maintain a high pressure on quality supervision, and seriously deal with quality violations.

  ——Supervise and urge the implementation of main responsibilities.

Report the unqualified products in this spot check to the local government and relevant departments of the unqualified enterprises, take effective measures to urge enterprises to implement the main responsibility for product quality and safety in accordance with the law, and guide enterprises to organize production in strict accordance with standards to ensure product quality and safety.

  ——Strengthen quality and technical assistance.

Organize relevant industry organizations and technical institutions to help companies find out the reasons in depth, propose improvement measures and solutions, and promote the improvement of industry quality.

List of unqualified products and enterprises in the national supervision and random inspection of the quality of household gas appliances and explosion-proof electrical products in 2021

Serial number

Product Category

Nominal production unit

Nominal production unit location

product name

Specification model

Production date/batch number

Major unqualified items

Inspection agency

1

Household gas instant water heater

Zhongshan Lebang Life Electric Co., Ltd.

Guangdong Province

Domestic hot water supply gas rapid water heater

JSQ30-16H536

2021-06-02

Hot water production rate

Foshan Quality Metrology Supervision and Inspection Center (National Gas Appliance Product Quality Inspection and Testing Center (Foshan))

2

Household gas instant water heater

Zhongshan Huashibao Electric Co., Ltd.

Guangdong Province

Domestic hot water supply gas rapid water heater

JSQ20-B

2021-08-05

Flame stability

Foshan Quality Metrology Supervision and Inspection Center (National Gas Appliance Product Quality Inspection and Testing Center (Foshan))

3

Household gas instant water heater

Zhongshan Guanglian Electric Co., Ltd.

Guangdong Province

Household gas instant water heater

JSQ24-G

2021-06-19

Hot water production rate

Foshan Quality Metrology Supervision and Inspection Center (National Gas Appliance Product Quality Inspection and Testing Center (Foshan))

4

Household gas instant water heater

Zhongshan Sinian Electric Appliance Co., Ltd.

Guangdong Province

Household gas instant water heater

JSQ24-RR

2021-04-12

CO content in flue gas without wind

Foshan Quality Metrology Supervision and Inspection Center (National Gas Appliance Product Quality Inspection and Testing Center (Foshan))

5

Household gas instant water heater

Zhongshan Wangmadam Electrical Appliance Co., Ltd.

Guangdong Province

Domestic hot water supply gas rapid water heater

JSQ24-12

2021-04-28

Anti-dry safety device

China Municipal Engineering North China Design and Research Institute Co., Ltd. (National Gas Appliance Quality Inspection and Testing Center)

6

Household gas instant water heater

Zhongshan Huangjue Electric Co., Ltd.

Guangdong Province

Domestic hot water supply gas rapid water heater

JSQ12-AY

2021-08-02

Thermal efficiency

China Municipal Engineering North China Design and Research Institute Co., Ltd. (National Gas Appliance Quality Inspection and Testing Center)

7

Household gas instant water heater

Zhongshan Keshuai Thermal Energy Technology Co., Ltd.

Guangdong Province

Domestic hot water supply gas rapid water heater

JSQ18-10L

2021-06-01

Thermal efficiency

Foshan Quality Metrology Supervision and Inspection Center (National Gas Appliance Product Quality Inspection and Testing Center (Foshan))

8

Household gas instant water heater

Zhongshan Golden Athens Electric Co., Ltd.

Guangdong Province

Domestic hot water supply gas rapid water heater

JSQ20-10L

2021-05-17

CO content in flue gas without wind

Foshan Quality Metrology Supervision and Inspection Center (National Gas Appliance Product Quality Inspection and Testing Center (Foshan))

9

Household gas instant water heater

Zhongshan Snow Electrical Appliance Co., Ltd.

Guangdong Province

Household gas instant water heater

JSQ25-A

2021-07-08

CO content in flue gas without wind

China Municipal Engineering North China Design and Research Institute Co., Ltd. (National Gas Appliance Quality Inspection and Testing Center)

10

Household gas instant water heater

Zhongshan Shunfeng Shunshui Electrical Appliance Co., Ltd.

Guangdong Province

Domestic gas instantaneous water heater (forced exhaust)

JSQ14-A

2021-08-01

Thermal efficiency

China Municipal Engineering North China Design and Research Institute Co., Ltd. (National Gas Appliance Quality Inspection and Testing Center)

11

Household gas instant water heater

Foshan Shunde Chrysanthemum Electric Co., Ltd.

Guangdong Province

Domestic hot water supply gas rapid water heater

JSQ28-TQD210

2021-05

CO content in flue gas without wind

China Municipal Engineering North China Design and Research Institute Co., Ltd. (National Gas Appliance Quality Inspection and Testing Center)

12

Household gas instant water heater

Guangdong Zero One Electrical Technology Co., Ltd.

Guangdong Province

Domestic hot water supply gas rapid water heater

JSQ30-16G(C)

2021-08-04

Grounding measures

China Municipal Engineering North China Design and Research Institute Co., Ltd. (National Gas Appliance Quality Inspection and Testing Center)

13

Household gas stove

Beijing Yanshan Industrial Gas Equipment Co., Ltd.

Beijing

Household gas cooker

JZT-XST02

2021-08-10

Gas pipe

Guangdong Product Quality Supervision and Inspection Institute

14

Household gas stove

Yongkang Yibang Electric Appliance Factory

Zhejiang Province

Household gas stove

JZT-1088

June 24, 2021

Carbon monoxide concentration in dry flue gas, gas duct

Guangdong Product Quality Supervision and Inspection Institute

15

Household gas stove

Linzhou Lvneng Gas Equipment Material Co., Ltd.

Henan Province

Household gas cooker

JZT-A-LN681

2021-06-21

Heat load, gas duct

Guangdong Product Quality Supervision and Inspection Institute

16

Household gas stove

Dongfeng Town, Zhongshan City Big Thumb Life Electric Appliance Manufacturing Factory

Guangdong Province

Household gas cooker

JZT-988E

2021-07-10

Thermal efficiency

Guangdong Product Quality Supervision and Inspection Institute

17

Household gas stove

Jiaozi Electrical Appliance Factory, Dongfeng Town, Zhongshan City

Guangdong Province

Household gas cooker

JZT-S68B

2021-08-08

Carbon monoxide concentration in dry flue gas

Guangdong Product Quality Supervision and Inspection Institute

18

Household gas stove

Zhongshan Dongzheng Electric Co., Ltd.

Guangdong Province

Household gas cooker

JZT-160

2021-07

Carbon monoxide concentration in dry flue gas, heat load, flameout protection device, gas duct

Guangdong Product Quality Supervision and Inspection Institute

19

Household gas stove

Zhongshan Qianjin Electric Co., Ltd.

Guangdong Province

Household gas stove

JZY-QJ8008-S

2021-07-31

Carbon monoxide concentration in dry flue gas, gas duct

Guangdong Product Quality Supervision and Inspection Institute

20

Household gas stove

Zhongshan Huaren Electric Co., Ltd.

Guangdong Province

Household gas stove

JZY-988

2021-04-23

Carbon monoxide concentration, thermal efficiency, heat load in dry flue gas

Guangdong Product Quality Supervision and Inspection Institute

21

Household gas stove

Zhongshan Jialebo Electric Appliance Co., Ltd.

Guangdong Province

Household gas cooker

JZT-A

2021-08-05

Thermal efficiency, thermal load, gas duct

Guangdong Product Quality Supervision and Inspection Institute

22

Household gas stove

Zhongshan Rongshuai Electric Co., Ltd.

Guangdong Province

Household gas cooker

JZT-R

2021-08-11

Thermal efficiency

Guangdong Product Quality Supervision and Inspection Institute

23

Household gas stove

Zhongshan Qiaopai Electric Co., Ltd.

Guangdong Province

Household gas cooker

JZT-Q

2021-08-03

Thermal efficiency

Guangdong Product Quality Supervision and Inspection Institute

24

Household gas stove

Zhongshan Yingxi Electric Co., Ltd.

Guangdong Province

Household gas stove

JZT-B

2021-01-08

Heat load

Guangdong Product Quality Supervision and Inspection Institute

25

Household gas stove

Zhongshan Aotai Electric Co., Ltd.

Guangdong Province

Household gas stove

JZY-A

2021-08-11

Thermal efficiency

Guangdong Product Quality Supervision and Inspection Institute

26

Household gas stove

Zhongshan Tianqi New Energy Technology Co., Ltd.

Guangdong Province

Household gas stove

JZT-G

2021-07-15

Thermal efficiency

Guangdong Product Quality Supervision and Inspection Institute

27

Household gas stove

Shunde District of Foshan City Hao Lian Nian Life Electric Co., Ltd.

Guangdong Province

Household gas stove

JZT-B01

2021-05-30

Thermal efficiency

Guangdong Product Quality Supervision and Inspection Institute

28

Household gas stove

Guangdong Yunzuan Intelligent Technology Co., Ltd.

Guangdong Province

Household gas stove

JZT-A

2021-07-18

Thermal efficiency

Guangdong Product Quality Supervision and Inspection Institute

29

Household gas stove

Guangdong Sijifu Gas Appliance Co., Ltd.

Guangdong Province

Household gas cooker

JZT-Q48B2008

2021-03-23

Thermal efficiency

Guangdong Product Quality Supervision and Inspection Institute

30

Household gas stove

Shunde Ronggui Yanbang Kitchen & Bathroom Electrical Appliance Factory

Guangdong Province

Household gas cooker

JZT-B

2021-06-24

Carbon monoxide concentration in dry flue gas, heat load, flameout protection device, gas duct

Guangdong Product Quality Supervision and Inspection Institute

31

Gas heating water heater

Foshan Retu Thermal Energy Technology Co., Ltd.

Guangdong Province

Gas heating water heater

L1PB20-R

2021-08-17

Water temperature limiting device, thermostat failure

Guangdong Product Quality Supervision and Inspection Institute

32

Explosion-proof lamps

Tianjin Best Explosion-proof Electric Appliance Co., Ltd.

Tianjin City

Explosion-proof linear light

BST-6260-01

2021.04

Impact test

Nanyang Explosion-proof Electrical Research Institute Co., Ltd. (National Quality Inspection and Testing Center for Explosion-proof Electrical Products)

33

Explosion-proof lamps

Shijiazhuang Liming Electronic Technology Co., Ltd.

Hebei Province

Explosion-proof LED roadway light for mine

DGS20/127L(A)

2021.04

Impact test

Shenyang Product Quality Supervision and Inspection Institute (National Low-Voltage Explosion-proof Electrical Apparatus Quality Supervision and Inspection Center (Liaoning))

34

Explosion-proof lamps

Langfang Deao Explosion-proof Electric Co., Ltd.

Hebei Province

Maintenance-free LED explosion-proof lighting

BLED9116 220V 50W

2021.7

Clamping test of non-armoured cables and cables with braided coverings, additional requirements for the introduction of flameproof enclosures, flameproof joints

Shenyang Product Quality Supervision and Inspection Institute (National Low-Voltage Explosion-proof Electrical Apparatus Quality Supervision and Inspection Center (Liaoning))

35

Explosion-proof lamps

Linfen Huace Xinguangyu Power Supply Co., Ltd.

Shanxi Province

Explosion-proof LED roadway light for mine

DGS20/127(F) 127V 20W

March 2021

Impact test

Nanyang Explosion-proof Electrical Research Institute Co., Ltd. (National Quality Inspection and Testing Center for Explosion-proof Electrical Products)

36

Explosion-proof lamps

Shanxi Laiwei Electromechanical Co., Ltd.

Shanxi Province

Explosion-proof LED locomotive lighting for mine

DGY24/24L(A) 24V 24W

April 21

Flameproof joint

Nanyang Explosion-proof Electrical Research Institute Co., Ltd. (National Quality Inspection and Testing Center for Explosion-proof Electrical Products)

37

Explosion-proof lamps

Wenzhou Chuangxin Explosion-proof Equipment Co., Ltd.

Zhejiang Province

Explosion-proof flood light

BTd51-     220V  250/400W

2020.12

Flameproof joint

Shenyang Product Quality Supervision and Inspection Institute (National Low-Voltage Explosion-proof Electrical Apparatus Quality Supervision and Inspection Center (Liaoning))

38

Explosion-proof lamps

Zhejiang Zhengan Explosion-proof Electric Co., Ltd.

Zhejiang Province

Explosion-proof LED roadway light for mine

DGS24/127L(C)

2021.8/80-21090016 

Impact resistance test, shell pressure test

Nanyang Explosion-proof Electrical Research Institute Co., Ltd. (National Quality Inspection and Testing Center for Explosion-proof Electrical Products)

39

Explosion-proof lamps

Zhejiang Hule Electrical Equipment Manufacturing Co., Ltd.

Zhejiang Province

Marine explosion-proof lighting

Tdf220-60 AC220V 60W

2021.5/22106023 

Flameproof joint

Nanyang Explosion-proof Electrical Research Institute Co., Ltd. (National Quality Inspection and Testing Center for Explosion-proof Electrical Products)

40

Explosion-proof lamps

Ningbo Yuandong Explosion-proof Equipment Co., Ltd.

Zhejiang Province

Explosion-proof LED lamps

BGD56-60 220V 60W

2021.4/01 

Flameproof joint

Nanyang Explosion-proof Electrical Research Institute Co., Ltd. (National Quality Inspection and Testing Center for Explosion-proof Electrical Products)

41

Explosion-proof lamps

Fron Electric Co., Ltd.

Zhejiang Province

Explosion-proof maintenance-free energy-saving lamps (LED)

BRE-1805C-30W AC220V 30W

2021.8/ALW24H63021805C190 

Flameproof joint

Nanyang Explosion-proof Electrical Research Institute Co., Ltd. (National Quality Inspection and Testing Center for Explosion-proof Electrical Products)

42

Explosion-proof lamps

Philips Explosion-proof Electric Co., Ltd.

Zhejiang Province

High-efficiency, energy-saving and maintenance-free LED explosion-proof lights

BAD93-60W 220V 60W

2021.6/FPD316-1

Flameproof joint, shell pressure test

Nanyang Explosion-proof Electrical Research Institute Co., Ltd. (National Quality Inspection and Testing Center for Explosion-proof Electrical Products)

43

Explosion-proof lamps

Zhejiang Zhuoyi Technology Co., Ltd.

Zhejiang Province

LED explosion-proof flood light

BZY8312-E50 AC220V 50Hz 50W

2021.8

Flameproof joint

Shenyang Product Quality Supervision and Inspection Institute (National Low-Voltage Explosion-proof Electrical Apparatus Quality Supervision and Inspection Center (Liaoning))

44

Explosion-proof lamps

Anjia Explosion-proof Technology Co., Ltd.

Zhejiang Province

Explosion-proof and maintenance-free LED lighting

AJL-III 220V  100W

2021

Clamping test of non-armoured cables and cables with braided coverings, additional requirements for the introduction of flameproof enclosures, flameproof joints

Shenyang Product Quality Supervision and Inspection Institute (National Low-Voltage Explosion-proof Electrical Apparatus Quality Supervision and Inspection Center (Liaoning))

45

Explosion-proof lamps

Maoan Explosion-proof Electric Co., Ltd.

Zhejiang Province

Explosion-proof LED roadway light for mine

DGS18/127L 18W 127V

2021.3/210227789

Impact test, flameproof joint

Nanyang Explosion-proof Electrical Research Institute Co., Ltd. (National Quality Inspection and Testing Center for Explosion-proof Electrical Products)

46

Explosion-proof lamps

Huainan Wantai Electronics Co., Ltd.

Anhui Province

Explosion-proof LED roadway light for mine

DGS18/127L(A) 127V  18W

May 2021

Impact test, flameproof joint

Nanyang Explosion-proof Electrical Research Institute Co., Ltd. (National Quality Inspection and Testing Center for Explosion-proof Electrical Products)

47

Explosion-proof lamps

Xianghua Explosion-proof Technology Co., Ltd.

Jiangxi Province

Intelligent LED explosion-proof floodlight

BED168-150W AC220V 150W

May 2021

Shell pressure test, maximum surface temperature

Nanyang Explosion-proof Electrical Research Institute Co., Ltd. (National Quality Inspection and Testing Center for Explosion-proof Electrical Products)

48

Explosion-proof lamps

Shenzhen Senbang Lighting Co., Ltd.

Guangdong Province

Explosion-proof LED platform light

SPF339  AC220V  50Hz  50W

20210815004

Shell pressure test

初检机构:南阳防爆电气研究所有限公司(国家防爆电气产品质量检验检测中心)
复检机构:沈阳产品质量监督检验院(国家低压防爆电器质量监督检验中心(辽宁))
49防爆灯具广东电力士照明科技有限公司广东省防爆灯EX011-WJ150 150W2021.08隔爆接合面沈阳产品质量监督检验院(国家低压防爆电器质量监督检验中心(辽宁))
50防爆灯具深圳市通用科技有限公司第一生产厂广东省矿用隔爆型LED巷道灯DGS36/127L(A)  127V 50Hz  36W202104抗冲击试验初检机构:南阳防爆电气研究所有限公司(国家防爆电气产品质量检验检测中心)
复检机构:沈阳产品质量监督检验院(国家低压防爆电器质量监督检验中心(辽宁))
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53防爆电机凯利达科技股份有限公司浙江省隔爆型三相异步电动机YB3-90S-4    1.1kW  380V2021.5隔爆接合面南阳防爆电气研究所有限公司(国家防爆电气产品质量检验检测中心)
54防爆电机浙江贝得防爆电机有限公司浙江省隔爆型三相异步电动机YB3-90L-2  2.2kW  380V2020年11月隔爆接合面南阳防爆电气研究所有限公司(国家防爆电气产品质量检验检测中心)
55防爆电机温州申银防爆电机有限公司浙江省隔爆型三相异步电动机YB3-80M2-4   0.75kW  380V2021.8隔爆接合面南阳防爆电气研究所有限公司(国家防爆电气产品质量检验检测中心)
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57防爆电机六安江淮电机有限公司安徽省隔爆型三相异步电动机YBX3-100L1-4 2.2kW 380V2021.4隔爆接合面南阳防爆电气研究所有限公司(国家防爆电气产品质量检验检测中心)
58防爆电机中擎电机有限公司安徽省高效率隔爆型三相异步电动机YBX3-100L-2   380V 3kW2021.8隔爆接合面南阳防爆电气研究所有限公司(国家防爆电气产品质量检验检测中心)
59防爆电机山东新南阳电机有限公司山东省高效率隔爆型三相异步电动机YBX3-80M2-4 0.75kW 380V2020.11隔爆接合面南阳防爆电气研究所有限公司(国家防爆电气产品质量检验检测中心)
60防爆电器上海坤嘉自动化科技有限公司上海市矿用隔爆兼本安型断电控制监视器KDG1/220 9~24V2021.07/27隔爆接合面南阳防爆电气研究所有限公司(国家防爆电气产品质量检验检测中心)
61防爆电器江苏三恒科技股份有限公司江苏省KDB1140/660(380)矿用隔爆型仪用变压器

KDB1140/660(380) Input voltage 1140V AC Output voltage 660/380V AC

2021.7

Creepage distance

Initial inspection organization: Nanyang Explosion-proof Electrical Research Institute Co., Ltd. (National Quality Inspection and Testing Center for Explosion-proof Electrical Products)


Re-inspection organization: Shanghai Inspection and Testing Institute for Instruments and Automation Systems Co., Ltd.

62

Explosion-proof electrical appliances

Qidong Huatong Explosion-proof Electronics Co., Ltd.

Jiangsu Province

Explosion-proof speaker

BYS-1 110V

2021.7

Shell pressure test

Nanyang Explosion-proof Electrical Research Institute Co., Ltd. (National Quality Inspection and Testing Center for Explosion-proof Electrical Products)

63

Explosion-proof electrical appliances

Xuzhou China Mining Huiding Communication Technology Co., Ltd.

Jiangsu Province

Mine explosion-proof and intrinsically safe infrared camera

KBA127H

2021.5.19

Impact test, flameproof joint

Shanghai Inspection and Testing Institute for Instruments and Automation Systems Co., Ltd.

64

Explosion-proof electrical appliances

Zhejiang Enchuang Electric Co., Ltd.

Zhejiang Province

Explosion-proof junction box

BJX/AC220/380V  100A

2021.5

Flameproof joint

Nanyang Explosion-proof Electrical Research Institute Co., Ltd. (National Quality Inspection and Testing Center for Explosion-proof Electrical Products)

65

Explosion-proof electrical appliances

Xusheng Lighting Co., Ltd.

Zhejiang Province

Explosion-proof lighting (power) distribution box

CBP  AC380V/220V  63A

2021.4

Flameproof joint

Nanyang Explosion-proof Electrical Research Institute Co., Ltd. (National Quality Inspection and Testing Center for Explosion-proof Electrical Products)

66

Explosion-proof electrical appliances

Huainan China Coal Electronics Co., Ltd.

Anhui Province

Mine explosion-proof and intrinsically safe water level controller

KXJ127

2021.7

Flameproof joint

Nanyang Explosion-proof Electrical Research Institute Co., Ltd. (National Quality Inspection and Testing Center for Explosion-proof Electrical Products)

67

Explosion-proof electrical appliances

Taian Mingan Electronic Technology Co., Ltd.

Shandong Province

Mine explosion-proof and intrinsically safe sound and light alarm

KXB127  127VAC 0.1A

2021.08

Flameproof joint

Nanyang Explosion-proof Electrical Research Institute Co., Ltd. (National Quality Inspection and Testing Center for Explosion-proof Electrical Products)

68

Explosion-proof electrical appliances

Nanyang Zhongrong Explosion-proof Electric Co., Ltd.

Henan Province

Explosion-proof junction box

CJX-400

April 2021

Maximum surface temperature

Shanghai Inspection and Testing Institute for Instruments and Automation Systems Co., Ltd.

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