DETONATING SIGNALS

It is an audible signal used to attract the attention of the Loco Pilot.

The detonator consists of a metal disc charged with explosive and capable of being fixed on the rail head by means of metal clasps.

For use, a detonator shall be placed on the center of the head of the rail with the label upwards and shall be securely fastened to the rail by bending the clasps.

When an engine or vehicle passes over it, it explodes with a loud sound so as to attract the attention of the Loco Pilot.

A case containing ten detonators shall be supplied to Loco Pilot, Guard, Gang mate, Gatemen, patrol men, Trolly/lorry, TT machine operator, Loco Pilot of Tower car. 20 detonators to fog signal men and 8 for key man.

The normal life of detonator manufactured in 2010 and thereafter is 5 years.

Life can be extended by one year each time after testing, to a maximum of 3 extensions.

Detonators shall be tested once in 12 months.

Detonator shall be tested under an empty wagon moving at 8 to 11 Kmph.

In thick and foggy weather, to indicate the Loco Pilot about the location of signals, two detonators shall be placed at a distance of 270 m from First Stop signal, 10 meters apart.

In case of obstruction, one detonator shall be placed at a distance of 600 m, and three detonators at 1200 m, 10 m apart from obstruction.

A safety radius of 45 meters should be maintained during explosion.

Detonators shall be carefully handled and they shall be stored in a dry place.

Such staff that is expected to use detonators should be tested once in three months.

A register is maintained in SM office (consists of four parts).

All particulars of usage of detonators etc. to be recorded by ―ON Duty‖ SM.

SM shall attempt to put it back ―ON‖ by operating a panel and immediately report to S&T staff.

If unable to do so, inform rear SM, SCOR.

Make an entry in S&T failure register.

Light of the signal shall be extinguished by pasting paper on the glass or putting across mark.

A competent railway servant shall be deputed to exhibit Stop hand signals at the foot of the stuck ―OFF‖ signal till it is brought back to ―ON‖.

SM shall try to receive the train on other line as far as possible.

In case it is not possible, then SM of advance station shall advise rear SM to intimate LP the fact through issuing caution order.

Train at advance station shall be admitted by indirect reception after conveying message to LP.