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                                  10 functions to define the IEC 61439-1&2 standard

                                   
                                   

                                  All the verifications proposed by standard IEC 61439 contribute to the achievement of 3 basic goals and 10 functions:
                                  > The 5 Safety functions
                                  > The 2 Continuity of Service functions
                                  > The 3 Compliance with End-User Requirements functions

                                  10 functions to define the new IEC standard 61439-1&2 : the 3 compliance with end-user equipments functions 3 Compliance with End-User Requirements functions

                                  Capability to operate the electrical installation
                                   Needs & design requirements Design verification Routine verification
                                       
                                  Properly fonction, according to:
                                  • The electrical diagram and the specifications (voltages, co-ordination, etc.) by selecting, installing and wiring the appropriate switching devices.
                                  • The specified operating facilities (Access to Man-Machine Interfaces, etc.) through accessibility and identification.
                                  • By inspection
                                  • Impulse withstand voltage test of isolating distance for optional withdrawable units
                                  • Visual inspection
                                  • Effectiveness of mechanical actuating elements and function test (where relevant)
                                       
                                  Capatibility to be installed on site
                                  Needs & design requirements Design verification Routine verification
                                       

                                  Withstand handling, transport, storage and installation stresses, and be capable of being erected and connected through selection or design of the enclosure and the external terminals, and by means of provisions and documentation.

                                  • By inspection
                                  • Lifting test, taken from IEC 62208
                                  • Number, type and identification of terminals for external conductors
                                       
                                  Protection of the Assembly against environmental conditions
                                  Needs & design requirements Design verification Routine verification
                                       
                                  Protect the Assembly against mechanical and atmospheric conditions through selection of materials and various design provisions.
                                  • IP test
                                  • IK test
                                  • Corrosion test
                                  • UV test (outdoor only)
                                  None

                                    
                                   
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