Heard Island and McDonald Islands Travel Adapters
Type I • 230 volts • 50 Hz
Heard Island and McDonald Islands are a remote Australian external territory located in the southern Indian Ocean about halfway between Madagascar and Antarctica. The islands are uninhabited and consist largely of glaciers, volcanic landscapes, and protected wildlife habitats. Heard Island is dominated by Big Ben, an active volcanic massif that includes Mawson Peak, the highest point on Australian territory outside the mainland.
Heard Island and McDonald Islands do not have a public electrical grid. The islands are uninhabited and have no permanent infrastructure. Temporary scientific expeditions bring their own portable power sources and equipment when visits occur. The electrical system used for Australian-administered installations operates at 230 volts with a frequency of 50 Hz.
Power Plug and Travel Adapter Types Used in Heard Island and McDonald Islands
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Plug types are listed because they are encountered in at least some installations. Presence may be partial, legacy, mixed, or situational. A travel adapter, also spelled travel adaptor, changes plug fit only; a voltage converter, sometimes searched as a voltage convertor, is needed only for devices that are not dual voltage. No plug type is excluded due to limited or declining use.