Tanzania.

230 V · 50 Hz on Type G, Type D.

Tanzania — the IEC lists it as the United Republic of Tanzania — runs 230 V at 50 Hz with British-pattern Type G as the modern standard and round-pin Type D lingering in older buildings. A UK-style adapter covers hotels and new construction; a Type D adapter earns its keep elsewhere.

The voltage window

A nominal 230 V supply may legitimately sit anywhere between 207 and 253 V (±10%). Dual-voltage gear (marked 100–240 V) shrugs at all of it.

Grid facts verified against IEC World Plugs — Tanzania. Prose is our own.

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Pack an adapter — Tanzania runs 230 V 50 Hz on Type G, Type D — and your 120 V appliances need to be dual-voltage or transformed, adapter or not.

Type A needs an adapter
Tanzania's Type G / Type D sockets don't take a Type A plug.
the full story
Type B needs an adapter
Tanzania's Type G / Type D sockets don't take a Type B plug.
the full story

Faces drawn to scale from pin dimensions · verdicts are physical fit + voltage math, not safety advice — when in doubt, ask the hardware store, not the internet.