Voltage and frequency parameters of industrial electricity (three-phase electricity) in various countries around the world
As laser cladding equipment products are exported more and more, different voltages in different countries require customized power supply devices. This article lists the three-phase voltages and frequencies around the world.
Please note that since three-phase electricity is rarely used for household purposes, the following table is only relevant to electricians, electrical engineers and other technicians.
| No. | country / region | Three-phase electricity (industrial voltage) | Frequency (Hz) | Number of wires (excluding ground wire) |
| 1 | Abu Dhabi | 400 V | 50Hz | 3,4 |
| 2 | Afghanistan | 380 V | 50Hz | 4 |
| 3 | Albania | 400 V | 50Hz | 4 |
| 4 | Algeria | 400 V | 50Hz | 4 |
| 5 | American Samoa | 208 V | 60Hz | 3,4 |
| 6 | Andorra | 400 V | 50Hz | 3,4 |
| 7 | Angola | 380 V | 50Hz | 4 |
| 8 | Anguilla | 120/208 V 127/220 V 240/415 V | 60Hz | 3,4 |
| 9 | Antigua and Barbuda | 400 V | 60Hz | 3,4 |
| 10 | Argentina | 380 V | 50Hz | 3,4 |
| 11 | Armenia | 400 V | 50Hz | 4 |
| 12 | Aruba | 220V | 60Hz | 3,4 |
| 13 | Australia | 400 V | 50Hz | 3,4 |
| 14 | Austria | 400 V | 50Hz | 3,4 |
| 15 | Azerbaijan | 380 V | 50Hz | 4 |
| 16 | Azores | 400 V | 50Hz | 3,4 |
| 17 | Bahamas | 208 V | 60Hz | 3,4 |
| 18 | Bahrain | 400 V | 50Hz | 3,4 |
| 19 | Balearic Islands | 400 V | 50Hz | 3,4 |
| 20 | Bangladesh | 380 V | 50Hz | 3,4 |
| 21 | Barbados | 200 V | 50Hz | 3,4 |
| 22 | Belarus | 380 V | 50Hz | 4 |
| 23 | Belgium | 400 V | 50Hz | 3,4 |
| 24 | Belize | 190 V 380 V | 60Hz | 3,4 |
| 25 | Benin | 380 V | 50Hz | 4 |
| 26 | Bermuda | 208 V | 60Hz | 3,4 |
| 27 | Bhutan | 400 V | 50Hz | 4 |
| 28 | Bolivia | 400 V | 50Hz | 4 |
| 29 | Bonaire | 220V | 50Hz | 3,4 |
| 30 | Bosnia and Herzegovina | 400 V | 50Hz | 4 |
| 31 | Botswana | 400 V | 50Hz | 4 |
| 32 | Brazil | 220/380 V | 60Hz | 3,4 |
| 33 | British Virgin Islands | 190 V | 60Hz | 3,4 |
| 34 | Brunei | 415 V | 50Hz | 4 |
| 35 | Bulgaria | 400 V | 50Hz | 4 |
| 36 | Burkina Faso | 380 V | 50Hz | 4 |
| 37 | Burma (Myanmar) | 400 V | 50Hz | 4 |
| 38 | Burundi | 380 V | 50Hz | 4 |
| 39 | Cambodia | 400 V | 50Hz | 4 |
| 40 | Cameroon | 380 V | 50Hz | 4 |
| 41 | Canada | 120/208 V 240 V 480 V 347/600 V | 60Hz | 3,4 |
| 42 | Canary Islands | 400 V | 50Hz | 3,4 |
| 43 | Cape Verde (Portuguese: Cabo Verde) | 400 V | 50Hz | 3,4 |
| 44 | Cayman Islands | 240V | 60Hz | 3 |
| 45 | Central African Republic | 380 V | 50Hz | 4 |
| 46 | Chad | 380 V | 50Hz | 4 |
| 47 | Channel Islands (Guernsey and Jersey) | 400 V | 50Hz | 4 |
| 48 | Chile | 380 V | 50Hz | 3,4 |
| 49 | China Mainland | 380 V | 50Hz | 3,4 |
| 50 | China Hongkong | 380 V | 50Hz | 3,4 |
| 51 | China Macao | 380 V | 50Hz | 3 |
| 52 | China Taiwan | 220V | 60Hz | 4 |
| 53 | Colombia | 220 V 440 V | 60Hz | 3,4 |
| 54 | Comoros | 380 V | 50Hz | 4 |
| 55 | Congo – Kinshasa (Democratic Republic of Congo) | 380 V | 50Hz | 3,4 |
| 56 | Congo – Brazzaville (Republic of the Congo) | 400 V | 50Hz | 3,4 |
| 57 | Cook Island | 415 V | 50Hz | 3,4 |
| 58 | costa rica | 240V | 60Hz | 3,4 |
| 59 | Côte d’Ivoire(Ivory Coast) | 380 V | 50Hz | 3,4 |
| 60 | Croatia | 400 V | 50Hz | 4 |
| 61 | Cuba | 190 V 440 V | 60Hz | 3 |
| 62 | Curacao | 220 V 380 V | 50Hz | 3,4 |
| 63 | Cyprus | 400 V | 50Hz | 4 |
| 64 | Czechia | 400 V | 50Hz | 3,4 |
| 65 | Denmark | 400 V | 50Hz | 3,4 |
| 66 | Djibouti | 380 V | 50Hz | 4 |
| 67 | Dominican | 400 V | 50Hz | 4 |
| 68 | Dominican Republic | 120/208 V 277/480 V | 60Hz | 3,4 |
| 69 | Dubai (not a country, but the largest city in the United Arab Emirates) | 400 V | 50Hz | 3,4 |
| 70 | East Timor | 380 V | 50Hz | 4 |
| 71 | Ecuador | 208 V | 60Hz | 3,4 |
| 72 | Egypt | 380 V | 50Hz | 3,4 |
| 73 | El Salvador | 200 V | 60Hz | 3 |
| 74 | England/Britain（U.K.） | 400 V | 50Hz | 4 |
| 75 | Equatorial Guinea | / | / | / |
| 76 | Eritrea | 400 V | 50Hz | 4 |
| 77 | Estonia | 400 V | 50Hz | 4 |
| 78 | Ethiopia | 380 V | 50Hz | 4 |
| 79 | Faroe Islands | 400 V | 50Hz | 3,4 |
| 80 | Falkland Islands | 415 V | 50Hz | 4 |
| 81 | Fiji | 415 V | 50Hz | 3,4 |
| 82 | Finland | 400 V | 50Hz | 3,4 |
| 83 | France | 400 V | 50Hz | 4 |
| 84 | French Guiana | 380 V | 50Hz | 3,4 |
| 85 | Gabon (Gabonese Republic) | 380 V | 50Hz | 4 |
| 86 | Gambia | 400 V | 50Hz | 4 |
| 87 | Gaza | 400 V | 50Hz | 4 |
| 88 | Georgia | 380 V | 50Hz | 4 |
| 89 | Germany | 400 V | 50Hz | 4 |
| 90 | Ghana | 400 V | 50Hz | 3,4 |
| 91 | Gibraltar | 400 V | 50Hz | 4 |
| 92 | United Kingdom (GB) | 400 V | 50Hz | 4 |
| 93 | Greece | 400 V | 50Hz | 4 |
| 94 | Greenland | 400 V | 50Hz | 3,4 |
| 95 | Greneda | 400 V | 50Hz | 4 |
| 96 | Guadeloupe | 400 V | 50Hz | 3,4 |
| 97 | Guam | 190 V | 60Hz | 3,4 |
| 98 | Guatemala | 208 V | 60Hz | 3,4 |
| 99 | Guinea | 380 V | 50Hz | 3,4 |
| 100 | Guinea-Bissau | 380 V | 50Hz | 3,4 |
| 101 | Guyana | 190 V | 60Hz | 3,4 |
| 102 | Haiti | 190 V | 60Hz | 3,4 |
| 103 | Holland (formally Netherlands) | 400 V | 50Hz | 3,4 |
| 104 | Honduras | 208 V 230 V 240 V 460 V 480 V | 60Hz | 3,4 |
| 105 | Hungary | 400 V | 50Hz | 3,4 |
| 106 | Iceland | 400 V | 50Hz | 3,4 |
| 107 | India | 400 V | 50Hz | 4 |
| 108 | Indonesia | 400 V | 50Hz | 4 |
| 109 | Iran | 400 V | 50Hz | 3,4 |
| 110 | Iraq | 400 V | 50Hz | 4 |
| 111 | Ireland | 400 V | 50Hz | 4 |
| 112 | Ireland, North | 400 V | 50Hz | 4 |
| 113 | Isle of Man | 400 V | 50Hz | 4 |
| 114 | Israel | 400 V | 50Hz | 4 |
| 115 | Italy | 400 V | 50Hz | 4 |
| 116 | Jamaica | 190 V | 50Hz | 3,4 |
| 117 | Japan | 200 V | 50 Hz / 60 Hz | 3 |
| 118 | Jordan | 400 V | 50Hz | 3,4 |
| 119 | Kazakhstan | 380 V | 50Hz | 3,4 |
| 120 | Kenya | 415 V | 50Hz | 4 |
| 121 | Kiribati | / | / | / |
| 122 | North Korea | 380 V | 50Hz | 3,4 |
| 123 | South Korea | 380 V | 60Hz | 4 |
| 124 | Kosovo | 230 V 400 V | 50Hz | 3 |
| 125 | Kuwait | 415 V | 50Hz | 4 |
| 126 | Kyrgyzstan | 380 V | 50Hz | 3,4 |
| 127 | Laos | 400 V | 50Hz | 4 |
| 128 | Latvia | 400 V | 50Hz | 4 |
| 129 | Lebanon | 400 V | 50Hz | 4 |
| 130 | Lesotho | 380 V | 50Hz | 4 |
| 131 | Liberia | 208 V | 60Hz | 3,4 |
| 132 | Libya | 400 V | 50Hz | 4 |
| 133 | Liechtenstein | 400 V | 50Hz | 4 |
| 134 | Lithuania | 400 V | 50Hz | 4 |
| 135 | Luxembourg | 400 V | 50Hz | 4 |
| 136 | Macedonia, North | 400 V | 50Hz | 4 |
| 137 | Madagascar | 380 V | 50Hz | 3,4 |
| 138 | Madeira | 400 V | 50Hz | 3,4 |
| 139 | Malawi | 400 V | 50Hz | 3,4 |
| 140 | Malaysia | 415 V | 50Hz | 4 |
| 141 | Maldives | 400 V | 50Hz | 4 |
| 142 | Mali | 380 V | 50Hz | 3,4 |
| 143 | Malta | 400 V | 50Hz | 4 |
| 144 | Marshall Islands | / | / | / |
| 145 | Martinique | 380 V | 50Hz | 3,4 |
| 146 | mauritania | 220V | 50Hz | 3,4 |
| 147 | Mauritius | 400 V | 50Hz | 4 |
| 148 | Mayotte | / | / | / |
| 149 | Mexico | 220 V 480 V | 60Hz | 3,4 |
| 150 | Federated States of Micronesia | / | / | / |
| 151 | Moldova | 400 V | 50Hz | 4 |
| 152 | Monaco | 400 V | 50Hz | 4 |
| 153 | Mongolia | 400 V | 50Hz | 4 |
| 154 | Montenegro | 400 V | 50Hz | 3,4 |
| 155 | Montserrat | 400 V | 60Hz | 4 |
| 156 | Morocco | 380 V | 50Hz | 4 |
| 157 | Mozambique | 380 V | 50Hz | 4 |
| 158 | Myanmar (formerly Burma) | 400 V | 50Hz | 4 |
| 159 | Namibia | 380 V | 50Hz | 4 |
| 160 | Nauru | 415 V | 50Hz | 4 |
| 161 | Nepal | 400 V | 50Hz | 4 |
| 162 | New Caledonia | 380 V | 50Hz | 3,4 |
| 163 | New Zealand | 400 V | 50Hz | 3,4 |
| 164 | Nicaragua | 208 V | 60Hz | 3,4 |
| 165 | Niger | 380 V | 50Hz | 4 |
| 166 | Nigeria | 415 V | 50Hz | 4 |
| 167 | Northern Ireland | 400 V | 50Hz | 4 |
| 168 | North Macedonia | 400 V | 50Hz | 4 |
| 169 | Norway | 230 V 400 V | 50Hz | 3,4 |
| 170 | Oman | 415 V | 50Hz | 4 |
| 171 | Pakistan | 400 V | 50Hz | 3 |
| 172 | Palau | 208 V | 60Hz | 3 |
| 173 | Panama | 240V | 60Hz | 3 |
| 174 | Papua New Guinea | 415 V | 50Hz | 4 |
| 175 | Paraguay | 380 V | 50Hz | 4 |
| 176 | Peru | 220V | 60Hz | 3 |
| 177 | Philippines | 380 V | 60Hz | 3 |
| 178 | Pitcairn Islands | / | / | / |
| 179 | Poland | 400 V | 50Hz | 4 |
| 180 | Portugal | 400 V | 50Hz | 3,4 |
| 181 | Puerto Rico | 480V | 60Hz | 3,4 |
| 182 | Qatar | 415 V | 50Hz | 3,4 |
| 183 | Romania | 400 V | 50Hz | 4 |
| 184 | Russia (officially the Russian Federation) | 380 V | 50Hz | 4 |
| 185 | Rwanda | 400 V | 50Hz | 4 |
| 186 | Saba | / | / | / |
| 187 | Saint Barthelemy (also informally known as Saint Barth or Saint Barth) | / | / | / |
| 188 | Saint Kitts and Nevis (formally the Federation of Saint Christopher and Nevis) | 400 V | 60Hz | 4 |
| 189 | saint lucia | 400 V | 50Hz | 4 |
| 190 | St. Martin | 220V | 60Hz | 3,4 |
| 191 | St. Helena | / | / | / |
| 192 | Sint Eustatius | 220V | 60Hz | 3,4 |
| 193 | Saint Vincent and the Grenadines | 400 V | 50Hz | 4 |
| 194 | Samoa | 400 V | 50Hz | 3,4 |
| 195 | san marino | 400 V | 50Hz | 4 |
| 196 | Sao Tome and Principe | 400 V | 50Hz | 3,4 |
| 197 | Saudi Arabia | 400 V | 60Hz | 4 |
| 198 | Scotland | 400 V | 50Hz | 4 |
| 199 | Senegal | 400 V | 50Hz | 3,4 |
| 200 | Serbia | 400 V | 50Hz | 3,4 |
| 201 | Seychelles | 240V | 50Hz | 3 |
| 202 | Sierra Leone | 400 V | 50Hz | 4 |
| 203 | Singapore | 400 V | 50Hz | 4 |
| 204 | Slovakia | 400 V | 50Hz | 4 |
| 205 | Slovenia | 400 V | 50Hz | 3,4 |
| 206 | Solomon Islands | / | / | Slovenia |
| 207 | Somali | 380 V | 50Hz | 3,4 |
| 208 | Somaliland | 380 V | 50Hz | 3,4 |
| 209 | South Africa | 400 V | 50Hz | 3,4 |
| 210 | South Sudan | 400 V | 50Hz | 4 |
| 211 | Spain | 400 V | 50Hz | 3,4 |
| 212 | Sri Lanka | 400 V | 50Hz | 4 |
| 213 | Sudan | 400 V | 50Hz | 4 |
| 214 | Surinam | 220 V 400 V | 60Hz | 3,4 |
| 215 | Swaziland | 400 V | 50Hz | 4 |
| 216 | Sweden | 400 V | 50Hz | 3,4 |
| 217 | Switzerland | 400 V | 50Hz | 3,4 |
| 218 | Syria | 380 V | 50Hz | 3 |
| 219 | Tahiti | 380 V | 50 Hz / 60 Hz | 3,4 |
| 220 | Tajikistan | 380 V | 50Hz | 3 |
| 221 | Tanzania | 415 V | 50Hz | 3,4 |
| 222 | Thailand | 400 V | 50Hz | 3,4 |
| 223 | Togo | 380 V | 50Hz | 4 |
| 224 | Tonga | 415 V | 50Hz | 3,4 |
| 225 | Trinidad and Tobago | 115/230 V 230/400 V | 60Hz | 4 |
| 226 | Tunisia | 400 V | 50Hz | 4 |
| 227 | Turkey | 400 V | 50Hz | 3,4 |
| 228 | Turkmenistan | 380 V | 50Hz | 3 |
| 229 | Turks and Caicos Islands | 240V | 60Hz | 4 |
| 230 | Uganda | 415 V | 50Hz | 4 |
| 231 | Ukraine | 400 V | 50Hz | 4 |
| 232 | United Arab Emirates | 400 V | 50Hz | 3,4 |
| 233 | United States of America (USA) | 120/208 V 277/480 V 120/240 V 240 V / 480 V | 60Hz | 3,4 |
| 234 | United States Virgin Islands | 190 V | 60Hz | 3,4 |
| 235 | Uruguay | 380 V | 50Hz | 3 |
| 236 | Uzbekistan | 380 V | 50Hz | 4 |
| 237 | Vanuatu | 400 V | 50Hz | 3,4 |
| 238 | Venezuela | 120 V | 60Hz | 3,4 |
| 239 | Vietnam | 380 V | 50Hz | 4 |
| 240 | Virgin Islands (British) | 190 V | 60Hz | 3,4 |
| 241 | Virgin Islands (USA) | 190 V | 60Hz | 3,4 |
| 242 | Wales | 400 V | 50Hz | 4 |
| 243 | Yemen | 400 V | 50Hz | 4 |
| 244 | Zambia | 400 V | 50Hz | 4 |
| 245 | Zimbabwe | 415 V | 50Hz | 3,4 |
James Liu
James Liu – Chief Engineer, DED Laser Metal Additive Manufacturing Mr. James Liu is a preeminent expert and technical leader in the field of Directed Energy Deposition (DED) laser metal additive manufacturing (AM). He specializes in researching the interaction mechanisms between high-energy lasers and metal materials and is dedicated to advancing the industrialization of this technology for high-end manufacturing applications. As a core inventor, Mr. Liu has been granted numerous pivotal national invention patents. These patents cover critical aspects of DED technology, including laser head design, powder feeding processes, melt pool monitoring, and build path planning. He is deeply responsible…
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