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Osram 250w MA/V: Full power electrode. A close up photograph of a 250w Osram medium-pressure mercury lamp operating at full power. Not something you get a chance to see every day! There is the tiniest streamer visible which is making a beeline for the starting electrode above the electrode between the two lead wires.

Osram 250w MA/V: Full power electrode.

A close up photograph of a 250w Osram medium-pressure mercury lamp operating at full power.
Not something you get a chance to see every day!

There is the tiniest streamer visible which is making a beeline for the starting electrode above the electrode between the two lead wires.

387A8572.jpg 387A9018.JPG 387A9565.JPG 387A9609.jpg 387A9625.jpg
File information
Filename:387A9565.JPG
Album name:FrontSideBus / HID: Mercury Vapour
Filesize:1876 KiB
Date added:13 Apr, 2026
Dimensions:1365 x 2048 pixels
Displayed:35 times
URL:http://80.229.24.59:9232/gallery/displayimage.php?pid=24496
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AngryHorse   [13 Apr, 2026 at 09:33 PM]
What’s interesting here is the fact the arc is even initiated on a looped electrode Cool, if you have ever noticed the arc horns on pylons, (the pointy bits each side of the insulator strings), they’re curved or looped, I believe this is to stop any arc fully initiating between them during a brief overload as it’s difficult for them to form on a loop? Very Happy
AngryHorse   [13 Apr, 2026 at 09:34 PM]
Great shot though! Very Happy
Danny   [13 Apr, 2026 at 09:37 PM]
That is a hell of a shot how awesome

Comment 1 to 3 of 3
Page: 1

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