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On Sun, 7 Feb 2016 19:08:27 -0500, "Mr. Luddite"
wrote: On 2/7/2016 6:56 PM, wrote: On Sun, 7 Feb 2016 17:12:11 -0500, "Mr. Luddite" wrote: I noticed something over the weekend that all you "southerners" don't have to deal with. Pretty much all traffic lights are now high output LEDs. Saves energy and they last a long time, but there's a problem. After a wind swept snow storm with heavy wet snow that then freezes like we had Friday, the lights become completely covered and you can't see which one is on. The LED's aren't hot enough to melt the snow away like the old fashioned incandescent types, so even 24 hours after the snow stopped flying you still can't see which of the lights are lit at many intersections. Causes quite a bit of confusion until people realize what the issue is. I suppose the trick would be to coat the lenses with something snow won't stick to. If that doesn't work I guess is that thermostatically controlled heater Don mentioned is the next step. This is not the first time I heard this story. I am surprised someone hasn't fixed it. Must be Bush's fault. I was just reading about it. The correction is to add heaters on the main lenses but it's an expensive process to convert them all. Some don't have the supplied power or wiring to run heaters because they were designed for low current, LED lights only. A coating on the main lens isn't really practical. The wind driven wet crap will stick to teflon with no problem and any coating that worked would have to be routinely redone. Here's a typical LED traffic light pretty much covered up: http://tinyurl.com/grjpr6t Strange transformer deal you got going there. I thought someone was getting 3p but I don't see a 3p drop. It looks like it is just 3 tiny (15-25kva?) transformers feeding 3 120/240 customers. FPL would have dropped a 50kva pig in there and be done with it. |
#3
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posted to rec.boats
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On 2/7/2016 8:52 PM, wrote:
On Sun, 7 Feb 2016 19:08:27 -0500, "Mr. Luddite" wrote: On 2/7/2016 6:56 PM, wrote: On Sun, 7 Feb 2016 17:12:11 -0500, "Mr. Luddite" wrote: I noticed something over the weekend that all you "southerners" don't have to deal with. Pretty much all traffic lights are now high output LEDs. Saves energy and they last a long time, but there's a problem. After a wind swept snow storm with heavy wet snow that then freezes like we had Friday, the lights become completely covered and you can't see which one is on. The LED's aren't hot enough to melt the snow away like the old fashioned incandescent types, so even 24 hours after the snow stopped flying you still can't see which of the lights are lit at many intersections. Causes quite a bit of confusion until people realize what the issue is. I suppose the trick would be to coat the lenses with something snow won't stick to. If that doesn't work I guess is that thermostatically controlled heater Don mentioned is the next step. This is not the first time I heard this story. I am surprised someone hasn't fixed it. Must be Bush's fault. I was just reading about it. The correction is to add heaters on the main lenses but it's an expensive process to convert them all. Some don't have the supplied power or wiring to run heaters because they were designed for low current, LED lights only. A coating on the main lens isn't really practical. The wind driven wet crap will stick to teflon with no problem and any coating that worked would have to be routinely redone. Here's a typical LED traffic light pretty much covered up: http://tinyurl.com/grjpr6t Strange transformer deal you got going there. I thought someone was getting 3p but I don't see a 3p drop. It looks like it is just 3 tiny (15-25kva?) transformers feeding 3 120/240 customers. FPL would have dropped a 50kva pig in there and be done with it. Looks like 208 wye to me. |
#4
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On Mon, 8 Feb 2016 01:51:30 -0500, "Mr. Luddite"
wrote: On 2/7/2016 8:52 PM, wrote: On Sun, 7 Feb 2016 19:08:27 -0500, "Mr. Luddite" wrote: On 2/7/2016 6:56 PM, wrote: On Sun, 7 Feb 2016 17:12:11 -0500, "Mr. Luddite" wrote: I noticed something over the weekend that all you "southerners" don't have to deal with. Pretty much all traffic lights are now high output LEDs. Saves energy and they last a long time, but there's a problem. After a wind swept snow storm with heavy wet snow that then freezes like we had Friday, the lights become completely covered and you can't see which one is on. The LED's aren't hot enough to melt the snow away like the old fashioned incandescent types, so even 24 hours after the snow stopped flying you still can't see which of the lights are lit at many intersections. Causes quite a bit of confusion until people realize what the issue is. I suppose the trick would be to coat the lenses with something snow won't stick to. If that doesn't work I guess is that thermostatically controlled heater Don mentioned is the next step. This is not the first time I heard this story. I am surprised someone hasn't fixed it. Must be Bush's fault. I was just reading about it. The correction is to add heaters on the main lenses but it's an expensive process to convert them all. Some don't have the supplied power or wiring to run heaters because they were designed for low current, LED lights only. A coating on the main lens isn't really practical. The wind driven wet crap will stick to teflon with no problem and any coating that worked would have to be routinely redone. Here's a typical LED traffic light pretty much covered up: http://tinyurl.com/grjpr6t Strange transformer deal you got going there. I thought someone was getting 3p but I don't see a 3p drop. It looks like it is just 3 tiny (15-25kva?) transformers feeding 3 120/240 customers. FPL would have dropped a 50kva pig in there and be done with it. Looks like 208 wye to me. That is what I thought but the drops look like triplex, 2 hots and the bare messenger/neutral |
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