Share: Facebook Twitter Reddit Pinterest Tumblr WhatsApp Email Share Link. The previous requirement for protection to socket outlets affected those with a rated current not exceeding 20A. This must be achieved in the context of safe touch voltage limits (i.e. Under the new regulations an installation is required to incorporate one or more RCD… RCD, RCCB & RCBO. One of the major changes to the AS/NZS 3000: 2018 is the Residual Current Devices (RCD) requirements for the protection of sub-circuits and relating alterations and repairs (clause 2.6.3.2.3). Regulation 531.3.3 covers general application areas and futureproofs the Regulations regarding RCD protection i.e. Refer to the Appliance Manufacturers instructions. If you have a new circuit installed, or a circuit is substantially modified, you may be required to have an RCD fitted under the Building Regulations (Part P) or BS7671 wiring regulations. “Amendment 3 placed the responsibility for the omission of RCD protection clearly on the installation’s designer. BEAMA RCD Handbook - Guide To The Selection & Application Of RCD's RCD Fact Sheet. One reason why RCD protection might be used I thought best practice would be to design it so the over-current device would achieve the 0.4s disconnection time and the residual current device would achieve the additional protection requirements? Latest Posts . A residual-current device (RCD), residual-current circuit breaker (RCCB), or ground-fault circuit interrupter (GFCI) is a device that quickly breaks an electrical circuit to prevent serious harm from an ongoing electric shock. Amongst contractors and consultants, a great deal of this debate has focused on the issues relating to RCD protection of socket outlets. RCDs must be installed in accordance with the Electricity Regulations to protect all power and lighting circuits. This area is here for information purposes. U. EICR unsatisfacory. Answered 23rd Nov 2011 Like 23. … Regulation 411.3.3. For new installations and rewires, all socket-outlets with a rated current not exceeding 32A need to have additional protection by RCD, except where other than for an installation in a dwelling, a documented risk assessment determines that the RCD protection is not necessary. Refer to the Appliance Manufacturer's instructions. 12 November 2015 08:18 pm Sanft Posts: 89 Joined: 22 August 2011 Good Evening … Residual Current Devices (RCD) these are switches that trip a circuit under dangerous conditions, and instantly disconnect the electricity. 17th Edition - protection of electric sockets - Ever since the draft for public comment of the 17th Edition Wiring Regulations (WR) was released in November 2006, debate has raged over the implications of its official introduction on June 1st, 2008. Latest: ktnwin; Today at 3:59 AM; Electrical Forum. … For low voltage circuits, regulation 5.24(2) requires the earth leakage protection device to operate at an earth leakage current not exceeding 1 A. In commercial and industrial environments, all 32 Amp outlets and below need to be protected by an RCD. The regulations BS 7671:2008 now incorporate amendment No.1 2011. On 1 July 2015, BS 7671:2008+A3:2015 comes into effect. IET » Wiring and the regulations » RCD Protection. IEC/TR 60755 ed 2 – General requirements for residual current operated protective devices; IEC/TR 62350 – Guidance for the correct use of residual current-operated protective devices (RCDs) for household and similar use; Go back to RCD types ↑ Reference // Protection against earth faults with Residual Current Devices by ABB Although its strongly advisable to have RCD protection fitted in a rental property as it could save the tenant from a fatal electric shock as well as prevent a fire. Notes to figures 1 and 2. Topic Title: RCD Protection Topic Summary: When carrying out an EICR Created On: 12 November 2015 08:18 pm Status: Read Only : Linear: Threading: Single: Branch: 1: 2: Next: Last unread: Search Topic. RCD Protection. Everyone in the industry is bound by them and every customer is the beneficiary. A new Regulation 411.3.4 requires that, within domestic (household) premises, additional protection by an RCD with a rated residual operating current not exceeding 30 mA shall be provided for AC final circuits supplying luminaires. Or rather, a flat completed (first sold) in Sep 2007, with no RCD protection for anything - would that have complied at the time. This Guide is intended as a practical guide for designers, specifiers and installers to enable them to comply with surge protection requirements in BS 7671: 2018 IET Wiring Regulations 18th Edition. Consult here the directive and the regulations that govern the Community design system. Reply to RCD Protection for submains in the Electrical Forum area at ElectriciansForums.net. Do Commercial premises need RCD protection? If this information is not available, the Designer / Constructor to meet BS7671, would have to use an RCD that covers all of the possible scenarios i.e. The current building and electrical wiring regulations specify RCD’s are to be installed on all circuits in all new installations and also where any changes to the electrical installation have been made. RCD laws Information about RCD laws for homeowners, real estate agents, settlement agents, landlords, tenants and property managers. In summary, the new sockets that have fitted must have RCD protection and the kitchen fitter or second electrician should have fitted an RCD if you did not already have one and issued a second certificate for the extra sockets. This guy sounds like he knows his stuff and is more up to date with the regulations than your first electrician. It is the view of the forum that any decision to omit RCD protection should not be taken lightly. There is an exception to omit RCD protection where, other than a dwelling, a documented risk assessment determines that RCD protection is not necessary. Hope this helps. as new appliances are introduced to the market; the selection of the RCD will be verified with reference to the residual currents that may be generated by the appliances. Whether it is best to do this with a MCCB/RCD module set up or individual RCD/MCBs at the origin will be up to your design, client's requirements and costs. They constantly monitor the electric current flowing along a circuit. BS7671 states for Additional Protection [415.1.2] - "The use of RCDs is not recognised as a sole means of protection and does not obviate the need to apply one of the protective measures specified in Sections 411 to 414." Yes! Don’t take the risk – get a modern Consumer Unit with RCD Protection fitted today. The Zs could be measured against the maximum permitted for an RCD as per table 41.5 as it is unlikely that you will achieve the … It would in my view be reasonable to use RCD socket outlets in many cases so as to limit the consequences of earth leakage to a single item of equipment. Protect your intellectual property in the European Union. Your legal duty of care is to provide a safe and habitable property. Topic Tools. RCDs protect humans against electrocution in a way that fuses and circuit breakers do not. Additional protection by an RCD is also not required if certain requirements for mechanical protection are met, as stated in the notes to Figures 1 and 2, or if the cable forms part of a SELV or PELV circuit meeting the requirements of Regulation 414.4. As a result, under normal conditions it is not possible to touch the live parts of the installation or equipment inadvertently. These regulations ensure that all circuits within a domestic installation should be provided with additional protection via a 30 mA RCD which can either be through the use of RCCBs which provide additional protection to multiple circuits, with overload protection provided by the individual circuit breakers. An RCD is an electrical safety device which provides protection by rapidly disconnecting the electricity supply in many situations where someone could otherwise receive a fatal electric shock. This can be achieved by use of a 30mA RCD in an AC circuit. - These methods being methods of protection against shock - ADS, Double Insulation, Separation & SELV/PELV. IMHO, RCD protection IS required for socket outlets under all commonplace circumstances in workplaces. This version is current until 30 June 2015. The designer must produce a risk assessment which determines that RCD protection was not necessary and justify their reasoning, possibly in a court of law, if someone is killed or injured as a result of RCD protection being omitted. To be electrically safe it must be tested every 5 years and reach a "Satisfactory" status. Protection against direct contact electric shock is based on normal common sense measures such as insulation of live parts, use of barriers or enclosures, protection by obstacles or protection by placing live parts out of reach. The Landlord & Tenant Act 1985, and several other statutory regulations requires that electrical equipment is safe at the start of every tenancy and maintained in a safe condition throughout the tenancy. K. Wiring query for external light. 17th Edition regulations and consumer units The advent of the 17th Edition of the Wiring regulations brought with it new challenges for installers and manufacturers alike, one such challenge involves the much greater use of RCDs within the electrical installation. “For protection against electric shock” Regulation 531.3.3 covers general application areas and futureproofs the Regulations regarding RCD protection i.e. All home sellers and landlords must ensure that RCDs are installed in accordance with the Electricity Regulations to protect all power and lighting circuits. As stated in the regs section 411 this is a primary condition of designing a circuit for ADS (EEBADS) as new appliances are introduced to the market; the selection of the RCD will be verified with reference to the residual currents that may be generated by the appliances. CHANGES TO REQUIREMENTS FOR RCD PROTECTION OF SOCKET-OUTLETS Editor's note: references to the 'current' version of BS 7671 relate to BS 7671:2008(2011), i.e. 25 Jun 2019. As noted in Clause 411.3.4, this has now been updated to apply to socket outlets up to 32A and lighting circuits within domestic premises. If there is an earth-fault, the RCD will sense a leakage (out of balance current) and trip, disconnecting the supply of electricity. Such RCD’s should not be used to provide the sole means of protection and do not obviate the need to apply one or more of the recognised protective measure as detailed in the regulations. Can someone tell me when it became a requirement for sockets (domestic property, use by ordinary persons) to have RCD protection. Residual current devices (RCDs) View similar topics: Print this topic. For more information about the differences and applications, read our guide. Clarification of mandatory RCD requirements for protected circuits, alterations and repairs (Clause 2.6.3) ... Where socket-outlets are added to an existing circuit and RCD protection is required, the RCD protection only needs to be fitted at the origin of the additional wiring. appropriate engineering judgement must be applied to this regulatory requirement). the 'green cover' Regulations. Directives & Regulations. Designers and installers should obtain their own copy of BS7671:2018 and follow the requirements and recommendations in the 18 th Edition of the IET Wiring Regulations.. Order your copy here. Latest: UKPN; Yesterday at 10:55 PM; Electrical Wiring, Theories and Regulations. BEAMA guide to Surge Protection Devices . WHS regulations specify RCD’s are to be installed (and regularly tested) in all circuits in hostile environments. Landlords must comply with statutory regulations or face significant risks . 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