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SILENT  FEATURE OF BREAKE POWER CERTIFICATE

(BPC)

 

 

 

 

 

BRAKE POWER CERTFICATE:-

  BPC is issued after intensive examination of train in empty   condition.

  • No sick wagon is allowed to run.
  • Prepare in triplicate.
  • Indicates brake power percentage of the train.
  • BPC will be invalid if,

(a)  The destination of the train is not mentioned on BPC.

(b)  The train composition of train is changed by 10 four wheeler unit or more.

(c)  The train is stable more than 24 hours at train examination points.

(d)  The integrity is changed of CC rake more than four, 8 wheeled wagon.

 

Type of Train

Color

Brake Power Percentage

Validity

 

 

Originating Station

Intermediate

Station

1.        Ordinary   Stock

(a)  Plain Bearing stock

 

(b)  Vacuum Brake Stock

UIC Stock/ CRC

 

 

 

 

(c)  Air Brake Stock

 

 

 

Pink

 

 

 

Pink

 

 

 

 

 

 

Green

 

 

85%

 

 

 

85%

 

 

 

 

 

 

 90%

 

 

 

75%

 

 

 

75%

 

 

 

 

 

 

75%

 

 

800 Kms.

 

 

 

End-To-End /Destination (Unloading) Station

(i)          4 Days in empty condition to reach loading station

 

End-To-End/ Destination (Unloading) station

2. Close Circuit (C.C.) Rakes

Blue

100%

75%

7500 kms / 35 days. In case the km. entries are incomplete

 

3.Premium rake

X

95%

75%

12 days in empty condition& 3 days grace period in loaded condition

4. Coaching Stock

    x

100%

90%

3500 Kms / 4 days Round pattern BPC

 

 

AIR PRESSURE CONTINUITY TEST:-

OBJECTIVE:-

 

      1-Continuity of brake pipe pressure from engine to brake van/ last vehicle.

2-On reduction of brake pipe pressure by driver, train brake must apply.

3-In emergency condition, if guard destroys BP pressure, then also train brake should be applied.

 

WHERE TO PERFORM:-

1-    When an engine is attached ahead or behind the train engine.

2-    When an engine is attached behind the last vehicle of the train.

3-    When traction or engine is changed.

4-    When shunting is performed in a train.

5-    Whenever air pressure leakage/brake power work is attended on a train.

6-    When a stable load has to be cleared from a road side station.

 

PROCEDURE:-

1. Charge the train with air pressure and ensure the requisite amount

                In Engine                         In Brake Van

          BP- 5.0                                   4.8 Kg/cm211- Maintenance is less.

          FP- 6.0                                    5.8 Kg/cm2

2. Guard will destroy the BP pressure by 1 Kg/cm2 with the help emergency handle of brake van or angle cock of last vehicle.

3. Driver will ensure that BP pressure drops in engine also. He will observe Air flow indicator, light and buzzer.

4. Guard will place the emergency handle in normal position and will allow   the BP pressure to charge again.

5. Driver and Guard will ensure that requisite amount of BP pressure            is charged again in engine as well as in brake van.

6. Driver will destroy the BP pressure to zero with the help of driver’s brake valve.

7. Guard will ensure the Bp pressure in brake van /last vehicle has also   dropped to zero.

8. To ensure brake application on train, Assistant Driver and Guard will check 3or4 wagons/ vehicles from their respective ends.

9. Driver will charge again Bp pressure by keeping the Driver’s brake valve in release position.

10. Driver and Guard will ensure that BP pressure both in engine and brake van / last vehicle is charged again to prescribed amount slowly and at Uniform rate.