The New Standard IEC 61439 Low Voltage Switchgear And .

The new standard IEC 61439Low voltage switchgear and controlgear assembliesNormativeguide andHagerSolutions

IEC 61439IEC 61439-1General rulesIEC 61439-2Power switchgear andcontrolgear assembliesIEC 61439-3Distribution boardsIEC 61439-4Assemblies for constructionsitesIEC 61439-5Assemblies for publicdistribution networksIEC 61439-6Busbar trunking systemsIEC 61439-7Particular applications(e.g. charging stations.)

The first series of standards for switchgear and controlgearassembly IEC 60439 was published in 1973. Consequently, thisseries of standards has often been criticized and considered asdifficult to understand and implement. It also had several greyareas and some elements that were subject to interpretation.Thus, the international electrotechnical committee carried outan in-depth reform of these standards, which led to thepublication of the new renumbered series IEC 61439. Thestandards IEC 61439-1 & 61439-2 were revised for the first timein January 2009 and have been fully applicable since November2014. A second edition was published in August 2011.This new version is meant for the final requirement by taking intoaccount the constraints of all the stakeholders of the economicchain. Thus, it must lead to a wider usage and in general greatersecurity. It is also articulated in the same manner as the seriesIEC 60947 governing low voltage equipment with a first partbearing the general rules and interfaces to which the otherstandards of the series refer.Table of contentsRevision of IEC 60439 to IEC 61439Hager solutions- quadro4 range- quadro5 range- quadro range4681012Panel builder's deliverablesIdentification of assembliesList of individual checksDeclaration of compliance15151617

CaponperformanceThe implicationsof the newstandardThis standard aims to standardize all the rules and requirements applicable tothe low voltage switchgear and controlgear assemblies (Assemblies) in orderto make the requirements and checks uniform and thus avoid any verificationaccording to other standards.All the requirements relating to the different standards applicable to theAssemblies which may generally be considered has been collected withspecific aspects such as, for example, heating, dielectric properties, etc.In particular, it specifies the responsibilities of each party, by differentiatingthose of the original manufacturer from those of the assembly manufacturer.Mains changes- A new structure, similar to IEC 60947.- Shared and clearly defined responsibilities.- Removal of concept of type-tested and partially type-testedassemblies.- Three different methods for verification of requirements butequivalent, in terms of test, calculation and design rules.- Short-circuit performance requirements, performancewhen heated, dielectric properties, factor of diversity andresistance of the covered hardware in detail.

5 key points to be considered14Clarification ofresponsibilities andengagements ofeach stakeholder inthe projectIdentification of theAssembly throughmarked labels2Clarification ofrequirements ofthe specification5Traceability ofdocuments andtest certificates3Systematicverification ofeach assembly:9 points to checkMain objectives1. Guarantee of operation of theelectric installation downstream ofthe assembly2. Electric current conductingcapacity3. Resistance to short circuits4. Electromagnetic compatibility5. Protection of persons againstelectric shocks6. Protection of persons and theassembly against fire7. Resistance to mechanical andclimatic environment8. Protection of the assembly againstpower surges9. Maintenance and modificationcapability10. Ability to install on site

DevelopmentsRevision of IEC 60439 to IEC 61439The assembly standards IEC 60439 were published in 1973 and have been changed to IEC 61439 36 years later.ChaptersNEWIEC 61439IEC 60439IEC 60439-1IEC 61439-1Type-testedassemblies and partiallytype-tested assembliesGeneral rulesIEC 61439-2Power switchgear and controlgearassembliesIEC 60439-2Prefabricated ductsIEC 61439-3IEC 60439-3Distribution boardsDistribution boardsIEC 61439-4IEC 60439-4Assemblies for construction sitesAssemblies for construction sitesIEC 61439-5IEC 60439-5Assemblies for public distribution networksElectric energydistribution assembliesIEC 61439-6Busbar trunking systemsIEC 61439-7Particular applications (e.g. chargingstations.)Consideration ofthe stakeholders of the marketOriginal manufacturerAssembly manufacturer (panel builder)- System designer.- Issues the system check principles.- Manufactures the assembly according to the originalmanufacturer's rules.- Becomes the original manufacturer for any change in theoriginal system.- Carries out routine tests of the final Assembly (tests,calculations or rules).Approval of assembliesNEWIEC 61439IEC 60439Type-tested assemblies- 7 type tests- 3 routine testsPartially type-tested assembliesChecked AssembliesHReferenceDesign- Calculations not clearly defined toprevent sample tests- 3 routine tests4D9 checks (3 methods)- Tests- Calculations-measurements- Design verifications9 individual routine checks

DevelopmentsDesign verificationThese 12 verifications are carried out by the original manufacturer according to Appendix D, Table D1 of standardIEC 61439-1.They are meant as a check for compliance of an Assembly with the requirements of the standard.Various equivalent methods are available according to the feature to be checked. They can be carried out either:- by tests- by calculation/measurement- by fulfilment of the design verifications.No.1Features to checkArticles orparagraphsAvailable verification optionsTestsComparisonwith a referencedesignEvaluationyesnonoResistance of materials and parts:10.2Corrosion resistance10.2.2Properties of insulating materials:10.2.3Thermal stability10.2.3.1yesnonoResistance of insulating materials to abnormal 10.2.3.2heat and fire due to internal electric effects.yesnoyesResistance to ultraviolet radiation (UV)10.2.4yesnoyesLifting10.2.5yesnonoMechanical impact10.2.6yesnonoMarking10.2.7yesnono2Degree of protection10.3yesnoyes3Clearance and creepage distances10.4yesnono4Protection against electric shock and integrity 10.5of the protection circuits:Continuity between the groundsof the Assembly and the protection circuit10.5.2yesnonoResistance to short-circuit of the protectioncircuit10.5.3yesyesno5Integration of connection devices andcomponents10.6nonoyes6Internal electric circuits and connections10.7nonoyes7External conductor terminals10.8nonoyes8Dielectric properties:10.9Power-frequency withstand voltage10.9.2yesnonoImpulse withstand voltage10.9.3yesnoyes9Heating limits10.10yesyesyes10Resistance to short-circuits10.11yesyesno11Electromagnetic compatibility (CEM)10.12yesnoyes12Mechanical operation10.13yesnono5

Hager solutionsIntroductionLow voltage switchgear and controlgear assembliesin line with IEC 61439Example of LV Switchgear and Controlgear Assembly:"Low Voltage Main Switch Board", power supply 2 x 800 kVAForewordLow voltage switchgear and controlgear assemblies(Un 1000 V AC) may be used at the origin of anelectrical installation with: Low Voltage Main switchboard (transformer area) LVMSB Low Voltage MainDistribution Board(technical area) LV MDB Sub Distribution boards SDBThe clauses and rules ofthe standard IEC 61 439 areapplicable to these boardsin order to guarantee thesecurity of persons andproperties, quality andreliability and durability ofthe electrical equipment.LV MSBLV MDB6SDB

Hager solutionsHardwarePower appliances up to:630 A2500 Aquadro4IP 30 to 43quadro5IP 30 to 55quadro IP 31 to 55Switch boards and boxes to beassembledFloor standing or wall mountingenclosuresCells to be assembled(height 100 or 200 mm) IP 30 to 43 (with or without door) 2 widths: 370 and 620 mm Height: 500 to1850 mm Depth: 267 mm Internal modularequipment of 10 and24 modules Full metal and transparentdoor 320 mm wide enclosuremay be used to installthe switchgear or busbarsand may also serve ascable compartment with orwithout terminal. Enclosures may beconnected widthwise IP 30 to 55 (with or without door) 3 widths: 450, 700 and900 mm Height: 510 to 2010 mm Internal modularequipment of 10, 24 and36 modules Full metal and transparentdoor A mounting kit allows transformingthe 900 mm wide cover into anequipment part that is 700 mmwide (24 modules) and a 200 mmwide cable compartment canaccommodate a staged busbar ofmax. 400 A and a terminal or mayserve as a cable compartment. IP 31 to 55 (with or without door) 4 widths: 450, 700, 900and 1000 mm 3 busbar ducts or cable compartmentwith or without terminal of 200, 300and 450 mm wide 1 height: 1900 mm 3 depths: 400, 600 and800 mm (possibility to have a depthof 1000 mm by connecting 2 depthswith an adapted accessory). Internal modularequipment of 10, 24 and36 modules Full metal and transparentdoor "Main" energy distributionsystem (up to 2500 A), mounting incable compartment or at the base ofthe cell, and "Distribution" Receive modular devices from 1 to125 A and Power appliances from160 to 630 A Power appliances from 160 to 630 A Receive modular devices from 1 to125 A and Power appliances from160 to 630 A Power appliances from 160 to 630 A Receive modular devices from 1 to125 A and Power appliances from160 to 2500 A Power appliances from 160 to 2500 A7

Hager solutionsHardwareFor configurations up to 630 AThe quadro4 rangeInterior view of a switchgear and controlgear assemblyIn 630 A – Icw 35 kA – IP30 to 432 h 3 range of circuit breakers andmoulded case switchesIn 160 to 630 A3 Vertical mounting of cablecompartment4 or horizontal mounting ofequipmentEnergy distribution system6 Inclined in vertical cable compartmentor horizontal in equipment7 Flat behind devices or vertical inequipment9 Modular range of miniature circuitbreakers (MCB) 1P N, 1, 2, 3 and 4P, Curves B, C and D, from 1 to 125 A: With add-on-block1 Cable compartment; For connections up to 16 mm², cablecompartment can be equipped withvertical terminal blocks ( 16 mm²:direct connection on devices)Electrical diagramCable markerCable typeSection (mm2)Outlet markerDateCreated byModificationScale 1Date modifiedModified byProject name : GTT-61439Room 5LightingRoom 3LightingRoom 1LightingKitchenLightingLightingLayout no.RestaurantPortalTeachingPower supply panelPlugApplicationLocation of outletsPictogramIndexCase no.Validated byPower diagramNeutral systemSheet8a

Hager Aquadro4 enclosure2 widths: 370 and 620 mmwith various accessoriesDistribution board to beassembledInternal height 450 to 1800 mm2 widths: 370 and 620 mm(floor standing or wallmounting)234h3 range of circuit breakers andmoulded case switchesAccessories: connection,control, signaling, Mounting kitsHeights 200 to 600 mm3 widths 250, 500 and 750 mm6Inclined busbarmax. 630 AverticalhorizontalBusbarsCu 20 x 5 (250 A),Cu 32 x 5 (400 A),Cu 30 x 10 (630 A)7Flat busbar max. 630 AverticalhorizontalBusbarsCu 12 x 5 (160 A)Cu 20 x 5 (250 A)Cu 30 x 5 (400 A)Cu 30 x 10 (630 A)8Modular circuit breaker1P N, 2, 3 and 4P, Curves B,C and D, from 1 to 63 A9Modular circuit breaker1, 2, 3 and 4P, Curves B, Cand D, from 80 to 125 A:Add-on-block 25 to 125 A;Connecting terminalsfrom 2.5 to 70 mm²Mounting kits2 heights 150 and 200 mmEquipment 10, 24 and 36modules in width (250, 500and 750 mm).Horizontal or verticalmounting on DIN rail (cablecompartment of 370 mm)9