Guide to Construction of ArTu switchgear - Abb

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5 Degrees of IK protection of the housings5.1 IK degree of protection of ArTu switchgearCharacteristic LettersThe IK degree indicates the level of protection provided by the housing for the equipment againstharmful mechanical impacts, and is checked using standardised test methods.The IK code is the coding system for indicating the degree of protection provided by housingsagainst harmful mechanical impacts, in accordance with what is prescribed in the EN 50102Standard.The degree of protection of the housing against impacts is indicated by the IK code in thefollowing way:International mechanical protectionCharacteristic numerical group from 00 to 10IK 10Each characteristic numerical group represents an impact energy value as indicated in thetable:GENERALSTANDARDS ANDCHARACTERISTICSVERIFYING THEOVERTEMPERATURESRelationship between the IK degree of protection and impact energyCode IK IK00 IK01 IK02 IK03 IK04 IK05 IK06 IK07 IK08 IK09 IK10Joule impact energy (*) 0,14 0,2 0,35 0,5 0,7 1 2 5 10 20(*) Unprotected according to the following Standard.The degree of protection is normally applied to the complete housing. If parts of the housinghave different degrees of protection, the latter must be indicated separately.5.1 IK degree of protection of ArTu switchgearWith regard to ArTu switchgear, the degree of IK protection is valid for the whole switchgear,mounted and installed as in ordinary use (with door closed).The degrees of protection against external mechanical impacts (IK code) of the ArTu series ofswitchgear are given below.IK 08300mm1,7 kgArTu LImpact energy inJoule 5,00PROTECTION AGAINSTSHORT-CIRCUIT ANDELECTRIC SHOCKSPRACTICAL INDICATIONSCERTIFICATION ANDCONSTRUCTIONIK 09With glazeddoor200mm5 kgArTu M - KImpact energy inJoule 10,00CERTIFICATESIK 10With blinddoor400mm5 kgArTu M - KImpact energy inJoule 20,00DECLARATION OFCONFORMITYABB SACEGuide to Construction of ArTu switchgear13
6 Forms of segregationGENERALSTANDARDS ANDCHARACTERISTICSVERIFYING THEOVERTEMPERATURESPROTECTION AGAINSTSHORT-CIRCUIT ANDELECTRIC SHOCKSPRACTICAL INDICATIONSCERTIFICATION ANDCONSTRUCTIONSimbolabForm 1(no internal segregation)By form of segregation, the type of division foreseen inside the switchgear is intended. Segregationby means of barriers or partitions (metal or insulating) can have the purpose of:- ensuring protection against direct contacts (at least IPXXB), in the case of access toa part of the switchgear cut off from the power supply, in relation to the rest of theswitchgear which remains supplied with power- reducing the probability of striking and propagation of an internal arc- preventing passage of solid bodies between different parts of the switchgear (at leastIP2X degree of protection).By partition, the separating element between two compartments is intended, whereas the barrierprotects the operator from direct contacts and from the effects of the breaking apparatus arcin the normal direction of access.The following table given in the IEC 60439-1 Standard highlights the typical forms of segregationwhich can be obtained by using barriers or partitions:cdForm 2(segregation of the busbars fromthe functional units)Form 2aTerminals not separated from thebusbarsForm 2bTerminals separated from thebusbarsCaptiona Housingb Internal segregationc Functional units including the terminals for the associated externalconductorsd Busbars, including the distribution busbarsForm 3(separation of the busbars from thefunctional units + separation of thefunctional units from each other)Form 3aTerminals not separated from thebusbarsForm 3bTerminals separated from thebusbarsForm 4(separation of the busbars from thefunctional units + separation of thefunctional units from each other +separation of the terminals fromeach other)Form 4aTerminals in the same compartmentas the associated functional unitForm 4bTerminals not in the same compartmentas the associated functional unitCERTIFICATESDECLARATION OFCONFORMITYBy means of a kit, the ABB SACE ArTu K switchgear can make the following forms ofsegregation:form 1 no segregationform 2 covers form 2a and form 3a of the Standardform 3 covers form 3b of the Standardform 4 covers form 4b of the Standard14 ABB SACEGuide to Construction of ArTu switchgear
Page 1 and 2: Technical guideGuide toConstruction
Page 3 and 4: 1 Standards relative to switchgear
Page 5 and 6: 2 Rated electrical characteristics
Page 7 and 8: 2 Rated electric characteristics of
Page 9 and 10: 3 Classification of electric switch
Page 11 and 12: 4 IP degree of protection in ArTu s
Page 13: 4 IP degree of protection and heati
Page 17 and 18: 7 Checking the overtemperature limi
Page 31: 7 Checking the overtemperature limi
Page 46 and 47: 8 Protection against the effects of
Page 52 and 53: 9 Protection against electric shock
Page 54 and 55: 9 Protection against electric shock
Page 56 and 57: SACESACE10 Practical indications fo
Page 58 and 59: 10 Practical indications for constr
Page 60 and 61: 10 Practical indications for constr
Page 62 and 63: 11 Guide to certification according
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11 Guide to certification according
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12 Example of construction of ArTu
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Annex A: LOVAG ACAE certificatesIGA
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SACESACESACESACEAnnex A: LOVAG ACAE
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SACESACESACESACEAnnex A: LOVAG ACAE
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SACEAnnex A: LOVAG ACAE certificate
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Annex B: forms for the declaration
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Annex B: forms for the declaration
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Certificato N°OHS-015Certificato N
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Guide to Construction of ArTu switchgear - Abb

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