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165
RATO 6 / 05-2012
Any other cable except for the inward cable, in the lateral direction of the track, of the
signalling system connected with the track in question or the adjacent track, or the cable
positioned in the duct, must not be positioned in the track cross-section within an area
that is at the most 1.4m under the height line of the track and, at the most 2.7m distance
from the centre line of the track.
A cable, which is not positioned in the duct, must be at a distance of at least 3.0m from
the centre line of the track.
The top surface of a cable, which is not positioned in the duct, must be at least
–
1.4m deep from the height line of the track in the track undershoot,
–
0.8m deep in the road undershoot,
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0.4m deep when the cable is in a trench, loose dirt or bed of rock and
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0.3m deep when the cable is in a trench cut into rock.
In any other case than those mentioned above, the top surface of a cable, which is not
positioned in the duct, must be at least 0.6m deep.
A duct must be positioned elsewhere than on a bridge at a distance of at least 2.7m
from the centre line of the track adjacent to the duct. A duct must be positioned on a
bridge at a distance of at least 2.3m from the centre line of the track adjacent to the
duct. An effort should be made to position the duct on the bridge at a distance of at least
2.7m from the centre line of the track adjacent to the duct.
The upper surface of the duct lid must be
–
on the track layout of the railway operation location, on the same level with the
upper surface of the sleeper on the track adjacent to the duct, or lower,
–
outside the track layout of the railway operating location, elsewhere than in the
inner curve at least 300mm under the height line of the track adjacent to the duct
and
–
outside the track layout of the railway operating location, in the inner curve at
least 400mm under the height line of the track adjacent to the duct.
The duct must be at a distance of at least 30m from the track buffer, when the duct is
located in advance of the buffer.
The signalling systems cable distance to the conductor, which is parallel with the cable
and has the nominal voltage of at least 110kV, must be at least 20m. The signalling
systems cable distance to the conductor, which has the nominal voltage of at least
110kV and leads under the track vertically, must be at least 130cm.
The signalling apparatus and the signalling apparatus cable must be earthed. The
electrified railway’s return current flowing through the cable sheath must be prevented.
The signalling apparatus cable must be protected in such a way that there is no
interference voltage induced in the cable disturbing the signalling systems functions.
6.6.11 Building signalling systems
A new signal, which has not been taken into use, and a signal, which has permanently
been taken out of use, must be covered in such a way that the light units, the code and
the border of the back plate of the signal are not visible in front of the signal from the
direction of the track. The signal doesn’t have to be covered, if the signal is turned or
turned over in such a way that the light units and the code of the signal cannot be seen
when looking at the signal from the direction of the track. A signal on a signal bridge or
cantilever signal bridge, which is not in use, must be, in addition, lifted as far up as
possible.
The light units of a signal, which is temporarily not in use, must be covered and the
signal must be equipped with a ‘Not in use’ board or boards according to the