Enclosure Form of Segregation
description
Transcript of Enclosure Form of Segregation
Modis 25 LV Modular Distribution System
http://energy.tycoelectronics.comEnergy Division
Modis 25 LV Modular Distribution System
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FeaturesFully Type Tested options in accordancewith EN 60439-1
ASTA Certified
Form 1 to Form 4b Type 6
Horizontal busbars up to 2500A
Wide range of busbar fault ratingoptions
Fully extendable at either end
Front or rear access with cable entriestop or bottom to suit application
Compact modular design
ACB, MCCB, Fuse Combination Switchand MCB options
BenefitsImproved stacking densities
Complete range of devices ensuresLoadframe is suitable for any L.V.application
Cost Effective
ApplicationsL.V. Power Distribution
Industrial environments
Commercial environments
Public Buildings
ApprovalsBS EN60439-1
EN 60439-1
IEC 60439-1
ISO 9001
EN 60529
IEC 60529
The Modis family of self-assembly switchboard systems comprehensively covers allLV switchboard requirements up to 2500A (1.8MVA). This range of Type TestedAssemblies is more than capable of satisfying individual customer needs for thecontrol of power in any commercial or industrial application. When fitted withLoadswitch, Loadline or Loadlimiter XS components Modis 25 ensures that DormanSmith Switchgear offers a complete system solution.
Modis 25 fully complies with EN 60439-1 and can be assembled in a variety of optionsfrom a simple Form 1 switchboard through to complex Form 4b Type 6 installations.Designed with product performance, cost effectiveness and user choice in mind Modis25 has a wide variety of busbar arrangements capable of carrying many currentratings for a broad range of breaking capacities and withstand times. Innovativefeatures can be found throughout Modis, from divisible frames that reduce thenumber of actual sections required to comprise a switchboard through to a highlyversatile, patented busbar support system. The benefits of such features provideadvantages in the simplicity of build and installation.
Contents Page No.
Technical Specification 2-3
General Information 4-5
Internal Components – Dorman Smith 6
Internal Components – Crompton Instruments 7
Internal Components – Bowthorpe TVSS 8
Forms of Separation 9-11
Ingress Protection 12
Type Testing 13
Dimensional Guide 14-15
Company Profile 16
Modis 25 Technical Specification
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Product: Modis 25
Name of Supplier: Tyco Electronics/Dorman Smith SwitchgearBlackpool RoadPreston PR2 2DQ UK
Quality Certificate of Manufacturer: ISO9001
Country of Origin: England
Type of Product: L.V. Switchboard (TTA)
Standards: BS EN 60439-1 : 1999EN 60439-1 : 1999IEC 60439-1 : 1999
Form of Separation: Compliance to EN 60439-1 : 1991 Forms 1, 2, 3 & 4 as appropriate to specific project. National Annex accommodated
Designation: Type Tested Assembly
IP Rating: External IP3X as standard to IEC 529 : 1989 and IEC 60529 : 1989
IP Rating: Internal IP2X minimum to above named standards
Construction: Frame Structure 2mm gauge folded steel
Construction: Cover Plates 1.6mm screen fixed sheet steel
Construction: Internal Segregation Aluzinc perforated sheet steel or transparent polycarbonate sheet
Cabling Access: Suitable for front or rear access cabling. Entry via gland plates that facilitate either top and/or bottom entry
Terminal Identification and Marking: By assembler
Busbars: Material HDHC Copper. Multiple laminations per phase
Busbars: Mounting 4-pole air insulated mounted in glass fibre reinforced moulded supports
Modis 25 Technical Specification
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Busbars: Shielding Non-conductive rigid insulated barriers or rigid sheet steel barriers
Busbars: Maximum Current and Fault Withstand Ratings 1250 – 2500A: 50kA for 3s (Optional 50kA for 1s)2500A: 80kA for 1s
Switchboard Certification Bodies
Type Testing Independent Certification: ASTA
• Temperature Rise ASTA
• Dielectric Properties ASTA
• Short Circuit withstand Strength ASTA
• Effectiveness of Protective Circuit ASTA
• Clearance and Creepage Distances ASTA
• Mechanical Operation ASTA
• Degree of Protection ASTA
Earthing: Earth bar sized at 300mm2 for 50kA for 1s fault level and 500mm2 for 50kA for 3s and 80kA for 1s fault levels. Earth continuity of cladding is maintained by fixing screws specifically designed for this purpose
Rated Operational Voltage: 415V
Rated Insulation Voltage: 690V
Power Frequency Withstand Voltage: 2500V
Rated Operational Current Ie: Project specific
EMC Emissions Compliance with appropriate EN/IEC standards for the design and manufacture of Modis 25 and it’s complementary products means we are not required to comply with EN 50081 and EN 50082 as the individual standards make reference to comply with EMC emissions requirements
Labels: Assemblers Standard
Paint Finish: Colour light grey RAL 7035 semi gloss
Paint Depth: 40/60 Microns
Paint Process: 4-stage process of chemical spray degreasing, iron phosphate coating, automatic electro-static epoxy polyester film application and curing in a high temperature controlled oven
Detail of Modis 25 Utilising Loadswitch
Devices
What is Modis?The concept for Modis was to develop a complete system solution for the OEMcustomer.
In addition to products we can also provide the customer with all necessary support aidsto take the product to market.
The product offering comprises of;
• Protection Devices – Circuit Breakers and Fuse Switches• Busbar Systems• Cubicle sections
- Pre-formed identified solid copper interconnections (to maintain integrity of Type Tests)• Distribution / Control Equipment• Instrumentation (via Crompton Instruments)• Surge Arrestors (via Bowthorpe TVSS)
All component parts will be supplied in recyclable packaging and packed with userconvenience in mind. Each delivery would be logically arranged so that the firstcomponents required for the assembly would be located in the top collar section and soforth. This improves assembly times and negates the need for the assembler to unpackeverything prior to commencement of assembly.
The support packages include;
• Estimating Software (ModisCAD)• Comprehensive Assembly Instructions• Discrimination Software• Full Literature and Marketing• Standard Package O&M Manuals• Full Type Test Certification to EN 60439-1
Scope of UseThe versatility of Modis 25 ensures that the products can be used as the ideal solutionfor the following applications;
• Main Switchboards• Sub-Main Switchboards• Package Substations• Changeover Systems• PLC Controlled “Intelligent” Switchboards• Motor Control Centres
Available technologies can, when selected, permit communication between theswitchboard and building / energy management systems.
Life ExpectancyThe life expectancy of a Switchboard is inherently dependant on the frequency of use ofthe devices installed within it.
Frequent use is usually defined as less than 5 times a day for a small device (i.e. up to100A) and once a week for a larger device. Therefore, for example, a 200A fuse switchbeing switched once a day would have a life expectancy of at least 22 years.
The switchboard and devices installed in it require no maintenance other than theactions recommended below.
Fault Rated Busbars
Unclad End View
Modis 25 General Information
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Modis 25 General Information
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Storage and TransportationWe would not anticipate any degradation of components in the event of theswitchboards being transported or placed into storage prior to installation providing thatthe storage area was reasonably dust and damp free and maintained, as stated inEN60439-1: 1999 Section 6.3.1 at a temperature between -25°C and +55°C. The averagetemperature over short periods should not exceed 24 hours up to +70°C. In the event ofthis being the case we would recommend that the switchboard sections are wrapped inhigh-grade PVC sheaths (which would be supplied by ourselves) and protected againstany further accidental damage by rigid barriers i.e. wood casings. In addition to theabove it would be preferable if the anti-condensation heaters (if fitted) were powered upand thermostatically set if the period of storage was to be prolonged. This would ensurethat the switchboards are stored in an environment very similar to operating conditionsAs an alternative to anti-condensation heaters fitted within the switchboards theprovision of a thermostatically controlled wall heater located within the storage areawould assist with the temperature regulation within the switchboards. In the event ofany switchboard being designated for prolonged storage containing lead acid batterieswe would advise that all necessary precautionary measures in line with the batterymanufacturer's recommendations are taken.
Component StorageDorman Smith would not anticipate any degradation of any components in the event ofthe them being placed into storage prior to assembly, providing that the storage areawas maintained as described in the above paragraph relating to switchboard storage.
InstallationA major benefit of the Modis 25 design is it’s physical strength. A typical section iscapable of carrying over 1200kg without distortion. The practical benefit of this is that,when assembled, it can be shipped to site in multiple sections, where site conditionspermit, to reduce installation times.
PositioningWhen positioning the assembled switchboards into their final position we recommendthat the floor level should have a tolerance of +/- 2mm per metre.
Operating TemperaturesIn accordance with EN60439-1:1999 Section 6.1.1.1 the maximum ambient operatingtemperature should not exceed +40°C or the minimum ambient be less than a lowerlimit of -5°C at any point in time. The average temperature over a 24 hour period shouldnot exceed +35°C
Atmospheric ConditionsSection 6.1.2.1 of EN60439-1:1999 states that for indoor installations the air should beclean and have relative humidity not exceeding 50% at a maximum temperature of+40°C. Higher relative humidities may be permitted at lower temperatures, for example90% at +20°C. Care should always be taken to moderate condensation which mayoccasionally occur due to variations in temperature.
Routine MaintenanceWe would recommend that all switchboards are periodically inspected for the tightnessof all current carrying connections (i.e busbar links). Additionally, the switchboard coverplates can be cleaned with a light solvent such as is typically found in ordinarydetergents. This action would reduce the long term build up of dust and dirtsurrounding the unit. Specific information relating to the maintenance of ourswitchboards is contained within the main O&M manual that is supplied post order.Routine maintenance recommendations for individual component parts will be asdetailed in the relevant documentation relating to the particular product.
SeminarsEN60439-1 can seem a complicated standard to understand as it covers a wide range oftopics that relate to switchboard design. To assist in understanding specific topicsDorman Smith offers a wide range of free technical seminars and training which coverall aspects of the standard from Type Testing through to an explanation of the Forms ofSeparation. If you wish to arrange any of these seminars please contact either your localsales contact or the main office.
Interconnecting Sections Step 1
Interconnecting Sections Step 2
Interconnecting Sections Step 3
Modis 25 Internal Components
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Dorman Smith Circuit Protection DevicesModis has been designed to utilise Tyco products for all aspects of control, protection,monitoring and communications. All devices are designed to comply with theappropriate IEC standard and manufactured to ISO 9001 procedures. A brief synopsis ofthe available devices is given below;
MCBs: Loadlimiter XSA comprehensive range of MCBs, featuring B, C & D characteristics, with a current rangespanning from 6A to 63A. In addition to the single pole, double pole, triple pole and fourpole devices a complete range of complementary RCBOs and RCCBs is available. Fullycompliant with EN 60898 the Loadlimiter XS range is the ideal choice for final circuitprotection within any switchboard or distribution scheme. Note that a detailed range ofenclosure systems are also available for instances where final circuit distribution boardsare sited remote from the actual switchboard.
MCCBs: Loadline Y-FrameThe Loadline Y-Frame MCCB range spans current ratings from 20A to 1600A and iscomplemented by a comprehensive range of accessories. All devices comply with IEC60947-2 and EN 60947-2. The Y-Frame series has been introduced to meet increasingmarket demands for higher breaking capacities with the option of thermal / magnetic orelectronic trip unit protection. The electronic variants feature selectivity utilisationcategory B throughout and can read up to the 19th harmonic. The thermal / magneticdevices are unaffected by harmonic distortion. The range is completed by a series ofgenerator MCCBs and a range of temperature calibrated thermal / magnetic devices foruse in tropical climates
ACBs: Loadline Z-FrameThe Z-Frame is the latest step in development of the Dorman Smith product portfolio.The Z-Frame range utilises unique technologies and features a high number of patentedinnovations that make this family of ACBs one of the leaders in it’s class. All devicescomply with IEC 60947-2 and EN 60947-2. The range spans a current rating spectrumfrom 800A to 4000A in just 3 Frame sizes. A 6300A variant is available for use withinLoadframe 63. The units are available as 3-Pole and 4-Pole variants and offer the userthe choice of fixed or withdrawble pattern chassis’. The ACBs are complemented with awide range of accessories ranging from simple key locks to intelligent trip units offeringdata measuring and communication facilities.
Fuse Combination Units: LoadswitchLoadswitch has been designed to exceed the requirements of BS EN 60947-3 and tooffer solutions demanded by our customers where ease of installation and everincreasing cable sizes are required. A full-uninterrupted duty ensures that the unit canmaintain full rated load indefinitely. A utilisation category of AC23A and short-circuitcapacity of 80kA enables Loadswitch to be installed with confidence on any inductive orresistive load. The robust steel enclosure of the housed variant is finished in epoxypowder coating light grey RAL 7035 and has a door that will open through 180 degreesfor ease of access with padlocking off as standard. Up to three padlocks can be attachedwith ease. Cable spreading room (which can easily be reversed by the installer) isallowed for at the bottom of the housed unit.
Further details of these products can be found in the appropriate product catalogues.
Loadlimiter XS MCBs
Loadline Y-Frame MCCBs
Loadline Z-Frame ACBs
Loadswitch Fuse Combination Units
Modis 25 Internal Components
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Crompton Instruments Power Measurement, Control and Protection SolutionsCrompton Instruments offer an extensive range of products designed for themeasurement, control, analysis and communication of power and energy consumption,and power quality data. Crompton has earned a world wide reputation for innovation,quality, service and technical expertise for a diverse array of industries and applications.Crompton Instruments are the default choice of instrumentation and powermeasurement in all Modis assemblies.
Integra Digital Metering SystemsA comprehensive range of fully programmable, high accuracy multi function digitalmetering systems offering measurement, display and communication for all powermonitoring applications, including true RMS system values, power quality data and totalharmonic distortion measurement. To suit requirements, Integra products offer variousoutput options and case styles with high quality LED or LCD display.
Kilowatt Hour Energy MetersAn innovative range of panel mounted or DIN rail mounting meters ideal for monitoringenergy consumption. These self contained meters offer combined kW.h or kVAr.henergy measurement, with pulsed or analogue output options and selectable CT and VTratios, thus replacing the need for rotating disc meters and separate instantaneouswattmeters.
Paladin and Integra TransducersAn extensive range of high specification transducers providing measurement, isolationand conversion of electrical parameters into industry standard DC output signals, RS232and Modbus. The range offers protection against high voltage and overload, andresistance to vibration.
Protector Trip RelaysA comprehensive range of electronic control products providing continuous monitoringand protection of any electrical parameter. Designed to suit a wide variety ofapplications, the range offers both traditional and technologically advanced products,including single parameter units, earth leakage protection, ground fault protection,vector shift and ROCOF, and sophisticated multifunctional microprocessor based systemprotection relays.
Meter RelaysA comprehensive range of digital and analogue meter relays, and digital bargraphindicators and controllers offering measurement, monitoring and control of anyelectrical or process parameter. Relays combine a highly accurate indicator with highand low set points, which operate alarm and control circuits when the monitored signalvalue deviates from the set point limits, ideally suited for process control and loadshedding applications.
Digital IndicatorsA highly versatile range of digital indicators providing accurate measurement and clearindication of AC and DC current, voltage and frequency. The range offers LED and LCDdigital indicators, and bargraph indicators and controllers ideally suited for controlpanels and switchboards, monitoring systems, power generation and controlapplications.
Analogue InstrumentsHigh quality analogue instruments designed to measure an extensive range of electricaland electronic parameters. Instruments are precision engineered and robust in design,ensuring accurate measurement and display in the most demanding of environments.This extensive range offers various styles, sizes and specifications to meet the exactingneeds of industry.
Further details of these products can be found in the appropriate product catalogues.
Integra Digital Metering Systems
Paladin Transducers
Meter Relays
Analogue Instruments
Modis 25 Internal Components
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Bowthorpe Transient Voltage Surge Suppression Protective DevicesBowthorpe EMP TVSS specialises in surge protectors for Mains Power, Voice and DataSystems for applications in the computer, telecommunication, industrial, oil, medicaland professional electronics markets. An extensive range of products is available tomeet an extraordinary range of demanding applications and diverse power andcommunication system environments around the world. Bowthorpe offer a co-ordinatedsystem for total site protection, which is designed to provide comprehensive protectionat a reasonable cost. This co-ordinated strategy begins where power andcommunication lines enter a building and ends with special devices for extremelysensitive or critical equipment. All protection products and components are designedand manufactured to BS6651 and other International Standards. Bowthorpe TVSScomponents are the default choice of TVSS in all Modis assemblies.
Modular Distribution Surge ProtectorsA range of distribution panel protectors for single and three phase power systems,featuring exceptionally high surge handling capabilities of 90, 150 and 300kA. The MDSPis intended for high lightning exposure areas and critical systems where long life andlow maintenance are required.
Modular Distribution Surge ProtectorsNormally open and normally closed relay contacts provide remote indication ofprotection status. Models with Silicon Avalanche Diode Modules (SAD) with extremelylow clamping and exceptionally fast response times are particularly suited to mobiletelecom applications.
Distribution Surge ProtectorThese general purpose, hardwired single and three phase distribution panel protectorswith 30kA of surge capacity and two stage (redundant) protection provide pre-failureindication. DSP600 Series ‘L’ & ‘N’ types have site fault condition indicators and relaycontacts, which provide remote indication of protection status.
Sub Panel Protectors Surge protection for sub-distribution panels which supply mission-critical hardware suchas mini-computers, PABX systems, network file servers and mainframes is availablefrom the compact 10kA 6651C Protector. This hardwired, panel mounting surgeprotector with redundant protection and full protection status monitoring is available insingle and three phase versions.
Further details of these products can be found in the appropriate product catalogues.
Lightning and Surge Protection to BS6651
Modular Distribution Surge Protectors
Distribution Surge Protector
Sub Panel Protectors
Modis 25 Forms of Separation
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Form 1
Form 4A Type 2
Form 4B Type 6
Form 4 Internal Shielding Form1 Internal Shielding
Fundamentals of SeparationIn accordance with EN60439-1, separation of the various elements of an Assembly:busbars, functional units, terminals, can be claimed providing one or more of thefollowing criteria are met:
1. Protection against contact with live parts belonging to adjacent functional units. The
degree of protection shall be at least IP2X or IPXXB.
As a minimum, finger contact with live parts in adjacent functional units is prevented.With Assemblies supplied by Dorman Smith Switchgear this is extended to includeprotection against finger contact between: functional units, adjacent busbars and busbarconnections, and terminals as required for the particular form of separation beingconsidered.
The requirement is proven with the standard test finger.
2. Protection against the passage of solid foreign bodies from one unit of an Assembly
to an adjacent unit. The degree of protection shall be at least IP2X.
The minimum requirement is proven by the standard test finger not being able to touchlive parts in adjacent units and a 12mm ball not being able to pass between units.
In practice, a higher degree of protection may be required for horizontal partitions toprevent small objects from falling between compartments and should be identified inthe contract specification.
These two fundamental criteria are interrelated. Dorman Smith Switchgear will thereforeensure all these are fully met in respect of the particular form of separation offered.
Typical ApplicationsForm 1 - No separation
Typical applications are places where the switchboard is in a secure location and wherefailure of the switchboard will cause little or no additional disruption to other areasbeing fed by the switchboard.
Form 2 - Separation of busbars from functional units.
Applications may well be the same as Form 1 but where it is important that a fault in theswitchboard need not affect all functional units being fed from the same busbar system.
Form 3 - Separation of busbars from functional units and the functional units from one
another but not their terminations.
Should be applied where it is important to provide protection from internal live partsand where failure of functional units being fed from the same busbar would causeunacceptable disruption.
Form 4 - Separation of busbars from functional units and the functional units from one
another including their terminations.
Should be applied where it is important to provide protection from internal live partsand where failure of functional units being fed from the same busbar would causeunacceptable disruption. Because all the terminations are separated it is possible toisolate and work on a single functional unit.
Modis 25 Forms of Separation
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UK National AnnexThe internal separation of Assemblies by barriers or partitions is specified in Section 7.7 of EN60439-1: 1999 and is subject toagreement between the manufacturer and the user.
The table below gives additional information regarding different types of construction, based on typical practice in the UnitedKingdom. Other types of construction are not precluded, and it is not essential to adopt any of the listed types in order to comply withthe requirements of the Standard.
However, in order to achieve agreement between manufacturers and users, it is recommended to adopt one of the listed types ofconstruction.
Main Criteria
No separation
Separation of busbars from the functional units.
Separation of busbars from the functional units and separation of all functional units from one another. Separation of the terminals for external conductors from the functional units, but not from each other.
Separation of busbarsfrom the functional units and separation of all functional units from one another, including the terminals for external conductors which are an integral part of the functional unit.
Form
Form 1
Form 2a
Form 2b
Form 3a
Form 3b
Form 4a
Form 4b
Sub Criteria Type of Construction
Type 1 Busbar separation is achieved by insulated covering,e.g. sleeving, wrapping or coatings
Type 2 Busbar separation is by metallic or non-metallic rigidbarriers or partition.
Type 1 Busbar separation is achieved by insulated coverings,e.g. sleeving, wrapping or coatings
Type 2 Busbar separation is by metallic or non-metallic rigidbarriers or partitions.
Type 1 Busbar separation is achieved by insulated coverings,e.g. sleeving, wrapping or coatings. Cables may be glanded elsewhere.
Type 2 Busbar separation is by metallic or non-metallic rigidbarriers or partitions. Cables may be glanded elsewhere.
Type 3 Bushbar separation is by metallic or non-metallic rigid barriers or partitions. The termination for each functionalunit has its own integral glanding facility.
Type 4 Busbar separation is achieved by insulated coverings, e.g. sleeving, wrapping or coatings. Cables may beglanded elsewhere.
Type 5 Busbar separation is by metallic or non-metallic rigid barriersor partitions. Terminals may be separated by insulated coverings and glanded in common cabling chamber(s).
Type 6 All separation requirements are by metallic ornon-metallic rigid barriers or partitions. Cables are glanded in common cabling chamber(s).
Type 7 All separation requirements are by metallic or non-metallicrigid barriers or partitions. The termination for each functional unit has its own integral glanding facility.
Terminals for external conductors not separated from busbars.
Terminals for external conductors separated from busbars.
Terminals for external conductors not separated from busbars.
Terminals for external conductors separated from busbars.
Terminals for external conductors in the same compartment as the associated functional unit.
Terminals for external conductors not in the same compartment as associated functional unit, but in individual, separate, enclosed protected spaces or compartments.
Modis 25 Forms of Separation
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Form 4a Type 2
Form 4b Type 6
IncomingUnit
OutgoingUnits
OutgoingUnits
OutgoingUnits
IncomingCable
OutgoingCables
OutgoingCables
IncomingUnit
OutgoingUnits
OutgoingUnits
OutgoingUnits
IncomingCable
OutgoingCables
OutgoingCables
Compartment
Modis 25 Ingress Protection
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External Shielding to IP3X Minimum
Internal Segregation of Z-Frame ACB
The markings used to indicate the degreeof protection consist of the letter IP(Ingress Protection) followed by twocharacteristic numerals. The firstcharacteristic numeral designates thedegree of protection with regards to solidobjects. The second numeral designatesthe degree of protection against theingress of liquid.
It is intended to provide indication of:
a) Protection of persons against access to hazardous parts inside enclosures and protection of the equipment inside the enclosure against the ingress of solid foreign objects.
b) Protection of the equipment inside the enclosure against harmful ingress of water.
For switchboard assemblies intended forindoor use EN60439-1 : 1999 states thatthere is no requirement for protectionagainst ingress of water (clause 7.2.1.1)and that the IP references preferred forassemblies designated for indoor use are:
IP00 IP2X IP3X IP4X IP5X
Where some degree of protection against ingress of water is required the following tablegives the preferred IP combination numbers:-
Second Number – Protection Against Liquids
IP Example Protection Against Protection From
Liquids - Tests Water
0 No protection. Non-protected
Protection against verticallyProtection against
1falling drops of water.
vertically falling dropsof water
Protection against vertically Dripping up to 15° from2 falling drops of water with enclosurethe verticaltilted 15° from the vertical.
Protection against sprays to 60°3 from the vertical - limited Limited spraying
ingress permitted.Protection against water splashed
Splashing from all4 from all directions - limited directionsingress permitted.
Protected against low pressure jetsHosing jets from all5 of water from all directions - limiteddirectionsingress permitted.
Protected against strong jets of Strong hosing jets from6 water, eg. for use on shipdecksall directionslimited ingress permitted.
Protected against the effects of7immersion between 15cm and 1m.
Temporary immersion
Protected against long periods of8immersion under pressure.
Continuous immersion
15cm min.
IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII
IIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIII
50
IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII IIIIIIIIIIIIIIII IIIIII
IIII
IIIIIIIIIIIIIIIIIIIIII I IIIIIIIIIIIIIIII
12.5
IP RatingsEN 60529 : 1991 describes a system for classifying degrees of protection provided byenclosures of electrical equipment with a rated voltage not exceeding 1000V ac and1500V dc.
First Number – Protection Against Solids
IP Example Protection Against Solid Protection of Persons
Foreign Objects - Tests Against Access To
Hazardous Parts With:
0 No protection. Non-protected
Full penetration of 50mm
1diameter sphere allowed.Contact with hazardous parts
Back of hand
not permitted.Full penetration of 12.5mm diameter sphere not allowed.
2 The jointed test finger shall Fingerhave adequate clearance from hazardous parts.
The access probe of 2.5mm3diameter shall not penetrate.
Tool
The access probe of 1.0mm 4diameter shall not penetrate.
Wire
Limited ingress of dust permitted5(no harmful deposit).
Wire
Totally protected against6ingress of dust.
Wire
Modis 25 Type Testing
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LV Switchboard StandardsThe standard to which LV Switchboards should be manufactured to is EN60469-1. Thestandard is non prescriptive and allows for manufacturers to be innovative while fullymeeting the standard and, most importantly, providing the user with the equipmentrequired. The standard details two categories of assembly, Type Tested (TTA) andPartially Type Tested (PTTA).
The definitions for these are as follows;
An Assembly: “A combination of one or more low voltage switching devices togetherwith associated control, measuring, signalling, protective, regulating equipment etc.,completely assembled under the responsibility of the manufacturer with all the internalelectrical and mechanical interconnections and structural parts”
Assemblies are likely to be produced for specific customers and who may specifyequipment to their own specifications and requirements. Hence the phrase “byagreement between manufacturer and user” is used throughout the standard.
Type Tested Assembly: “A low voltage switchgear and controlgear assemblyconforming to an established type or system without deviations likely to significantlyinfluence the performance, from the typical ASSEMBLY verified to be in accordance withthis standard”
Partially Type Tested Assemblies: “A low voltage switchgear and controlgear assembly,containing both type-tested and non-type-tested arrangements provided the latter arederived (e.g. by calculation) from type-tested arrangements which have complied withthe relevant tests”
Why Type-Test?EN60439-1 States:
“Type tests are intended to verify compliance with the requirements laid down in thisstandard for a given type of ASSEMBLY.
Type tests are carried out on a sample of such an ASSEMBLY or on such parts ofASSEMBLIES manufactured to the same or similar design.
They shall be carried out on the initiative of the manufacturer”
The standard also requires switching devices and other components to comply withtheir own relevant standards.
Type tests for assemblies are carried out for;
• Verification of Temperature Rise• Verification of Dielectric Properties• Verification of Short Circuit Withstand Strength• Verification of the Effectiveness of the Protective Circuit• Verification of Clearances and Creepage Distances• Verification of Mechanical Operation• Verification of the Degree of Protection
They are intended to;
• Prove the design capability• Be conducted on representative samples for the design of Assembly, but are not
intended to be undertaken on an Assembly which is subsequently put into service• Be undertaken at the instigation of the manufacturer. It is recognised that it is
impractical to test every conceivable configuration of circuit within an Assembly• Be tested either in the manufacturer’s own laboratory or at an independent facility• Have results recorded in reports or certificates that are available for examination
Modis and Type TestingIn accordance with the guidelines of the governing specifications for Dorman SmithModis, all type test certificates are valid for all Modis Systems, irrespective of assembler,provided that they are constructed in accordance with our assembly instructions.
Modis 25
Typical Arrangement Showing Available
Cabling Space
Loadswitch Cabled to EN60439-1
Form 4A Type 2
Detail Illustrating Vertical and
Horizontal Busbar Arrangement
Modis 25 Dimensional Guide
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600
H.BAR 1600A
INTEGRA M-100
MF
DRAWOUT
1600A TPN ACB
OCRLSI
MANUAL
630A
800AMCCB Y6H
400AMCCB Y5H
125A
MCCB Y2HX125A
MCCB Y2H
20A
MCCB Y2H
250A
MCCB Y3H
315A
VE
RT
BB
VE
RT
BB
160A
63A
H.BAR 1600A H.BAR 1600A
600500
IncludesHorizontal Busbars
IncludesHorizontal Busbars
TYPICAL EXAMPLE FRONT ELEVATION
PLAN VIEW
TOP BUSBARS FRONT ELEVATIONNote: Busbars can be mounted at the top or bottom of cubicles
BOTTOM BUSBARS FRONT ELEVATIONNote: Busbars can be mounted at the top or bottom of cubicles
SIDE ELEVATION
500 500
2500ABUSBARS
1600ABUSBARS
1600ABUSBARS
800 600 500 800 600 500
600 600500 500 500
410 410 410 510510
Cubicle Depth B
Cub
icle
Dep
th B
4545
1984
45
2500ABUSBARS 1600A
BUSBARS1600A
BUSBARS
30Modules
Usable Space
27 Modules
24 Modules
21 Modules
Usable Space
30 Modules
27 Modules
24 Modules
Usable Space
30 Modules
27 Modules
24 Modules
Usable Space
27 Modules
24 Modules
21 Modules
Usable Space
30 Modules
27 Modules
24 Modules
Usable Space
30 Modules
27 Modules
24 Modules
Cubicle Heights
2536mm
2170mm
1984mm
45
Cubicle Heights
2536mm
2170mm
1984mm
45
Modis 25 Dimensional Guide
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750mm Deep (B) 1000mm Deep (B)
Cubicles 2356, 2170, 1984mm High 500mm Wide 600mm Wide 800mm Wide 500mm Wide 600mm Wide 800mm Wide
Rear Access * * * * * *Fuse Switch 200A-800A * * * * * *Y Frame MCCBs Y2-Y5 * * * *Y Frame MCCBs Y6 * *Z Frame ACBs Z2 up to 2000A * *Z Frame ACBs Z3 up to 2500A * *Horizontal Busbars 1250, 1600, 2500A * * * * * *
500mm Deep (B) 750mm Deep (B)
Cubicles 2356, 2170, 1984mm High 500mm wide 600mm wide 800mm wide 500mm wide 600mm wide 800mm wide
Front Access * * * * * *Fuse Switch 200A-800A * * * * * *Y Frame MCCBs Y2-Y5 * * * *Y Frame MCCBs Y6 * *Z Frame ACBs Z2 up to 2000A * *Z Frame ACBs Z3 up to 2500A *Horizontal Busbars 1250, 1600, 2500A * * * * * *Cableways * * * *
Vertical Busbars Front/Rear Access Height 500mm wide 600mm wide 800mm wide
1250/1600A 6 Mod to 30 Mod * * *2500A 6 Mod to 27 Mod * *
Cubicles
Devices
Y2 Y3 Y5 MCCBs asstandard are mountedin 500w cubicles LH orRH side
MCCBs 1 Mod = 62mm A filler plate is requiredfor 600w mounting
Y6 MCCBs 600w cubicleonly
Y2 Frame 3 ModY3 Frame 3 ModY5 Frame 6 ModY6 Frame 6 Mod
ACBs 1 Mod = 62mm
Z2 Frame 800/2000A 10 Mod 600 wide sections onlyZ3 Frame 2500A 10 Mod 800 wide sections only
All fuse switches asstandard are mountedin 500w cubicles LH orRH side
Fuse Switches 1 Mod = 62mmA filler plate is requiredfor 600w mounting
63/200A 3 Mod315/400A 6 Mod630/800A 12 Mod
Company Profile
16
Dorman Smith SwitchgearPedigree
Since 1878 Dorman Smith products have been associated with high qualitydevelopments in all aspects of electrical switchgear. Historically, the company was apioneer in the introduction of both fuse switch and moulded case circuit breakertechnologies. Latterly, Dorman Smith was at the forefront of the utilisation of PLCcontrol systems that provided intelligent switching of control circuits.
Product Portfolio
The Dorman Smith product portfolio caters for a wide range of applications covering acurrent span of 6A to 6300A. The range which encompasses MCBs, MCCBs, FuseCombination Units, ACBs and all associated enclosure systems caters for the distributor,contractor, end client and OEM markets. The range offers proven reliability across adiverse array of industries including power generation, process control, industrial,commercial, utility, defence and energy management applications.
Design and Development
To meet the challenges of ever decreasing lead times and industry developments ourdesign and manufacturing processes are constantly reviewed and updated. DormanSmith is committed to continual product development and improvement. In addition tothe mainstream product developments the company has been involved in thedevelopment of strategic customer partnerships for the supply of bespoke designsolutions.
Global Reach
Under the Tyco banner, Dorman Smith now has a global presence enabling promptresponse to customer requirements and regional specific technical expertise andapplication advice. The combination of local knowledge and over 120 years of researchand product development ensures Dorman Smith products continue to provide thehighest standards of performance and user convenience.
ManufacturingThe quality and reliability of Dorman Smith products is achieved through highlyinnovative manufacturing techniques, implemented by a multi skilled and flexibleworkforce.
Quality Systems
Dorman Smith design and manufacturing processes have ISO 9001 accreditation and allproducts carry the appropriate BS, EN and IEC approvals. Computer technology aidsDorman Smith designers to develop new products in harmony with customerrequirements and to exceed the demands of international standards.
Product Control
All aspects of the manufacturing processes are vigorously controlled. To obtainconsistently high levels of productivity and service the company operates Kanbancontrol systems in conjunction with a fully integrated business computer system. Thissystem provides the opportunity to delegate routine material transactions in themanufacturing cells and ensures a fast, reliable and cost effective method ofmanufacture.
All the above disciplines enable Dorman Smith to provide the customer with atechnically capable product at a competitive market rate.
About Tyco Electronics Energy DivisionThe Energy Division, a global manufacturer of products and systems for the electricalpower industry, is an operating unit of Tyco Electronics. Today, the Energy Divisionemploys more than 3000 people and has total annual sales of over $500 million. Powerutilities and equipment manufacturers extensively employ our products, in rail transportsystems and in industry around the world.
Our global network of technical and sales representatives provides expert applicationand engineering assistance, hands–on field training and strong after sales support.Expertise in materials science, product design and process engineering goes into theinvention, development, manufacture and marketing of high performance products thathelp our customers successfully master the challenges of their businesses. Our widerange of reliable and cost-effective solutions is continuously expanded through newproduct developments and the integration of new product lines from companies thatmake up the Energy Division.
Sheet Metal Facility at Dorman Smith
Dorman Smith Y-Frame MCCBs
Modis 12 Sub Distribution Systems
Tyco Energy Division HQ,
Ottobrun, Germany
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Tyco Electronics UK, Dorman Smith SwitchgearBlackpool Road, Preston, PR2 2DQ, UKPhone: +44(0) 1772 325 400 Fax: +44(0) 1772 726 276
Energy Division – a pioneer in the development of economical solutions forthe electrical power industry. Our product range includes: Cable accessories, connectors & fittings, electrical equipment, instruments, lighting, insulators &insulation enhancement and surge arresters.
For more information and your country contact person, please visit us at: http://energy.tycoelectronics.com
All of the above information, including drawings, illustrations and graphic designs, reflects our present understanding and is to the best of our knowledge and belief correct and reliable.Users, however, should independently evaluate the suitability of each product for the desired application. Under no circumstances does this constitute an assurance of any particularquality or performance. Such an assurance is only provided in the context of our product specifications or explicit contractual arrangements. Our liability for these products is set forthin our standard terms and conditions of sale. ALR, AMP, AXICOM, B&H, BOWTHORPE EMP, CROMPTON INSTRUMENTS, DORMAN SMITH, DULMISON, GURO, HELLSTERN, LA PRAIRIE, MORLYNN, RAYCHEM, and SIMEL are trademarks.