Standards & Regulations - Legrand
International electricalstandards & regulationsAN OVERVIEW OF ELECTRICALINSTALLATIONS
Introductionto the installations worldhe world of electrical installationsis not always straightforward.Working on an international projectelectrical engineers are often bewilderedby the extensive amount of electricalstandards and wiring regulations whichdetermines their decisions.TRely on the world’sleading specialistAs one of the worldleading specialistsin wiring accessories,Legrand actively participateto the elaboration of theinstallation standardsat international (IEC),regional (NEC) and locallevels. Thus, the technicalexpertise of the Legrandpeople makes it possibleto propose installationproducts suitable for eachspecific local market.Detailed knowledgeof the wiring rulesThe purpose of thisdocument is to clearlypresent the mostfrequently encounteredsets of wiring rules,showing the maintechnical characteristicsof each set of installationand main accessoriesstandards. Obviously, onany given project, it isessential that the designengineer’s work shouldbe based on a detailedCOLOUR CODE OF SOLID STRANDED FLEXIBLE CONDUCTORSCONSUMER UNITOne of the most completeoffer of the market130 000 catalogue items!For you, the wealthof the Legrand Group’scatalogue offer is theguarantee that youwill find the productsand solutions bestsuited to your specificrequirements in terms ofelectrical installations andcommunication networks.Continuous innovationNo less than 1 800people are dedicatedfull-time to research anddevelopment. On average,Legrand invests 5% of itssales each year in R&D.SustainableDevelopment: a priorityFor many years,the Legrand Grouphas drawn strengthfrom its values to ensureprofitable, sustainableand responsible growthin its business.CB: Circuit breakerMCB: Miniature circuit breakerRCBO: Residual current operated circuit breakerwith integral overcurrent protectionLineNeutralEarthFUSEknowledge of the wiringregulations and standardswhich are applicable inthe specific country.This document comparesthe basic frameworkof the standards.Therefore, it is essentialfor the design engineerto obtain more detailedinformation by contactingthe appropriate standardsand building regulationsorganisations.500 mARCBO16 A 30 mAJUNCTIONBOX2 way switchRCBOJUNCTIONBOXCompactfluorescent lampSocket outlets16 AArteorJUNCTIONBOXCBSwitch and socketFluorescentlampSwitch16 A 30 mAJUNCTIONBOXLEDLampLEDLED lampRCBOJUNCTIONBOXAxoluteSocket outletsLamp16 A 30 mALampJUNCTIONBOXRCBOSocket outletsCélianeSwitchShaver socketBy signing up to the Global Compactin 2006, this approach has beengiven a wider dimension.The Group’s environmentalcommitment is centred on 3 guidinglines: taking on board environmentalmanagement in the running ofits industrial sites, reducingthe environmental impact of itsproducts by eco-design, providingenvironmentally friendly solutionsthat contribute to energy savings.
02Standard for low voltage installations04Overview of standards for socket outlets worldwide060608IEC British standardResidential wiring diagramOverview of the installation and relatedwiring accessories standardConsumer units & Din-Rail equipmentby Legrand GroupWiring accessories by Legrand Group101214141618202222242628IEC German standardResidential wiring diagramOverview of the installation and relatedwiring accessories standardConsumer units & Din-Rail equipmentby Legrand GroupWiring accessories by Legrand GroupIEC French standardResidential wiring diagramOverview of the installation and relatedwiring accessories standardConsumer units & Din-Rail equipmentby Legrand GroupWiring accessories by Legrand Group303032IEC Italian standardResidential wiring diagramConsumer units, Din-Rail equipment& wiring accessories by Legrand Group34343640IEC Brazilian standardResidential wiring diagramOverview of the installation and relatedwiring accessories standardConsumer units & Din-Rail equipmentby Legrand GroupWiring accessories by Legrand Group424244IEC Chinese standardResidential wiring diagramWiring accessories by Legrand Group46Other IEC based installation rules48485054NEC American standardResidential wiring diagramOverview of the installation and relatedwiring accessories standardConsumer units & Din-Rail equipmentby Legrand GroupWiring accessories by Legrand Group56Energy distribution58Putting a stop to energy waste60From technical rooms to workstations62Residential multimedia networks64Home automation for everyone66Home automation “Prestige”68Complete solutions for other projects70Electrical symbols in the world3852
02Standardfor low voltage installationsType of standards (IEC/NEC) for low voltage electrical installations.IECNECIEC and NECThis map is for guidance only, Legrand as a company cannot be held responsibleor liable for errors nor for changes that occur constantly with local standards.Bolivia (230 V 50 Hz)Cuba (115/230 V 60 Hz)Afghanistan (220 V 50 Hz)Bosnia and Herzegovina (220 V 50 Hz)Cyprus (230 V 50 Hz)Albania (230 V 50 Hz)Botswana (220 V 50 Hz)Algeria (220 V 50 Hz)Brazil (220-127 V 60 Hz)Andorra (230 V 50 Hz)Brunei Darussalam (240 V 50 Hz)Denmark (230 V 50 Hz)Angola (220 V 50 Hz)Bulgaria (220/230 V 50 Hz)Djibouti (220 V 50 Hz)Argentina (220 V 50 Hz)Burkina Faso (230 V 50 Hz)Armenia (220 V 50 Hz)Burundi (220 V 50 Hz)AAustralia (230 V 50 Hz)Czech Republic (230 V 50 Hz)DDominican Republic (240 V 60 Hz)EEcuador (110 V 60 Hz)CAustria (230 V 50 Hz)Cambodia (220 V 50 Hz)Egypt (220 V 50 Hz)Azerbaijan (220 V 50 Hz)Cameroon (220 V 50 Hz)El Salvador (240/120 V 60 Hz)Canada (240/120 V, 240 V 60 Hz)Eritrea (220 V 50 Hz)Bahamas (120/240 V, 120/208 V 60 Hz)Central African Republic (220 V 50 Hz)Estonia (220 V 50 Hz)Bahrain (240 V 50 Hz)Chad (220 V 50 Hz)Ethiopia (220 V 50 Hz)Bangladesh (230 V 50 Hz)Chile (220 V 50 Hz)Belarus (220 V, 220/127 V, 127 V 50 Hz)China (220 V 50 Hz)Fiji (240 V 50 Hz)Belgium (230 V 50 Hz)Colombia (240/120 V, 208/120 V 60 Hz)Finland (230 V 50 Hz)Belize (110 V 60 Hz)Congo (Democratic Republic) (220-240 V 50 Hz)France (230 V 50 Hz)Benin (220 V 50 Hz)Costa Rica (240/120 V 60 Hz)French Overseas Territories (220 V 50 Hz)Bhutan (230 V 50 Hz)Croatia (230 V 50 Hz)BF
03Madagascar (220/110 V 50 Hz)Sierra Leone (230 V 50 Hz)Gabon (220 V 50 Hz)Malawi (230 V 50 Hz)Singapore (230 V 50 Hz)Gambia (220 V 50 Hz)Malaysia (240 V 50 Hz)Slovakia (230 V 50 Hz)Georgia (220 V 50 Hz)Maldives (220 V 50 Hz)Slovenia (230 V 50 Hz)Germany (230 V 50 Hz)Mali (220 V 50 Hz)Somalia (230 V, 220 V, 110 V 50 Hz)Ghana (240-220 V 50 Hz)Malta (230 V 50 Hz)South Africa (250 V, 230 V, 220 V 50 Hz)Greece (230 V 50 Hz)Mauritania (220 V 50 Hz)Spain (220 V, 220/127 V 50 Hz)Grenada (230 V 50 Hz)Mauritius (220 V 50 Hz)Sri Lanka (230 V 50 Hz)Guatemala (220/110 V 60 Hz)Mexico (220/127 V, 220 V, 120 V 50 Hz)Sudan (240 V 50 Hz)Guyana (120/240 V 50 Hz, 60 Hz)Moldova (220 V, 220/127 V, 127 V 50 Hz)Suriname (220/127 V 60 Hz)Monaco (220 V 50 Hz)Swaziland (230 V 50 Hz)Haiti (220 V, 110 V 60 Hz)Mongolia (220 V 50 Hz)Sweden (230 V 50 Hz)Honduras (220/110 V 60 Hz)Morocco (220 V 50 Hz)Switzerland (230 V 50 Hz)Hungary (230 V 50 Hz)Mozambique (220 V 50 Hz)GHMyanmar (230 V 50 Hz)IIceland (230 V 50 Hz)Syrian Arab Republic (220 V 50 Hz)TTaiwan (220 V 60 Hz)NIndia (230 V 50 Hz)Namibia (220 V 50 Hz)Tajikistan (220 V, 220/127 V, 127 V 50 Hz)Indonesia (220 V 50 Hz)Nepal (220 V 50 Hz)Tanzania (United Republic) (230 V 50 Hz)Iran (220 V 50 Hz)Netherlands (230 V 50 Hz)Thailand (220 V 50 Hz)Iraq (220 V 50 Hz)New Zealand (230 V 50 Hz)Togo (230 V 50 Hz)Ireland (230 V 50 Hz)Nicaragua (240/120 V 60 Hz)Tonga (240 V 50 Hz)Israel (230 V 50 Hz)Niger (220 V 50 Hz)Trinidad and Tobago (230/115 V 60 Hz)Ivory Coast (230 V 50 Hz)Nigeria (230 V, 220 V 50 Hz)Tunisia (230 V 50 Hz)Italy (230 V 50 Hz)Norway (230 V 50 Hz)Turkey (220 V 50 Hz)JTurkmenistan (220 V, 220/127 V, 127 V 50 Hz)OJamaica (220/110 V 50 Hz)Japan (110 V 60 Hz)Oman (240 V 50 Hz)UUganda (240 V 50 Hz)PJordan (230 V 50 Hz)KPakistan (230 V 50 Hz)Ukraine (220 V 50 Hz)Panama (240/120 V 60 Hz)United Arab Emirates (240 V 50 Hz)Kazakhstan (220-230 V 50 Hz)Papua New Guinea (240 V 50 Hz)Kenya (240 V 50 Hz)Paraguay (220 V 50 Hz)Korea (North) (220 V 60 Hz)Peru (220 V 60 Hz)United States of America (120/240 V, 208/120 V 60 Hz)Korea (South) (110 V 60 Hz)Philippines (250 V 60 Hz)Uruguay (220 V 50 Hz)Kuwait (230 V 50 Hz)Poland (230 V 50 Hz)Kyrgyzstan (220 V 50 Hz)Portugal (230 V 50 Hz)LUnited Kingdom of Great Britainand Northern Ireland (230 V 50 Hz)Uzbekistan (220 V 50 Hz)VVanuatu (220 V 50 Hz)QLaos (220 V 50 Hz)Latvia (220 V 50 Hz)Qatar (240 V 50 Hz)Vietnam (220 V 50 Hz)Lebanon (220 V 50 Hz)Romania (230 V 50 Hz)Lesotho (220 V 50 Hz)Russian Federation (220 V 50 Hz)Liberia (230 V, 220 V 50 Hz)Rwanda (220 V 50 Hz)Libyan Arab Jamahiriya (220 V 50 Hz)Saint Lucia (240 V 50 Hz)Lithuania (230 V 50 Hz)Saint Vincent and the Grenadines (230 V 50 Hz)Luxembourg (230 V 50 Hz)Saudi Arabia (220/127 V 60 Hz)Senegal (220 V 50 Hz)Macedonia (220 V 50 Hz)YYemen (250 V 50 Hz)ZZambia (230 V 50 Hz)SLiechtenstein (230 V 50 Hz)MVenezuela (120 V 60 Hz)RSeychelles (230 V 50 Hz)Zimbabwe (225 V 50 Hz)
04Overview of standardsfor socket outlets worldwideThe map gives an overview of which local standard a country belongs to.GERMANFRENCHAMERICANBRITISHAUSTRALIANOTHERS1 Brazilian2 Danish3 European plug4 Israeli5 Italian6 Euro-US7 Chinese8 IndianThis map is for guidance only, Legrand as a company cannot be held responsibleor liable for errors nor for changes that occur constantly with local standards.AAfghanistanBeninColombiaBhutanCongo (Democratic Republic)AlgeriaBoliviaCosta RicaAndorraBosnia and baniaArgentina1ArmeniaBrunei DarussalamAustraliaBulgariaAustriaBurkina FasoAzerbaijanBurundiBCzech RepublicD23CBahamasDenmarkDjiboutiDominican gyptBarbadosCentral African RepublicEl 5EritreaEstonia5Ethiopia
05FLithuaniaFijiFinlandMSeychellesMacedoniaSierra LeoneFrench Overseas alaysiaGambiaMaldivesGeorgiaMali7HMyanmarSyrian Arab RepublicTanzania (United araguaTongaTrinidad and guayKazakhstanKenyaPeru6United Arab EmiratesPolandKuwaitPortugalQLUnited Kingdom of Great Britainand Northern IrelandUnited States of AmericaPhilippinesKorea (North and South)KyrgyzstanUkrainePapua New banonRussian FederationLesothoLiberiaLibyan Arab JamahiriyaLiechtensteinVenezuelaRLatviaThailandNew yanaIvory CoastSri th niaMaltaGermany5SenegalFranceG8Saudi ArabiaLuxembourg6VietnamYYemenRwandaZSSaint LuciaZambiaSaint Vincent and the GrenadinesZimbabwe
06CONSUMER UNITConsumer unit45 A 30 mAIEC BritishstandardRCBOTypical residential wiring diagram issued fromBS 7671 requirements for electrical installations.50 A 30 mARCBO Consumer units and Din-Rail equipmentby Legrand Group10-11 Wiring accessories by Legrand Group12-1332 A 30 mARCBO20 A 30 mARCBO6ARCBOFor more details on countriesSee maps page 02 to 05N.B.: Conductors cross sectionis calculated according to variousparameters for each circuit.See regulations for detailsof alternative options usingcombinations of RCD and MCB.
07orLineNeutralEarthBRITISH STANDARDCOLOUR CODE OF SOLID STRANDED FLEXIBLE CONDUCTORSMCB: Miniature circuit breakerRCBO: Residual current operated circuit breakerwith integral overcurrent protection45 A WallSwitchCooker (range)45 A Cableoutlet50 A CeilingswitchDouble 13 A socket outletsSpur unitInstant showerunitFixed applianceSimple 13 Asocket outlets20 A D.P. WallswitchWater-heater6 A SwitchCeiling roseAll-insulatedlampholderAll-insulatedlampholder
IEC I BRITISH STANDARDOverview of the installationand related wiringaccessories standardtSUPPLYSince 1 January 1995 nominal voltage in UK is 230 V 10% / - 6% a.c.at 50 Hz. Earth is normally suppliedbut may be local.tHOUSE SERVICE CUT-OUTThe Electricity Boards protectivedevice, usually a 80 A or a 100 AHRC Fuse. It is sealed in a specialhousing to prevent tampering.In general, a double pole switchcontrols and isolates the appliancewhen necessary and the connectionof the appliance can be madeeither directly to the switch or viaa flexible cable outlet. Switchesshould conform to BS EN 60669and Cooker Control unit to BS 4177.tMETERUsually a dual meter for normaland off-peak energy consumption,sealed to prevent tampering.Socket outlets to BS 546 areno longer used in domesticinstallations in the UK but are stillwidely used in some other countries.t PLUGSPlugs of domestic appliancesshould conform to BS 1363-1.They contain a fuse linkto BS 1362 of a rating appropriateto the flexible cord of the appliance(max 13 A). Domestic appliancessold in UK must be fitted with9x428,6Ø 8,72208t CONSUMER UNITIt houses the main switch whichisolates the total installation andthe individual circuit protectiondevices. The consumer unit shouldcomply with BS EN 60439-3.Circuit protection is normallyprovided by miniature circuitbreakers to BS EN 60898 (olderinstallation may have fuseprotection). The consumer unit mayalso contain one or more residualcurrent devices providing additizonal protection in all or part of theinstallation (older installations maynot have RCD protection provided).tPOWER CIRCUITSAppliances having heavy currentconsumption (cookers, waterheaters, etc.) should each besupplied on a specific circuitof the appropriate rating.6x46x42213A BS1363-1tFLUSH FITTING OF TWO GANG SOCKETHeightWidthFixingcentres1 gang75 mm75 mm60.5 mm2 gang75 mm135 mm121 mmtSOCKET OUTLET CIRCUITSSocket outlets should comply withBS 1363-2 and are usually of theswitched type. They are usuallysupplied via a ring final circuitwhich is a circuit running fromthe protection device to each outletand then returning to the protectiondevice. Permanent connectionsto a ring final circuit and branchesoff the ring are made via fusedconnection units to BS 1363-4.Ø725,415A BS546a BS 1363-1 plug, further the UKplug and socket safety regulationsrequire mandatory third partycertification of plugs.t LIGHTING CIRCUITSUsually a circuit supplies severallighting points in turn. A lightingpoint usually consists of a ceilingrose in which incoming, outgoingand switch connections are madeand a pendant flexible cordsupplying an attached lampholderor may be a complete luminaire.Light switches should meetBS EN 60669-1. Dimmers shouldmeet BS EN 60669-2-1.
09I N S TA L L AT I O N R U L E StBATHROOMSThe wiring regulations are verystrict. Every switch or other meansof electrical control or adjustmentshall be so situated as to benormally inaccessible in thebathroom. The required Ingressprotection is managed througha series of defined zonesprogressively from the bathor shower. Pull cord switchesare allowed, shaver sockets withisolating transformers are alsoallowed but should conformto BS EN 61558-2-5.Zone 1Zone 2225 cmZone 060 cmNote: For showers without basins (eg wet-room)zone 1 is extend to 120cm from the centre pointof the water outlet.tOUTDOORSAny socket outlet providedoutdoors or intended to supplyoutdoor equipment (e.g. electriclawn-mowers should havea 30 mA RCD protection).BS 7671 is also available from BSI,The various British standards governingthe construction of electrical equipment are alsoavailable at the BSI shop on their website:www.bsigroup.comBRITISH STANDARDBS 7671, “Requirements for ElectricalInstallations” is published by the Institutionof Engineeringand Technology and BSI, it governs all domesticelectrical installations (and many other types).Copies are available from:THE INSTITUTION OF ENGINEERINGAND TECHNOLOGYMICHAEL FARADAY HOUSESIX HILLS WAY,STEVENAGE, SG1 2AY UKBSI also maintains a database availablefor enquiries covering all British standards.tEARTHINGSocket outlets to BS1363-2have provision for earthing.A protective conductor (which couldalso be steel conduit) is generallyrequired for all low voltage circuits(1000 V a.c. between conductors)and its continuity must be proved.All main incoming services,for example, water and gas pipesand metallic parts of the buildingstructure, etc. must be bondedand connected to the mainearthing terminal of the installation.In addition it may be necessaryto supplementary bond waterand waste pipes, sinks and othermetallic items such as centralheating radiators. However inrooms with a fixed bath or shower,supplementary bonding mustbe applied to simultaneouslyaccessible metal parts unlessRCD protection of all circuitsin the bathroom is provided.t POLARITYThe polarity is conserved andmarked throughout the installation:Live:Terminals marked L are for browncoloured insulated conductors,both solid conductors and flexibleconductors are coloured brownNeutral:Terminals marked N are for bluecoloured insulated conductors,both solid conductors and flexibleconductors are coloured blue.Earth:Terminals marked E or arefor green/yellow colouredinsulated earth conductors,both solid conductors and flexibleconductors are either colouredgreen or yellow or sleeved as such.t CABLINGMost domestic wiring is done inflat p.v.c. insulated and sheathed3 core cable (flat twin and earth).Maximum use is made of floorand internal wall voids to runcables. Surface installationsare run in conduit or trunking,these can be plastic or metal.Various British standards governthe design and construction ofconduits, trunking and cable.Wiring accessories may beinstalled in plastic or (more often)metal flush boxes to BS 4662.Surface installations are madein appropriate proprietary boxes.Typically:16 mm plaster depth box25 mm socket box
IEC I BRITISH STANDARDConsumer units and Din-Railequipment by Legrand GroupThe Legrand range of insulated and metal consumer units offers flexible and easy installation for a wide rangeof configurations from full Lexic RCBO protection to mixes of Lexic RCBs, MCBs and RCBOs.Ekinoxe consumer units have been designed to provide a new dimension of protection in homes, offices and industries.With a stylish colour, elegant curves and distinctive finish, Ekinoxe blends in perfectly with any interior decor.Legrand Lexic modular circuit breakers offer an extensive range of characteristics and can be used to organise distributionin rows as required, up to 125 A. It is the ideal universal solution for all commercial and residential installations.t10SPECIFIC TO UK MARKETConsumer unitsINSULATED DUAL WITH RCD INCOMER8 modules unitINSULATED DUAL RCD SPLIT LOAD16 modules unitMETAL DUAL RCD SPLIT LOAD16 modules unitDin-Rail equipmentISOLATINGSWITCHRCCB - DXRCBOMCB - DXTIME SWITCHSURGE PROTECTIONDEVICECONTACTOR
tBRITISH STANDARD11Power protectionSee page 56 to 57SPECIFIC TO INDIAN MARKET (see p. 46-47 for standards organization)Consumer unitsEKINOXE DBs8 waysEKINOXE DBs12 waysEKINOXE DBsIP 43 with acrylic doorDin-Rail equipmentMCBISOLATOR SWITCHMCB FOR D.CRCBO
12IEC I BRITISH STANDARDWiring accessoriesby Legrand GroupAll the expertise of the Legrand Group has been brought into play to offer markets governed by the BritishStandard a unique selection of wiring accessory ranges, in terms of both finish and function, and thus coverall requirements in all sectors of the residential and commercial markets.Arteor, the Legrand Group’s new inter
the basic framework of the standards. Therefore, it is essential for the design engineer to obtain more detailed information by contacting . wiring accessories standard 52 Consumer units & Din-Rail equipment by Legrand Group 54 Wiring accessories by Legrand Group
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