flashover

简明释义

英[ˈflæʃˌəʊvə(r)]美[ˈflæʃˌoʊvər]

n. [物] 闪络，[电] 飞弧；跳火

vi. 产生飞弧

英英释义

单词用法

同义词

反义词

例句

1.It acquires remarkable effect to preventing pollution flashover.

取得了较为显著的防污闪效果。

2.The flashover voltage of polluted composite insulators is decreased with increase of SDD and the fog conductivity in acid fog and salt fog.

污秽合成绝缘子在酸雾、盐雾中闪络电压随污秽程度的增大而降低，随雾水电导率的增加而降低。

3.A mathematical model is presented according to the mechanism of DC pollution flashover for computing DC pollution flashover voltage.

在现有污闪机理的基础上，提出一种能反映直流污闪基本特点，并计算绝缘子直流污闪电压的数学模型。

4.The flashover voltage of polluted composite insulators is decreased with increase of SDD and the fog conductivity in acid fog and salt fog.

污秽合成绝缘子在酸雾、盐雾中闪络电压随污秽程度的增大而降低，随雾水电导率的增加而降低。

5.Transmission line regelation may cause conductor galloping, pole leaning or collapse, conductor breaking or insulator flashover etc.

输电线路覆冰可引起导线舞动、杆塔倾斜、倒塌、断线及绝缘子闪络等问题。

6.The process and feature of flashover of hv power appliance under pollution is described.

介绍了高压电力设备外绝缘发生污秽闪络的过程和特点。

7.The reason of pollution flashover of transmission and distribution equipment has been analyzed in the paper .

通过分析论证，指出了输变电设备污闪的主要原因是外绝缘配置偏低。

8.The theory of vacuum flashover and the idea of design are briefly introduced.

简介了真空表面闪络机理，径向绝缘结构的设计思路。

9.Over-voltage protector can be greatly reduced near lightning flashover rates caused by induction voltage.

过电压保护器可以大大降低附近雷击感应电压导致的闪络率。

10.During the fire investigation, the team noted that a sudden flashover 闪燃 occurred, engulfing the entire room in flames.

在火灾调查中，团队注意到突然发生了闪燃，整个房间被火焰吞没。

11.Firefighters are trained to recognize the signs of an impending flashover 闪燃 to ensure their safety.

消防员接受培训以识别即将发生的闪燃的迹象，以确保他们的安全。

12.The rapid increase in temperature indicated that a flashover 闪燃 was about to occur.

温度的快速上升表明闪燃即将发生。

13.In residential fires, the risk of flashover 闪燃 can be significantly higher due to common household materials.

在住宅火灾中，由于常见的家庭材料，闪燃的风险可能显著增加。

14.Understanding the dynamics of flashover 闪燃 is crucial for effective fire prevention strategies.

理解闪燃的动态对于有效的火灾预防策略至关重要。

作文

Fire safety is a critical concern in both residential and commercial buildings. One of the most dangerous phenomena associated with fire is known as flashover, which occurs when a fire spreads rapidly through a room or area due to the ignition of combustible materials. Understanding flashover is essential for firefighters, building designers, and anyone involved in fire prevention. When a fire starts, it typically begins with a small flame that can grow larger if not controlled. As the temperature rises, the surrounding materials begin to heat up. The term flashover refers to the moment when the heat from the flames becomes intense enough to ignite all the combustible materials in the room simultaneously. This can happen in just a matter of minutes, transforming a manageable fire into a deadly inferno. The phenomenon of flashover is influenced by several factors, including the type of materials present, the layout of the room, and the availability of oxygen. For instance, rooms filled with synthetic materials, such as plastics and foams, are more prone to flashover than those with natural materials like wood. Additionally, an enclosed space with limited ventilation can create a dangerous environment where heat accumulates, increasing the likelihood of flashover. Firefighters must be aware of the signs indicating that flashover may occur. These signs include rapid increases in temperature, a thickening smoke layer, and the presence of a dark, rolling smoke that appears to be moving towards the ceiling. Recognizing these indicators can give firefighters precious moments to escape or adjust their tactics to prevent further escalation. Preventing flashover requires careful planning and design in buildings. Fire-resistant materials can slow down the spread of flames, while proper ventilation can help manage heat and smoke buildup. Additionally, fire suppression systems, such as sprinklers, can significantly reduce the risk of flashover by cooling the environment and extinguishing flames before they can spread. In conclusion, understanding flashover is crucial for anyone involved in fire safety. By recognizing the factors that contribute to this rapid spread of fire and implementing effective prevention strategies, we can protect lives and property from the devastating effects of fire. Education and awareness about flashover can empower individuals and organizations to take proactive measures in fire safety, ultimately reducing the risk of catastrophic events. In summary, flashover (火灾闪燃) is a significant hazard that can turn a small fire into a life-threatening situation in seconds. Awareness and preparedness are key in mitigating the dangers associated with flashover, ensuring that we can respond effectively to fires and minimize their impact on our lives and communities.

火灾安全在住宅和商业建筑中至关重要。与火灾相关的最危险现象之一被称为flashover（火灾闪燃），它发生在火灾因可燃材料的点燃而迅速蔓延至房间或区域时。理解flashover对于消防员、建筑设计师以及任何参与火灾预防的人来说都是必不可少的。 当火灾开始时，通常是从一个小火焰开始，如果不加以控制，它可能会变得更大。随着温度的升高，周围的材料开始升温。术语flashover指的是火焰的热量变得足够强烈，以至于能够同时点燃房间内所有可燃材料的那一刻。这可能在短短几分钟内发生，将一个可控的火灾转变为致命的火焰。 flashover现象受多种因素的影响，包括存在的材料类型、房间的布局以及氧气的可用性。例如，充满合成材料（如塑料和泡沫）的房间比那些使用天然材料（如木材）的房间更容易发生flashover。此外，通风有限的封闭空间可能会创造出一个危险的环境，使热量积聚，从而增加flashover的可能性。 消防员必须意识到表明可能发生flashover的迹象。这些迹象包括温度迅速升高、烟雾层变厚，以及出现黑暗的、滚动的烟雾，看起来向天花板移动。识别这些指标可以为消防员提供宝贵的逃生或调整战术的时间，以防止进一步升级。 防止flashover需要在建筑中进行仔细的规划和设计。防火材料可以减缓火焰的传播，而适当的通风可以帮助管理热量和烟雾的积聚。此外，灭火系统（如喷淋系统）可以通过冷却环境和在火焰扩散之前扑灭火焰，显著降低flashover的风险。 总之，理解flashover对任何参与火灾安全的人来说都至关重要。通过认识导致这种快速火灾蔓延的因素并实施有效的预防策略，我们可以保护生命和财产免受火灾的破坏性影响。关于flashover的教育和意识可以使个人和组织采取主动措施进行火灾安全，从而最终降低灾难性事件的风险。 总之，flashover（火灾闪燃）是一个重大危险，它可以在几秒钟内将小火灾转变为危及生命的情况。意识和准备是减轻与flashover相关的危险的关键，确保我们能够有效应对火灾并尽量减少其对我们生活和社区的影响。