Eleven models of mobile phones failed random checks

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On June 9, 2023, the website of the Shenzhen Market Supervision and Administration Bureau released the quality supervision and random inspection results of 7 types of products including speakers in Shenzhen in 2022, involving speakers, digital players, electronic pianos, information technology equipment, small household appliances for children, table lamps, and mobile phones for the elderly. .

1. Basic situation

The spot check products are speakers, digital players, electronic organs, information technology equipment, small household appliances for children, desk lamps, and mobile phones for the elderly.

A total of 228 batches of products from 151 inspected units in Shenzhen were randomly checked this time, and 15 batches of unqualified products were found. Among them, in the field of production, 44 batches of products from 28 inspected units were randomly checked, and 1 batch of unqualified products was found; in the physical store of the circulation field, 117 batches of products from 78 inspected units were randomly checked, and 3 batches of unqualified products were found; The e-commerce platform in the circulation field randomly checked 67 batches of products from 45 inspected units, and found 11 batches of unqualified products. In the field of circulation, 62 batches of products were labeled as produced by Shenzhen enterprises, and 13 batches of unqualified products were found.

2. Analysis of spot check results

(1) Speakers and other 3 products

This time, 80 batches of products from 49 inspected units in Shenzhen were randomly checked, and 1 batch of unqualified products was found. Among them, in the circulation field, 16 batches of products were labeled as produced by Shenzhen enterprises, and no substandard products were found.

This spot check is based on standards such as “Safety Requirements for Audio, Video and Similar Electronic Equipment” (GB8898-2011), “Limits and Measurement Methods of Radio Disturbance Characteristics of Sound and Television Broadcasting Receivers and Related Equipment” (GB/T13837-2012) Requirements, focusing on “heat generation under normal working conditions”, “structural requirements for protection against electric shock”, “electric shock hazard under normal working conditions”, “electrical clearance and creepage” for three products such as speakers, digital players, and electronic pianos. 8 items including “distance”, “insulation requirements”, “mechanical strength”, “terminals”, “power supply terminal disturbance voltage/conducted emission of AC power supply port” were tested. Unqualified items include: “structural requirements for protection against electric shock”, “electrical clearance and creepage distance”.

(2) Information technology equipment

This time, 30 batches of products from 25 inspected units in Shenzhen were randomly checked, and 1 batch of unqualified products was found. Among them, in the circulation field, there were 9 batches of products labeled as produced by Shenzhen enterprises, and no substandard products were found.

This spot check is based on “Information Technology Equipment Safety Part 1: General Requirements” (GB4943.1-2011), “Radio Disturbance Limits and Measurement Methods for Information Technology Equipment” (GB/T9254-2008), “Information Technology Equipment , Multimedia Equipment and Receiver Electromagnetic Compatibility Part 1: Emission Requirements” (GB/T9254.1-2021) and other standards, focusing on “electrical insulation”, “electrical clearance, creepage distance and insulation of information technology equipment products Penetration distance”, “basic requirements for wiring, connection and power supply”, “in-line equipment”, “heat generation requirements”, “dielectric strength”, “energy efficiency (only applicable to terminal display equipment products)”, “sleep State power (only applicable to terminal display device products)”, “off-state power (only applicable to terminal display device products)”, “power terminal disturbance voltage/conducted emission of AC power port”, “radiated disturbance below 1GHz/below 1GHz Radiation emission” and other 12 items were tested. Unqualified items include: “electrical clearance, creepage distance and insulation penetration distance”, “power terminal disturbance voltage”, “radiation disturbance below 1GHz”.

(3) Small appliances for children

This time, 50 batches of products from 34 inspected units in Shenzhen were randomly checked, and 1 batch of unqualified products was found. Among them, in the circulation field, 9 batches of products were labeled as products produced by Shenzhen enterprises, and 1 batch of unqualified products was found.

This spot check is based on “Safety of Household and Similar Electrical Appliances Part 1: General Requirements” (GB4706.1-2005), “Special Requirements for Safe Liquid Heaters for Household and Similar Electrical Appliances” (GB4706.19-2008), “Special Requirements for Safety Shavers, Electric Clippers and Similar Appliances for Household and Similar Electrical Appliances” (GB4706.9-2008), “Information Technology Equipment Safety Part 1: General Requirements” (GB4943.1-2011), “900/1800MHz TDMA Digital Cellular Mobile Communication System Electromagnetic Compatibility Limits and Measurement Methods Part 1: Mobile Station and Its Auxiliary Equipment” (GB/T22450.1-2008) and other standards, focusing on milk heaters and children’s haircuts “Protection against touching live parts”, “input power and current”, “heat generation”, “leakage current and electric strength at operating temperature”, “moisture resistance”, “leakage current and electric strength” “, “abnormal operation (excluding 19.11.4)”, “stability and mechanical hazards”, “mechanical strength”, “construction”, “internal wiring”, “mains connections and external flexible cords”, “for external conductors Terminals”, “grounding measures”, “screws and connections”, “electrical clearances, creepage distances and solid insulation” and other 16 items were tested; “electrical insulation”, “electrical clearances, creepage distances” of children’s phone watches Electrical distance and insulation penetration distance”, “Basic requirements for wiring, connection and power supply”, “Plug-in equipment”, “Heating requirements”, “Touch current and protective conductor current”, “Dielectric strength”, “Radiation noise Scattered harassment”, “30MHz-1000MHz radiation continuous harassment” and other 9 items were tested. Disqualified items are: “struct”.

(4) Desk lamp

This time, 50 batches of products from 31 inspected units in Shenzhen were randomly checked, and 1 batch of unqualified products was found. Among them, in the circulation field, 10 batches of products were labeled as products produced by Shenzhen enterprises, and no substandard products were found.

This spot check is based on the requirements of “Lighting Part 1: General Requirements and Tests” (GB7000.1-2015), “Lighting Part 2-4: Special Requirements for Portable Universal Lighting” (GB7000.204-2008) and other standards , focusing on the “structure”, “creepage distance and electrical clearance”, “grounding regulations”, “external wiring and internal wiring”, “protection against electric shock”, “dustproof, solid foreign matter and waterproof”, ” Eight items including “insulation resistance and electric strength”, “heat resistance, fire resistance and tracking resistance” were tested. The unqualified items are: “structure”, “heat resistance, fire resistance and tracking resistance”.

(5) Mobile phones for the elderly

This time, 18 batches of products from 12 inspected units in Shenzhen were randomly checked, and 11 batches of unqualified products were found. The products are all labeled as produced by Shenzhen enterprises.

This spot check is based on “Information Technology Equipment Safety Part 1: General Requirements” (GB4943.1-2011), “900/1800MHz TDMA Digital Cellular Mobile Communication System Electromagnetic Compatibility Limits and Measurement Methods Part 1: Mobile Station and Its Auxiliary Equipment” (GB/T22450.1-2008) and other standards, focusing on “electrical clearance, creepage distance and insulation penetration distance”, “basic requirements for wiring, connection and power supply”, “direct plug-in Type equipment”, “heating requirements”, “radiated stray disturbance”, “conducted continuous disturbance of AC power input/output port” and other 6 items were tested. All 6 items were found to be unqualified.

Three, spot check warning

Here, we remind manufacturers and sellers in Shenzhen:

First, producers must organize production in strict accordance with laws, regulations, and national standards, and must not produce or sell unqualified products; if producers find that their products have hidden safety hazards or defects that may cause damage to human health and personal and property safety, they should Initiate defect investigations, voluntary product recalls.

Second, sellers must strictly implement the inspection and acceptance system for incoming goods, check the business qualifications of suppliers, verify product qualification certificates and product labels, take measures to ensure product quality, and must not sell unqualified products. Discontinued sale. Consumers who request to return the goods shall be responsible for the return.

 

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