输电线路对市话通信系统影响的防护设计

摘要

The load current of single discharger under all conditions is particularly calculated, considering the influence of transmission line in practical project on local telephone communication system and the tolerance of urban telephone communication system to power frequency impulse current. A suggestion on standardization is brought up on the allowed voltage value of dangerous effect and protection scheme.%针对实际工程中输电线路对市话通信系统的影响程度，及市话通信系统对工频冲击电流的耐受性，详细计算了各种工况下单个放电器的负荷电流。对危险影响的电压允许值、防护设计方案，提出了规范化建议。