Normafluor DNF7
Contents
1. Bypasses in 2 Upper shell 4 A u a Insul nsulator support TH IL DEI T lt DD Lower shell C CHC M8x35 screw 12 lt 22 Schneider AMTNoT013 02 Electric Normafluor DNF7 DNF7S 6 Installation Connections contd 6 9 Preparation of the cable connection amp Schneider Electric can guarantee the contractual characteristics A within the limits defined below maximum cross section 630 mm with a maximum of 4 cables per phase maximum width of the connection lug 80 mm Q When installing the cables comply with the connection mounting direction of the lugs the fastening plates and screws Use the defined tightening torques see 4 10 The connecting connections must be drilled on the site depending on the lugs used The indications given below are valid to use the lugs in accordance with the current manufacturing standards Do not use 500 mm aluminium lugs 6 holes or more After having removed the back panel 1 Dismantle every cable tightening strap 13 mm spanner 2 Remove the rear crossbeam 4 screws washers bolts 13 mm spanner 3 Dismantle the fastening crossbeams 2 screws washers 13 mm spanner 4 Donot move the last crossbeam Examples of positioning 1x 13mm hole A x 10 5 mm holes Connection Type 1 Connection for m all types of lugs2. 12 2 Safety instructions Do not dismantle the mechanical control mechanism springs without the releasing device A Do not open the poles without first having recovered the SF6 gas using the appropriate tools N Do not dismantle the earthing switch s springs without the releasing device 12 3 Dismantling of the equipment Consult Schneider Electric for all types of decommissioning work Remove all electrical equipment coils motors etc On disassembly the materials must be sorted and sent on via the appropriate recycling channels AMTNoT013 02 Schneider 43 Electric Schneider Electric 35 rue Joseph Monier CS 30323 92506 Rueil Malmaison Cedex France RCS Nanterre 954 503 439 Capital social 896 313 776 www schneider electric com AMTNoT013 02 As standards specifications and designs change from time to time please ask for confirmation of the information given in this publication N This document has been printed LY on ecological paper Publishing Schneider Electric Design Schneider Electric Printing 03 2011 2011 Schneider Electric All rights reserved
3. 000 2200022s0 nennen 6 Tools and products not supplied required for the operations described in this NOtiCe ccccccccsseeceseeceeeeseueeceaseceeeseeeeseeesseeens 6 Particular instructions for operation and intervention with energized OUI MIC IN een ea T Symbols amp conventions u0202200sssnnennennenennnennnnnenennnennnnen ernennen 7 Tightening torque values for standard assemblies nut bolt T Presentati Ti nee RR 8 EY SC NO aeea ee else 8 Dimensions and weights of the functional units equipped with a circuit breaker with packaging us 4444044440 Rennen 8 Dimensions and weights of the functional units with no circuit breaker with PACKAGING ccccseccsssecesssececsseceneeeeseeeeesenseeseesessees 8 Dimensions and weights of the circuit breaker moving parts delivered separately with packaging cccccccsseeeseeeeseeeeseeeeeeeees 8 Presentation of the functional units 0s2220002220enenneenenneennnnn 9 Bus riser functional unit cece ceccccceeceeceeceesee cesses eeseeeesseeeeseees 10 Packaging Handling Storage ccccssssseeeeesseeeeeseeeeeeseneneees 11 PACKAG ING een een 11 Reception 222u2224002nnnonnnnonnnn nano nnnne nenne nenne nenn nnnnnnnnnnnnnnnnnnnennnnen nen 11 Handling of the functional unit 40ss0444sennnnnee nennen 11 Unpacking and handling of the high voltage movin
4. 10 8 Replacement of a voltage transformer fuse Circuit Earthing Intervention Duration Busbars Cables i breaker switch To have access to the fuses please refer to the instructions given in 8 5 8 Normale Possible Do not forget to remove the visual indicator covers from the new fuses 10 9 Replacement of an internal element insulator capacitive divider etc In the High Voltage cables compartment Circuit Earthing breaker switch open amp ae nee unplugged energised eran g we ees unplugged In the busbar compartment Intervention Duration Busbars Cables Normale Possible Circuit Earthing Intervention Duration Busbars Cables breaker switch Normale 2h en 0a opene closed energised energised unplugged The replacement of a part is generally due to an accidental deterioration If this is the case the intervention of an Schneider Electric technician is advisable in order to replace the part in accordance with the relevant procedure s Obtain the guarantee connected with the carrying out of the service determine the origin of the failure Schneider 41 Electric Normafluor DNF7 DNF7S 11 Spare parts 11 1 The spare part Describes a part that is designed to replace a corresponding one with a view to re establishing the original function Q The replacement of these parts can only be carried out by an approved person authorised and trained for this ope
5. DNF7 DNF7S 5 Unpacking and assembling the equipment conta 5 5 Installation on the floor The limits of the civil engineering layout depend on the type and quantity of the equipment to install Position the panels whilst respecting the minimum distances in the front at the back and on each side of the switchboard V T busbar housing Front facing lt Minimum rear passage O S ab O O G _ 1e D Oo ae Minimum front passage Pa r 2 V T cable housing Minimum height Minimum under ceiling with height under voltage ceiling mm transformer bars mm Minimum ae Minimum rear Functional front e passage with voltage unit passage mm transformer mm cables mm 18 Schneider AMTNoT013 02 Electric Normafluor e _ N ee 6 Installation Connections 6 1 Presentation of the functional units In the case of a switchboard with 1 to 8 units its is recommended that the installation of the equipment be begun on the opposite side of the premises access door For a switchboard containing more than 8 units it is recommended that the installation of the equipment be started in the middle of the switchboard Sequence the incoming feeder of the functional units in accordance with the single line wiring diagram 6 2 Installation of each functional unit Check that each functional unit is perpendicular to the floor use wedges if necessa
6. Visual inspections u Make sure there is no foreign matter inside the switchboard m Check the outside appearance no trace of shocks no scratches on the paint Carry out the necessary touch ups m Check that the equipment complies with the safety index leaktightness of the functional units different obstructions etc Mechanical inspections m Operation and interlock tests of the access doors and moving panels Tests carried out on the interlock system by means of locks Inspection of the mechanical tightening systems electrical jointings power and earthing circuits etc Operational manoeuvres of the moving parts Plugging in and unplugging operations LV plug connection Arming closing tripping Dielectric tests a Whilst taking all the necessary precautions carry out a dielectric test of the HV equipment and LV wiring Note These tests are to be carried out before the electrical tests Electrical tests a Verification of the earthing circuit continuity Checking the connections of the LV links Operational test of all of the LV equipment Recording of the relay parameter settings after having checked that the switchboard is operating correctly 26 Schneider AMTNoT013 02 Electric Normafluor DNF7 DNF7S AMTNoT013 02 7 Operation 7 1 Operating levers Earthing switch Circuit breaker moving part a Circuit breaker rearming lever 7 2 Opening operation of the earthing
7. be stored away from dust humidity or the sun In order to facilitate the search they must be marked by the Schneider Electric reference number Certain components are fragile they should preferably be stored in their original packaging 11 4 Maintenance Consumables Designates the products necessary for maintenance see 2 5 For all orders for spare parts it is necessary to enclose the material characteristics data sheet 1 Technical characteristics of the device identification plate type reference order number serial number year of construction etc 2 Switchboard nameplate These indications are indispensable in order to identify the parts in relation to a highly varied range of products 42 Schneider Electric AMTNoT013 02 Normafluor DNF7 DNF7S 12 End ofthe equipment service life 12 1 Valorization of the equipment Schneider Electric functional units are compo sed of recyclable elements Polyester copper Eee r j gt gt I ee gt gt gt f gt gt gt L Resin copper ij SF6 Resin copper Resin copper External connection not included in the quantitative breakdown
8. change the altitude or remove the fool proof device from the functional unit Never dismantle the fool proof bracket placed under the moving part Do not force the introduction of the moving part into the front female connector Check the matching of the moving part current with the type and I rating of the functional unit Ifnecessary you are allowed to insert a 1250 or 2000 A circuit I breaker moving part into a 630 A functional unit AMTNoT013 02 Normafluor DNE7 DNE7S 7 Operation conta 7 9 Operating manoeuvres for the voltage transformer compartment Lever up unplugged transformers iy oe D i Lever down plugged in transformers flo In order to access the fuses or the secondary circuit devices of the voltage of transformers Protection screen 1 Operate the control ramp from the bottom to the top which leads to BEN 3 Switching of all of the voltage transformers fuses Breaking of the MV current Disconnection of the low voltage circuit Note During the transformer opening or closing manoeuvres accompan the control ramp until the end of the operation 2 Open the doors giving access to the voltage transformers and fuses 3 Insert the protection screen red in its housing which ensures the physical separation from the energised parts 4 Then access the fuses AMTNoT013 02
9. environmental requirements 2 3 Reminder concerning normal service conditions in accordance with IEC 60694 Permissible ambient temperature The ambient air temperature should be comprised between 5 C and 40 C The mean measured value for a 24 hour period must not exceed 35 C Installation altitude HV equipment are defined in accordance with European Standards and can be used up to an altitude of 1 000 m Beyond this account must be taken ofthe decrease in dielectric withstand For these specific cases contact the Schneider Electric Sales Department Atmospheric pollution The ambient air must not contain any dust particles fumes or smoke corrosive or flammable gases vapours or salts Permissible atmospheric humidity level The average atmospheric relative humidity level measured over a 24 hour period must not exceed 95 The average water vapour pressure over a period of 24 hours must not exceed 22 mbar The average atmospheric relative humidity value measured over a period of one month must not exceed 90 Schneider gt Electric Normafluor DNF7 DNF7S 6 Schneider Electric 2 Withregards to this User Manual contd The average water vapour pressure over a period of one month must not exceed 18 mbar Condensation may appear in case of any sharp variation in tempera ture due to excessive ventilation a high atmospheric humidity level or the presence of hot air This condensation can be
10. for Electrical Applications and the particular regulations for the network concerned with regard to locking out procedures Record the serial numbers and identifying marks on equipment and switchgear while they are accessible Tests and inspections have already been carried out in the factory Refer to the drawings and diagrams supplied with the equipment They describe the functionalities employed to carry out the level of operation required 9 4 Final checks before commissioning Visual inspection Date Remarks Signature Ensure there are no foreign bodies inside the switchboard m Check the external appearance for absence of blows scratches on the paint carry out touch ups if necessary m Check the conformity with the Protection Index leaktightness of the Functional Units various blanking panels etc Mechanical checks Date Remarks Signature Operating and interlocking tests on the access doors and removable panels m Key locked system tests a Inspection of mechanical tightening torques electrical jointing power and earthing circuits etc Handling operations carried out on the switchgear Closing and opening the load break switches and earthing switches a Arming closing and tripping the circuit breakers AMTNoT013 02 Normafluor DNF7 DNF7S AMTNoT013 02 9 Commissioning contd Inspections and tests Dielectric tests at 80
11. lt 240 mm aluminium copper lugs 300 mm and 400 mm Type 2 Connection for caluminium copper lugs 500 mm and 630 mm m 300 mm and 400 mm aluminium lugs AMTNoT013 02 Schneider 23 Electric Normafluor 6 Installation Connections DNF7 DNF7S contd In order to obtain a proper drilling dismantle and tighten the connection in a vice making sure it is protected Drilling of a lug position and fix the lug onto the connection using rapid tightening connection pliers type 1 point and drill the holes using those of the lug for the centering 6 10 Connecting the cables m Cut the grommet according to the diameter of the cable Insert onto the cable Itis re assembled at the end of the cable installation of the lug in accordance with the instructions of the supplier regarding the cable ends Fix each cable onto the connection lug o For cables lt 400 mm 1 M10 screw 8 8 class tightening torque 3 2 daN m o For cables gt 400 mm 4 M8 screws 8 8 class tightening torque 1 6 daN m Tomount 2 cables per phase connect these 2 cables onto the first connection lug Make sure the cable goes through the cable trough in order to I reduce the constraints linked with ca ble fastening First connection lug 24 Schneider AMTNoT013 02 Electric Normafluor DNF7 DNF7S AMTNoT013 02 6 Installation Connections contd Carry out the fa
12. neene 38 Systematic maintenance us2222usssssnennnnennnnnennnnnnnnnnennnnnne nn 39 Lubrication points in the moving par compartmert 40 Lubrication points in the High voltage cable compartment 40 Corrective maintenance of the functional units 41 Replacement of a voltage transformer fUSEC ccccccccssccessseeeeesseeeeees 41 Replacement of an internal element insulator capacitive divider etc 41 In the High Voltage cables compartment 41 In the busbar compartment u024u002200 nenn nenn nennen 41 Spare DAICS cesincsannssscsesevsncacsentussduncustsceasweaagncensecesGetncctasesssdenasuecauses 42 The spare Palt cee cccecccceececeeeeseeeese cece eeseeeeseeeeseeeeseeesseeeseeeeaaees 42 Identification of the equipment see 5 4 2u0022240ne nennen 42 Storage conditions 22200002200002nnennnnnnnnnnne nassen nenne nennen 42 Maintenance Consumables 00022000022000nnnneennnnnennneeennnn 42 End of the equipment service life uuuu2000000 0000n0nn0nnann0nn 43 Valorization of the equipment 22u0022200snnnnennnnnenennnenennnenn 43 Safety instructions ccccssecccsceseececeseeecceseeeeceeuseeeesseseeesseseeeseas 43 Dismantling of the equipment 0022220ssnneenennnennnnnenennennenn 43 Schneider 3 Electric Normafl
13. of the high voltage connections may be required Every 3 operations all of the faste ners must be changed In some cases screws need lubrication please refer to the assembly plans Schneider 39 Electric Normafluor r NET FE 10 Maintenance cconta 10 5 Lubrication points in the moving par compartment Apply the General Safety Instruc tions booklet for Electrical Applications and the particular recommen dations for the network concerned for locking out operations Greases see 2 5 Duration 1 hour per functional unit m Lubrication of the guide sliding joints of the shutters joints of the tie rods and rollers Plugging in ramp Earthing shoe and plugging in block of the circuit breaker s earthing circuit 10 6 Lubrication points in the High voltage cable compartment Apply the General Safety Instruc tions booklet for Electrical Applications and the particular recommendations for the network concerned for locking out operations Greases see 2 5 Duration 1 hour per functional unit a Joints sliding joints and toothed pinions m Joints and sliding joints 40 Schneider AMTNoT013 02 Electric Normafluor DNF7 DNF7S AMTNoT013 02 10 Maintenance conta Knives of the earthing switch 10 7 Corrective maintenance of the functional units Corrective maintenance Replacement of an internal element insulator see 10 9 capacitive divider etc
14. of the test value a Whilst taking all necessary precautions carry out a dielectric test on the HV equipment and LV cabling NB These tests must be carried out prior to electrical testing Electrical tests m Check the continuity of the earthing circuit m Check the connections on the LV links Test the correct functioning of the LV switchgear m Record the relay parameters Date Remarks Signature State of the switchgear Date Remarks Signature Ensure that all the load break switches circuit breakers and earthing switches are open and the access panels to the cables and the busbars are in place In accordance with the fuse supplier instructions ensure that the striker covers on the voltage transformer fuses have been removed 9 5 Energising the incoming feeder functional unit Energise the cables Check that the neon lamps of the voltage presence box light up m Energise the busbar In order to do so plug in lock and close the circuit breaker see 7 5 Case of 2 incoming feeder functional units Energise the cables m Check that the neon lamps of the voltage presence box light up m Check the phase balance see 9 6 9 6 Checking the phase balance 1 Testing the phase comparator o Connect both plugs of the phase comparator optional to 2 phases of the same functional unit o The lamp should light up the comparator is in operation 2 Checking the phase balance o Phases
15. switch Never use the operating lever without having previously pushed in the unlocking lever Insert the lever in the vertical position handle in the high position m Unlocking lever placed on the left of the control mechanism box of the earthing switch Indications on the direction of the earthing switch operation Schneider 27 Electric Normafluor DNF7 DNF7S 28 Schneider Electric 7 Operation contd Using your left hand push the unlocking lever down Using your right hand hold the operating lever by the handle and swing it to the left m Unlocking lever placed on the left of the control mechanism box of the earthing switch Indications on the direction of the earthing switch operation At the end of the operation the unlocking lever returns to its original position m The earthing switch is open Check the physical position of the earthing switch using the 2 inspection windows of the rear panel m When there is no earthing switch the back panel has no inspection window AMTNoT013 02 Normafluor DNF7 DNF7S AMTNoT013 02 7 Operation conta 7 3 Closing operation of the earthing switch Insert the lever in the vertical position handleat the bottom m Using your left hand push the unlocking lever down m Using your right hand hold the lever by the handle and push it up to the left m Release the unlocking lever which remains in the same position Hol
16. using the enclosed list lfany anomalies are perceived please make the necessary reservations with the forwarder The functional unit must remain on its base and in its original packaging during the storage period and until it is installed 4 3 Handling of the functional unit m Packaging for road and rail transport using 2 slings of 1500 kg each and a lifting device Place a protection stringer between each sling on the roof of the functional unit Schneider 11 Electric Normafluor DNF7 DNF7S 12 Schneider Electric 4 Packaging Handling Storage ccontd Packaging for air and sea transport using 2 slings of 1500 kg each and a lifting device Note the minimum heights given on the diagrams above must be respected a Voltage transformer housings same type of handling as for the functional units 4 4 Unpacking and handling of the high voltage moving part delivered separately Every circuit breaker is hand led in the same way A circuit breaker should never be handled by its connectors or its control mechanism a l Stringer 6 Approximate position of the centre of gravity 4 Round shaft Lifting point t 2 m Detailed diagram of the attachment Remove
17. Medium Voltage Distribution Normafluor DNF7 DNF7S Installation Commissioning Operation Maintenance Instructions Schneider www schneider electric com ES E ec t r C Normafluor DNF7 DNF7S 2 Schneider Electric Contents 1 1 1 2 2 1 2 2 2 3 2 4 2 5 2 6 2 7 2 8 3 1 3 2 3 3 3 4 3 5 3 6 4 1 4 2 4 3 4 4 4 5 4 6 4 7 4 8 4 9 5 1 5 2 5 3 5 4 5 5 6 1 6 2 6 3 6 4 6 5 6 6 Schneider Electric at your service ssssssssssssnnnnnnnnnnnnnnnnnnnnnnnnnnn 4 Our Service Unit our specialists and suitably adapted services 4 Schneider Electric Training Centre your training partner 4 With regards to this User Manual ccccsscceeseeeeeeeeeeeseeeeeeeneees 5 Responsibilities u024000200002000000nonnnnonnnnnnnnnennnnennnn nenne nenne nennen 5 Eco design concept and revalorisation of the materials used 5 Reminder concerning normal service conditions in accordance with IEC 60694 nnneennnnennnnnennnnnennnnnenenenenenesennne 5 Permissible ambient temperature cccccccceseeeeeeeeeeeeeeees 5 Installation altitude 2u00222000222nennnnnennnnnnnnnnnn nennen 5 Atmospheric pollution cccccceeccceeeeceseeeeeeeeseeeeeseeseeeessneeeees 5 Permissible atmospheric humidity level un 5 Other technical notices to be consulted
18. Schneider 33 Electric Normafluor DNF7 DNF7S 34 Schneider Electric 8 Standard locking out and interlocking procedures 8 1 Functional mechanical interlocks DNF7 DNF7S Functional Units are equipped with mechanical interlocks called functional intended to avoid any kind of operating error 8 2 Immobilisation device of the earthing switch by means of locks Earthing switch open Earthing switch closed 8 3 Immobilisation device for the earthing switch by means of padlocks not supplied O The passage holes are fore seen for padlock shackles of 8 mm The fitting of several padlocks on a single point necessitates the use of an accessory that is not supplied Earthing switch open Earthing switch closed AMTNoT013 02 Normafluor DNF7 DNF7S AMTNoT013 02 8 Standard locking out and interlocking procedures conta 8 4 Immobilisation device for the plugging in operation of the moving part The immobilisation of the plugging in operation of the circuit breaker moving part can be carried out by means of padlocks or locks Before any plugging in operation of the circuit breaker make sure the earthing switch is open see 7 2 the moving part is in the test position see 7 5 or extracted from the compartment there is no voltage on the voltage presence boxes oO Before any operation ofthe earthing switch make sure that 8 5 Padlocking of the blanki
19. avoided by an appropriate lay out of the room or of the building suitably adapted ventilation air driers heating etc Whenever the humidity level is higher than 95 we recommend that you take appropriate corrective measures For any assistance or advice contact the Schneider Electric After Sales Department See 1 1 Whenever the humidity level is higher than 75 we recommend that you take appropriate corrective measures for which Schneider Electric can offer you the necessary assistance Please do not hesitate to contact us 2 4 Other technical notices to be consulted AMTNoT023 General lubrification instruction BLR M Control Mechanism AMTNoT017 Operation Maintenance Installation Commissioning AMTNoT055 QRTHOFLUOR FP Operation Maintenance Circuit Breaker 2 5 Tools and products not supplied required for the operations described in this notice m Cutter AEREE a Crow bar gt m Open ended spanners size 13 16 18 St m Socket wrenches size 8 13 16 17 18 a A F Allen key size 6 8 10 Torque wrench with sockets size 13 16 and hexagon socket screw size 6 8 10 Flat blade screwdriver Rapid tightening pliers m 4 slings 1000 kg capacity Product code Clean dry cloth Solvent dielectric withstand gt 30 kV excluding chlorinated solvents Mechanical grease Mobilplex 47 Mobilux EP3 by AJON Mobil or Stabilube T6 by Sophos Molykote PG 54
20. balanced lamp off o Phases unbalanced lamp on u Make sure the phases are balanced using the already checked removable device lf there are out of phase check the cable connections Schneider 37 Electric Normafluor DNF7 DNF7S 38 Schneider Electric 10 Maintenance 10 1 Levels of maintenance Description Levels Operations recommended in the instructions manual installation operation maintenance carried out by suitably qualified personnel having received training allowing them to intervene whilst respecting the safety rules Complex operations requiring specific expertise and the implementation of support equipment in accordance with Schneider Electric s procedures These are carried out by Schneider Electric or by a specialised technician trained by Schneider Electric see 1 2 in the mplementation of procedures and who is equipped with specific equipment All preventive and corrective maintenance all renovation and reconstruction work is carried out by Schneider Electric 10 2 Preventive maintenance for the circuit breaker moving part Please refer to the specific instruction manuals See 2 4 3 Frequency Preventive maintenance Levels years Recommended operations 3 Removal of dust from the insulating enclosure of the poles clean dry cloth Checking the state of the plugging in clips ow B E Checking the earthing device on the moving part clips and contact jaw
21. commended by Schneider Electric Make sure the contact surfa ces are clean No other preparation is necessary to connect the copper on copper tinned aluminium on tinned aluminium and tinned aluminium on copper connections m Whatever the current the bypasses are mounted in the factory the fasteners being in place Remove the rear panel 8 screws 13 mm spanner m Remove the part supporting the bypass connection which ensures the rigidity of the whole switchgear for transport 10 mm A F Allen key m Keep the CHC M12x50 screw which will be used to fix the bar m Assemble the bars in accordance with the diagrams and photos given below The parts A are mounted and the screws are in place see diagram opposite 1 Place the round busbars inside the bypass shells A 2 Fix the busbar onto the suppor ting insulator B using the CHC M12x50 E screw 10 mm A F Allen key 3 Tighten the 2 HM10x55 screws 3 busbars or HM10x45 2 busbars D 16 mm open ended spanner or socket wrench 4 Tighten the 8 CHC M8x35 screws C 6 mm A F Allen key Please refer to the diagram opposite Schneider 21 Electric Normafluor e E ONE 6 Installation Connections contd C CHC M8x35 screw 12 E CHC M12x50 screw
22. d the lever using both your hands in order to finish the closing operation of the earthing switch m At the end of the operation the unlocking lever returns its original position The earthing switch is closed Check its physical position through both inspection windows of the rear panel 7 4 Plugging in and unplugging operations of the circuit breaker Instruction plate at the front of the circuit breaker 7 5 Unplugging operation of the circuit breaker up to the test position Open the door of the circuit breaker compartment u Make sure the circuit breaker is released Insert the operating lever in the operation position on the right Schneider 29 Electric Normafluor DNF7 DNF7S 30 Schneider Electric 7 Operation conta m Swing the lever from the right to the left which unlocks the circuit breaker from its plugged in position Pull the circuit breaker until it reaches the test position using both side handles Lock the circuit breaker whilst swinging the lever to the right m The circuit breaker can then be tested at no load The unplugging operation automatically generates o the release of the circuit breaker in case this had been omitted o the obstruction of the plugging in plugs by means of metal shutters 7 6 Complete unplugging operation of the circuit breaker Make sure the re arming motor is not in an operating cycle Note The locking of the low voltage plu
23. g is optional Press the unlocking lever of the low voltage plug Maintain the lever Turn the knurled button Unplug the socket AMTNoT013 02 Normafluor DNF7 DNF7S AMTNoT013 02 7 Operation conta Clip the low voltage socket onto its support Swing the lever into the vertical position which unlocks the circuit breaker from its test position Extract the circuit breaker from its compartment by pulling it using both side handles 7 7 Plugging in operation of the circuit breaker m The circuit breaker must be in the open position Insert the operating lever into the vertical position Push the circuit breaker until it reaches the test position Swing the lever to the left Before plugging in and screwing in the low voltage plug o manually arm the mechanical control mechanism o cut the LV circuits Schneider 31 Electric Normafluor DNF7 DNF7S 32 Schneider Electric 7 Operation contd Push the circuit breaker lever always on the left until it reaches the end stop Circuit breaker at its end stop swing the lever to the right locking in the plugged in position m Remove the lever Close the door The circuit breaker is ready to be operated 7 8 Mechanical device preventing any plugging in operation Every functional unit is equipped with a mechanical fool proof system preventing the plugging in operation of an incompatible moving part m Never
24. g part delivered BC SILLY ann seen 12 Storage conditions 022200022200020000onnnnnnnnnnennnnnnnnnnnenennnenennnenn 13 Intervehli n levels aa ea 13 Specific recommendations for storage durations of less than BE IMONIS ee ee ee 13 Specific recommendations for storage durations of between 6 and 12 90 ee 13 Specific recommendations for storage durations of between 12 and 24 MONS ee ee ee 14 Unpacking and assembling the equipment csssseeeeeees 15 Civil engineering CharacteristiCs cccccccceeeceeeseeeeeeeeeeeeeeseeeeeeeaes 15 Unpacking of the functional units cc ceceeeeeeeeeeeeeeeaaeeeeeeeaeeeees 15 Handling of the functional unit without a circuit breaker 16 Identification of the functional units and circuit breakers 17 Installation on the flOOM c cece ececccseseeecseeeceeeeeceueeeseeeeseneeesaaees 18 Installation Connections uass 2a0000n000nannnnnnnnnnnnnnnnn nun 19 Presentation of the functional units 220022220snennenneeneenenn 19 Installation of each functional unit 022200022sneenennennneneenenn 19 Standard case of attachment to the floor 0000ssssnnn nn 19 Inter functional unit earthing circuit connection re 19 Earthing circuit connection at the far end of the switchboard 20 Installation of the voltage transformer hous
25. grease for electrical contacts by A Dow Corning VALAN AMTNoT013 02 Normafluor DNF7 DNF7S AMTNoT013 02 2 Withregards to this User Manual contd 2 6 Particular instructions for operation and intervention with energized equipment When commissioning and operating the equipment under normal conditions the General safety instructions for electrical applications must be respected protective gloves insulating stool etc as well as the operating instructions All manipulations must be completed once started The durations for carrying out the operations mentioned in the maintenance tables are given purely as an indication and depend on the conditions on site 2 7 Symbols amp conventions Code for a product recommended and marketed by Schneider 6 Electric Tightening torque value Example 1 6 daN m 6 Mark corresponding to a key CAUTION Remain vigilant Precautions to be taken in order to avoid any accident or injury FORBIDDEN Do not do it 1 Compliance with this indication is compulsory non compliance with this stipulation may damage the equipment O INFORMATION ADVICE I Your attention is drawn to a specific point or operation OG gt C 2 8 Tightening torque values for standard assemblies nut bolt Threaded fasteners without grease assembly with ungreased washers Threaded fasteners with grease mounted with the washer greased Use grease referenced AN Zinc plated steel Sta
26. he switchboard to the earthing bar of the premises 17 mm spanner EN Towards the premises earth a d bar Earthing circuit 32 H M10 nut i H M10x40 screw ES10 washer M10 washers 6 6 Installation of the voltage transformer housing busbars Ne ey 3 points at 3 points on the front each side Viewed from the front The voltage transformer housing busbars is placed on the roof of the functional unit It is fixed by captive nuts and 9 H M8 x 20 screws m 9 ES3 extra tightening washers u 9 M8 washers 13 mm spanner 6 7 Connecting the earthing circuit of the busbar voltage transformer housing 1 Upper earthing circuit 2 Connection fasteners 1 H M8x16 screw 2 M8 washers 1 extra tightening ES8 washer 1H M8 bolt 13 mm spanner 3 Lower earthing circuit 20 Schneider AMTNoT013 02 Electric Normafluor DNF7 DNF7S CHC M12x50 Busbar 7 i Busbar Mounting of one busbar at the end of the switchboard AMTNoT013 02 6 Installation Connections contd 6 8 Connecting the busbar When connecting the different elements of the busbar respect the mounting directions of all the parts m use the screws found in the accessories pack use the screw tightening torques re
27. ing busbars 20 AMTNoT013 02 Normafluor DNF7 DNF7S AMTNoT013 02 Contents contd 6 7 6 8 6 9 6 10 6 11 6 12 7 7 1 7 2 7 3 7 4 1 9 1 6 er 7 8 7 9 8 8 1 8 2 8 3 8 4 8 5 8 6 9 9 1 9 2 9 3 9 4 9 5 9 6 10 10 1 10 2 10 3 10 4 10 5 10 6 10 7 10 8 10 9 11 11 1 11 2 11 3 11 4 12 12 1 12 2 12 3 Connecting the earthing circuit of the busbar voltage transformer NOUS MG ee ee te ae 20 Connecting the busbar u 2444400Bnennn en nnennne nennen nennen nennen 21 Preparation of the cable connection 22220222200220 nennen 23 Connecting the cables 220022220022sunennnneennnnennnnnnennnneennnnn 24 Inspections prior tO COMMISSIONING uu 2us224002enn nenne nenn nennen 25 Summary of the main list of checks prior to commissioning 25 Operaa nenn nes ae eee 27 Operating levers uusssnsesnssnennnnnennnnnnnnnnnnnnnnnnnnnnnn nenne nnnnnnnnnnnn 27 Opening operation of the earthing switch ccccecceeeeeeeeeeeeeees 27 Closing operation of the earthing SWItCN cc ceccccesseeeeeeeeeeeees 29 Plugging in and unplugging operations of the circuit breaker 29 Unplugging operation of the circuit breaker up to the test position 29 Complete unplugging operation of the circuit breaker 30 Plugging in operation of the circuit breaker enne
28. inless steel fasteners without fasteners with Dimensions grease daN m grease daN m A2 70 0 7 Schneider 7 Electric Normafluor anaes 3 Presentation 3 1 Description The DNF7 and DNF7S cabinets are made of a the front female connector which includes the switchgear compartment with the withdrawable circuit breaker running up the low pressure box m the rear female connector including at the top the busbar compartment and at the bottom the cable compartment 3 2 Dimensions and weights of the functional units equipped with a circuit breaker with packaging Option Approximate weight Width Height Depth Depth gas Functional unit with mm mm mm exhaust duct mm DNF 7S Incoming or Outgoing 1550 2500 feeder DNF TS Coupling 1350 2300 none 2250 2770 with VT DNF 7 cables Incoming or Outgoing 1650 2500 feeder 1300 DNF 7 Coupling 1450 none 3 3 Dimensions and weights of the functional units with no circuit breaker with packaging Approximate weight Width Height Depth Depth gas Functional unit with ssi a mm mm mm exhaust duct mm Bus riser BNE 2250 2300 Bus riser 3 4 Dimensions and weights of the circuit breaker moving parts delivered separately with packaging Circuit breaker Approximate weight Width Height Depth moving part kg mm mm mm 8 Schneider AMTNoT013 02 Electric Normafluor DNE7 DNE7S 3 Presentatio
29. ir AMTNoT013 02 Normafluor DNF7 DNF7S AMTNoT013 02 5 Unpacking and assembling the equipment 5 1 Civil engineering characteristics The installation of a switchboard requires a sufficiently flat and even concrete structure The dressing of a top coat of cement using a rule should eliminate any surface irregularities greater than 2 mm per metre A layout on iron supports for levelling off is ideal as they will also serve as a guide for the adjustment of the cement top coat The overall flatness of the support surface should not show up any deflection greater than 6 mm throughout the length of the switchboard 5 2 Unpacking of the functional units The functional units should only be unpacked on the installation site Remove the plastic film or dismantle the front panel and the roof of the crate Keep the roof and use it as a ramp when extracting the circuit breaker Open the door of the functional unit m Two red bars fasten the circuit breaker m Remove these two red supporting bars lower and upper bars 8 HM8x30 screws 13 mm spanner m Recuperate and place the roof of the crate as a ramp when extracting the circuit breaker Extract the circuit breaker see 5 7 and 5 9 m Remove the 2 upper squares of the panel of the moving part m 2 red skids are fixed 1 on the bottom plate of the front female connector They are only used to support the moving part during transport Schneider 15 Electric N
30. n 31 Mechanical device preventing any plugging in operation 32 Operating manoeuvres for the voltage transformer compartment 33 Standard locking out and interlocking procedures 34 Functional mechanical interlocks cccccceeecceeeeceeeeaeeeeaeeeeaeees 34 Immobilisation device of the earthing switch by means of locks 34 Immobilisation device for the earthing switch by means of padlocks not SUPPIIE ccccceccccseeeeceeeeeceeeceseeeeeseeeeeseeeeeees 34 Immobilisation device for the plugging in operation of the moving EE E EE eee see ee ee eee eee ere 35 Padlocking of the blanking shutters by padlock not supplied 35 Additional locking out and interlocking procedures 35 COMMISSIONINg anne 36 RENT ee een 36 Inventory of tools and accessories on completion of work 36 Pre commissioning information u2244400B4eenne nennen nennen 36 Final checks before COMMISSIONING ccccceeeeeeeeeeeeeeeaeeeeeeseaneees 36 Energising the incoming feeder functional unit 37 Checking the phase Dalance cccccccceeccececeeeeeeesaeeeessaeeeseneeeees 37 MALEN ANG Se eeann ae TREE TEE 38 Levels of maintenance 222022200snsnennnnennnnennnennnnnnnne nenne nennen 38 Preventive maintenance for the circuit breaker moving part 38 Preventive maintenance of the functional units
31. n conta 3 5 Presentation of the functional units Incoming Outgoing feeder with voltage transformer cables Legend 1 Gas exhaust valves 2 Busbars 3 Gas exhaust duct internal arc OON OO FA O 13 14 15 OOS Mj W N NL N OG OOG optional feature Busbar bypasses Earthing switch Voltage transformer compartment Medium voltage cables Cable fastening bottom plates Current transformers FP Orthofluor circuit breaker Access door to circuit breaker compartment Low voltage box Low voltage wiring sheath Handle internal arc only optional feature Mounting of the lock cup optional feature cable fastening bottom plates AMTNoT013 02 Ln Va If Zn K iy A W Uh Wey an N JJ N j A Hm Tb Nyy N N Ly shy DO Schneider Electric Normafluo
32. n ofthe mechanical parts see 10 5 amp 10 6 s Examining the high power electrical contacts Checking for the absence of overheating or discharges in the plugging in electrodes Checking of the tightening torque on the busbars u fe m Cleaning of the internal elements insulators connections base supports etc z Checking of the leaktightness of the compartment 1 Pr Visual inspection of the appearance of the internal components ll Ei Cleaning of the internal elements insulators connections supports etc Checking of the state of the earthing switch contacts lan W m Checking of the leaktightness of the compartment u D E Examination of the state of the cable re assemblies Ws Cleaning and lubrication ofthe mechanical parts see 10 5 amp 10 6 Visual inspection ofthe appearance of the internal components Y Verification of the state of the internal components o to E m Verification of the tightening torque of the screws and presence of stop elements 5 Visual inspection of the contact surfaces u Inspection and cleaning of the contact surfaces on the HV fuses Checking of the state of the internal components a W Checking the tightening of the terminals and the electrical connections in general F Examination of the general state of the wiring and the relays a m 10 4 Systematic maintenance A systematic check of every point of tightening
33. ng shutters by padlock not supplied The circuit breaker must be with drawn and extract from its compart ment see 7 6 Circuit breaker withdrawn location intended for fitting the padlocks Locking out by padlock not supplied Locking out by padlock not supplied NEVERATTEMPT TOLIFT UP OR DISMANTLE THE BLANKING O SHUTTERS 8 6 Additional locking out and interlocking procedures Other locking out and additional locking devices can be supplied depending on the particular specifications of the contract 35 Schneider Electric Normafluor DNF7 DNF7S 36 Schneider Electric 9 Commissioning 9 1 Reminder Prior to shipping DNF7 DNF7S Functional Units are mechanically and electrically tested If the equipment has been stored in a damp location it is recommended that the room be heated and the heating elements be energised for a period of 24 hours prior to installation of the switchboard Also check the leaktight sealing in the room and the cable troughs 9 2 Inventory of tools and accessories on completion of work Recover verify and tidy away all assembly tools and objects not required in the switchboard Return the Functional Unit s and Circuit Breakers operating accessories to their respective storage positions Attach the DNF7 DNF7S technical instruction manual in a visible location within the room 9 3 Pre commissioning information Respect the General Safety Instructions booklet
34. ontrolled and tested at the factory in accordance with the standards and the regulations currently in force Apparatus efficiency and apparatus life depend on the compliance with the installation commissioning and operation instructions described in this user manual Non respect of these instructions is likely to invalidate any guarantee Local requirements especially about safety and which are in accordance with the indications given in this document must be observed Schneider Electric declines any responsibility for the consequences due to the non respect of the recommendations in this manual which make reference to the international regulations in force due to the non respect of the instructions by the suppliers of cables and connection accessories during installation and fitting operations any possible aggressive climatic conditions humidity pollution etc acting in the immediate environment of the materials that are neither suitably adapted nor protected for these effects This user manual does not list the locking out procedures that must be applied The interventions described are carried out on de energised equipment in the course of being installed or locked out non operational 2 2 Eco design concept and revalorisation of the materials used The design and manufacture of our packaging are both in conformity with the French government decree N 98 638 of 20 July 1998 concerning the account that is taken of
35. ormafluor e DNF7 DNF7S 5 Unpacking and assembling the equipment ccontd m Remove the 4 lifting squares from one of the skids 2 and mount them on the functional unit m Remove these two red skids 4 M8 x 60 fixing bolts 3 u Dismantle the wooden base attachment by the inside using 4 M10 x 60 fixing bolts 4 2 in the front female connector and 2 in the rear lower compartment 5 3 Handling of the functional unit without a circuit breaker Mount 2 squares in the front upper corners Mount the other 2 squares in the rear upper corners Lift the functional unit using 4 slings supporting 1000 kg each 16 Schneider AMTNoT013 02 Electric Normafluor e DNF7 DNF7S 5 Unpacking andassembling the equipment ccontd 5 4 Identification of the functional units and circuit breakers Check the characteristics given on the Identification and ratings plate in relation to the initial order Function and technical data plate inside on the left end shield behind the low voltage plug m Plate inside the front female connector in the top right corner indicating the Schneider Electric reference number the type and identification of the equipment Arr amp AE 540 3004 ri IL UMNGIIS gt PORTUGAL Each circuit breaker is identified by an instruction plate placed at the rear on its frame AMTNoT013 02 Schneider 17 Electric Normafluor e
36. out an inspection ofthe packaging When unpacking check the operation of the switchgear by carrying out several operations 4 8 Specific recommendations for storage durations of between 6 and 12 months Protected by a heat welded sheet with bags of desiccant Periodically carry out an inspection of the packaging check that among other things there are no holes When unpacking When unpacking m Check the operation of the switchgear by carrying out several operations Test the min threshold level AC 85 rated Un DC 70 of Un for the electrical operation of the coils Schneider 13 Electric Normafluor DNF7 DNF7S 14 Schneider Electric 4 Packaging Handling Storage ccontd 4 9 Specific recommendations for storage durations of between 12 and 24 months Protected by a heat welded sheet with a method of replacing the bags of desiccant Periodically carry out an inspection of the packaging check that among other things there are no holes z Periodically replace the bags of desiccant ln m When unpacking i E carry out light maintenance work m Check the mechanical operation of the switchgear by carrying out several operations m Test the min threshold level AC 85 rated Un DC 2 70 of Un for the electrical operation of the coils must be restored to its rated value before any mechanical operation test A The pressure of any SF6 circuit breaker having travelled by a
37. r 3 Presentation conta DNF7 DNF7S 3 6 Bus riser functional unit LI atti I MY OR On A ANS Legend Gas exhaust duct Upper busbar Busbar bypasses Lower busbar Current transformer Low voltage box Low voltage wiring sheath NOOR WD gt 10 Schneider AMTNoT013 02 Electric Normafluor DNF7 DNF7S Stringer AMTNoT013 02 4 Packaging Handling Storage 4 1 Packaging m Packaging for road and rail transport functional unit on wooden pallets and wrapped under plastic film The accessory packs contain all of the parts necessary for the installation and operation of the switchboard m Packaging for air and sea transport functional unit wrapped under heat sealing film with desiccant bags and placed in wooden crates m The moving parts except the FP741 high voltage parts are delivered strapped in each functional unit m The FP741 high voltage circuit breakers and the voltage transformer housings are delivered separately on pallets They are wrapped under plastic film to be sent to a French destination and putin crates to be sent abroad 4 2 Reception On reception ensure that the switchgear is complete Carry out a visual examination of the functional units and moving parts Check the contents of the accesso ries pack
38. r Training Centre your training partner m A wide field of expertise o study and design of networks and installations o operation and maintenance of LV HVA and HVB equipment 4 application themes electrical generating sets diesel motors etc o electrical safety enabling the employer to give suitable authorisation to the people in charge of the operations and interventions on electrical equipment training sessions in our centres or on site defined according to your objectives and constraints qualified trainers and experts in their field practical work on real machines which represent more than 50 of the training period m an FIEEC Quality Training Charter member organisation and certified ISO 9001 version 2000 Faced with the direct and indirect training costs of the operational stoppages and shutdown training is a real investment Schneider Electric 35 rue Joseph Monier CS 30323 92506 Rueil Malmaison Cedex France RCS Nanterre 954 503 439 Capital social 896 313 776 www schneider electric com AMTNoT013 02 Normafluor DNF7 DNF7S AMTNoT013 02 2 Withregards to this User Manual Schneider Electric 2011 Schneider Electric the Schneider Electric logo and their figurative forms are Schneider Electric registered trademarks The other brand names mentioned within this document whether they be copyright or not belong to their respective holders 2 1 Responsibilities Our devices are quality c
39. ration Remplacement Levels every KALAC Fans by 3 30 000 h energized Undervoltage coil 40 000 h energized HV fuses by Programmed replacement Denomination This concerns wearing parts designed to be replaced after a predetermined number of uses Use Maintenance stock necessary for optimum maintenance procedures every 6 years Heating element Non Programmed replacement Denomination Designates spare parts the replacement of which intervenes following particular conditions in use Tertiary resistor Use Parts that are changed during a corrective maintenance operation o outside the scope of normal preventive Luminous indicator m maintenance actions Levelsx Exceptional replacement Denomination Moving part micro switch position Withdrawing crankhande u Operating lever forthe earthing switch Operating lever or circuit breaker Moving part dreutbreaken Currenttranstomes Je Voltage ransomes TiohtningSuwrae arrester je 11 2 Identification of the equipment see 5 4 Describes the spare parts or assemblies whose foreseeable service life is at least equal to that ofthe equipment Use Spare parts or sub assemblies conserved in a safety stock O For all orders for spare parts it is necessary to enclose the equipment characteristics form 11 3 Storage conditions The components should
40. ry Remove the lifting squares 1 Square in every top corner 13 mm spanner Check that the circuit breaker can be plugged in Continue to lay out the functional units whilst carrying out the same verifications Seven coupling points m H M10 x 20 screws m 7 H M10 nuts T T R m 14 C10 washers 16 mm spanner the front Viewed from the side Carry out the coupling of the functional units together 4 points at the front 3 at the back A Do not forget to block up the holes of the lifting squares of the end functional units using the plugs delivered with the accessories This operation is necessary to preserve the equipment protection index 6 3 Standard case of attachment to the floor 6 points of attachment to the floor 12 mm bolts excluded Viewed from the front j 6 4 Inter functional unit earthing circuit 1200 2 connection Connect both earthing circuits at the bottom of the front female connector on the left and right hand side 17 mm spanner Left hand functional unit Right functional unit Earthing circuits H M10x30 screw o ES10 washer M10 washers AMTNoT013 02 Schneider 19 Electric Normafluor e _ O E 6 Installation Connections contd 6 5 Earthing circuit connection at the far end of the switchboard Connect the earthing circuit of t
41. s 5 10 3 Preventive maintenance of the functional units Preventive maintenance Frequency Levels Operations recommended at the 3 Functional Unit level Years Verification of the presence and condition of accessories levers etc Visual inspection of the exterior cleanliness absence of oxidation etc Cleaning of external elements with a clean dry cloth Checking the tightness to torque covers wiring ducts connections etc Checking the mechanical controls by carrying out a few operations Checking the positioning of the status indicators armed open and closed Control of the status and functioning of locking by key locks Dusting and cleaning the internal mechanical elements without solvent Inspection of the tightening of the threaded fasteners and presence of internal stop elements Dusting and cleaning the internal mechanical elements with solvent Lubrication and greasing of mechanical elements with recommended products Monitoring the general appearance of the mechanical components and connections Testing the function mechanical interlocks amp Years AMTNoT013 02 Normafluor DNF7 DNF7S AMTNoT013 02 10 Maintenance conta Frequency years Levels Preventive maintenance ensure that the Sets To rer plugging in unplugging Checking the state of the plugging in electrodes 5 Cleaning the insulating components with a clean dry cloth Cleaning and lubricatio
42. stening of each cable onto the cable itself The cable earthing braids must go above the bottom plates Do not stick the phase marks coloured adhesive tape on the re assemblies Tightening strap Grommet Cable Earthing braid Connect the 3 earthing braids to the earthing circuit H M8x25 screw 13 mm spanner m Re assemble the rear crossbeam 6 11 Inspections prior to commissioning Please refer to the drawings and diagrams provided with the equipment and which describe the func tionalities performed to carry out every step of the necessary operations Record the numbers and identifica tion marks of the equipment and sub assemblies Rigorously observe the locking out operations and tests under the operating conditions on site Respect the general instructions and the site instructions in force Check that the premises the cable duct the ventilation devices etc are water tight If the equipment has been kept in a humid area we recommend that the premises be heated or the heating resistor be supplied power for 24 hours prior to commissioning 6 12 Summary of the main list of checks prior to commissioning Q Inspections and tests have been carried out at the factory Schneider 25 Electric Normafluor o _ e OE 6 Installation Connections contd Details of the checks Notes Signature
43. the roof and sides of the crate crowbar Unscrew the 2 HM12 screws 18 mm spanner Remove the 2 axles of the housing Insert a round steel shaft with a diameter of at least 30 mm throughout the width of the circuit breaker Pass the slings over each end Insert a wooden stringer Raise it using a lifting device ROND N OA AMTNoT013 02 Normafluor DNF7 DNF7S AMTNoT013 02 4 Packaging Handling Storage ccontd 4 5 Storage conditions The storage area must shelter the equipment from agents likely to cause deterioration such as u Water m Water vapour Salt laden air Pollution of any type Microorganisms Please consult Schneider Electric in case of non compliance with these criteria Make sure the equipment was conditioned in accordance with the requirements of the scheduled storage period Avoid storing the equipment in areas submitted to abrupt and drastic changes of temperature Make sure no aggressive vapours such as sulphur dioxide SO2 for example are given off 4 6 Intervention levels Description Levels Operations carried out by the Customer 1 Operations requiring specific training carried out by an 2 approved third party Work to be carried out exclusively by Schneider Electric 3 4 7 Specific recommendations for storage durations of less than 6 months Packaged under a plastic covering Periodically carry
44. uor DNF7 DNF7S 4 Schneider Electric F v 1 1 ii a m f no ae eee eS 1 Schneider Electric at your service Operation and maintenance may only be carried out by personnel who have received suitable authorisation for the operations and manoeuvres they are responsible for performing If this is not the case please refer to our Service Unit or to our Training Centre All locking out operations must be performed according to the General Safety Instructions booklet for Electrical Applications UTE C 18 510 or its equivalent outside FRANCE 1 1 Our Service Unit our specialists and suitably adapted services Guarantee extension contracts in relation to the selling of new equipment Supervision of HVA switchgear installations Technical advice diagnoses of the facilities expertise Maintenance contracts adapted to the operational constraints Systematic or conditional preventive maintenance Corrective maintenance in case of partial or complete failure Supply of spare parts Overhauling of equipment and requalification of installations in order to benefit from new technologies and extend the life of your switchgear by limited investments Contact the Schneider Electric Service Unit for diagnoses and advice Working hours Phone No 33 0 385293500 7 days per week 24 hours per day Fax 33 0 3 85 29 36 30 or 33 0 3 85 29 3643 Free phone No 0 800 40 27 62 1 2 Schneide
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