3.5 Working (Working by Bell or Telephone)

Question 1

When must you use 3.5 Working?

Answer 1

When:

Signalling equipment is being worked on or has failed.
SLW (Single Line Working) is in operation.
An Out-of-Gauge train is to travel between two signal boxes.

Question 2

When using the standard system of bells, if possible, what else must you use to communicate when using 3.5 Working?

Answer 2

Train Describer.

Question 3

Where must you record all times at which bell signals are sent/received?

Answer 3

In the TRB or Occurrence Book - this includes bell signals sent as messages via phone, even if you normally would not.