Author Topic: How do crews know when streetlights need to be repaired?  (Read 481 times)
Cole D.
Sr. Member
****
Offline

Posts: 430
View Gallery

123 V 60 CPS


Dk944Mr-jX4jbnoUUj7xAw
How do crews know when streetlights need to be repaired? « on: November 24, 2018, 11:56:09 AM » Author: Cole D.
I know usually for side streets or yard lights, the neighbors to the light report if it's not working. But how do crews know if a light on the highway is not working or needs a new lamp? Since you can't tell during the day and no one is going to report it. And I assume the DOT maintains the fixtures. But at least 1/2 of the LED fixtures installed here about 2 years ago don't work, so most of the road is dark at night. Yet, the parts with HPS still work but maybe two or three lights, and I saw one was greened out.

I think with the LEDs its a wiring or switching problem, since so many are off.
Logged
Medved
Hero Member
*****
Offline

Gender: Male
Posts: 4050
View Gallery

Re: How do crews know when streetlights need to be repaired? « Reply #1 on: November 24, 2018, 05:44:28 PM » Author: Medved
Tradditionally they expected certain failure rate as a function of their age and so the just do the maintenance on scheduled dates. Because the reliability performance was pretty well known, the result were just acceptable number of nonworking lights.
The LEDs bribg two new things there: First the reliability performance of the new technology, so the corresponding schedule is still unknown, as a head start many operators choose to blindly trust the makers (with tradditional technologies that worked pretty well, mainly because the makers had a lot of reliable data; with LEDs are no userul dataavailable and so the industry is heavily contaminated with marketing BS, the undermaintained systems are the result).
Other problem is, the new fixtures were put on the old poles and wiring, an attempt to save cost. And after the time the wiring served there everything becomes brittle and ready to break, but usually continues working when kept untouched. So such messing with it caused many defects, so the group problems. Such massive overhauls never happened in such large scale before, so it was quite "easy" to underestimate the consequences (before the fixtures were just spot replaced when some failed, or mass replaced when there was wiring overhaul)
« Last Edit: November 24, 2018, 05:47:32 PM by Medved » Logged

No more selfballasted c***

dor123
Hero Member
*****
Offline

Gender: Male
Posts: 2390
View Gallery
Other loves are computers, office equipment, A/Cs


WWW
Re: How do crews know when streetlights need to be repaired? « Reply #2 on: November 25, 2018, 03:44:40 AM » Author: dor123
Here in Kiryat Ata, they doing a periodically a monthly maintenance, when they dayburning groups of lanterns, so they can see if some lanterns don't works, and relampping them and/or turning on the breaker if it was tripped.
Logged

I"m don't speak english well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I hope that LED won't replace all forms of other light

Lightingguy1994
Sr. Member
****
Offline

Gender: Male
Posts: 366
View Gallery


Re: How do crews know when streetlights need to be repaired? « Reply #3 on: December 11, 2018, 10:28:57 PM » Author: Lightingguy1994
Where I am each pole has a number on it and anyone can report it to the utility or the citys maintenance hotline number. The city crews may also notice dark fixtures and make note of them when they are out at night for unrelated reasons
Logged
icefoglights
Hero Member
*****
Offline

Gender: Male
Posts: 614
View Gallery

ITT Low Pressure Sodium NEMA


GoL
Re: How do crews know when streetlights need to be repaired? « Reply #4 on: December 24, 2018, 01:05:12 PM » Author: icefoglights
Where I live, I believe they do group relamping after a certain number of hours.  Also, most state maintained street lights are on group photocells, so a stretch of lights can be turned on during the day for inspections.
Logged

01010010 01101111 01100010 01100101 01110010 01110100

Print 
© 2005-2019 Lighting-Gallery.net | Powered by SMF 1.1.21 | SMF © 2015, Simple Machines