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Coach Fire Supression

February 28, 2015, 07:56:40 pm

In trying to come up with a reasonable, easy to install Fire Supression system for the FT I stumbled on this.
Blazecut Fire Suppression System - JOGR

Not large enough, nor the correct media, for the engine bay, but it looks good for the battery's, electronics, under dash, and maybe in a generator enclosure?

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Re: Coach Fire Supression

Reply #1 – February 28, 2015, 09:36:06 pm

I doubt that it would be anywhere large enough to extinguish a fire in generator or elec compartments.  Most of the foam suppression systems sold for those purposes seems to be at least 2 liters.

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Re: Coach Fire Supression

Reply #2 – February 28, 2015, 11:26:28 pm

It's a big time scam! Fire extinguishers are rated A, B, or C with an accompanying UL (underwriters lab) number indicating how effective they are. A is paper, wood, rubber, plastics, common combustibles, B is gasoline, diesel, oil, etc, C is electrically charged equipment. The extinguisher advertised above states ABC but no number. Guess why?

A typical 5 lb dry chemical is U/L Rating: 3A:40B:C. This means not so good on paper, wood, etc but excellent for flammable liquids and electrical. So, it takes 5 lbs of monoammonium phosphate to achieve a rating of 40B:C. How effective do you think an ounce or two is going to be?

Pierce

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Re: Coach Fire Supression

Reply #3 – March 04, 2015, 10:46:48 pm

Since I was asked, I don't know how effective an ounce or two is going to be, I assume that you do ? This system uses 1 lb of "clean media", Novec, slightly more effective than Halon, but has no impact on the environment. The SS30 extinguisher which many of us have for our refer compartment contains a like amount of Halon. The SS30 activates when the temp at ITS location reaches activation temp, it then floods the compartment. This unit melts at the location of the FIRE then it empties its content where it's needed....on the fire.

The 40B rating becomes fairly irrelevant when protecting enclosures with clean agents.  The "40" is based on coverage for an open area, in square feet. In the case of the 40B:C that would be a 40 sq ft fire. Clean agents are  pretty ineffective in the open. I would hate to face a 40 sq ft B fire with a 20 lb halon extinguisher, or 100 lb for that matter. For enclosures protected by clean agent systems, normally a % of saturation for the cubic feet protected is used to determine the amount of media required.

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Re: Coach Fire Supression

Reply #4 – March 04, 2015, 10:59:06 pm

I couldn't add to the above on edit butttt

I have an SS30 in my electronics bay, I haven't got the one in the refer to fit, to tight. I have been talking with Jim Bounds FireFight products. I'll probably have his largest foam system in my engine bay, with 2 heads on 4' hoses. A smaller foam Sys in the generator compartment. Although I may go with the same large system and cover the generator, fuel tank and battery areas. I would like to protect the under dash, but nothing is really practical except something like the Blazecut.

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