在日常生活中，很多家庭会遇到家里的灯突然不亮，都会去先看开关是否失灵，我们要先排查总开关及照明一路的空开是否跳闸或者松动，后排查开关按钮接线处是否松动，当发现没有问题后，我们可以借个高梯（家里有梯子的就很方便了），关掉家里总开关，找个帮手帮忙扶梯子及照明应对突发情况，换一个新的灯泡，逆时针旋转，将旧灯泡拧下来，新的灯泡顺时针旋转，拧上去，后将家里的总开关推上去。
灯亮的话就说明家里的灯不行了，到了换的时刻了，灯的种类也分好几种，这里就不多说了，留下一点期待
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