BG Electrical Circuit Protection Shower Kit, IP65 Rated Metal Enclosure, 63 Amp, 240 x 176 mm

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RCD’s also work by detecting an imbalance between the Live and the Neutral conductors and this feature is a requirement for all Class 2 double insulated equipment. It is possible to extend a ring main if you need to. For help and information on how to do this, please see our extending a ring main project here. Cooker and Electric Shower Circuits

One of the most important jobs your electrician will (or should) do before starting such a job is to first ensure they test all of the existing circuits in the property to make sure they function correctly and have no issues.Just as a matter of interest, DIN stands for Deutsche Industrie Norm and, originating in Germany, is any of a series of technical standards, used internationally, to designate electrical connections, film speeds and paper sizes. What are the Different Types of Consumer Unit? The modern consumer unit also has a range of other safety features including a main switch that controls the power to the entire unit, that, once switched off, will turn the power off to the entire house.

A garage consumer unit is used to feed up fewer load circuits (generally 2-5 units). If only a small amount of load points are needed to power up through mains supply, they install a garage consumer unit instead of larger consumer units especially in outbuildings. An information label near the consumer unit explains this. The resistor passes more current than that required for tripping, and the duration of the test is not limited, so testing in this way does not provide proof that the unit is working to specification. If this isn’t done then it can lead to all manner of issues when reconnecting and testing the circuits, so it’s best for both your electrician and also you to know if there are issues before any work is started. Never ever try to play with electricity (as it is dangerous and can be fatal) without proper guidance and care. Do the installation and repairing work in presence of experienced persons having vast knowledge and good practice who knows how to deal with electricity.

Ring circuits are normally fed with a 30 or 32 amp fuse or MCB, but if feed is supplied through a 4mm cable then the spurs could also be feed with 30 or 32 amp fuse or MCB. Identifying a radial circuit and a final ring circuit requires a test. A sparky (electrician) will disconnect the wires in the consumer unit and test continuity between the two cables on the live and return terminals. Now that you know exactly what a consumer unit is and what role it plays in terms of the electrics in your home, it’s time to look at it in a little more detail so that you know the role of each component inside. This is obviously just for standard plug in appliances e.g. dishwashers, washing machines, TV’s and the likes. For more substantial power hungry appliances such as cookers and showers, it will depend on how much power they draw as to what size cable is used. Depending on the type of install will depend on what cables are used, you electrician will know exactly what to use. In this instance 16mm cables were used.

As both ends of the ring are connected to the same terminals at the consumer unit, the current runs in both directions imposing less of a load on the cables. Electricity loses power over long lengths of cable and trying to put too much power through a cable which is not designed for it is dangerous, so a ring main delivers power from both ends to keep the load as light as possible. In short if you cannot correctly test whether the circuit you have is a ring main or a radial circuit then you should not, under any circumstances be working on it. The UK is the only country in the world to work with ring mains, or final ring circuits and without the correct testing equipment and knowledge of procedures it is impossible to tell the difference.

In this guide we take a look at the consumer unit and how it works, read on to find out more. Rules and Regulations for Electricity in Your Home However to be sure that your electrician is doing it correctly, this is generally the process that’s followed: If you would like to find out more about these circuits, see our project on radial circuits. How Can I Tell if my House has Radial Circuits or Ring Mains (Final circuits)?