This 50W HPS 113 in the picture above was recently replaced by a 50W HPS M-250R2. I don't know why either, since it worked right up until it was replaced. :-|
Possible that when it was being serviced the ignitor may hay have been going bad and would not fire the new lamp. I get this from time to time. Though I would generally replace the ignitor, a lot of places simply replace the whole fixture.
Maybe. Recently an OVC got replaced out of the blue too, just a month after it was relamped. It seems the lights that have been cycling forever that I keep reporting never get fixed and random lights get replaced seemingly out of the blue lol. This is a little taller than average here but lights are generally around this height here. Lights on older poles are lower down but when NGrid does a pole renewal, the light's about this height.
Now this is one tall light! It's gott be like 45ft up there! It's near my house, the wires way high up to clear the railroad track. The railroad track has been a bike path for 20+ years though. There are old telegraph poles alongside the bikepath though no inulators or wires left (they just took out the rails and paved a bikepath in its place). I'm not sure if the mast arm leads are pre-feed up the arm before they load them onto the truck, but maybe they just didn't feel like running the fixture leads down the pole 12ft to an acceptable height lol. (a lot of extra materials and labor for something that's really not worth doing) It's a 250w HPS light, so it gives decent light, though at that height, it's about as effective as a 70 or 100W light, just lights a larger area since it's up so high lol.
You'r right but it's definitely a reach. You have an Altec lift system right ? The ones we us are a 42 foot reach or at least that's what Altec sais. I guess if you include the truck itself it would be more.
Yes, if I remember ours are 38 ft. It would be pretty much stretched out but def within reach. I would say that light is mounted roughly 30-35 ft. Only using the mounted pole # which is usually 5-6 ft. Again only guessing but usually mounted in that range.
Yea I think your right its just the angle of the pic. that makes it look so high. There is an older ITT 25 that's mounted about 60 feet on a pole overlooking an abandoned gas station here. 400 watt MV. And there's also an AEL 125 about 50 foot of the ground downtown at an intersection. Getting a little silly with the mounting height around these parts. lol.
Yeah the mast arm the 113 above is on is 6ft long. It's a little high for a 50W HPS in my opinion but it's not above average here. Probably 30-35ft like gmercury2000 guessed. The M-250R2 I linked in my last comment is on a 10ft or 12ft truss arm. That one is definitely way up there lol.
We have a F-750 with a 41' bucket we use for streetlighting repair. Most of our lights are no higher than 35' a couple of the hard to reach ones we end up using the full size truck.
We never change out ignitors on fixtures. Our company just wants the lights fixed ASAP so most of the time if it don't fire, it gets replaced.
Yeah for HPS fixtures, if it doesn't light with a new lamp and PC it gets replaced. They will replace refractors on small lights usually and will replace the door on most M-250R2s and sometimes on 113s.
I'll generally repair what I can, all depends on work load and time. If it's faster to replace than repair I will. Thank god for plug in ignitors. We also have a tester to check short circuit voltage to see if the ballast is good. That helps diagnose and lower cost by not replacing non defective parts.
Now this is one tall light! It's gott be like 45ft up there! It's near my house, the wires way high up to clear the railroad track. The railroad track has been a bike path for 20+ years though. There are old telegraph poles alongside the bikepath though no inulators or wires left (they just took out the rails and paved a bikepath in its place). I'm not sure if the mast arm leads are pre-feed up the arm before they load them onto the truck, but maybe they just didn't feel like running the fixture leads down the pole 12ft to an acceptable height lol. (a lot of extra materials and labor for something that's really not worth doing) It's a 250w HPS light, so it gives decent light, though at that height, it's about as effective as a 70 or 100W light, just lights a larger area since it's up so high lol.
On the contrary, This is the lowest-mounted light I've ever seen, also in Cranston. Most likely due to all the primary lines above. It's 100W HPS.
We never change out ignitors on fixtures. Our company just wants the lights fixed ASAP so most of the time if it don't fire, it gets replaced.