Электрическая розетка - вилка - тип L - Italian CEI 23-16/VII

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This plug is technically known as the Italian earthed plug/socket standard, CEI 23-16/VII. It includes two models rated at 10 A and 16 A that differ in contact diameter and spacing.

Both are symmetrical, allowing the live and neutral contacts to be inserted in either direction. CEE 7/16 (Type C) unearthed Europlugs are also in common use, and standardized in Italy as CEI 23-5. It is also possible to fit Type D and Type E plugs in Italian flat-face sockets by firmly pushing the plug into the socket. However, this can cause damage to the socket, and the plug may get stuck.

The 10 ampere style extends CEE 7/16 by adding a central earthing pin. Thus, CEI 23-16-VII 10 A sockets can accept CEE 7/16 Europlugs. This is the plug shown in the photos above.

The 16 ampere style looks like a bigger version of the 10 A style. The pins are a couple of millimeters further apart, and all three are slightly thicker. The packaging on these plugs in Italy may claim they are a "North European" type. They may also be referred to as industriale ("industrial") although this is not a correct definition.

Two types of sockets are in common use in modern installations in Italy. One type has a central round hole and two 8-shaped holes above and below. This design allows the connection of both styles of type L plugs (CEI 23-16/VII 10 A and 16 A) and the type C CEE 7/16 Europlug. The advantage of this socket type is its small face.

The other type looks like a Type F socket, but adds a central grounding hole. This design accepts Type E and Type F plugs, in addition to Type C and type L 10 A plugs; its disadvantage is that it is twice as large as a normal Type L socket. Some of these sockets also have extra holes to accept type L 16 A plugs. Another disadvantage of this kind of socket is the impossibility to accept most of the AC/DC wall-mounted power supplies without an adapter or an extension cord, because of its pit-shaped design.

Older installations often have sockets that are limited to either the 10 A or the 16 A style plug, requiring the use of an adapter if the other style needs to be connected.