Last updated: 17 August 2020
- used almost everywhere in Europe & Russia, except for the UK & Ireland
- 2 pins
- 16 A
- 220 – 240 V
- socket compatible with plug types C, E & F
- commonly used in Europe, South America & Asia
- 2 pins
- not grounded
- 2.5 A, 10 A & 16 A
- almost always 220 – 240 V
- socket compatible with plug type C
What is the mains voltage in Portugal?
Just like the rest of Europe, the voltage in Portugal is 230 volts and the frequency is 50 Hz.
Typically, type C plug sockets are not allowed to be installed in Portugal: these outlets are not earthed and are therefore considered dangerous. Only type F power points are permitted because they are grounded and therefore significantly safer.
The only (and rare) exception to this rule is that an old type C outlet should be replaced by a new one. After all, if you hook up a grounded wall outlet (i.e. type F) on a two-wire circuit, the socket will not be grounded, but people will get the wrong impression that it is actually grounded. No need to say, this would be a potentially dangerous situation.
Nowadays, however, type C receptacles are not frequently installed anymore, since older properties are almost always completely rewired when they are renovated or significantly altered.
In the past, Portugal used two earthed plug and socket systems side-by-side: the German type F and the French type E system. That is why sometimes type E sockets can still be found in older electrical installations. Since both systems were initially incompatible with each other, Portugal decided to settle on one single standard in the end. The reason for the incompatibility was that grounding in the type E socket is accomplished with a round male pin, which is permanently mounted in the socket. Type F outlets, on the other hand, are earthed by means of two sprung metal strips on the inside edge of the recessed socket which make a friction connection with similar metal strips on the sides of the plug body.
Old type F plugs did not have a grounding hole to accept the earth pin of the type E socket and old type E plugs did not have top and bottom indentations with earthing clips to mate with the type F socket. Moreover, old type E plugs were perfectly round and lacked a necessary pair of plastic notches on the left and right side to fit the type F socket.
Fortunately, the now standard hybrid E/F plug (officially called CEE 7/7) was developed in order to bridge the differences between E and F sockets, so technically type E and F plugs (not the sockets) have now become 100% identical.