AN INSULATOR CAPABLE OF IMPROVING THE ELECTRICAL STRENGTH OF EXTERNAL INSULATION

摘要

An insulator capable of improving the electrical strength of external insulation. An upper barrier(1) and a lower barrier(2) are arranged outside an upper electrode(8) and a lower electrode(9) of the insulator. A middle barrier(3) is arranged outside cascading electrodes of an insulator string. An upper ring barrier and a lower ring barrier(5) are arranged outside an upper equalizing ring and a lower equalizing ring(11) of the insulator which has the upper equalizing ring(10) and the lower equalizing ring(11). An iron tower barrier and a transmission line barrier are arranged nearby an iron tower(12) and transmission lines close to the insulator.