The table below summarises the plug types, voltage and frequency of electrical current in both Oman and Guinea-Bissau.
| Oman | Guinea-Bissau | |
|---|---|---|
| Plug Types | C, G | C |
| Voltage | 240V | 220V |
| Frequency of electrical current | 50Hz | 50Hz |
In Oman there's more than one plug type in use.
What type of plug does your appliance have?
No adaptor needed
Guinea-Bissau uses Socket Type C, which is the same as the plug type of your appliances from Oman. You will not need an adaptor.
You will need this adaptor:
Socket Type
(Oman) to Plug Type C
(Guinea-Bissau)
The voltages found in Oman (240V) and Guinea-Bissau (220V) are not exactly the same, but the difference is tolerable, so you should not need a transformer.
The frequency found in Oman and Guinea-Bissau is exactly the same (50Hz). Timing devices and appliances that use motors will function as expected under this frequency.