toretesting.blogg.se - Cable supply plaster rings 124 ericopring

Cable supply plaster rings 124 ericopring free#

Bussbar screw terminals – The cable cores are inserted into their own holes and then secured by screwing down on them to trap them securely.

Single Screw type terminals inside a junction box These are typically found in the Standard junction box, and allow the connection of a larger number or sizes of cable cores that the other terminal types

Single screw terminal – The terminal has one screw which is screwed closed on to the cable cores being joined together to secure them all in one single connection point.

The terminals are where the connections will be made by inserting the wire core from either side or the wiring run and then screwing the terminal close to create a safe electrical junction and join.Ī 3 terminal junction box being used to join two sections of wiring togetherĮssentially there are three types of terminal that are used in a junction box – these are: Junction boxes come with either 3, 4, 5 or 6 terminals so work our which you will need to complete your project.

Lighting circuits = 20 amp Junction Box Terminals and Wiring.

Ring mains and radial circuits = 30 amp.

It is possible to use a higher amp rated junction box on a lower rated circuit, but never the other way around – To summarise: The rating that you use must reflect the current of the circuit that it will be used on. A ring main ( more about ring mains can be found in our project here) and also a radial circuit ( more about radial circuits in our project here) will need a 30 amp junction box, whereas a lighting circuit (although you can buy 5amp junction boxes) will need a 20amp junction box. Make sure you have the right box for the right job. Junction boxes are rated in amps to protect them, you and the circuit. We will explain the differences between these types of junction box and their various benefits shortly, however it is important that you have the right rating whichever type that you choose.

Cable supply plaster rings 124 ericopring free#

Maintenance Free or Wagobox Junction Box.Each will differ slightly depending manufacturer (terminal layout, slightly different mouldings etc….), but the essentials should all be the same: There are also different styles of junction boxes that you can use. There are two key differences that you will need to look out for when purchasing your junction box: For more information please see our lights and switches project.Ī typical junction box – These can be purchased from our online store here Types of Electrical Junction Box ExplainedĮlectrical junction boxes come in a range of different types. Junction boxes can also be used to add lights and switches. Junction boxes have an advantage here in that all wiring and joins are housed within the junction box itself, leaving no exposed bare wires that can be touched or knocked. You might be thinking that block connectors do the same job and you would be right, but they do leave quite large sections of wiring exposed and if you have removed long lengths of the protective sleeve from wires, bare live wires can be easily accessible and cause an obvious danger. As a result they are commonly used and very useful for anyone involved in wiring and electrics. Whenever you need to join two or more electrical wires, then you should use a junction box. In short they are used for joining wires or running a spur from an electrical circuit safely. If a wire has become damaged, the damaged section can be cut out and teh two sections joined back together again using a junction box. Junction boxes can be used to connect additional sockets to circuits, add lighting points, extend circuits, and in general they are a way of getting power from an existing source and taking it somewhere else. Make sure you turn all power off and isolate the circuits you are working on. Please be absolutely sure you know what you are doing and get all of your work checked by a qualified electrician. This can affect your sale, you could be breaking the law and your house insurance may not be valid. Part P of the new building regulations could involve a check on any additional circuitry by qualified electricians when you sell your home.

Warning: To complete electrical works you must comply with Electrical Regulations – Click here for more information.