Electric Current Information for Sri Lanka
| Cities | Type of current |
Frequency of current | Number of phases | Nominal voltage | Number of wires | Frequency stability |
| All | a.c. | 50 | 1,3 | 220/440 | 2,3 | no |
| Type(s) of plug | |
| Type B |  |
| Type C |  |
| Type D |  |
| Type G |  |
| Type H |  |
| Type K |  |
| Note(s) | |
| 1 = The neutral wire of the secondary distribution system is grounded. | |
| 3 = Voltage tolerance is plus or minus 4% to 9%. | |
