Greater Manchester Fire and Rescue service using the new Lance скачать в хорошем качестве

Greater Manchester Fire and Rescue service using the new Lance

A new tool - dubbed keyhole surgery for blazes - has been unveiled that allows fire crews to pierce through walls to fight infernos. The unique "ultra high pressure lance" was tested out in Manchester yesterday when two derelict houses were torched. The intention is that the tool will enable fire crews to fight blazes from outside buildings by piercing through walls with the lance and spraying water inside. The hole that it makes in a wall is just 2.1mm wide and the technique causes less water damage to a building that just dousing the outside with water Manchester is the first city in the country to use the equipment. The lance is being used in conjunction with thermal imaging which allows the source of the fire to be identified quickly and before anyone has to enter the building. Once the source has been identified, the lance can be used. The special nozzle is pressed against the property and water mixed with an abrasive compound is fired from the lance at very high pressure making a small hole which takes just a matter of seconds. The lance is able to get through wood, plastic, metal, glass, and stone cavity walls. This means water can then be pumped onto the source of the fire. The lance produces a fine mist at high pressure which can dramatically reduce the temperature of the fire from around 700 degrees Celsius to 85 degrees Celsius in 30 seconds. The mist then helps turn the smoke into steam which also helps to smother a fire. Fans, known as Ram Fans, are used then to force the smoke out of the building which also helps in reducing the temperature as well as improving visibility.