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随着城市快速发展,电梯老化问题成为普遍现象。据中国电梯行业协会统计,目前,我国正在运行的电梯已超300万部,是世界上拥有电梯最多的国家。按电梯平均寿命20年测算,我国已经进入电梯老化的重要时期。目前,宁波市电梯共有58594台,其中,安装使用10年以上或改造更新后又使用5年以上的老旧电梯共6918台,且以每年20%的速度递增,从
With the rapid development of the city, elevator aging has become a common phenomenon. According to the statistics of China Elevator Industry Association, at present, there are over 3 million elevators in operation in our country, and it is the country that has the largest number of elevators in the world. Calculated according to the average life expectancy of elevators 20 years, China has entered an important period of aging of elevators. At present, there are 58,594 elevators in Ningbo City, of which 6918 are old elevators that have been used for more than 10 years or have been rebuilt and updated for more than 5 years, and are increasing at an annual rate of 20%