earthing pin

In the developing world, local wiring practice may not provide a connection to an earthing pin of an outlet.

The Danish socket need not be recessed to protect the earthing pin.

The plugs have three round pins arranged in a triangle, with an earthing pin.

This patent covers the use of an earthing pin which extends further than the other two contacts to ensure that it is engaged first.

When earthed distribution systems became common, earlier unearthed socket types were either replaced with new standards, or revised to include an earthing pin.

The 10 A style extends CEE 7/16 by adding a central earthing pin of the same gauge.

There are unearthed versions of the plug used with this outlet having only the two flat inverted V-aligned pins, without the Earthing pin.

Unlike the French CEE 7/5 plug, the earthing pin is on the plug, not in the socket.

An unearthed version of this plug with two angled power pins but no earthing pin is used with small double-insulated appliances, but the sockets always include an earth pin.

It has earthing clips on both sides to connect with the CEE 7/4 socket and a female contact to accept the earthing pin of the CEE 7/5 socket.

The current American version of the earthed plug, with two parallel blades and a round earthing pin, was invented by Philip F. Labre, while he was attending the Milwaukee School of Engineering.

They may not provide earthing to all types of plugs, as is the case of Schuko or French plugs where the earthing pin that mates with the plug is part of the socket rather than the plug.

The plug matching the socket pictured on the left, used in Australia, New Zealand, Fiji, Papua New Guinea and Tokelau, has two flat pins forming an inverted V-shape plus an earthing pin.

The plug has two round power pins 4.8 mm in diameter and 19 mm in length, insulated for 10 mm and spaced 19 mm apart, with an earthing pin of the same diameter and 21.4 mm in length, located 11.89 mm from the line connecting the two power pins.