住宅楼宇楼梯间的照明通常是由各户分摊电费或由单位统一支付电费,其计度即由单元总表读数减去各户用电度数决定。这里存在一个严重浪费电力的情况,即当天黑需要楼梯照明时,谁都会开灯,但走完楼梯后谁又会层层关灯呢?因而常造成楼梯照明通夜大放光明,浪费了能源,加重了国家或各 The lighting of a stairwell in a residential building is usually apportioned by individual households or by the unit to pay the electricity fee. The calculation of the staircase is determined by subtracting the total reading of the unit from the electricity consumption of each household. There is a situation in which electricity is seriously wasted, that is, when the stairs need to be illuminated on the day of the dark, everyone will turn on the lights, but whoever turns off the stairs will turn off the lights, which often causes the lighting of the stairs to shine through the night and wastes energy. Increased the country or each