Bs 546 two pole and earthing pin plugs socket outlets and socket outlet adaptors for ac 50 60 hz circuits up to 250v describes four sizes of plug rated at 2 a 5 a type d 15 a type m and 30 a.
Wall mounted socket outlet ring circuit from db to socket outlet.
A flush mounted socket is the neatest solution but you must drill and chop out the wall to fit the back box.
This video explain how to add another socket outlet to an existing ring circuit also called a spur from the ring circuit.
The plugs have three round pins arranged in a triangle with the larger top pin being the earthing pin.
From each 13a socket outlet you can wire for another 13a socket outlet which is called a.
From the second socket outlet take another set of 3 wires from l n e and connect to the third socket outlet.
Here you do not connect another set of cables back to the distribution board.
Diy stores sell surface or flush mounted sockets.
A socket outlet is the familiar item mounted on the wall into which a plug can be inserted.
To check if a socket outlet having two cables is in a ring circuit again examine the adjacent outlets.
It is available in single and double types.
A single socket outlet is rated at 13 amps.
Extending a ring circuit using a junction box extending an existing ring final circuit.
A few manufacturers also make triple and quad versions.
Only one unfused spur supplying either a single 1 gang or 2 gang socket outlet should be connected to any accessory forming a part of the circuit appendix 15 of bs 7671 refers.
In this video im showing how to move double socket outlet that is on the ring final circuit into another location using wago connectors.
The plugs are polarised and unfused.
However they are more easily knocked and damaged as well as looking more utilitarian.
Surface mounted sockets are easier to install as the wires are fitted into the box not the wall.
In the case of a ring final circuit each unfused spur may only feed one single or one double socket outlet or a single item of current using equipment.
Proceed like this until you come to the last 13a socket outlet.
All of the socket outlets will have two cables.
They consist of a steel backing box recessed and fixed into the wall and a faceplate which screws on to the front.
Both brown wires connect to the live or l terminal.
As described previously a ring circuit starts at the consumer unit connects to each socket outlet in turn and then returns to the consumer unit.
Flush mounted outlets are the most common and obviously the neatest.
There are a number of different types of plug socket outlet so make sure that you choose the right one before you attempt to install a plug socket.