Compare the plug shapes, voltage and frequency in Papua New Guinea and Oman, and find out which adapter you need before you travel.
Adapter required
Yes — coming from Papua New Guinea, you will need a travel adapter for Oman. Papua New Guinea uses Type I plugs, and Oman uses Type G, so the pin shapes will not fit any wall socket.
Papua New Guinea (home)
Oman (destination)
Electrical specifications in Oman
Voltage
Frequency
More about plugs in Oman
In Oman, the standard power plug is Type G. The country runs on 230 volts at 50 Hz. That means every wall socket in Oman is the same shape — Type G, and your plug needs to physically match the socket to fit.
Full Oman plug guide