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Video of the fluorescent lamps turn off and back on in the copying room in the storage of Carmel hospital
Link to the video: http://www.youtube.com/watch?v=QYnI4fxQZ3I
Made in tuesday 9.Mar.2010.
All of the fluorescents of this room, operated by preheat magnetic ballasts which includes replacable electronic starters (Shaingot "Electronic Start"), except for the two F40T12 near the door of the room, that operates by more then 30 years old Eltam Rapidstarts (One of these two ballasts have since replaced with its lamp with another Electronic Start ballast and F36T8 lamp).
Keywords: Indoor_Fixtures

Video of the fluorescent lamps turn off and back on in the copying room in the storage of Carmel hospital

Link to the video: http://www.youtube.com/watch?v=QYnI4fxQZ3I
Made in tuesday 9.Mar.2010.
All of the fluorescents of this room, operated by preheat magnetic ballasts which includes replacable electronic starters (Shaingot "Electronic Start"), except for the two F40T12 near the door of the room, that operates by more then 30 years old Eltam Rapidstarts (One of these two ballasts have since replaced with its lamp with another Electronic Start ballast and F36T8 lamp).

Fullscreen_capture_23112010_213625.jpg Fullscreen_capture_16112010_133549.jpg Fullscreen_capture_09112010_124042.jpg T12_of_40W_ends_its_life_on_Rapidstart.jpg Fullscreen_capture_29102010_120906.jpg
File information
Filename:Fullscreen_capture_29102010_120906.jpg
Album name:dor123 / Videos
Keywords:Indoor_Fixtures
Company and Date Manufactured:Ballasts: Shaingot ltd: Electronic Start ballasts, Eltam Ein-Hashofet: Rapidstart ballasts
Wattage:Electronic Start ballasts for 40W and 36W, Rapidstart for 40W only
Lamp Type:Electronic Start ballasts for T12s and T8 retrofits, Rapidstart for T12s only
Filesize:62 KiB
Date added:Oct 29, 2010
Dimensions:1280 x 1024 pixels
Displayed:141 times
URL:http://www.galleryoflights.org/mb/gallery/displayimage.php?pid=3812
Favorites:Add to Favorites

Comment 1 to 4 of 4
Page: 1

GullWhiz   [Nov 01, 2010 at 02:59 AM]
Interesting on how the bad lamps...didn't flash and flash.....instead it stayed dim...kinda like dead Rapid start would do here....but then about a minute it starts to try to turn on and finally turns on!!! But none of them really acted like an American rapid start which flickers on from dim to bright.... They don't act like rapid start here...they act like preheaters...our rapid start don't flash and blink...they just turn on from dim to bright in smooth flow.....a preheaters in USA uses starters and glows the ends and flashes sometimes....the programmed start in USA does not use starter but glows the ends for a few seconds and turns on...
dor123   [Nov 01, 2010 at 07:37 AM]
Jace, the lamps on the fixture with the rapidstarts, are the ones near the door and their lamps aren't bad at all. The rapidstart ballasts in there are >30 years old, and so they have sometimes very long period of dim glow mode, before starting. The rest of the lamps that are ignited without this waiting period, haven't any rapidstart at all, but just preheat magnetic ballasts with and included electronic starters.
This is indeed surprised me that these antique ballasts in the fixture near the door are actually rapidstarts (One already replaced), despite they are igniting the lamps in the same manner of the rest, which are preheaters with electronic starters.
Eltam, called these ballasts, rapidstarts because they operating the lamps more faster then preheaters with glow starter, because there is no flashing during startup.
When lamps in these rapidstart reaches EOL, they just flickers 50hz and after all the emissive coating consumed, they just retains the dim glow discharge endlessly.
GullWhiz   [Nov 01, 2010 at 07:05 PM]
Rapid start have starters? In USA the rapid start does not have any starters at all.....but when reaching EOL...its the same as you discribed...

is your rapid start in series (one ballast 2 lamps) and when one goes EOL the other lamp does same thing?
dor123   [Nov 02, 2010 at 11:15 AM]
Jace, you don't know what i say. Only the lamps near the door, that have the dim glow discharge after this brief turning off, operates by rapidstarts. The others operates just by preheaters with includes replaceable electronic starters each. All the ballasts here operates one lamp, so each fixture have two ballasts.
The two >30 years old rapidstart ballasts near the door (Which one replaced by similar ballast as the others), haven't any starters, but they do electrodes preheating and this is what special about Eltam rapidstarts for T12 40W lamps. The glow discharge of the lamps with these rapidstarts after this brief turning off, is a normal operation of the rapidstarts. It is just very long because of the age of the rapidstart ballasts.

Comment 1 to 4 of 4
Page: 1