In the first quarter of 2006, Anhui Province Bureau of Quality Supervision in Lu'an, Chuzhou and Chaohu three cities sampled a total of 30 sets of pump samples, after inspection, 18 qualified, the sampling pass rate of 60%, the number of unqualified group of 12, not Pass rate of 40%. As can be seen from the test results, the product quality of large and medium-sized enterprises is better, and the product quality of small enterprises (especially assembly-type enterprises) is relatively poor. The main unqualified items are grounding measures, power connections and external flexible cables and cords do not comply with safety requirements.
Soaking in the water during use of the pump, if there is no grounding device, once the leakage, can easily cause personal injury. The spot checks found that there are eight kinds of pumps without grounding device and grounding wire, or grounding device and grounding wire is only a decoration, does not work at all.
National standards: power connections and external soft cables and cords should be insulated, properly fixed, clamping, etc., inspection found 10 sets of samples of the cable is not properly fixed, clamping, it is possible to make the cable Tension generated by wear and tear, resulting in contact with the wire body, so that the pump body charged, dangerous.
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