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EMC Installation Guideline – Planning Guide (EMV) – 03.2004 Edition

Contents

1 Introduction ..................................................................................... 1-11

2 EMC Basic Rules............................................................................. 2-13

3 Interference Spreading................................................................... 3-15

3.1 Interference sources ..................................................................... 3-16

3.2 Interference sinks.......................................................................... 3-16

3.3 Coupling paths .............................................................................. 3-17

4 Equipotential Bonding.................................................................... 4-19

4.1 Equipotential bonding in built-in cabinets...................................... 4-20

4.2 Equipotential bonding of external components ............................. 4-22

4.3 Examples of equipotential bonding ............................................... 4-25

5 Control Cabinet Structure .............................................................. 5-29

5.1 Design and assembly of the cabinet ............................................. 5-29

5.1.1 Earthing of control cabinet components .................................... 5-29

5.1.2 Breakdowns in the control cabinet wall...................................... 5-29

5.2 Assembly of the components in the control cabinet...................... 5-31

5.3 Wiring, shielding and earthing....................................................... 5-33

6 Wiring and Shielding ...................................................................... 6-35

6.1 Cable running................................................................................ 6-35

6.2 Shielding ....................................................................................... 6-37

6.2.1 Introduction ................................................................................ 6-37

6.2.2 Basic rules for the shield connection of simple shielded lines... 6-38

6.2.3 Shielding measures with power lines......................................... 6-40

6.2.4 Further conduction of the line shield at the interruption point .... 6-41

6.2.5 Example of shield connections .................................................. 6-42

7 Filtration........................................................................................... 7-45

7.1 Interference suppression of inductors........................................... 7-45

7.2 Filter .............................................................................................. 7-46

8 Troubleshooting and Fault Elimination ........................................ 8-49

8.1 Troubleshooting ............................................................................ 8-49

8.2 Fault clearance.............................................................................. 8-49

Siemens SIROTEC Planning Guide

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