1.3.2 Laying of optical fiber cables (part five)

EMC interference

Optical fibers are not susceptible to EMC interference (electrical pickup). For this reason, optical fiber cables can be routed together with any copper cables, even power cables.

Considerations after installation

If additional cables are routed, you should ensure that previously laid PROFIBUS cables or other system cables are not overstressed or damaged. This can occur, for example, if the PROFIBUS cables are routed together with other cables on a common cable tray (if the electrical safety permits it). Special care should be exercised when rerouting new cables (for repairs or expansion). Pulling several cables into an existing cable run can damage the previously run cables.
Pull in the PROFIBUS cable last if you are laying it in a cable tray together with other cables..