建筑物的室外消火栓用水量和建筑物的耐火等级、使用性质、生产类别、建筑物的体积等有关。室外消防用水量应为室外消火栓和室外消防设备用水量之和,当一个单位室外同时设有泡沫设备、带架水枪、自动喷水灭火设备以及其他消防用水设备时,其消防用水量应按需要同时开启的设备所需全部消防用水量加上表2(上讲)规定的消火栓用水量的50 Outdoor fire hydrant water consumption and building fire rating, nature of use, production categories, the volume of buildings and so on. Outdoor fire water should be outdoor fire hydrant and outdoor fire fighting equipment and the amount of water, when an outdoor unit also has foam equipment, with water cannons, sprinkler equipment and other fire-fighting water equipment, the fire water consumption should be required At the same time open the equipment required for all fire fighting water plus Table 2 (above) the provisions of the fire hydrant water 50