The third quarter of 2008, Shaanxi Provincial Bureau of Quality and Technical Supervision organization of silicone tube product quality supervision and spot checks. A total of 30 enterprises spot checks, after testing, the quality of pass rate of 65%.

Shaanxi Provincial Bureau of Quality and Technical Supervision December 2, in order to protect the legitimate rights and interests of consumers and promote the healthy development of the silicone tube industry, the third quarter of 2008, Shaanxi Provincial Bureau of Quality and Technical Supervision of silicone tube product quality supervision and spot checks. A total of 30 enterprises random sample of 40 batches of samples taken, after testing, 25 batches of qualified samples, the physical quality pass rate was 65% (1 batch of samples for the unqualified). Compared with the sampling rate in 2007 (35.3%) has been greatly improved. The sampling in the province to extract 18 batches of enterprise products, testing 14 batches of qualified, the overall pass rate of 77%.

Silicone tube quality problems are the main signs of inspection, conductor resistance, insulation thickness, sheath thickness, cable diameter, tensile test before aging, mechanical properties before insulation aging, sheathing mechanical properties before the project failed.

    Unqualified signs of performance for the product did not follow the standard requirements indicate the name of the manufacturer, trademarks and other information. Conductor resistance failed to show the measured value is greater than the standard value, the failure of not only led to the voltage drop on the transmission line, the user terminal voltage is low, affecting the normal operation of electrical equipment or electrical appliances. And will make the cable heat, waste of energy, accelerate the aging of the insulation; Insulation thickness, sheath thickness failed to show the measured value is less than the standard value, reflecting the production of enterprises in order to save insulation materials, not according to the standard requirements of the organization of production; Qualified to easily make the cable in the installation, the use of damaged during the accident occurred leakage; tensile test before aging, mechanical properties before insulation aging, jacket mechanical properties before aging unqualified, reflecting the business in the production process, the use of raw materials problems, the Potential damage is the silicone tube easy to use in the role of external forces appear insulation or sheath rupture, conductor leakage and other dangerous occurrence.

    In response to the major quality problems found during the spot checks, Shaanxi Provincial Bureau of Quality and Technical Supervision has instructed the quality and technical supervision departments of all municipalities to strictly follow the relevant laws and regulations such as the Product Quality Law to handle the enterprises that fail to pass the quality check in accordance with the law, Rectification; the same time, the spot checks better quality products and their manufacturing enterprises, increase publicity efforts. I Bureau will continue to track the quality of silicone tube product testing to promote the overall quality of the industry to improve.