火灾是一种失去控制的燃烧过程,它可以伤害人的生命、毁坏财产、秧及人类生存环境。火灾有原发性和次生性两种表现形式。一般地说次生火灾可以因地震、风和战争等其它灾害引发而成。从宏观上看,火灾是不可避免的,即它将会伴随着火的存在而存在。但火灾又是可以防治的,即依靠现代科学技术对火灾的发生概率、规模加以预测和有效地控制。 一、火灾的危害 火灾可分为“大自然火灾”和“建造物火灾”两大类。所谓大自然火灾是指在森林、草场等自然区发生的火灾。这类火灾的起因有两种,一种是由大自然的 A fire is an uncontrolled combustion process. It can injure human lives, destroy property, and damage the environment in which people live. Fires have both primary and secondary manifestations. In general, secondary fires can be caused by other disasters such as earthquakes, winds, and wars. From a macro perspective, fire is inevitable, that is, it will exist with the existence of fire. However, the fire can be controlled again, that is, relying on modern science and technology to predict the probability and scale of the fire, and effectively control it. First, the fire hazard Fire can be divided into “natural fire” and “structural fire” two broad categories. The so-called “natural fire” refers to fires that occur in natural areas such as forests and pastures. There are two kinds of causes of such fires, one of which is caused by nature.