农话端局接地系统探讨

农话端局接地网的不规范，降低了农话通信的可靠性。农话地线网的结构可以是联合接地方式，在现有建筑物接地电阻值较大时可另设一组辅助联合接地网。接地网的防腐处理往往被忽视，这也是接地不可靠的重要原因。预先做好防腐处理，可以延长接地网使用年限。接地体和引入线材料以及直流工作地线线径的选择也至关重要接地系统中交流中线的处理也不可小视。总之，接地系统也需要用心维护，完备的原始记录使维护工作得心应手。

Discussion on Grounded System in Rural Bureau

The non-standardization of the grounded networks in rural telecom bureaus reduces the reliability of rural communications. The topology of rural grounded networks may be in integrated mode, which can sets up another assisted integrated net if the grounded resistance is higher in the existing buildings. The anticorrosion treatment of the grounded system is usually ignored, which is also one of the key reasons for the low reliability in. the grounded. Thus, the life of the networks could be extended if the anticorrosion treatment was made in advance. In addition, it is important to select the grounded bodies, lead wires, and the dimension of DC grounded busbar. As well as, the treatment to the AC neutral line in the grounded system should not be neglected.In general, the grounded system needs carefully maintenance. The detail and complete records can make the maintenance easy.