Double Circuit Transmission Line Tower,400kv 132kv 33kv 500kv transmission tubular power cable tower
4. The same tower double back transmission line, is the two ends of each other for power supply, usually sometimes as a standby, such a double loop, is generally the form of ring nets, is a to B, B to a power supply mode. Also has the same tower double return tower to erect the tr.ansmission line, in order to transmit the bigger transmission power!
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st52 3 sheet for sculpture width