PTS DCCR FINAL EXAM TEST 2026\2027.
What must the conductor rail and its connections be treated as?
Live and dangerous at all times.
What voltage does the conductor rail provide to trains?
Up to 750 Volts DC.
How is the live rail mounted?
On insulators at the sleeper ends.
What precautions should be taken when near the conductor rail?
Do not make contact, stay at least 300mm away, use insulated tools and appropriate PPE.
What should be avoided when working with the conductor rail?
Standing water that may be in contact with the conductor rail.
What is the purpose of the fourth rail in the London Underground?
It is also a conductor rail and must be treated as live and dangerous.
What should be used when crossing DC electrified lines?
An authorized walking route or conductor rail gap.
How should one step over the conductor rail and adjacent running rail?
In one step, preferably where the ballast is level and there is guard boarding.
What is the risk level for a person making contact with the conductor rail?
Risk Level 1.
What is the risk control for Risk Level 1?
Isolation and the issue of a conductor rail permit.
What is the risk level for work within 300mm of the conductor rail?
Risk Level 2.
What should be done to prevent accidental contact with the live conductor rail at Risk
Level 2?
Fit conductor rail shields.
What is the risk level for work not as close as 300mm of the conductor rail?
Risk Level 3.
Are conductor rail shields required at Risk Level 3?
No, unless there is a risk of encroaching within 300mm of the conductor rail.
What must the conductor rail and its connections be treated as?
Live and dangerous at all times.
What voltage does the conductor rail provide to trains?
Up to 750 Volts DC.
How is the live rail mounted?
On insulators at the sleeper ends.
What precautions should be taken when near the conductor rail?
Do not make contact, stay at least 300mm away, use insulated tools and appropriate PPE.
What should be avoided when working with the conductor rail?
Standing water that may be in contact with the conductor rail.
What is the purpose of the fourth rail in the London Underground?
It is also a conductor rail and must be treated as live and dangerous.
What should be used when crossing DC electrified lines?
An authorized walking route or conductor rail gap.
How should one step over the conductor rail and adjacent running rail?
In one step, preferably where the ballast is level and there is guard boarding.
What is the risk level for a person making contact with the conductor rail?
Risk Level 1.
What is the risk control for Risk Level 1?
Isolation and the issue of a conductor rail permit.
What is the risk level for work within 300mm of the conductor rail?
Risk Level 2.
What should be done to prevent accidental contact with the live conductor rail at Risk
Level 2?
Fit conductor rail shields.
What is the risk level for work not as close as 300mm of the conductor rail?
Risk Level 3.
Are conductor rail shields required at Risk Level 3?
No, unless there is a risk of encroaching within 300mm of the conductor rail.
