Author Topic: Will 215 OCV make a lamp lose vacuum?  (Read 181 times)
Fluorescent05
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Zack


Will 215 OCV make a lamp lose vacuum? « on: September 15, 2018, 07:39:53 AM » Author: Fluorescent05
I have an F20T12 trigger start ballast that currently runs a lamp with a broken cathode. When I insert only one pin on the end with the broken cathode, it starts to flash orange, blue, and swirl while the whole tube flickers madly. My parents would get mad if it lost vacuum. The ballast has a 215 volt OCV.
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funkybulb
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Re: Will 215 OCV make a lamp lose vacuum? « Reply #1 on: September 16, 2018, 04:47:32 AM » Author: funkybulb
iwhen you loose vacumme lamp sucking air In and  mercury tend stays in the tube.being a 2 lamp  trigger start  it needs high OCV to run 2 lamp in series. many times lamp will runon one bin in rapid startt.  but you will get very shortlife if one end is heated and ither end not  making contact both pins.  the non heated end will sputter off .  that why your seeing all kinds of flashes
and sputtering.   rapid stsrt and trigger start seldom
looses vacumme though.  when cathode breaks
it usually be dimmed or wont start at all next  time
you throw a switch.
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suzukir122
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Re: Will 215 OCV make a lamp lose vacuum? « Reply #2 on: September 16, 2018, 06:13:54 AM » Author: suzukir122
Normally with rapid start and even trigger start, the lamp will simply have trouble firing up. The more you start it up,
the longer start up time will be at this point. It *might* not lose vacuum, but it's not impossible. I've actually had an F15T8 lamp loose
vacuum not too long ago. That was on one of my: 1 lamp GE Bonusline 0.32amp 0 degree Trigger Start ballast(s). I've had another
F15T8 lamp lose vacuum as well on a regular 1 lamp GE Bonusline Trigger Start ballast, (0.28amp) but that was because the electrode
filament melted apart and fell on the glass, resulting in a hole through the glass. That EOL show, even with that ballast,
was also still very entertaining. Brilliant orange flashing, brilliant orange swirling... etc.
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Fluorescent05
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Re: Will 215 OCV make a lamp lose vacuum? « Reply #3 on: September 16, 2018, 04:55:49 PM » Author: Fluorescent05
iwhen you loose vacumme lamp sucking air In and  mercury tend stays in the tube.being a 2 lamp  trigger start  it needs high OCV to run 2 lamp in series. many times lamp will runon one bin in rapid startt.  but you will get very shortlife if one end is heated and ither end not  making contact both pins.  the non heated end will sputter off .  that why your seeing all kinds of flashes
and sputtering.   rapid stsrt and trigger start seldom
looses vacumme though.  when cathode breaks
it usually be dimmed or wont start at all next  time
you throw a switch.

It already had a broken cathode. It looks like an EOL on an HF instant start ballast. The ballast is a 1 lamp LPF ballast.
« Last Edit: September 16, 2018, 04:58:01 PM by Fluorescent05 » Logged

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suzukir122
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Re: Will 215 OCV make a lamp lose vacuum? « Reply #4 on: September 17, 2018, 06:35:41 AM » Author: suzukir122
 Shocked... OHHH... oops! Forget everything I stated before in my previous comment. I was thinking your ballast was a 1, or 2 lamp
HPF Trigger Start ballast. Since it's a 1 lamp LPF Trigger Start ballast, the way it'll behave with an EOL lamp, should be totally different
from how a HPF Trigger Start ballast behaves. I'm pretty sure you should get a violent EOL show, and also rectification... similiar
to what you'd see on an Instant Start magnetic Slimline ballast, on the blue wire side. At least I think that should be the result.
I could be wrong... but regardless, I'm pretty sure it'll be tough on that 1 lamp LPF Trigger Start ballast. Don't those ballasts over heat
with EOL lamps?
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Fluorescent05
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Re: Will 215 OCV make a lamp lose vacuum? « Reply #5 on: September 17, 2018, 01:23:00 PM » Author: Fluorescent05
Shocked... OHHH... oops! Forget everything I stated before in my previous comment. I was thinking your ballast was a 1, or 2 lamp
HPF Trigger Start ballast. Since it's a 1 lamp LPF Trigger Start ballast, the way it'll behave with an EOL lamp, should be totally different
from how a HPF Trigger Start ballast behaves. I'm pretty sure you should get a violent EOL show, and also rectification... similiar
to what you'd see on an Instant Start magnetic Slimline ballast, on the blue wire side. At least I think that should be the result.
I could be wrong... but regardless, I'm pretty sure it'll be tough on that 1 lamp LPF Trigger Start ballast. Don't those ballasts over heat
with EOL lamps?
The ballast already runs very hot with a good lamp.
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suzukir122
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Re: Will 215 OCV make a lamp lose vacuum? « Reply #6 on: September 17, 2018, 01:38:34 PM » Author: suzukir122
It might heat up to the point of tar spillage then with an EOL lamp. Shocked That would suck
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Interests
1. Motorcycles, Women, and Lighting (especially fluorescent)
2. Weighting/staying extremely athletic
3. Severe Thunderstorms of all kinds
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Yep
Lighting has been a passion of mine since I was born. I consider everyone on LG to be a friend

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