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Posted 20 hours ago

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

£9.9£99Clearance
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Scottish Islands:HS1-9, IV40-51, IV55-56, KA27-28, KW15-17, PA20, PA30, PA32-34, PA41-49, PA60-78, PH42-44, ZE1-3 When it comes down to it, the only person(s) able to do this are those that are Part P registered. If however you ignore this and do carry out electrical work that you’re not allowed to, this is illegal and also can invalidate your home insurance and cause potential issues when trying to sell your home. 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.

Once the first MCB is connected up, the others are connected in the same way, ensuring that each is connected to the correct size of MCB for the item(s) it’s powering. Before any work is done, firstly it is ensured that power to the entire property is isolated so that the consumer unit can be safely worked on. Once the incoming live is connected using a bus bar for each MCB, the next job is to connect each circuit to it’s relevant MCB. Once the safety side of the board is in place, the next items to be installed are the MCB’s, one for each required circuit. Step 2 – Install MCB/RCBO: As the circuit must have its own MCB or RCBO, first a new one is installed within the consumer unit in the appropriate place. Depending on what it will be powering will depend where it goes as the more power hungry circuits tend to be placed closer to the main switch and RCD

This consumer unit, like the RCBO version was mainly born out the nuisance tripping addition to the wiring regulations and in effect combines the best features of each of the other types of configuration. These are generally reserved for items such as fire alarms, fire suppression, medical equipment and the such, where under no circumstances should they go off. When the 17th Edition Wiring Regulations were introduced in 2008, it stated that all circuits should be protected against earth leakage and to ensure this is the case, the split load consumer unit was introduced. 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)?

In essence what it does is if it detects an imbalance in electrical flow or too much residual earth current, it will then cut the power to all of the MCB’s/circuits running under it, protecting them and any human presence from potential injury. The RCD is then clipped onto the DIN bar. The top clip is first clipped over the top of the bar and then bottom either clips over using a spring clip, a screw or simply just clips over. The third and final circuit(s) basically sit next to the main switch and are comprised of individual RCBO’s that provide all the protection for the circuit they are supplying. These circuits are considered highly important and as they are individually protected and outside of the RCD circuits, won’t trip with the other circuits protected under them. If this is a new consumer unit install for an existing property then your electrician will have either marked each circuit to identify what it powers or will work each one out as he gets to it. However it is possible to add more but they should always have a fused connection unit or FCU between them and the location you’re taking power from.

Once all the testing has been completed the next job is to isolate the power to the existing fuse/circuit board and then remove it.

By now you should be totally familiar with exactly what a ring main or ring final circuit is and how it works. As a radial circuit should only ever be installed by a Part P registered electrician, you won’t be wiring one up yourself. way circuit using RCBO’s and RCD’s – Image courtesy of the BS7671 18th Edition Wiring Regulations What are RCD’s?Now, mount all the three MCB’s (6A, 16A and 32A respectively) and 2-poles RCD (63A) in the built-in din rail in the garage CU.

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. When purchasing a consumer unit, it will either come with a main switch and RCD and possibly a number of MCB’s or it will come empty. Depending on how it’s being wired up and what your electrician has chosen to use will depend on what you go for. 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. When it comes to a modern split consumer unit, the use of RCDs is necessary for 2 reasons to meet the wiring regulations. Read carefully all the cautions and instructions and follow them strictly while doing this tutorial or any other work in practical related to electrical works.

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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. Again, it entirely depends on your existing electrical layout as to how this is done, but your electrician will certainly know. What this seems to suggest is that, although it isn’t at present, may be at some point in the future, split load boards may be deemed non-compliant and will need to be changed. This is something to bear in mind. The second condition applies to any circuits where an earth fault current is not sufficient to blow the fuse, or trip the switch in the designated time allowance stated in the regulations. They can also feature 1 or even 2 RCD’s. The RCD, or residual current device is similar to an MCB in that if it senses an issue it will trip and isolate all the of the MCB’s/fuses below it. More on these below.

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