Hello there, I'm an expert in electrical systems and standards. When it comes to the topic of voltage and its use across different countries, there's a lot to unpack. Let's dive right into the specifics of which countries use 110 volts.

Firstly, it's essential to understand that the standard voltage for household and commercial use can vary significantly from one country to another. This variation is due to historical, economic, and technological factors. The 110 volts standard is one such voltage that is used in a number of countries, and it's primarily associated with the American Wire Gauge (AWG) system.

From the reference material provided, we can see that Cuba is listed as a country that uses 110 volts. Specifically, it mentions that Cuba uses both 110 V and 220 V at a frequency of 60 Hz. This dual-voltage system allows for a broader range of electrical devices to be used within the country, accommodating both older and newer appliances.

However, it's important to note that the list provided is not exhaustive, and there may be other countries or territories that also use 110 volts. For instance, Taiwan uses a standard voltage of 110 V for household and commercial use, with a frequency of 60 Hz. Additionally, Japan and South Korea also have regions where 110 V is standard, although they predominantly use 100 V and 220 V respectively.

The use of 110 volts is not limited to these countries alone. There are other areas, such as certain parts of Canada and the United States, where 110 V or 120 V (which is very close and often grouped together in discussions about voltage standards) is standard. The reason for the slight difference between 110 V and 120 V is due to the rounding up of the actual standard voltage, which is 115 V, to a more convenient figure for marketing and consumer understanding.

It's also worth mentioning that the choice of voltage can have implications for the design and efficiency of electrical devices. For example, appliances designed for 110 V may not work as efficiently on 220 V, and vice versa. This is why it's crucial for manufacturers to design their products to meet the specific voltage requirements of the markets they intend to serve.

In conclusion, while the list provided gives us a starting point, the reality of voltage standards is more complex and varied. Countries may have multiple voltage standards, and regions within a country can also differ. Understanding these standards is critical for anyone involved in the design, distribution, or use of electrical equipment.

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Plug, socket & voltage by countryCountry / state / territorySingle-phase voltage (volts)Frequency (hertz)Costa Rica120 V60 HzC?te d'Ivoire (Ivory Coast)220 V50 HzCroatia230 V50 HzCuba110 V / 220 V60 Hz117 more rowsread more >>