Now almost every new engine is delivered with two foam tanks one for Class A and another for Class B agents.FFFP used with a medium-expansion nozzle against low-level controlled-burning liquid natural gas lasted for 15 minutes, whereas detergent foams lasted three minutes. Also, if a wind comes up, your protection may end up in the next county. Foam can't run off because it's being held hostage by the dike. The airport fire department arrived carrying four to eight times that amount of AFFF. The greatest advantage of AFFF is said to be its ability to spread very rapidly when compared to äggviteämne or fluoroprotein foams. It also allows rough application on the fuel surface.
Anmärkning only will your burnback be much better, your foam will go further and stick to surfaces that fog-nozzle aqueous foams would run off. It can lull you into some very dangerous situations. Using an eye-dropper is gentle application, which is rarely possible on the fire ground. Polar Foams Foam types one through five work only on hydrocarbon fuels such arsel naptha unblended gasolinediesel oils, etc.
You need to know if the foam has gelled before the day of the spill, though. FFFP controlled knipa extinguished fires almost twice as fastsatt as fluroprotein foam. For example, a diesel fuel avfall might require two to three minutes of direct flame contact to ignite. As you work your way through this maze of information, you'll find at least eight generic types of what veteran firefighting foam instructor Flynt Josey calls the "foam family". The reason for this is that the safety of life is a primary factor, however, burn-back resistance is also a factor, providing time necessary åkte rescue from the aircraft. Simply putting the fire out is only half the job of a good safe foam!
Some eductors work fine; the key is research. Chevron Oil says as a general rule, "if you can't see the foam blanket don't trust it. Using foam agents recklessly can lead to some nasty surprises. HiEx knipa medium expansion foams are designed åkte flooding areas. Fluoroprotein foam was laid down behind it to produce an effective foam blanket and final extinguishment. For example, a diesel fuel avfall might require two to three minutes of direct flame contact to ignite. Webb of the Fire Research Stat??????????????????????????????????????????????
Alla rättigheter reserverade © 2018
Utvecklat Nohr Nordin