The definitions for persons are important to consider when we look at the requirements for protection of circuits supplying socket outlets. the reason for this is it states that the person/company that are certifying the work shall be actively involved with all aspects of the installation from design through to certification. A new, revised version of Regulation 411.3.3, relating to RCD protection of socket-outlets, forms part of BS 7671:2008+A3:2015 (IET Wiring Regulations Seventeenth Edition), which was published in January 2015 and comes into effect on 1 July. The politics (for which read shares in a particular company) behind moves in IEE regs, BS (yes), IEC and other bodies are not necessarily bad. I would be guessing you will be installing a new consumer unit and this is no longer covered by a periodic test so is classed as a new installation, so you will need an electrician or electrical company that is part p certified and also either NIC, ECA, registered. [4] BS 7671 is also used as a national standard by Mauritius, St Lucia, Saint Vincent and the Grenadines, Sierra Leone, Sri Lanka, Trinidad and Tobago, Uganda, Cyprus, and several other countries, which base their wiring regulations on BS 7671. This document makes reference to the power supply to such systems and mentions RCD’s. [7] One of the more significant changes is (chapter 41) that 30 mA RCDs will be required for socket outlets that are for use by ordinary persons and are intended for general use. With a rewire, make no worse, preferably make better, ideally best. credit to @liam.ward96 for, CAUGHT ON CAMERA ⚡️ When undertaking work at a dwelling at risk of flooding, consideration should be given to the following issues, some of which are included in Prepare your property for flooding: As far as equipment belonging to the electricity distributor is concerned, the Electricity Safety, Quality and Continuity Regulations (ESQCR) 2002 requires the distributor to install and, so far as is reasonably practicable, maintain the equipment to prevent danger (Regulation 24 of the ESQCR refers). as far as sockets are concerned, skirting boards was never a good height, above them marginally better, 300mm to underside better still and the "new" 450 mm to underside better still. IP64 rated. Hi, when a DB is full, and you want to add a new circuit. The particular requirements of this section apply to cables which are concealed in a wall or partition at a depth of less than 50mm, or where metal partitions are used. I told him he would do no such thing and didn't care less if I don't get my bloody certificate, as I intend to DIE in this house. The purpose of the requirement is to avoid damage such as might result from the flexible cord being too tightly bent between the plug and the floor or working surface. The current version is BS 7671:2018 (the 18th Edition) issued in 2018 and came into effect from 1 January 2019. Reduce the possibility of unwanted tripping of the RCD due to excessive protective conductor currents. FuseTalk Standard Edition v3.2 - © 1999-2020 FuseTalk Inc. All rights reserved. These heights are intended to reduce back strain and difficulties for those less able, but they don’t apply to kitchens and garages. Discussion in 'Electrics UK' started by TrevorMcAlister, 25 Jan 2010. The exception in indent (b), relating to the omission of RCD protection for specific socket-outlets, is included in both the current and new versions of the regulation. Issued as IEE Wiring Regulations 3 phase colours red, white and green, neutral or earth black. (Possibly reprinted 1983, 1984, 1986 amendment to remove volltage operated earth leakage circuit breakers), 1987, 1988? 3 phase colours red, white and blue, Black for neutral or earth. The standard takes account of the technical substance of agreements reached in CENELEC.[2]. This improves the level of protection against electrical shock in the UK to a level comparable to that in other EU countries. Consumer Units should be easily reachable and be mounted with the switches at a height of between 0.45m & 1.2m above floor level. Although the IET and BSI are non-governmental organisations and the Wiring Regulations are non-statutory, they are referenced in several UK statutory instruments, and in most cases, for practical purposes, have legal force as the appropriate method of electric wiring.[5]. [edit] eselinger beat me to it, but in less verbose form, Other and general engineering discussions, Recruiter: Science and Technology Facilities Council (STFC). Unlike the current version of Regulation 411.3.3, the new version does not permit the omission of RCD protection to a socket-outlet just because the socket-outlet is for use under the supervision of skilled or instructed persons. used for an Electric lawn mower. My electrician announced late last night, 3 and a half months into my renovation that he is going to be putting all the sockets and switches in my rewired 250 year old house 500 mm off the ground (sockets) and 1200mm off the ground (switches)!!! If you need to find a tradesperson to get your job done, please try our local search below, airport lounges. it was no longer seen as having any relevance, given the development in the application of RCDs to the general requirements of BS 7671 over recent years; and. How do you do you do this? Good article. To enable access by wheelchair users, outlets, switches and controls should be at least 350 mm from room corners. (b) for a specific labelled or otherwise suitably identified socket-outlet provided for connection of a particular item of equipment. Firstly however, to fully understand … as far as sockets are concerned, skirting boards was never a good height, above them marginally better, 300mm to underside better still and the "new" 450 mm to underside better still. IET Services Limited is registered in England Registered Office Savoy Place, London, WC2R 0BL Registration Number 909719, IET Services Limited is trading as a subsidiary of the Institution of Engineering and Technology, which is registered as a Charity in England & Wales (no 211014) and Scotland (no SC038698). CAUGHT ON CAMERA • Thanks to @janelectr, CAUGHT ON CAMERA Learn how your comment data is processed. continues to permit the omission of RCD protection for a specifically labelled or otherwise suitably identified socket-outlet that has been provided for a connection of a particular item of equipment (see indent (b)). BS 8300: 2009 is a Code of Practice which includes recommendations on the mounting heights of electrical equipment to meet the needs of disabled people. Requirements of BS 7671. The reason for this is that part p of the new regs states somewhere that in order for you to recieve the required certification you will need to employ or use a suitably qualified and registered electrician. Where RCD protection is needed for smoke detector circuits one option is to supply that circuit only. The maximum disconnection times stated in Table 41.1 now apply for final circuits up to 63 A with one or more socket-outlets and 32 A for final circuits supplying only fixed connected current-using equipment (Regulation 411.3.2.2). Dwellings liable to flooding Guidance on issues relating to flooding is given in a publication called Prepare your property for flooding, and a free electronic copy can be downloaded by visiting the ‘Flood’ section of the Environment Agency’s website www.environment-agency.gov.uk. Sockets above work surfaces. Significant changes affect installations where cables are buried in the wall. To reduce the effects of splashing, socket-outlets and similar accessories, as a rule of thumb, should be mounted at not less than 300 mm (ideally not less than 1000 mm) in the horizontal plane, from the extremities of a sink, tap or wash basin. By comparing the two versions, it can be seen that the new version: Editor's note: references to the 'current' version of BS 7671 relate to BS 7671:2008(2011), i.e. Cables likely to be damaged by flooding should be drawn into plastic conduit. Electrical equipment such as consumer units, meters (subject to agreement with the distributor) and socket outlets should be mounted above the expected flood level. 17th Edition. ie where do you get th power from when adding a mini enclosure. This is no longer required in this location provided the following conditions are met: All circuits in locations containing a bath or shower shall be protected by an RCD not exceeding 30mA. By comparing the two versions, it can be seen that the new version: Select the supplier or trade you require, enter your location to begin your search. IET Wiring Regulations", informally called in the electrical community The "Regs", is the national standard in the United Kingdom for electrical installation and the safety of electrical wiring in domestic, commercial, industrial, and other buildings, also in special installations and locations, such as marinas or caravan parks and medical locations[1], In general, BS 7671 applies to circuits supplied at nominal voltages (Uo) up to and including 1000 volts AC or 1500 volts DC. together with some other considerations, like the Division of Installation and about the Fire Detection and Fire Alarm Systems for buildings. The 17th edition and its amendments incorporated new sections relating to microgeneration and solar photovoltaic systems, non-combustible consumer units, RCDs, and breakers (including high resilience breaker layout). Neither should it be placed in a position where is likely to be damaged by impact. The upper and lower limits of mounting height given in BS 8300 are reproduced in Table 1. Drain holes are required in such conduits to prevent water collecting at the conduit low points, thereby reducing the risk of long term water damage to cables and associated equipment. This is the normal practice in dwellings. Issued as IEE Wiring Regulations. However, where an installation is not under the supervision of someone skilled or instructed, regulation 522.6.7 applies. In a.c. systems, additional protection by means of an RCD in accordance with Regulation 415.1 shall be provided for: (i) socket-outlets with a rated current not exceeding 20 A that are for use by ordinary persons and are intended for general use, and. Buy online consumer units, either domestic consumer units(MK or Hager) or industrial consumer units(Hager, ryefield boards, or isolators and switch fuses) by visiting the Electrical Items category at sparksdirect.co.uk. The introduction of the 17th Edition of the Wiring Regulations on the 1st January 2008 has major implications for all Electrical Contractors, Designers and Consultants. As originally published highlights - RCDs required for most outlets, Amendment 1 highlights - high resilience consumer units, Amendment 2 highlights - electric vehicle charging added, earlier change incorporated for medical locations, Amendment 3 highlights - non-combustible consumer units/enclosures, This page was last edited on 17 October 2020, at 18:15.
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