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Why do some street lights stay on in the day?

1Devilsadvocate
Posts: 1,518
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10/11/2013 3:49:22 PM
Posted: 3 years ago
At 10/10/2013 7:13:19 AM, Adam2 wrote:
I think we have simpletons running our lights lol

Probably because they're broken.

Sometimes the photoelectric device, which switches the lights off and on, becomes faulty. It "fails-safe" and leaves the lights operating all the time.

If the problem persists, you should contact and inform the local authorities/government/agencies/electric company etc. to avoid wasting electricity.

http://www.nidirect.gov.uk...
I cannot write in English, because of the treacherous spelling. When I am reading, I only hear it and am unable to remember what the written word looks like."
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RoyLatham
Posts: 4,488
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10/15/2013 12:51:52 AM
Posted: 3 years ago
Some lighthouses operate on light sensors. As an evil child I would climb up -- they were maybe 8' ft above ground level-- and put my hand over the sensor to start the rotating beacon. Hey, things were pretty dull back then.

Sometimes light sensors get blocked by leaves or debris.