CONTROL PANEL DESIGN

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CONTROL PANEL DESIGNOur panel manufacturing facility caters for panels ranging from Form 1 to Form 4 includingpanels for use in hazardous areas. The panels are built from approved electrical panel designdrawings, which detail all components in a parts list, cable schedules and sizes, terminalnumbers, etc. All the drawings are produced using AutoCAD and are capable of being emailedin PDF or original format. A dimensional drawing of the internal and external panel enclosurewith any display or identification labels, lights, etc., will be fully detailed. When appropriatethe panel will include for the customers “Free Issue” control equipment and customers logo,and drawing/label identification or serial numbers. The panel design, manufacturing andtesting procedures are fully covered to BS EN ISO 9000:2000.RACE Integrated can provide a complete range of the following types of control panel enclosures.INTERNAL FORM OF SEPARATIONIEC 60439-1: 1999, Annex D, gives the following guidelines for the different separation types.One of more of the following conditions can be obtained by dividing ASSEMBLIES by mean ofpartitions or barriers (metallic or non-metallic) into separate compartment or enclosed protectedspaces: Protection against contact with hazardous parts belonging to the adjacent functional units.The degree of protection shall be at least IPXXB. Protection against the passage of solid foreign bodies from one unit of an ASSEMBLY to anadjacent unit. The degree of protection shall be at least IP2X.Unless otherwise stated by the manufacturer, both conditions shall apply.NOTE:The degree of protection IP2X covers the degree of protection IPXXBThe following are typical forms of separation by partitions:1

FORM 1No separationFORM 2ASeparation of busbars from the functional units.The terminals for external conductors do notneed to be separated from the busbars.FORM 2BSeparation of busbars from the functionalunits. The terminals for external conductorsare separated from the busbars.FORM 3ASeparation of busbars from the functionalunits and separation of all functional unitsfrom one another. Separation of the terminalsfor external conductors from the units, but notfrom each other. The terminals for externalconductors do not need to be separated fromthe busbars.2

FORM 3BSeparation of busbars from the functionalunits and separation of all functional unitsfrom one another. Separation of the terminalsfor external conductors from the units, but notfrom each other. The terminals for externalconductors are separated from the busbars.FORM 4ASeparation of busbars from the functionalunits and separation of all functional unitsfrom one another, including the terminals forexternal conductors which are an integral partof the functional unit. Terminals for externalconductors are in the same compartment asthe associated functional unit.FORM 4BSeparation of busbars from the functionalunits and separation of all functional unitsfrom one another, including the terminals forexternal conductors which are an integral partof the functional unit. Terminals for externalconductors are not in the same compartmentas the associated functional unit, but inindividual, separate, enclosed protectedspaces or compartments.The form of separation and higher degrees of protection shall be subject to an agreement betweenthe manufacturer and the user.The UK National annex to BS EN 60439-1: 1999The internal separation of assemblies by barriers or partitions is specified in 7.7, and is subject toagreement between the manufacturer and the user.Table NA1 gives additional information regarding different types of construction, based on typicalpractice in the United Kingdom. Other types of construction are no precluded, and it is not essentialto adopt any of the listed types in order to comply with the requirements of this British Standard.However, in order to achieve agreement between manufacturers and users, it is recommended toadopt any of the listed types of construction.3

Table NA.1 Forms of separationMain criteriaSub-criteriaNo separationSeparation of busbarsfrom the functional unitsand separation of allfunctional units fromone another. Separationof the terminals forexternal conductorsfrom the functional units,but not from each other.Form 2aTerminals for externalconductors separatedfrom busbars.Form 2bTerminals for externalconductors notseparated from busbars.Form 3aTerminals for externalconductors separatedfrom busbars.Terminals for externalconductors in samecompartment asassociated functionalunit.Separation of busbarsfrom the functionalunits and separationof all functional unitsfrom one another,including the terminalsfor external conductorswhich are an integralpart of the functionalunit.Type of constructionForm 1Terminals for externalconductors notseparated from busbars.Separation of busbarsfrom the functional units.FormType 1 Busbar separation is achieved byinsulated covering e.g. sleeving, wrapping orcoatings.Type 2 Busbar separation is by metallic ornon-metallic rigid barriers or partitions.Form 3bType 1 Busbar separation is achieved byinsulated coverings, e.g. sleeving, wrappingor coatings.Type 2 Busbar separation is by metallic ornon-metallic rigid barriers or partitions.Type 1 Busbar separation is achieved byinsulated coverings, e.g. sleeving, wrapping orcoatings. Cables may be glanded elsewhere.Form 4aType 2 Busbar separation is by metallicor non-metallic rigid barriers or partitions.Cables may be glanded elsewhere.Type 3 Busbar separation is by metallic ornon-metallic rigid barriers or partitions. Thetermination of each functional unit has its ownintegral glanding facility.Type 4 Busbar separation is achieved byinsulated coverings, e.g. sleeving, wrapping orcoatings. Cables may be glanded elsewhere.Terminals for externalconductors not in samecompartment as theassociated functionalunit, but in individual,separate, enclosedprotected spaces orcompartments.Form 4bType 5 Busbar separation is by metallicor non-metallic rigid barriers or partitions.Terminals may be separated by insulatedcoverings and glanded in common cablingchamber(s).Type 6 All separation requirements are bymetallic or non-metallic rigid barriers orpartitions. Cables are glanded in commoncabling chamber(s).Type 7 All separation requirements are bymetallic or non-metallic rigid barriers orpartitions. The termination for each functionalunit has its own integral glanding facility.4

No internal separation.Form 1Separation of busbars from the functional units.Terminal NOT separated from busbars.Form 2aSeparation of busbars from the functional units.Terminals separated from busbars.Type 1: Busbar separation by insulated coverings e.g. sleeving,wrapping or coatings.Type 2: Busbar separations by metallic or non metallic rigidbarriers or partitions.Form 2b - Types 1 & 2Separation of busbars from the functional units.Separation of functional units from one another.Separation of terminals from functional units but not from eachother.Terminals NOT separated from busbars.Form 3aForm 3b - Types 1 & 2Separation of busbars from the functional units.Separation of functional units from one another.Separation of terminals from functional units but not from eachother.Terminals separated from busbars.Type 1: Busbar separation by insulated coverings e.g. sleeving,wrapping or coatings.Type 2: Busbar separations by metallic or non-metallic rigidbarriers or partitions.5

Separation of busbars from the functional units.Separation of functional units from one another.Separation of terminals of functional units.Terminals in same compartment as functional units.Type 1: Busbar separation by insulated coverings e.g. sleeving,wrapping or coatings. Cables glanded elsewhere.Type 2: Busbar separations by metallic or non metallic rigidbarriers or partitions. Cables glanded elsewhere.Form 4a - Types 1 & 2Type 3: All separation by metallic or non-metallic rigid barriersor partitions. The terminals for each functional unit have theirown integral glanding facility.Form 4a - Type 3Form 4b - Types 4, 5 & 6Separation of busbars from the functional units.Separation of functional units from one another.Separation of terminals of functional units.Terminals NOT in same compartment as functional unit.Type 4: Busbar separation by insulated coverings e.g. sleeving,wrapping or coatings. Cables glanded elsewhere.Type 5: Busbar separations by metallic or non metallic rigidbarriers or partitions. Terminals separated by insulated coverings.Cables glanded in common cabling chamber.Type 6: All separation by metallic or non-metallic rigid barriersor partitions. Cables glanded in common cabling chamber.Type 7: All separation by metallic or non-metallic rigid barriersor partitions. The terminals for each functional unit have theirown integral glanding facility.Form 4b - Type 76

Symbol keysDEGREES OF PROTECTIONIEC 60529 describes the test conditions for the IP 54 protection as laid down in Sub-clause 7.5(first characteristic numeral) and Sub-clause 8.4 (second characteristic numeral).The following extract form the Standard gives an idea, but for more detailed information, pleasesee this.DEGREE OF PROTECTIONFirst characteristicnumeralShort descriptionSecond characteristicnumeralShort description0Non-protected0Non-protected1Protected against solidobjects greater than 50 mm1Protected against drippingwater2Protected against solidobjects greater than 12 mm2Protected against drippingwater when tilted up to 15 3Protected against solidobjects greater than 2.5mm3Protected against sprayingwater4Protected against solidobjects greater than 1 mm4Protected against splashingwater5Dust-protected5Protected against water jets6Dust-tight6Protected against heavysea7

IEC 60439-1: 1999, Annex D, gives the following guidelines for the different separation types. One of more of the following conditions can be obtained by dividing ASSEMBLIES by mean of partitions or barriers (metallic or non-metallic

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