“Automatic change-over and reclosing switchgear.”

The advantages of electricity for mining, industrial and domestic uses arc so obvious and well recognised that the main requirements necessary to make its use universal are low cost and reliability of supply. The cost of electric power on the Witwatersrand compares extremely favourably with that in other parts of the world, and a similar favourable comparison may be drawn with regard to continuity of supply, notwithstanding the severe lightning conditions which prevail on the Rand during the summer months.