Author Topic: EEVblog #763 - Dumpster Plasma TV Bad Cap Repair  (Read 14676 times)

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Offline hdj80r

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Re: EEVblog #763 - Dumpster Plasma TV Bad Cap Repair
« Reply #25 on: July 13, 2015, 01:40:44 pm »
Hi Dave,

If you set the fire alarm off, then Fire & Rescue NSW may charge your building owners a fee. The fee charges by FRNSW is $1250, but your building owner may add a surcharge to that. Your building is allowed one false alarm every 60 days, so you may not always be charged.

Here is the FRNSW link:   https://www.fire.nsw.gov.au/page.php?id=77
and guide to waive false alarms: https://www.fire.nsw.gov.au/gallery/files/pdf/partners/2009/4_guide.pdf

While I doubt that one capacitor losing its smoke would set of the detector, unless your building is getting false alarm activations regularly,  it is most likely that that the cause would be put down to a genuine activation caused by the capacitor being on fire and self extinguishing, and you would not charged.

A much more interesting and sensitive smoke detector is a VESDA, or aspirating smoke detector which are often used to protect computer rooms, etc. The smoke from a soldering iron soldering one connection is often sufficient to set them off (speaking from experience  :-[

https://en.wikipedia.org/wiki/Aspirating_smoke_detector

 

Offline Fungus

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Re: EEVblog #763 - Dumpster Plasma TV Bad Cap Repair
« Reply #26 on: July 13, 2015, 01:51:03 pm »
While I doubt that one capacitor losing its smoke would set of the detector
One of those big ones? I'm not so sure. They can produce a LOT of filth and stink if they go off.




I'd have covered up the detector for a few minutes, just in case.

 

Offline hdj80r

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Re: EEVblog #763 - Dumpster Plasma TV Bad Cap Repair
« Reply #27 on: July 14, 2015, 12:17:35 am »
Quote
One of those big ones? I'm not so sure. They can produce a LOT of filth and stink if they go off.

While they certainly produce a lot of smell, the actual amount of smoke produced is quite small compared to an actual  fire, and by the time it is dispersed in a room, should not set of a normal optical smoke detector.
 

Offline Fungus

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Re: EEVblog #763 - Dumpster Plasma TV Bad Cap Repair
« Reply #28 on: July 14, 2015, 10:29:11 am »
Quote
One of those big ones? I'm not so sure. They can produce a LOT of filth and stink if they go off.

While they certainly produce a lot of smell, the actual amount of smoke produced is quite small compared to an actual  fire, and by the time it is dispersed in a room, should not set of a normal optical smoke detector.
Depends on how many of them go off simultaneously....  :scared:
 

Offline combsbt

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Re: EEVblog #763 - Dumpster Plasma TV Bad Cap Repair
« Reply #29 on: July 16, 2015, 06:43:40 pm »
I actually have two of these TV's, both with lines on them. At first, you could at times get rid of the lines by banging the top front of the glass panel, though to any onlookers this would look like you're having a mental breakdown as we used to smack the crap out of the things.



Well...
 

Offline Sparkie1967

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Re: EEVblog #763 - Dumpster Plasma TV Bad Cap Repair
« Reply #30 on: January 28, 2018, 12:37:08 pm »
Hi Dave, just looking throw some of your older episodes and noted a question about your smoke detector.
This unit looks like a Notifier FSP851AUS analogue addressable smoke detector most likely hooked up to a Notifier IFS2800 FIP.
By default these detectors are factory set at 8% obscuration but can be varied up or down.
These are most sensity to opaque types of smoke such as failed caps, burning wires or dust. No so sensitive to clea  burning fires such as solvents or alcohol.
You can get various detection chambers which can plug into the system sensor base such as CO detectors, multi criteria detectors and high sensitivity laser smome detectors.

If false alarms are becoming a prob delays can be programmed to give you time to clear out the smoke.

 


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