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|\在知乎中的一个答案里引导到了这个网站： http://www.school-for-champions.com/science/ac_world_volt_freq_list.htm
下面列举了世界上超过200个国家的电压等级和频率，大部分使用交流电220-240V，其他的在100-120VAC之间。像美国等一下国家使用两种电压等级(120/240VAC)。43个国家使用的是60Hz交流频率，其他的是50Hz，这里做个记录
CountryVoltageFrequencyAfghanistan220V50HzAlbania230V50HzAlgeria230V50HzAmerican Samoa120V60HzAndorra230V50HzAngola220V50HzAnguilla110V60HzAntigua230V60HzArgentina220V50HzArmenia230V50HzAruba127V60HzAustralia240V50HzAustria230V50HzAzerbaijan220V50HzAzores230V50HzBahamas120V60HzBahrain230V50HzBalearic Islands230V50HzBangladesh220V50HzBarbados115V50HzBelarus230V50HzBelgium230V50HzBelize110/220V60HzBenin220V50HzBermuda120V60HzBhutan230V50HzBolivia230V50HzBosnia230V50HzBotswana230V50HzBrazil110-220V60HzBrunei240V50HzBulgaria230V50HzBurkina Faso220V50HzBurundi220V50Cambodia230V50HzCameroon220V50HzCanada120V60HzIslands230V50HzCape Verde230V50HzCayman Islands120V60HzCentral Africa220V50HzChad220V50HzChannel Islands230V50HzChile220V50HzChina220V50HzColombia110V60HzComoros220V50HzCongo (Zaire)220V50HzCook Islands240V50HzCosta Rica120V60HzCôte d’Ivoire(Ivory Coast)220V50HzCroatia230V50HzCuba110/220V60HzCyprus230V50HzCzech Republic230V50HzDenmark230V50HzDjibouti220V50HzDominica230V50HzDominican Republic110V60HzEast Timor220V50HzEcuador127V60HzEgypt220V50HzEl Salvador115V60HzEquatorial Guinea220V50HzEritrea230V50HzEstonia230V50HzEthiopia220V50HzFaeroe Islands230V50HzFalkland Islands240V50HzFiji240V50HzFinland230V50HzFrance230V50HzFrench Guyana220V50HzGaza230V50HzGabon220V50HzGambia230V50HzGermany230V50HzGhana230V50HzGibraltar230V50HzGreece230V50HzGreenland230V50HzGrenada230V50HzGuadeloupe230V50HzGuam110V60HzGuatemala120V60HzGuinea220V50HzGuinea-Bissau220V50HzGuyana240V60HzHaiti110V60HzHonduras110V60HzHong Kong220V50HzHungary230V50HzIceland230V50HzIndia240V50HzIndonesia230V50HzIran230V50HzIraq230V50HzIreland (Eire)230V50HzIsle of Man230V50HzIsrael230V50HzItaly230V50HzJamaica110V50HzJapan100V50/60HzJordan230V50HzKenya240V50HzKazakhstan220V50HzKiribati240V50HzKorea, South220V60HzKuwait240V50HzKyrgyzstan220V50HzLaos230V50HzLatvia230V50HzLebanon230V50HzLesotho220V50HzLiberia120V60HzLibya127/230V50HzLithuania230V50HzLiechtenstein230V50HzLuxembourg230V50HzMacau220V50HzMacedonia230V50HzMadagascar127/220V50HzMadeira230V50HzMalawi230V50HzMalaysia240V50HzMaldives230V50HzMali220V50HzMalta230V50HzMartinique220V50HzMauritania220V50HzMauritius230V50HzMexico127V60HzMicronesia120V60HzMoldova230V50HzMonaco230V50HzMongolia230V50HzMontserrat Islands230V60HzMorocco220V50HzMozambique220V50HzMyanmar (Burma)230V50HzNamibia220V50HzNauru240V50HzNepal230V50HzNetherlands230V50HzNetherlands Antilles127/220V50HzNew Caledonia220V50HzNew Zealand230V50HzNicaragua120V60HzNiger220V50HzNigeria240V50HzNorway230V50HzOkinawa100V60HzOman240V50HzPakistan230V50HzPalmyra Atoll120V60HzPanama110V60HzPapua New Guinea240V50HzParaguay220V50HzPeru220V60HzPhilippines220V60HzPoland230V50HzPortugal230V50HzPuerto Rico120V60HzQatar240V50HzRéunion Island230V50HzRomania230V50HzRussian Federation230V50HzRwanda230V50HzSt. Kitts & Nevis Islands230V60HzSt. Lucia Island240V50HzSt. Vincent Island230V50HzSaudi Arabia127/220V60HzSenegal230V50HzSerbia & Montenegro230V50HzSeychelles240V50HzSierra Leone230V50HzSingapore230V50HzSlovakia230V50HzSlovenia230V50HzSomalia220V50HzSouth Africa230V50HzSpain230V50HzSri Lanka230V50HzSudan230V50HzSuriname127V60HzSwaziland230V50HzSweden230V50HzSwitzerland230V50HzSyria220V50HzTahiti110/220V60HzTajikistan220V50HzTaiwan110V60HzTanzania230V50HzThailand220V50HzTogo220V50HzTonga240V50HzTrinidad & Tobago115V60HzTunisia230V50HzTurkey230V50HzTurkmenistan220V50HzUganda240V50HzUkraine230V50HzUnited Arab Emirates220V50HzUnited Kingdom230/240V50HzUnited States120/240V60HzUruguay220V50HzUzbekistan220V50HzVenezuela120V60HzVietnam220V50HzVirgin Islands110V60HzWestern Samoa230V50HzYemen230V50HzZambia230V50HzZimbabwe220V50Hz
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