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目前大容量47型自动电話机械室中装有双层总配线架,架子很高,不便于日常维修工作。为了解决这个問题,电务設計事务所参照現场单位的经驗进行了滑梯制造設計,文件經电务局批准后即可試行安装使用。滑梯长度与总配线架的高度(3460毫米)相适应,装用时与地面傾斜60度。梯宽40厘米,共作成12步,每步高22厘米。梯身由硬木制成。滑梯上部有两个滑轮压在与总配线架连接的扁铁上,扁铁两端设有挡板以防梯子滑出轨道。滑梯下侧利用总配线架下部装设的
At present, the large-capacity 47-type automatic telephone machine room is equipped with a double-layer main distribution frame which is very tall and inconvenient for daily maintenance work. In order to solve this problem, the electrical design firm made the slides manufacturing design with reference to the experience of the on-site unit. The documents were approved for trial installation by the electric service bureau. The length of the slide is adapted to the height of the main distribution frame (3460 mm) and tilted 60 degrees to the ground when installed. Ladder width 40 cm, a total of 12 steps, 22 cm high each step. The ladder body is made of hardwood. The upper part of the slide has two pulleys pressed against a flat iron connected to the main distribution frame, and baffles are provided at both ends of the flat iron to prevent the ladder from sliding out of the track. The lower part of the slide uses the lower part of the main distribution frame