FIRE EXTINGUISHMENT As such factors

FIRE EXTINGUISHMENT
As such factors as heat, fuel, oxygen, and chain reaction are necessary for fire, it follows that the withdrawal of any of them will cause the fire to go out. So the theory of fire extinguishment is based on removing any one or more of the four elements in the fire tetrahedron to suppress the fire. Before attempting to extinguish a fire, the fireman must decide which of the factors he will try to remove Efforts directed at removing the fuel are sometimes called starvation; depriving the fire of oxygen is known as smothering or blanketing and reducing the temperature is known as cooling. It is often possible to use more than one method at the same time, in fact most means of extinguishment do so, although they are classified under the method on which they principally rely. Removal of Fuel. This method is applied by removing from the neighbourhood of the fire such combustible materials which can be removed It is often possible to transfer stock or other contents from the parts of a burning building to a safe place. When dealing with flammable liquid fires, valves can be shut off and storage vessels pumped to safe areas to help eliminate the supply of fuel to the fire. Flammable gas fires are completely extinguished by shutting off the fuel supply. These and similar actions may be of great value in reducing the potential damage, but they do not generally provide positive action against fire. Moreover, under many circumstances, it is not practical to attempt to remove the fuel from the fire. Smothering or cooling is usually more useful. Smothering or blanketing. This is an attempt to reduce the supply of oxygen necessary for the fire. A reduction of the proportion of oxygen in the atmosphere from the normal 21% to less than 15% will extinguish most fires, but in some cases the percentage of oxygen must be reduces as low as 0%. When the burning material, e.g. celluloid, includes in its chemical compositiOrt-sufficient oxygen for its combustion, smothering is, of course, ineffective,

Результаты (русский) 1:

ТУШЕНИЕ ПОЖАРА As such factors as heat, fuel, oxygen, and chain reaction are necessary for fire, it follows that the withdrawal of any of them will cause the fire to go out. So the theory of fire extinguishment is based on removing any one or more of the four elements in the fire tetrahedron to suppress the fire. Before attempting to extinguish a fire, the fireman must decide which of the factors he will try to remove Efforts directed at removing the fuel are sometimes called starvation; depriving the fire of oxygen is known as smothering or blanketing and reducing the temperature is known as cooling. It is often possible to use more than one method at the same time, in fact most means of extinguishment do so, although they are classified under the method on which they principally rely. Removal of Fuel. This method is applied by removing from the neighbourhood of the fire such combustible materials which can be removed It is often possible to transfer stock or other contents from the parts of a burning building to a safe place. When dealing with flammable liquid fires, valves can be shut off and storage vessels pumped to safe areas to help eliminate the supply of fuel to the fire. Flammable gas fires are completely extinguished by shutting off the fuel supply. These and similar actions may be of great value in reducing the potential damage, but they do not generally provide positive action against fire. Moreover, under many circumstances, it is not practical to attempt to remove the fuel from the fire. Smothering or cooling is usually more useful. Smothering or blanketing. This is an attempt to reduce the supply of oxygen necessary for the fire. A reduction of the proportion of oxygen in the atmosphere from the normal 21% to less than 15% will extinguish most fires, but in some cases the percentage of oxygen must be reduces as low as 0%. When the burning material, e.g. celluloid, includes in its chemical compositiOrt-sufficient oxygen for its combustion, smothering is, of course, ineffective,

Результаты (русский) 3:

тушение пожаракак такие факторы, как жара, топливо, кислород, и цепная реакция, необходимы для пожарных, из этого следует, что выход любой из них может вызвать огонь на улицу.так что теория пожара тушение основывается на устранение одного или более из четырех элементов, в огне тетраэдр, для тушения пожара.прежде чем пытаться затушить пожар, пожарные должны решить, какие факторы, он будет пытаться удалить усилий, направленных на устранение топливо иногда называют голода; лишение огонь кислорода известен как удушение или подушки и снижения температуры известен как охлаждение.часто можно использовать более чем одного метода в то же время, в действительности большинство средств прекращения этого, хотя они классифицируются по методу, на которых они главным образом полагаться.вывоз топлива.этот метод применяется, удалив из района огонь таких горючих материалов, которые могут быть удалены часто можно передавать акции или другие содержание из частей горящего дома в безопасное место.при работе с горючей жидкостью пожаров, клапаны, можно отключить и складских резервуаров закачивается в безопасных районах в целях ликвидации поставок топлива в огонь.воспламеняющийся газ пожаров полностью погасить отключение поставок топлива.эти и аналогичные меры, может иметь огромное значение для снижения потенциального ущерба, но они, как правило, не дает положительных действий по борьбе с пожарами.кроме того, во многих случаях нецелесообразно пытаться удалить топлива из огня.удушение или охлаждение обычно более полезным.удушение или подушки.это попытка сократить запас кислорода, необходимого для огня.сокращение доли кислорода в атмосфере от обычного на 21% до менее 15% будет погасить большинство пожаров, но в некоторых случаях процент кислорода, должно быть, снижает уровень 0%.когда горит материала, например, целлулоид, включает в свои химические compositiort достаточно кислорода для его сжигания, удушение, конечно, неэффективными,