Re: [Fire self rescue] can save your life at a critical moment.
dry powder fire extinguisher:
(1), lift the fire extinguisher with the handle;
(two) pull out, pull out the insurance;
(three) sight, at the fire point above one point five meters (such as an electric fire, should be farther) to aim the fire point;
(four) press, press and hold the ejector, aim at the ignition point, and move horizontally, and encircling the dry powder to cover the fire point. The insurance starts for a long time. After the fire extinguisher is used once, the pressure is all disappeared in 30 minutes, and the powder will be installed from the new supercharger next time.
fire extinguisher to use attention: aluminum tank dry powder fire extinguisher for thirty years, every three years to change powder once (use immediately after the need for powder); iron tank service life of five years, every year to change powder. It is particularly noted that when the iron tank is used, the bottom can not be supported on the side, because the iron can rust easily and the dry powder is easy to caking when it is dampened. Once the caking, the dry powder can not be ejected from the spray exit. The huge pressure will be released from the bottom welding place (especially in the rust place), and the bottom of the hand will inevitably lead to the finger to fly.