HYTSHawaii Youth Tobacco Survey
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HYTS also supplies the Portland aluminium smelter via a double circuit 500 kV line HYTS includes a 500 kV and a 275 kV switchyard, two remote 500 kV circuit breakers to connect the two 500 kV lines from Tarrone Terminal Station and Mortlake Power Station and connections for a double circuit 275 kV line to South East Substation in South Australia.