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Prisma Plus the tested switchboard, complying with standard IEC 60 439-1

Contents. The functions of an electrical switchboard. The IEC 60439-1standard. Prisma Plus : a structured switchboard based on functional units. Forms: partitioningForms : separations within an assembly. The minimum requirements to guarantee the safety of a LV switchboard. The tests of standard IEC 60439-1.

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Prisma Plus the tested switchboard, complying with standard IEC 60 439-1

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    1. Prisma Plus the tested switchboard, complying with standard IEC 60 439-1

    2. Contents

    3. The low voltage switchboard A vital link for electrical distribution

    4. The low voltage electrical switchboard Definitions

    5. The functions of an electrical switchboard To group and protect against external influences the protection and control devices and all their electrical and mechanical connections.

    6. The functions of an electrical switchboard Definitions Some of the components or specificities of the switchboard realize and/or guarantee its finalities, in functional term :

    7. The IEC 60439-1 standard The IEC 60439-1 standard gives general rules for switchboards construction to meet with safety and availability needs required by the application guarantees the minimum level of safety of people and equipment concerns the low-voltage switchgear and controlgear assemblies for the power distribution and control. states : - the service conditions (temperature...) - the construction requirements (IP, IK, forms,...) - the tests requirements

    8. Prisma Plus : a structured switchboard based on functional units This modular design brings much clearness to the switchboard : incoming unit current distribution units feeder units distribution units connection units communication units

    9. IEC 60439-1 Standard and Prisma Plus : a structured switchboard based on functional units Incoming units : incoming circuit breaker (Masterpact, Compact NS, Interpact INS...).

    10. Forms: partitioning In most installations, Prisma Plus cubicles do not require partitioning, Schneider Electric offering options and features that go well beyond the recommendations of the standard : front plates requiring a tool to be removed doors providing access to live parts are keylocked systematic installation of terminal shields on Compact NS circuit breakers and Interpact INS and INV switch-disconnectors upstream and downstream terminals on the incoming device are covered The protection of people and equipment is ensured on origin However, Prisma Plus offers different levels of partitioning to create separations inside the cubicles and thus create Form 2,3 and 4, as defined by the standard.

    11. Forms : separations within an assembly

    12. Forms : separations within an assembly Form 1 : no separation within the enclosure.

    13. The minimum requirements to guarantee the reliability of a LV switchboard First of all, it must comply with standards :

    14. The tests of standard IEC 60439-1 7 type tests : n°1 - temperature rise limits n°2 - dielectric properties n°3 - short-circuit withstand n°4 - protective circuit effectiveness n°5 - clearances and creepage distances n°6 - mechanical operation n°7 - degree of protection

    15. 7 type tests performed by the manufacturer The aim of these tests is to confirm the switchboard characteristics.

    16. Test n°1 (8-2-1) :Temperature rise limits Guarantees the safety and reliability of the switchboard, by avoiding problems such as : connection damages reduction in insulation performances risk of burn for maintenance operators electronic components damages faulty operation of the devices : inopportune release

    17. Test n°1 (8-2-1) :Temperature rise limits Conditions

    18. Test n°1 (8-2-1) :Temperature rise limits Results

    19. Test n°2 (8-2-2) : dielectric properties Guarantees the switchboard safety and reliability , to avoid problems such as : electrical arc generation insulation performance decreasing connection damages

    20. Test n°2 (8-2-2) : dielectric properties

    21. Test n°2 (8-2-2) : dielectric properties Results

    22. Test n°3 (8-2-3) : short-circuit withstand This test simulates an incident which could occur on site

    23. Test n°3 (8-2-3) : short-circuit withstand

    24. Test n°3 (8-2-3) : short-circuit withstand Results

    25. Test n°4 (8-2-4) : effectiveness of the protective circuit The effectiveness of the protective circuit is verified by two tests : resistance measurement of the connection between the exposed conductive parts and the protective circuits short-circuit withstand performed between the protective conductor and the nearest phase conductor.

    26. Test n°4 (8-2-4) : effectiveness of the protective circuit

    27. Test n°4 (8-2-4) : effectiveness of the protective circuit Results

    28. Clearance control : shortest distance between two conductive parts. Creepage distance control : shortest distance along the surface of an insulating material between two conductive parts.

    29. Test n°5 (8-2-5) : clearance and creepage distances

    30. Test n°5 (8-2-5) : clearance and creepage distances Results

    31. Test n°6 (8-2-6) : mechanical operation Endurance of material, guaranteeing the longevity of the various mechanisms.

    32. Test n°6 (8-2-6) : mechanical operation

    33. Results Test n°6 (8-2-6) : mechanical operation

    34. Test n°7 (8-2-7) : degree of protection

    35. Test n°7 (8-2-7) : degree of protection

    36. Test n°7 (8-2-7) : degree of protection Results

    37. The IP degrees of protection : (IEC 60529/EN 60529) 1st digit: protection of persons protection against solids.

    38. Degree of protection The IEC 60529 standard (02/ 2001) gives , by the IP code, the different degrees of protection provided by an electrical enclosure.

    39. IK code : 2 digits giving the level of shock energy, in Joules : IK 01 : 0,14 IK 02 : 0,2 IK 03 : 0,35 IK 04 : 0,5 IK 05 : 0,7 IK 06 : 1 IK 07 : 2 IK 08 : 5 IK 09 : 10 IK 10 : 20. Degree of protection : IK (IEC 62262)

    40. 3 routine tests performed by the panelbuilder The 3 routine tests, easily and rapidly performed, must be carried out by the panelbuilder. : overall inspection according to the mounting instructions and technical documents (right device ratings, tightening torques) insulation checking by a dielectric test checking of protective measures and of the electrical continuity of the protective circuits.

    41. Test n°8 (8-3-1) : cabling, electrical operation

    42. Test n°8 (8-3-1) : cabling, electrical operation

    43. Test n°8 (8-3-1) : cabling, electrical operation Results

    44. Test n°9 (8-3-4) : insulation resistance / (8-3-2) : dielectric test

    45. Test n°9 (8-3-4) : insulation resistance / (8-3-2) : dielectric test

    46. Test n°9 (8-3-4) : insulation resistance / (8-3-2) : dielectric test Results

    47. Test n°10 (8-3-3) : protective measures

    48. Test n°10 (8-3-3) : protective measures

    49. Test n°10 (8-3-3) : protective measures Results

    50. Panelbuilder and manufacturer, together to offer maximum safety and realibility Manufacturer : products tested in real configurations detailed instructions for fautless construction.

    51. Panelbuilder and manufacturer, together to offer maximum safety and realibility Panelbuilders (and installators’ workshops) : they complete a work of quality, simply they minimize the risk related to their responsibility for realization of a switchboard of which they know and ensure the level of safety they carry out very simply the conformity to the standard, therefore CE marking they develop their professionalism by making known it they are different from the other panelbuilders they profit from the transfer of Schneider Electric ’s experiment and tools

    52. Prisma Plus and IEC 60439-1 standard : an international influence IEC 60439-1 : the same standard for all the professionals of switchboards

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