Electric Current Information for Japan
| Cities | Type of current |
Frequency of current | Number of phases | Nominal voltage | Number of wires | Frequency stability |
| Nagoya, Osaka, Kobe, Hiroshima, Fukuoka, Kitakyushu, Nagasaki | a.c. | 60 | 1,3 | 100/200 | 2,3 | yes |
| Sapporo, Sendai, Nagano, Tokyo, Chiba, Yokohama | a.c. | 50 | 1,3 | 100/200 | 2,3 | yes |
| Type(s) of plug | |
| Type A |  |
| Type B |  |
| Type I |  |
| Note(s) | |
| 1 = The neutral wire of the secondary distribution system is grounded. | |
