大多数家用电器(如洗衣机、电冰箱等)的金属外壳都设置了接地装置,以防止电器内绝缘一旦损坏时发生漏电、触电事故。有些家用电器装接地线后会提高其性能,如收音机加接地线后可提高灵敏度。有人误认为电视机也可加接地线,可提高其信号接收能力,实际上这种想 Most household appliances (such as washing machines, refrigerators, etc.) are equipped with a metal enclosure of the grounding device to prevent leakage once the insulation inside the electrical damage, electric shock accident. Some home appliances will improve their performance when they are connected to ground, such as radios and ground wires to increase sensitivity. Some people mistakenly believe that television can also be added to ground, which can improve its signal reception capabilities, in fact, this kind of thinking