Electrical news and engineering . 3—750 k. V. a. Transformers, Port Arthur a simple outdoor switching tower is built and a doubletransmission line leads ofif to Port Artliur as shown. The firsthalf of this line was built, by the agreement, by the PowerCompany, the remaining part by the Commission. For themost part these lines follow the highway, one on either side,but within the city limits the two pole lines are separatedfor some distance. Wooden poles are used throughout. Special provision has been made against lightningtroubles common in this district. Each pole line carrying threetransmiss
Electrical news and engineering . 3—750 k. V. a. Transformers, Port Arthur a simple outdoor switching tower is built and a doubletransmission line leads ofif to Port Artliur as shown. The firsthalf of this line was built, by the agreement, by the PowerCompany, the remaining part by the Commission. For themost part these lines follow the highway, one on either side,but within the city limits the two pole lines are separatedfor some distance. Wooden poles are used throughout. Special provision has been made against lightningtroubles common in this district. Each pole line carrying threetransmission cables, is also supplied with two protectingcables, one on the pole peak, the other on the end of the. .structural work, Iort Arthur upper pole arm. These protecting cables are grounded everyfifth pole. Unusual precautions are also being observedwithin the sub-station. Transmission is at 22,000 volts, 3-phase, 60 cycles. Cur-rent enters the station through oil switches, automaticallyoperated and supplied with overload relays and passes to ahigh tension busbar. The lightning arresters are of theEuropean type. At the present time only one bank of trans-formers is fed from the high tension bus. This consists of
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