Dimming in India
Effective management of streetlights in the late night hours can save India over Rs 10,000 crore, an amount that could go for the setting up of three power plants of 1000 mw each. Read more…
Effective management of streetlights in the late night hours can save India over Rs 10,000 crore, an amount that could go for the setting up of three power plants of 1000 mw each. Read more…
July 31st, 2007 at 10:15 am
In Denmark we have been dimming by turning every second or third phase for the past 35 years, but the experience is that this is not the best solution. This will not increase the lifetime of the lamps, because in DK it is not legal to dim in intersections and roundabouts, so usually one phase is dedicated for intersections and therefore this cannot be dimmed, so it will always be the second phase that will be dimmed. Since all bulbs are changed in batches it will be too expensive to change every second bulb.
Turning every second phase off will result in “zebra stripes” and this is quite dangerous, so the recommendation from the national road department is to use dimming all lamps (except the ones in intersections and roundabouts). This will not provide the same savings as turning off every second, but is probably as good as turning off every third lamp.
The recomendation is to dim the light