Total Interruption of Communication on Double
line {6.02(iii)}
When all the authorized means of
communication has failed and Line Clear could not be obtained through any one
of the following means of communications, Total Interruption of Communications
is said to prevail between the two block stations.
1.
Block
Instruments
2.
Telephone
attached to Block Instruments.
3.
Station
to station fixed telephones
4.
Rly
Auto phones and BSNL phones.
5.
Control
Telephone
6.
VHF
sets
All
trains shall be stopped and the SM shall advise GDR of the situation.
Form T/C 602 to be issued. It includes
1.
An
Authority to Proceed without Line Clear
2.
An
authority to pass dispatch signals at ‘ON’
3. A Caution order with speed restrictions
25/10kmph (Day/Night)
o
LP
to proceed at walking speed and frequently use engine whistle during thick or
foggy weather and a competent railway servant has to walk in advance of train,
carrying Hand danger signals and Detonators to ensure the view ahead is clear
and pilot the train.
Ø Before entering
tunnel, the head lights, side lights, tail lights should be lit, ensure the tunnel
is clear.
Ø On approaching the
station, LP has to stop at the foot of the FSS and give a long whistle; SM may
receive the train by taking off signals.
Ø If no response even
after 10 minutes from SM train to be protected in rear and SM shall be warned by
sending ALP to the station.
Ø LP to handover from
T/ C 602 to SM.
Ø
If
the train happens to stop due to any accident/failure/obstruction, Guard to
check up Tail board/Tail lamp.
Ø Place one detonator
at 250 mts on the way out and two detonators 10 mts apart at 500 mts from train
in rear.
Ø SM may start second
and subsequent trains with a clear interval of 30 minutes.
Ø When trains follow
one another, no train shall be backed.
Ø If unavoidable, it
can be backed, after protecting train as above from the point upto which the
trains to be backed.
Ø This system of
working to be continued until anyone of the means of communications is
restored.
Ø A record of all
trains passed under this system shall be maintained in the TSR at the stations.
Ø If any regular means
of communications restored by competent authority and after ascertaining that
the block section is clear, the restoration message should be duly exchanged in
form T/I 602 by both the Station Masters.
Ø Then trains can be
worked by regular system of working. TI shall scrutinize the records and submit
a report to DRM within 7 days of occurrence.
