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笔者购买了一台某外资企业生产的高级触摸式调光台灯,使用一段时间后发现该台灯存在以下三个问题:(1)用手触摸台灯外壳有时会有麻手现象,这时若用试电笔测试台灯外壳,试电笔氖泡会点亮(外壳带电)。(2)该台灯的灯泡断丝时,其控制电路的双向可控硅易被击穿损坏。(3)插上电源线而未启动台灯的情况下,有时会自动点亮。
I purchased a foreign-owned high-level production of a touch-type dimming desk lamp, the use of a period of time found that the lamp has the following three problems: (1) touch the lamp case sometimes there will be Ma hand phenomenon, then use the test Pen test lamp shell, test pen neon bulb will light (shell charged). (2) When the lamp of the lamp is broken, the bidirectional thyristor of the control circuit is easily damaged by breakdown. (3) When the power cord is plugged in and the desk lamp is not activated, it may light automatically.