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随着家用电器的发展,评茶用电茶壶煮开水已十分普遍,但它也包含着不安全的因素,一旦煮过了头,当壶内水已蒸发干,电茶壶的电器发热元件还在继续通电的情况下,即会发生爆炸,甚至引起火灾。针对这一不安全因素,如能安装定时自动切断电源的装置,即使一时疏忽而遗忘关闭电源也无关紧要,定时器会自动断开电路,可避免由于人为的通电责任事故而造成的损失。整套安全装置约需120元,其装配与使用方法如下: 一、所需电器元件整套装置,由晶体管时间继电器、交流接触器与按钮开关等元件所组成。
With the development of household appliances, tea pot teapot boiled water has been very common, but it also contains unsafe factors, once boiled over, when the water inside the pot has evaporated, electric tea pot electric heating element is still Continued energization of the case, it will explode, and even cause a fire. In view of this unsafe factor, if a device capable of automatically turning off the power at a regular time is installed, it does not matter if the power is forgotten and turned off for a moment, the timer will automatically turn off the circuit to avoid losses caused by man-made accidental power-on. The entire safety device is about 120 yuan, its assembly and use as follows: First, the required electrical components package, by the transistor time relay, AC contactor and button switch and other components.