Analysis on Wiring Mode of Power Line's Surge Protective Device
Hu Yu · Low Voltage Apparatus · 2013
According to the alternating characteristic of lightning current through wires,this paper analysed the relationship between the length and the cross-sectional area of the wire connecting SPD and the induction voltage of it. Moreover,it compared the effect of what the single-core conductor and multiple-core conductor( or separate wires) reduce the wire resistance and then the residual voltage. In addition,it analysed the influence of the wire's residual voltage of the protected equipment in different access modes of SPD. Finally,it gived suggestion about how to select the access mode of SPD in reference of the given field condition can't meet the requirements of the specifications of the length of connecting wire.