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Cooper OVM

Cooper OVM

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I'd say that this is a little heavy for this arm (or the thru bolt is loose) as it is pulling away from the pole. This street is a mix of AEL 115's OVM's among others only the large lights are sagging like this and have been for as long as I've seen them.The only large one not sagging are one the underbraced HAPCO arms .

DSCN3524.JPG DSCN3525.JPG DSCN3519.JPG DSCN3513.JPG

Light Information

Light Information

Manufacturer:Cooper
Model Reference:OVM
Lamp
Lamp Type:HPS
Fixture
Fixture Type:Cobra- head
Location:Intersection of S. Front street and Frederick street Columbus Oh.
Physical/Production
Application/Use:streetlighting.

File information

File information

Download: Download this File
Filename:DSCN3519.JPG
Album name:wide-lite 1000 / Roaming
Keywords:Lanterns
File Size:375 KB
Date added:Nov 16, 2019
Dimensions:2464 x 1848 pixels
Displayed:59 times
Date Time:2019:11:14 15:41:39
DateTime Original:2019:11:14 15:41:39
Exposure Bias:0 EV
Exposure Time:1/250 sec
FNumber:f 6.6
Flash:No Flash
Flash Setting
Focal length:36 mm
ISO:80
Make:NIKON
Model:COOLPIX A300
Quality:NORMAL
Software:COOLPIX A300V1.2
White Balance:0
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Comments
fluorescent lover 40
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Lights are awesome! :)


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Nov 16, 2019 at 11:08 AM Author: fluorescent lover 40
Yep an OVM. Over here, they're not that common.

Power provider: Southern California Edison (SCE)

-Date decoder of some US lamps 1960-present.
-Switch and receptacle collector.
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wide-lite 1000
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Nov 16, 2019 at 06:10 PM Author: wide-lite 1000
Thanks ! I won't call them common here either but they are sprinkled all over Columbus and the surrounding areas .

I kinda like these !

Collector,Hoarder,Pack-rat! Clear mercury Rules!!

GE101R
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Nov 16, 2019 at 06:27 PM Author: GE101R
Look at the weld at base on that rusty arm. Geeze..
wide-lite 1000
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Nov 16, 2019 at 06:48 PM Author: wide-lite 1000
That arm should have been retired years ago . I love how the bottom is digging into the pole and the top is pulling out !

City of Columbus upkeep at it's finest !!!

Collector,Hoarder,Pack-rat! Clear mercury Rules!!

GE101R
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Nov 16, 2019 at 08:49 PM Author: GE101R

That arm should have been retired years ago . I love how the bottom is digging into the pole and the top is pulling out !

City of Columbus upkeep at it's finest !!!

Good looking cobra from the side. I don't believe I have ever saw one in service.
streetlight98
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Mike McCann


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Nov 16, 2019 at 09:07 PM Author: streetlight98
Looks like the thru bolt just needs to be tightened. Wood poles shrink over time so it's not all that uncommon for the arms to do this. That's why the lag bolts are also important, to prevent the arm from falling right away if it slips off the thru-bolt.

This is a Joslyn arm, BTW. I have a 4ft aluminum version with JYN stamped on it. Mine is drooping at the end, as it was likely intended for remote ballast or incandescent lights but had a heavier cobrahead. This is a steel arm though, so I doubt it's really bending.

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

GE101R
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Nov 16, 2019 at 10:23 PM Author: GE101R

Looks like the thru bolt just needs to be tightened. Wood poles shrink over time so it's not all that uncommon for the arms to do this. That's why the lag bolts are also important, to prevent the arm from falling right away if it slips off the thru-bolt.

This is a Joslyn arm, BTW. I have a 4ft aluminum version with JYN stamped on it. Mine is drooping at the end, as it was likely intended for remote ballast or incandescent lights but had a heavier cobrahead. This is a steel arm though, so I doubt it's really bending.

That and the base is too small for a large weight on the arm. IMO
wide-lite 1000
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Nov 16, 2019 at 11:10 PM Author: wide-lite 1000
Tightening the bolt would make a significant improvement. The city will never do it though. I'd guess this originally had a much lighter fixture such as a clam shell or incandescent .

Collector,Hoarder,Pack-rat! Clear mercury Rules!!

streetlight98
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Mike McCann


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Nov 17, 2019 at 09:14 AM Author: streetlight98
I agree, a larger pole bracket should have been used on the arm. The arms in my area that sag the most have close thru-bolt/lag bolt spacing on the pole. The arm probably wasn't engineered for a heavy self-ballasted cobrahead.

Yeah they don't tighten the bolts here either. Around here the arm would stay like this until the pole was replaced. When the light is transferred, it would get cranked down. The utility company here gets lazy on the lag bolts though, usually only installing one lag bolt instead of two, or not installing any lags at all! When their now-recently installed pole age and shrink, the thru-bolts will come loose and the arms could fall off the pole and injure/kill people. Not a good practice IMO.

Please check out my newly-updated website! McCann Lighting Company is where my street light collection is displayed in detail.

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