. The latest device for ' preventing lightning destruction is a small, white signal. It jumps view on high tension line towers -■whenever lightning strikes, or „wlien_f.or' other reasons tli>' electrical power gets out of hand and flashes outside insulators. The whit.target is a signal for a linesman to climb the tower and look for lightruing .damage..-.-.ltis./op.erated by in struments capable of measuring in split "firiHionths--of-a second- tha--ext?a Bu*g<of power that comes over alone -when lightning strikes.
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https://paperspast.natlib.govt.nz/newspapers/CHP19301127.2.57
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Press, Volume LXVI, Issue 20096, 27 November 1930, Page 7
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75Untitled Press, Volume LXVI, Issue 20096, 27 November 1930, Page 7
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