Siemens SIMATIC S7-400H System Manual page 347

Fault-tolerant systems
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Storage of the fiber-optic cables
if you do not install the fiber-optic cable immediately after you received the package, it is
advisable to store it in a dry location where it is protected from mechanical and thermal
influences. Observe the permitted storage temperatures specified in the data sheet of the
fiber-optic cable. You should not remove the fiber-optic cables from the original packaging
until you are going to install them.
Open installation, wall breakthroughs, cable ducts:
Note the points outlined below when you install fiber-optic cables:
● The fiber-optic cables may be installed in open locations, provided you can safely exclude
● Fiber-optic cables should be mounted on mounting rails (cable trays, wire mesh ducts)
● Always deburr or round the edges of the breakthrough before you install the fiber-optic
● The bending radii must not be smaller than the value specified in the manufacturer's data
● The branching radii of the cable ducts must correspond to the specified bending radius of
Cable pull-in
Note the points below when pulling-in fiber-optic cables:
● Always observe the information on pull forces in the data sheet of the corresponding
● Do not reel off any greater lengths when you pull in the cables.
● Install the fiber-optic cable directly from the cable drum wherever possible.
● Do not spool the fiber-optic cable sideways off the drum flange (risk of twisting).
● You should use a cable pulling sleeve to pull in the fiber-optic cable.
● Always observe the specified bending radii.
● Do not use any grease or oil-based lubricants.
S7-400H
System Manual, 03/2012, A5E00267695-11
any damage in those areas (vertical risers, connecting shafts, telecommunications
switchboard rooms, etc.).
using cable ties. Take care not to crush the cable when you fasten it (see Pressure).
cable, in order to prevent damage to the sheathing when you pull in and fasten the cable.
sheet.
the fiber-optic cable.
fiber-optic cable.
You may use the lubricants listed below to support the pulling-in of fiber-optic cables.
– Yellow compound (Wire-Pulling, lubricant from Klein Tools; 51000)
– Soft soap
– Dishwashing liquid
– Talcum powder
– Detergent
Synchronization modules
18.2 Installation of fiber-optic cables
347

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