Siemens ST950 Handbook page 63

100mm (4") above the bottom of the stool. The concrete must be sloped to provide
a run up for the cables. Any cables already entering the pit must be held away from
the wet concrete. Where there is a risk of freezing, then a suitable antifreeze
additive shall be incorporated in the concrete mix to ensure proper curing.
Apply silicone sealant
between stool and case
996/4/22026/100
7.3.6 Cable Installation to Controller
Wiring runs should be made neatly and routed to allow enough spare cables for
possible changes/additions at a later date.
Spare cores are to be bundled and routed to a convenient position clear of the
mains. The ends are to be insulated to make the loom secured. Spare cores of ELV
cables are to be loomed separately to the cores of LV cables. Note: normally spare
cores are earthed at the controller end, as this makes Periodic Inspection Insulation
Resistance testing much easier.
If cable idents are required then these are fitted to cores before termination.
All cables into the controller should be fed into the outer case as close to their
termination positions as possible. This is to prevent unnecessary damage being
caused should any cables need to be moved once they are in place. Care must be
taken not to obstruct the Electricity Supply Company cut out with any cabling.
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Figure 22 - Stool Installation
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5
Neil Atkinson
ST950 ICM Handbook
Intelligent Traffic Systems
Sopers Lane, Poole, Dorset, BH17 7ER
Page 63 of 125
Status Issued
Date 18-Dec-2018
Document No. 667/HE/46950/000