ABB SF6 LTB 245E1 BLG 1002A Product Manual page 25

Assembly Instructions
1HSB435410-2 enrev1
LIST OF CONTENTS
1. General ................................................................................ 1
2. Safety................................................................................... 3
2.1 Warning text ................................................................................... 3
2.2 Safety, general ................................................................................ 4
3. Delivery ............................................................................... 5
3.1 Weights........................................................................................... 5
3.2 Unpacking ...................................................................................... 6
3.3 Storage before assembly ................................................................ 7
4. Assembly............................................................................. 9
4.1 Preparations.................................................................................... 9
4.2 Frame assembly............................................................................ 11
4.3 Assembling the frame on the foundation ..................................... 12
4.4 Assembling the circuit-breaker pole on the frame ....................... 13
4.5 Preparations for assembling the operating mechanism and
protective tube .............................................................................. 15
4.6 Assembling the operating mechanism ......................................... 16
4.7 Assembling the protective tubes between the poles..................... 17
4.8 Final assembly of the circuit-breaker pole ................................... 17
4.9 Assembling the pull-rods ............................................................. 18
4.10 Inspecting the bolted joints, etc.................................................... 23
5. Electrical connections ..................................................... 25
5.1 Connection of the operating mechanism...................................... 25
5.2 Assembly of busbars or overhead lines........................................ 25
5.3 Tensioning the closing springs ..................................................... 26
6. Pressurising the poles ..................................................... 27
6.1 Preparations.................................................................................. 27
6.2 Gas filling with SF6 gas ............................................................... 28
6.3 Gas monitoring system................................................................. 31
6.4 Leakage test.................................................................................. 32
6.5 Final inspection of the pull-rod system........................................ 32
6.6 Fitting the signs and covers.......................................................... 34
7. Commissioning................................................................. 35
8. Operating values .............................................................. 37
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