Siemens Depot

Question 1

What depot protection system is in place within the maintenance shed?

Answer 1

On each road (1 - 3):

• Derailers
• Position light signals
• Visual lights (Red, Green, Flashing white strobe)
• audible alarms

Entrance to shed:

• Position light signals
• Derailers
• drop down stop signs

Question 2

What do the indications (on the depot protection system) within the maintenance shed?
- what should you expect taking a train in/out of the shed?

Answer 2

• RED light: Unit is Protected (‘Not To Be Moved” board attached)
• GREEN light: OHLE is isolated
• WHITE flashing strobe lights: Train movement on that road (plus audible alarm)
• driver should expect indication to be blank

Question 3

What is peculiar about SN161?

Answer 3

SN161 is a ground mounted signal with the red aspect at the top, and route indicator at the rear of the signal

Question 4

What does the RED light (when illuminated) indicate on the entrance to the wash from the London End?

Answer 4

You can enter the wash- the red light only indicates that the wash is not working- this must be reported to Depot Control