Blue lights on overhead wires?

[enginedin]

View attachment 20240129_212451_1.mp4

Apologies for the poor quality video, but what do the blue flashing lights in the overhead wires denote? (despite how they appear in the video, they are actually blue!)

 

[alex17595]

They mark the limits of an isolation

 

[D7666]

I asked the same question on WNXX a while back.

RoLE lights - Reminder Of Live Exposed equipment.

Not sure I can link to it as it is archived now.

A couple of links from that thread :

Signs for Engineering Possessions

just mentions them in the rule book context, but

Reminder of Live Exposed (RoLE) equipment for overhead line working - Rail Engineer

Following a number of safety incidents and the ORR issuing Improvement Notice I/DTHM/20210729/01, Network Rail is introducing the use of ‘Reminder of Live Exposed (RoLE) equipment’ for when working on 25kV overhead line traction systems. RoLE equipment is simple and consists...

www.railengineer.co.uk

into details.

 

[swt_passenger]

A previous thread on this site includes a NR page about the available devices:

Blue Lights on Overheads

I was driving a passenger train last night when I passed an engineering possession between Harpenden and Leagrave. On the approach to Luton Airport Parkway there were blue flashing lights attached to the OLE. I have never seen these before. Does anyone know what they are? Also Blue flashing...

www.railforums.co.uk