A-14 – Siemens Automation System S7-400 User Manual
Page 182
Assembling and Installing Systems
A-14
Automation System S7-400 Hardware and Installation
A5E00850741-01
Handling the Shields
Observe the following points with regard to the shield:
• Only use cable clamps made of metal to secure braided shields. The clamps
must surround the shield over a large area and provide good contact.
• Connect the shield to a shield bus immediately after entry of the cable into the
cabinet. Route the shield to the module but do not connect it there again to the
chassis ground or the shield bus.
• For installation other than in cabinets (for example, wall mounting), you can
provide contact between the cable shields and the cable duct.
Shown in the figure A-4 are some methods of securing shielded cables with cable
clamps.
Figure A-4
Mounting Cable Shields
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