ALL INDIA LOCO RUNNING STAFF ASSOCIATION
What next?
Can
anybody guess the reason for 12677 Express accident on 13-2-2015?
·
Blame game has started and finally a cooked up
story is going to evolve.
·
Is Loco Pilot responsible for the above
accident? You can decide yourself.
·
Loco pilot was running at a speed of 63kmph,
where the permitted speed was 80kmph.
Was
it a result of emergency brake application?
The brake force during normal brake application and emergency
brake application remains the same. Only time for application of brakes is
reduced in emergency.
The following chart illustrates the brake
application in coaches at various position of the brake handle.
SL No.
|
Position of brake handle
|
BP Pressure in Gauge
|
BP Drop
|
Brake cylinder pressure in coaches
|
1
|
Release
|
5 kg/cm2
|
0
|
0
|
2
|
Minimum Reduction
|
4.7 – 4.5 kg/cm2
|
0.3 to 0.5 kg/cm2
|
0.75 to1.5 kg/cm2
|
3
|
Full Service
|
3.4 – 3.2 kg/cm2
|
1.6 to 1.8 kg/cm2
|
3.8 kg/cm2
|
4
|
Over Reduction
|
2.5 – 2 kg/cm2
|
2.5 to 3 kg/cm2
|
3.8 kg/cm2
|
5
|
Emergency
|
0
|
5 kg/cm2
|
3.8 kg/cm2
|
Note: Brake cylinder pressure depends
on drop of Brake pipe pressure with a multiplication factor of 2.5 and maximum
is 3.8 Kg/cm2
So from full service application to emergency application the
brake force remains the same irrespective of brake handle positions.
Hence the theory becomes unreliable and in such case every
trains running in Indian Railway has to derail as 3.8Kg/cm2 brake
cylinder pressure is used in all the trains during their journey.
More over safety features of the locomotive initiates brake application
of 3.8 Kg/cm2 automatically during the following circumstances.
Ø
Tripping of important circuit breakers.
Ø
Computerized brake system failure.
Ø
Chain pulling.
Ø
Failure/ action of vigilance control device.
Ø
Any leakage of air pressure in coaches.
So the question of excessive/ emergency application does not
arise and will not cause any derailment. More over emergency brake application
take place automatically, when pipes between coaches get disconnected.
Whether
the derailment has occurred because of boulders on Track?
If
boulders were there, it might have damaged the engine rail guards before
derailing the coaches.
No
such damages for the engine were visible after the accident. It was not a ghat
section.
Maintenance of track and coaches are
paramount to improve safety in train operation.
A day
before the incidence, Rail breakage was reported by loco pilot worked in the
same section (KM169/300-400) of the track where the fateful incidence took
place.
The
track after maintenance was given fit to run at permitted speed of 80 Kmph
Anti
Telescopic Steel bodied coaches might have reduced the impact in such
accidents. But the coaches were too old to withstand such an impact.
During
every accident a scapegoat will be there to conveniently hide the mistake of several
others.
To cover up system failure a Loco pilot was removed from
service in an incident involving an important express train in Bangalore
division.
Whether
safety improved? Is human life not valuable? Do we repeat our mistakes? No!
If we are not raising our voices together to find the real
cause of accident and take necessary safety measures, we can see more in near
future. Print and electronic media with social responsibility is having an
important role to play to raise this issue.
Safety First –Safety Always
C.Sunish
General Secretary
AILRSA/SWRly.
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