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Old 25 September 2006, 10:48   #1
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Fire Extinguishers

Currently looking at fire extingushers for our inboard diesel. The commercial requirement says the spec of a fire extinguisher is rated minimum of 5A/34B.

From talking to shops at the boat show yesterday they say this rating refers to manual activated dry powder, and that in an engine compartment you need automatic (halon replacement preferred as they said that dry power will ruin engine if it gets into it).

At the show there was plenty of shops selling automatic ones but none of the automatic were rated (except to say A/B/C rated)

So does one get manual extinguishers actually rated 5A/34B (or better) stored outside the engine compartment then also get an automatic one for the compartment????

Pete
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Old 25 September 2006, 14:01   #2
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AFFF like this?

http://www.safety-marine.co.uk/Fire-....htm?P3405-S14-
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Old 25 September 2006, 18:10   #3
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Two different requirements!

5A/34B rated extinguishers are what the code requires for "accommodation" or other spaces. Engine rooms are another matter and are considered separately.

Would suggest a gaseous automatic for the engine compartment backed up via a fire port in the engine box that you can fire a big dry powder into.
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Old 25 September 2006, 18:14   #4
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these two will get you out of most trouble
2kg carbon dioxide (34B)
4kg ABC powder (113B)

the 4kg will get in a pod just powder is a last resort as it destroys everything.
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Old 25 September 2006, 21:52   #5
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Wouldn't let a powder extinguisher anywhere near my boat - I have 2x 2kg AFFF foam - would rather Halon but of course it's been banned by the Greens - funny reqally as they were all Green!!!

Talking of which do people remember when fire extinguishers used to be colour coded? It was great - red for water - black for CO" - Green for Halon etc etc. Brilliant idea and so simple - until the bloody EU decided every extinguisher HAD to be red so you would have to stop and read the stupid bloody labels - great in an emergency!!!
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Old 26 September 2006, 04:36   #6
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Powder is an essential i wouldnt step on a boat without one, after you have done some serious offshore passages you will realise that its not what it damages but to stop the fire and the best charnce you have is powder
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Old 01 October 2006, 11:51   #7
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I would have Powder and an additional Co2 - at the end of the day if you can stop a fire by squirting CO2 through the air intake while it is still running then you won't damage anything. But when you have flames, the aim will be to put it out rather than look after the engine. Afterall that's what insurance is for.
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Old 02 October 2006, 14:18   #8
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I've got a 'Halon Replacement' Firemaster GTFE2000 Auto Extinguisher in my engine box.

I was advised (for coding) not to put an auto powder or AFFF extinguisher in the box, as the auto heads have been known to go off when not required - and if they do they'll trash your engine. With a gaseous unit, I understand that your engine will still stop due to lack of oxygen - but it won't kill it.

I've also fitted fire access flaps on the box to deliver additional extinguishant if required.

I also carry 2 powder extinguishers as well.

D...
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Old 04 October 2006, 13:02   #9
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Where can you buy Fire Flaps from?
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Old 05 October 2006, 04:05   #10
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Quote:
Originally Posted by PeteSmith
Where can you buy Fire Flaps from?
Make them, they are just a cover like the type you sometimes see on a door lock to keep the rain out of the lock. Mine are cut from a spare piece of GRP with the bolt hole near the top.

Pete
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