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Always consult with a qualified electrician or electrical engineer to ensure that your consumer unit installation complies with BS 7671 and meets all safety requirements for your particular application. It is a good idea to have an electrical inspection if the wiring in your home is old or you have specific concerns over whether it is safe or damaged. For this reason, there is no such thing as a 'standard consumer unit' - but while the number of sizes, makes, brands and combinations of configurations is almost infinite there are in factonly fourmain types of consumer unit.
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.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. Despite this there remains many still in use in many homes across the UK today, however whether they are still legal very much depends. To do away with any potential issues such as these, the older fuse wires have been replaced by their modern equivalent, the MCB or miniature circuit breaker. Arcs can reach temperatures of up to 6000 degrees and can be the source of over half of the domestic house fires in the UK. A special device that combines the functionality of both RCD and MCB, protecting against both overload and earth leakage.
In days past when MCB’s became the protection device of choice for the consumer unit, the current rating for which a given MCB is designed to deal with have now been transferred into an international equivalent of our old imperial ratings. Our knockouts on our Design range boards are positioned at the correct distance from the wall to accommodate common sizes of trunking. Our 4 way consumer units are robust and reliable and have been designed and manufactured to meet the latest industry standards. Compliance with Regulations: Ensure that the consumer unit and its components comply with all relevant aspects of BS 7671 and any additional local regulations or standards.With a range of types and device options for various configurations, four way fuse boards are available from top trade brands. Finally, the incoming neutral of the RCD is wired to the main switch neutral block H and the outgoing neutral was then wired to the RCD neutral terminal block I. However, this does not preclude the designer/installer from using fire rated cable glands or external intumescent sealing should they consider necessary. 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.
Our knockouts on Design range boards are positioned at the correct distance from the wall to accommodate common sizes of trunking. This guide features the various costs associated with replacing fuse boxes and consumer units that they provided.The majority duplex of sold are 'Main Switch'consumer units which are populated with RCBOs over two rows and connected using a 100A DIN rail connector. 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. Also they resolve the nuisance tripping issue highlighted in subsequent versions of the Wiring Regulations. Duplex consumer unitswhich are alsoknown as double bank are a type of consumer unitin which the circuits are arranged over two rows.
As they are very sensitive to the slightest bit of earth leakage, it is not practical to fit one RCD to protect the whole house, hence the reason they are split over 2 circuits, normally one upstairs and one for downstairs. Qualified Installation: The installation of a consumer unit should be performed by a qualified electrician who is familiar with the regulations and safety requirements. We designed them to be rectangular to provide the maximum cable capacity and be aligned with the shape of trunking. Old and faulty wiring can be a major risk in a property, so if you have any wiring issues in your home you’ll need to organise rewiring. With three neutralbars, which in essence gives three banks of circuits - A 'High Integrity Consumer Unit'offers the best of both worlds.It acts as the control centre for the power supply while helping to prevent electrical shocks and fires, as each circuit is monitored and will trip the system if any overloads are detected. way circuit using RCBO’s and RCD’s – Image courtesy of the BS7671 18th Edition Wiring Regulations What are RCD’s?
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