WHY do different countries have different outlets?

Back in the days when the electrical system was invented and homes were electrified, inventors came up with different configurations of outlets, and appliance manufacturers adapted to them.

Meanwhile, during the technological revolution, states categorically rejected the inventions of foreign citizens so they had to come up with new shapes of outlets.

📌 In all countries, outlets have different voltages, and plugs allow you to adjust the current supply. That’s why various standards were introduced for certain countries.

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