通常情况下，消防车通过软管灭火剂（水）到火灾现场。所以，软管的有效长度对于灭火非常重要。下面就来讲讲消火栓全软管的有效长度内容。

Usually, fire engines send fire extinguishing agents (water) to the fire scene through hoses. Therefore, the effective length of hose is very important for fire extinguishing. Now let's talk about the effective length of the whole hose of the fire hydrant.

在设计和施工过程中，软管的有效长度通常有两种选择，一种是20m，另一种是25m，以保持建筑物外观简洁，通常为25m，这可以减少消防栓数量，节省消防费用。

In the process of design and construction, there are usually two choices for the effective length of the hose, one is 20m, the other is 25m, to keep the appearance of the building simple, usually 25m, which can reduce the number of fire hydrants and save fire-fighting costs.

在进行设计和布置时，消防设计师通常在消防栓周围进行灭火工作。消火栓的半径为25m，是消防栓的有效保护区。然而，在实践中，该方法缺乏一些可操作性。

When designing and arranging, fire designers usually carry out fire fighting work around fire hydrants. The radius of the fire hydrant is 25m, which is an effective protection area for the fire hydrant. However, in practice, this method lacks some operability.

消防员必须从软管前部的消防栓上取下喷嘴，然后迅速跑到火上。这意味着软管的长度必须大于或等于消防员的距离。其次，当软管装满时，消防员会跑得更快，错过灭火的佳时间。

Firefighters must remove the nozzle from the fire hydrant in front of the hose and quickly run to the fire. This means that the length of the hose must be greater than or equal to the fireman's distance. Secondly, when the hose is full, firefighters will run faster and miss the good time to put out the fire.

另外，川消小编认为软管在工作过程中容易缠绕，减少了有效长度。例如，软管在被水填满后被拖到地上，与带枪的消防员的高度有一定的无效距离。

In addition, Chuanxiao Xiaobian believes that the hose is easy to wind during the working process, reducing the effective length. For example, the hose is dragged to the ground after being filled with water, which has a certain invalid distance from the height of the fireman with a gun.

在牵引过程中，软管将被其他物体挡住，从而绕过并进一步减少软管的有效长度。根据相关的防火数据，可以发现软管的有效长度乘以减小系数（0.8），即实际有效长度。换句话说，25m长的软管实际上只有20m长。

During towing, the hose will be blocked by other objects, so as to bypass and further reduce the effective length of the hose. According to the relevant fire prevention data, it can be found that the effective length of the hose multiplied by the reduction factor (0.8), that is, the actual effective length. In other words, a 25m long hose is actually only 20m long.

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