I imagine that as bulbs need replacing and/or lighting systems become life expired they will be replaced with LEDs. Several Scotrail stations have already had their systems upgraded, including little-used stations like Invergowrie.Will all platform lighting (and any other lighting infrastructure for that matter) be migrated by NR over to using LED bulbs?
I imagine that as bulbs need replacing and/or lighting systems become life expired they will be replaced with LEDs.
Many TOCs are also now switching off station lights about an hour after the last train has departed and if the line is closed for the night.
Yes except the group standard does not allow platform lighting to be dimmed only non platform areas
At my local station they have replaced the platform lamp posts (not just the light fittings the whole lot) for the third time in 20 years. The streets adjacent still have concrete street lampposts over 40 years old. IMHO Network Rail has a lot of budget for this sort of thing that could be better spent elsewhere.
Well someone best tell them about the above as Three Bridges Station is fitted with them and that was about 2+ years ago, the lights on the platform end lampost heads dim if no one is near them. You have enough light to see looking down the platforms to the ends but if you walk along the platform as you approach each lighting column the increase in brightness and then if no one is near them after a predetermined time revert back to there dimmed state again saving electric but still maintaining light.
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Thats often a problem since different departments don,t talk to each other as they are in the own little world and have there pots of money to spend. Also desk top exercises as against going to site and seeing whats there and in place.
Back in B.R. days there would be an on-site visit by departments affected by proposed works where by as in the case above if lighting columns was relatively new and was able to be utilised in the plans then instead of replacing the columns they might just have new heads fitted instead. Now its seems to be a case of lets see how much money we can spend and lets make the contractors profit on the job fatter for him as its Network Rail ( the travelling public / taxpayer ) who is footing the bill.
I am surprised how many of the new LED lights at the stations I drive through are out of order. Not normally enough to warrant a call to the signaller but the odd one or two along roughly 60% of the platforms. There are also quite a few with noticeable flickers which if causing a distraction by the monitors I have reported. Given that these LED heads are supposed to be much longer lasting is the issue with the rectifiers or supply rather than the LEDs themselves?
flicker is in the actual lighting head-rather like if you fit a non dimmable LED bulb at home on a light with a dimmer.Is the flicker noticeable in "real life", or only on-screen? If it's only on-screen, then it may be ripple from the rectifier that causes the light to flicker all the time in a way that's invisible to the naked eye but combines with the camera refresh rate to give a visible flicker on the screens.
Using cleverly-synchronised shutter speeds for the cameras can help, but not if the lights are going to be dimmed: As this article puts it "Serious trouble starts, when LED lights are dimmed. LEDs usually are dimmed by chopping the d.c. supply voltage and varying on and off time. This leads to a massive flicker, even when using quality mains adapters."