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2022-09-21
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Shenzhen market supervision bureau: three batches of residual current operated circuit breakers are unqualified

China Quality News on March 13, the official of Shenzhen market supervision and Administration Bureau reported the quality supervision and spot check results of residual current operated circuit breakers with overcurrent protection in 2018. According to the report, in the fourth quarter of 2018, Shenzhen Market Supervision Administration organized product quality supervision and random inspection of residual current operated circuit breakers with overcurrent protection produced and sold in Shenzhen. A total of 18 batches of products produced and sold by 14 enterprises were sampled, and 3 batches of unqualified samples were found in the inspection, and the discovery rate of unqualified products was 16.7%

this spot check is based on residual current operated circuit breakers with overcurrent protection for household and similar purposes (RCBO) Part 1: General rules (gb/t16917) Residual current operated circuit breakers with overcurrent protection for household and similar purposes (RCBO) - Part 22: applicability of general rules to RCBO whose action function is related to supply voltage (gb/t16917.) The "abnormal heat resistance and fire resistance test; temperature rise test; verification of action characteristics and rated residual making and breaking capacity under residual current conditions; verification of action characteristics under overcurrent conditions" and other items of residual current operated circuit breaker with overcurrent protection were tested

in view of the product quality problems found in the random inspection, the Bureau has dealt with the enterprises producing and selling unqualified products in accordance with the provisions of relevant laws and regulations. Now our bureau has decided to publish the results of this supervision and random inspection in accordance with the regulations of the Shenzhen Special Economic Zone on the administration of product quality

consumers should pay attention to the following points when purchasing residual current operated circuit breaker products:

1 When choosing products, you should choose products with CCC certification mark and operation manual. The operation manual and product identification should include the name and address of the manufacturer, product name, model and specification, short-circuit capacity, implemented product standards, precautions and certificate of conformity

there will be more layers in the process of composite extrusion Products with correct specifications should be selected according to the occasion of use. It mainly considers the voltage level of the protected line and equipment, the current during normal operation of the line, and the possible short-circuit current in case of short-circuit fault of the line and equipment

3. When installing and using, you must carefully read the operation manual and install and use it according to the requirements of the manual

4. When purchasing in large quantities, e-mail:amyxiang@ jenniferfang@ can randomly sample and send it to a qualified testing institution for inspection to ensure the quality of the purchased products

list of products and enterprises of unqualified items found in random inspection

serial number name of the inspected unit in the jurisdiction name of the sample name nominal trademark model specification production date (nominal) name of the production unit report conclusion unqualified item 1 leakage circuit breaker of Lixin low voltage switching business department, Longhua street, Longhua District, Shenzhen - dz47le-63 C25 1p+n2018 Yueqing Lantai electrical switchgear factory unqualified verification of rated residual making and breaking capacity (I △ m) 2 Bao'an District Shenzhen Bao'an District Xin'an heshengtong building materials firm leakage circuit breaker - dz47le-63 C25 1p+n Zhejiang Demin Electric Co., Ltd. unqualified verification rated residual making and breaking capacity (I △ m) 3 Guangming District Shenzhen Guangming New Area Gongming xinhuatong electric appliance store residual current operated circuit breaker - dz47le-63 C63 2p Huatong machine and driven instruments Development of the Machinery Industry Electric Co., Ltd. unqualified verification rated residual making and breaking capacity (I △ m) random inspection did not find unqualified items products and enterprise list

serial number name of the inspected unit in the jurisdiction name of the sample nominal trademark model specification production date (nominal) Production unit name report conclusion 1 Guangming District Shenzhen Taiyong Electric Technology Co., Ltd. Guangming branch leakage circuit breaker - mb1l-63 C20 1p+n Shenzhen Taiyong Electric Technology Co., Ltd. Guangming branch is qualified 2 Guangming District Shenzhen Taiyong Electric Technology Co., Ltd. reaches all the required mechanical properties while the company Guangming branch leakage circuit breaker - mb2lt-63 C20 1p+n Shenzhen Taiyong Electric Technology Co., Ltd. Guangming branch is combined Ge 3 Nanshan District Shenzhen Manton Technology Co., Ltd. leakage circuit breaker - S3 Zn C63 2p Shenzhen Manton Technology Co., Ltd. qualified 4 Guangming District Shenzhen Ruizhi Power Co., Ltd. leakage circuit breaker - rzb2l-63/1n C20 1p+n Shenzhen Ruizhi Power Co., Ltd. qualified 5 Longhua District Shenzhen Longhua New Area Longhua Hongxing lighting and plumbing business department leakage circuit breaker - zble-63 C63 1p+n OPP lighting appliances (Zhongshan) Limited company qualified 6 Longgang District Shenzhen Longgang District Jinyang pneumatic hydraulic firm small leakage circuit breaker - tgb1nle-32 C32 1p+n Zhejiang Tianzheng Electric Co., Ltd. qualified 7 Bao'an District Shenzhen Xin'an Ningbo Jinhai relay business department residual current operated circuit breaker - gsh201 C10 1p+n Beijing ABB Low Voltage Electrical Co., Ltd. qualified 8 Bao'an District Shenzhen Bao'an District Xin'an heshengtong building materials firm residual current operated circuit breaker - 5S U9 Cr20 C20 1p+n Shanghai Siemens Line Protection System Co., Ltd. is qualified 9 Baoan District Shenzhen Shajing xinhuatong electrical appliance line residual current operated circuit breaker - nxble-32 C10 1p+n Zhejiang Zhengtai Electrical Appliance Co., Ltd. is qualified 10 Baoan District Shenzhen Shajing xinhuatong electrical appliance line residual current operated circuit breaker - mgnea9c C16 1p+n Shanghai Schneider low voltage terminal Electrical Appliance Co., Ltd. is qualified 11 Baoan District Shenzhen Bao'an District Xin'an Shengfa hardware and electrical store leakage circuit breaker - j65l-63 C16 1p+n Guangdong Junlang Songtian Electric Appliance Co., Ltd. qualified 12 Baoan District Shenzhen Shajing South China Chint electric appliance sales department residual current operated circuit breaker with overcurrent protection - bv DN C32 1p+n Mitsubishi Electric Dalian Machine Co., Ltd. qualified 13 Guangming District Shenzhen shenxintai electric machine Co., Ltd. residual current operated circuit breaker - dz47sle C32 1p+n Delixi Electric Co., Ltd The company is qualified. 14 Guangming District Shenzhen Guangming New Area Gongming Saida electric appliance firm residual current operated circuit breaker - DZ47LE-32 C32 1p+n Zhejiang Zhengtai Electric Appliance Co., Ltd. is qualified. 15 Guangming District Shenzhen shenxintai electric electromechanical Co., Ltd. residual current operated circuit breaker - ls8dpn vigi C16 1p+n Wuhu Schneider power distribution Appliance Manufacturing Co., Ltd. is qualified

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