WMATA removes fire extinguishers from railcars

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davinp
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WMATA removes fire extinguishers from railcars

Post by davinp »

After several incidents of fire extinguishers been discharged on train (mostly the 7000 series), WMATA removed the fire extinguisher.
The problem with that is what if it is needed in an emergency and they are unable contact the train operator?

https://railtransitops.org/2018/12/18/s ... rail-cars/" onclick="window.open(this.href);return false;

farecard
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Re: WMATA removes fire extinguishers from railcars

Post by farecard »

"and cleaned as a result of the CO2 dust..."

What dust?
CO2 aka dry ice evaporates...

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Sand Box John
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Re: WMATA removes fire extinguishers from railcars

Post by Sand Box John »

"farecard""and cleaned as a result of the CO2 dust..."

What dust?
CO2 aka dry ice evaporates...


Class ABC dry chemical fire extinguisher. Monoammonium phosphate and ammonium sulfate, discharging is done with compressed nitrogen.

Just another example of someone working in media relations that knows nothing about the subject matter at issue.
John in the sand box of Maryland's eastern shore.

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Re: WMATA removes fire extinguishers from railcars

Post by farecard »

Sand Box John wrote:
Class ABC dry chemical fire extinguisher. Monoammonium phosphate and ammonium sulfate, discharging is done with compressed nitrogen.
The in-car extinguishers were CO2, not powder...

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Sand Box John
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Re: WMATA removes fire extinguishers from railcars

Post by Sand Box John »

"farecard"
The in-car extinguishers were CO2, not powder...


Then why were the cars taken out of service for "cleanup"? CO2 is a gas, not a solid.
John in the sand box of Maryland's eastern shore.

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Re: WMATA removes fire extinguishers from railcars

Post by farecard »

Sand Box John wrote:"farecard"
The in-car extinguishers were CO2, not powder...


Then why were the cars taken out of service for "cleanup"? CO2 is a gas, not a solid.
a) CO2 is a solid called dry ice. It's also a liquid & a gas at various temperatures/pressures. But it would evaporate in a short period of time.

b) Maybe from overreaction, or maybe they swapped out the extinguishers at some point. CO2 is excellent for some fires but less effective for others. Power units do make a gawd awful mess as the powder bakes onto the hot surfaces; far less when just spilled.

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Sand Box John
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Re: WMATA removes fire extinguishers from railcars

Post by Sand Box John »

"farecard"
b) Maybe from overreaction, or maybe they swapped out the extinguishers at some point. CO2 is excellent for some fires but less effective for others. Power units do make a gawd awful mess as the powder bakes onto the hot surfaces; far less when just spilled.


Look like dry chemical to me,
John in the sand box of Maryland's eastern shore.

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Re: WMATA removes fire extinguishers from railcars

Post by farecard »

Sand Box John wrote: Look like dry chemical to me,
Yep those are not the CO2 bottles I recall seeing under the seats.

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