【正文】 ... ..................................... 12 4 Ratings ....................................................................................................................... . 12 Rated voltages ............................................................ ........................................ 13 Rated insulation levels ......................................................................................... 13 Rated frequency and number of phases .................................................. ............. 13 Rated normal currents and temperature rise ........................................................ . 13 Rated shorttime withstand currents .................................................................... . 14 Rated peak withstand currents ............................................................................. 14 Rated duration of short circuit ............................................................................. . 14 Rated supply voltage of closing and opening devices and auxiliary and control circuits .................................................................................................... . 14 Rated supply frequency of closing and opening devices and auxiliary and control circuits .................................................................................................... . 14 Rated maximum power and class of enclosure ..................................................... 14 Rated maximum power of the prefabricated substation.............................. 14 Rated class of enclosure .......................................................................... 15 5 Design and construction ............................................................................................... 15 Earthing ............................................................................................................. . 15 Auxiliary equipment .................................................................................... ......... 16 Nameplate .......................................................................................................... . 16 Degree of protection and internal fault.................................................................. 16 Enclosure ........................................................................................................... . 18 Other provisions ................................................................................................. . 21 Sound emission .................................................................................................. . 21 Electromagic patibility (EMC) .................................................................... 21 6 Type tests ................................................................................................................... . 21 General .............................................................................................................. . 21 Dielectric tests.................................................................................................... . 22 Temperaturerise tests ......................................................................................... 25 Shorttime and peak withstand current tests on main and earthing circuits ............ 28 Functional tests .................................................................................................. . 28 Verification of the degree of protection ................................................................. 28 Calculations and mechanical tests ....................................................................... 28 Internal arcing test ............................................................................................... 29 Electromagic patibility test (EMC) ............................................................. 29 EN 62271202:2020 – 4 – 7 Routine tests ............................................................................................................... . 29 Dielectric test on the HV interconnection .............................................................. 30 Voltage withstand tests on auxiliary circuits .......................................................... 30 Functional tests .................................................................................................. . 30 Verification of correct wiring ................................................................................. 30 Tests after assembly on site ............................................................................... . 30 8 Guide to the selection of prefabricated substations for service ....................................... 30 Selection of rated values ..................................................................................... 30 Selection of class of enclosure ............................................................................. 31 Selection of internal arc classification .................................................................. 31 Information ......................................................................................................... . 34 9 Information to be given with enquiries, tenders and orders ............................................ 38 Information with enquiries and orders ................................................................... 38 10 Rules Information with tenders ...................................................................................... 39 for transport, installation, operation, maintenance and endofservice life ............ 40 Conditions during transport, storage and installation............................................. 40 Installation........................................................................................................... 40 Operation ......