Here is a maroon FPOLC/Sun-Tech photocontrol. According to the spec sheet, this is supposed to be a 185-305V photocontrol, but on the sticker on the bottom, it's labeled as 120-277V. It could possibly just be an error when they printed the labels.
Yeah but I don't think any of their electronic photocontrols are offered rated 120-277. It would be 105-305. Online it says 185-305 for this model. So basically this would be a 240V photocontrol. I think it's a mistype. They might have entered the wrong information.
Well 105-305 is the same thing as 120-277. Something rated at 120-277V is actually capable of running between 105 and 305V but 105V and 305V don't exist as nominal voltages. The actual voltages would be 120, 208, 240, or 277.
Also to protect the PCs from line spikes or drops. Sometimes if the power dips or whatever, the lower voltage means higher amperage so the PC might not be able to handle that, but if they factor that in they can "protect" the PC from damages. IMO, PCs tend to last much longer than lamps. It's too bad lamps and PCs are replaced together. With my own poles, I'll only replace the PCs when they fail. Same for lamps. If the light becomes a dayburner, unless the lamp is really dimmed or whatever I won't replace it. Just the PC. I will open up the light to inspect the insides while I'm up there though. Check the condition of the wires and make sure no critters are living inside...
Same here. It's a waste to replace the photocontrol when it's working perfectly fine. Electric utilities do it because it's probably cheaper to just replace the photocontrol while they're up there than to send a truck back out if it dayburns. It costs way more to send a truck out than a $5-$10 photocontrol.
Yeah and they also don't want to risk dayburners because the city doesn't get charged for the energy consumed by dayburners during daylight hours. The utility would rather have dead bulbs than dayburners because it means more money for them. So making sure all the PCs are working is important to them, but a total waste of good PCs.
I wonder if LCEC will still replace the longlife photocontrols they started using, at every re-lamping. Because they're still installing HPS luminaires for the higher wattages such as 250 and 400. I should keep an eye on that. If they do, that would be an even bigger waste.
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