Interference Spreading
© Siemens AG, 2004. All rights reserved
3-18 EMC Installation Guideline – Planning Guide (EMV) – 03.2004 Edition
Table 3-4 Examples for coupling paths
Coupling path Cause
Lines
• Incorrect or inappropriate laying
• Missing or incorrectly connected shield
• Inappropriate spatial arrangement of the lines (incl. equipotential
bonding line)
• Unsuitable lines
Control cabinet or housing of the
controls
• Missing or incorrectly wired compensation line
• Missing or incorrect earthing
• Inappropriate spatial arrangement
• Components not mounted securely
• Unfavourable cabinet structure
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