Guest Zixel Posted June 7, 2019 Report Share Posted June 7, 2019 Why do people use foam? Powder has a batter range on all A and B classes, and also is a cheaper way? Also powder can take out fire of electric devices. Is there any purpose where foam is the best choise comparing to any other type of extinguisher? Thanks Quote Link to comment Share on other sites More sharing options...
Safelincs Posted June 8, 2019 Report Share Posted June 8, 2019 Hi Powder extinguishers are great for generators, vehicles etc, however, they are now frowned-upon for indoor use, as they can drastically reduce visibility and can cause harm through inhalation. They are also costly to clean up after (relevant if there is any risk of misuse or vandalism). For indoor use, foam, water and water mist are now the most common extinguishers, with CO2 still supplied for high voltage applications and server rooms. For typical office use with electrical equipment you should use extinguishers that have been tested dielectrically to 34,000 Volt. This applies to some foams and water mist extinguishers with de-ionised water. Harry Quote Link to comment Share on other sites More sharing options...
Guest Zixel Posted June 28, 2019 Report Share Posted June 28, 2019 On 08/06/2019 at 23:42, Safelincs said: Hi Powder extinguishers are great for generators, vehicles etc, however, they are now frowned-upon for indoor use, as they can drastically reduce visibility and can cause harm through inhalation. They are also costly to clean up after (relevant if there is any risk of misuse or vandalism). For indoor use, foam, water and water mist are now the most common extinguishers, with CO2 still supplied for high voltage applications and server rooms. For typical office use with electrical equipment you should use extinguishers that have been tested dielectrically to 34,000 Volt. This applies to some foams and water mist extinguishers with de-ionised water. Harry In my country we dont have water mist ones on our market. And no any water Only powder, foam, CO², liquid chemical. Are foam extinguisher any good for class A? Quote Link to comment Share on other sites More sharing options...
Tom Sutton Posted July 3, 2019 Report Share Posted July 3, 2019 It was common to use them on class A in this country, a few years ago but new type extinguisers have changed views generaly and now usually confined to flammable liquids. Quote Link to comment Share on other sites More sharing options...
AnthonyB Posted July 3, 2019 Report Share Posted July 3, 2019 Foam extinguishers are suitable for Class A fires as predominantly water based and in the UK all carry a Class A rating (in some cases a very impressive one allowing an extinguisher to cover twice the floor area of a plain water jet extinguisher). Whilst the use of plain water spray is preferred for environmental reasons where there is no Class B risk a large number of extinguisher companies still install foam spray Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You are posting as a guest. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.