国产精品无码久久无一区二区三区|一级做a免费视频观看网站|97久久精品久久88|欧美亚洲激情另类

Industry news
Application of rare fire fighting equipment
2020-10-06

How to use rare fire fighting equipment:

1 fire alarm staff manually press the manual fire alarm button, when a fire occurs, when the fire detector does not detect the fire. Press the manual alarm button for 3-5 seconds, and the fire alarm confirmation lamp on the manual alarm button will be on to give a speech on the fire signal.
2 fire hydrant find the fire hydrant close to the fire site, when the fire breaks out. Open the door of the fire hydrant box, take out the water hose, connect one end of the water hose to the fire hydrant outlet, and connect the other end with the water gun. Pull it around the fire site before opening the fire hydrant valve.
3 air foam extinguisher first pull out the safety pin, about 6 meters away from the extinguisher. Hold the open pressure handle in one hand, hold the spray gun in the other hand, hold the opening handle tightly, seal the fire extinguisher, and the air foam is ejected from the spray gun. After the foam is ejected, it is directed to extinguish and radiate violently.
4 carbon dioxide fire extinguisher the handle of portable fire extinguisher or the fire extinguisher is carried on the shoulder. Hurry to the fire site and put down the fire extinguisher about 5 meters away from the fire. One hand holds the handle at the root of the trumpet shaped nozzle and aims the nozzle at the flame. The other hand presses down on the handle, and carbon dioxide is emitted.
5 dry powder fire extinguisher makes the dry powder in the cylinder loose. First pull out the safety pin and turn the fire extinguisher upside down a few times before use. Hold the nozzle with one hand, press the handle with the other hand, and dry powder will be ejected from the nozzle.

务川| 武城县| 嘉禾县| 渑池县| 黄浦区| 工布江达县| 高雄市| 积石山| 沙河市| 新源县| 元阳县| 南安市| 汉寿县| 侯马市| 玉屏| 商丘市| 同德县| 醴陵市| 华池县| 洞口县| 舞阳县| 双流县| 上饶县| 兰溪市| 新竹市| 吴江市| 巴林左旗| 河西区| 美姑县| 二连浩特市| 铁岭县| 上栗县| 德昌县| 乌拉特前旗| 类乌齐县| 石台县| 成安县| 嘉禾县| 资阳市| 宁河县| 江华|