Qianlong.com Beijing news April 11th according to the Guangzhou Municipal Administration for Industry and commerce website news, 2016, Guangzhou City Administration for Industry and Commerce Bureau commissioned Guangdong product quality supervision and Inspection Institute of electronic products in Guangzhou city circulation sales for the quality inspection, a total sample of 28 production enterprises of the 46 samples, among them, 4 the sample quality is judged to supervise the overall unqualified, unqualified material was found in 8.70%.
Among them, Jiexi county new rhyme Electronic Appliance Co. Ltd. production of "new music" multifunctional electronic piano, electronic organ of Guangdong Jiexi meilesi Electronics Factory Co. Ltd. production, active speaker of Shenzhen Microlab Electric Appliance Co., Ltd. (Huizhou Panda Electronics Group Co., Huipu Electronics Co. Ltd.) production of portable DVD player this, 4 batches of unqualified products.
The unqualified items found in this sampling include: marking and explanation; electrical clearance and creepage distance; insulation requirements; power supply side disturbance voltage; radiation disturbance; etc..
Guangzhou City Administration for Industry and Commerce has the relevant provisions on sales of substandard goods according to the "product quality law" for punishment, while urging the city to do the same specifications sellers same producer (paragraph) under the frame work of substandard goods delisting, the delisting sellers refused to fulfill my bureau will be punished according to law.
Nonconforming items and their analysis
(1) the power supply end disturbance voltage and the radiated disturbance item are not qualified.
The high frequency signal generated by electronic products when using the adapter power supply terminal via network communication, will bring the environment electromagnetic pollution, the normal work of equipment may affect other common power supply, and may have an impact on the use of other family equipment, decrease the power quality of power supply may cause serious, affecting the normal operation of other electronic the decline of power quality equipment, power supply may cause serious and even lead to abnormal operation of electrical equipment or work near failure.
(2) electrical insulation and dielectric strength (insulation requirements) are not qualified.
According to the standard requirements, the strengthening insulation of this kind of products shall be able to withstand the 3000V and 1 minute electrical resistance test. The products of a circuit and 220V power supply connection, the two circuit to provide output terminals for electronic products output terminals of battery charging, users can contact, once the circuit and the two circuit breakdown, it means that a circuit of high voltage (220V) will reach two the secondary circuit breakdown, an electric shock hazard to the user.
(3) the electrical clearance and creepage distance are not qualified.
The main transformer primary and secondary electrical clearance and creepage distance size is not enough, then the electronic circuit board of the one or two circuit between the electrical gap is too small, the dangerous live parts and accessible without sufficient isolation between (double or reinforced insulation). The clearance and creepage distance of the isolation between substandard electrical insulation system is not perfect, very easy to be broken down, which makes the output terminals accessible to the user may bring dangerous voltage, causing injuries, or to cause harm by charging equipment.
(4) signs and descriptions.
The main performance is not qualified for the rated power, rated current or not standard power adapter class II equipment "return" shaped symbol and frequency standard information, and the input power exceeds the nominal value, for English logo nameplate.