英语翻译Fuse protection – Easy and reliableThe fuse is a superio

英语翻译
Fuse protection – Easy and reliable
The fuse is a superior short circuit protection element regarding the maximum allowed cut-off current (peak let through current) and energy value.This is more important the higher the voltage and prospective fault
levels are.The FastLine switch fuses fulfil the highest requirements for modern switch fuses with a total safety concept.The switch fuses are tested according to the EN 60947-3 standard with more stringent requirements for isolation,making,performance and safety.The fuse rails are tested according to IEC 60269-2-1.The melting curves
and current limiting diagrams for NH fuse links are given in the IEC 269-2 standard.The standardised fuse characteristics and high degree of current limitation ensure that there is a simple and effective co-ordination with fuse links and other devices.Fuse links provide a simple procedure for selecting the right fuse type for your installation,without complicated calculations or calculation tools.Fuses prevent “blackouts”.Only the fuse nearest a fault trips without upstreams fuses (feeders or mins) being affected.Fuses thus
provide selective coordination.When more power is needed in an installation,more feeders can be added without changing the present structure or any new selectivity calculations.Fuse links will assure selectivity in the installation by 1,6:1 difference in the rated current.
Economical installation
Lifetime costs of fuse systems are low.Fuse links which can withstand a high fault level and a fault current,are available at economical prices.After fuse operation,only the fuse link has to be changed.Because the fuse links can be rapidly and easily replaced,plant down time and maintenance are substantially reduced with a fuse link system.Because the fusing elements operate in a cylinder,they are not affected by their surroundings.Thus their protecting characteristics remain stable year after year.The dynamic stress on the network and its
equipment is dependent of the let through energy (i2t) at a short circuit.The fuse link provides the best protection compared to other solutions,at high short circuit currents.As the fuse link body is filled with quartz sand,there will be no emission of gases or arcs when a short circuit occurs.This again leads to less stress on the network and a higher degree of personal safety.

Fuse protection – Easy and reliable
The fuse is a superior short circuit protection element regarding the maximum allowed cut-off current (peak let through current) and energy value. This is more important the higher the voltage and prospective fault levels are. The FastLine switch fuses fulfil the highest requirements for modern switch fuses with a total safety concept. The switch fuses are tested according to the EN 60947-3 standard with more stringent requirements for isolation, making, performance and safety. The fuse rails are tested according to IEC 60269-2-1.
熔断保护 – 简单和可靠
熔断器是应对短路的一种良好保护元件,它涉及允许的最大截止电流（瞬间通过的电流峰值）和能量值.当设备的电压和故障率较高时,其重要性尤为显著.针对力求全面安全概念的现代化开关熔断器,FastLine牌开关熔断器可以满足其最高达要求.该熔断器已通过对绝缘、通电、性能和安全具有更严格要求的欧洲标准EN 60947-3；测试熔断器的导轨则是根据IEC 60169-2-1标准（注：此标准针对工业用途的低压熔断器）.

The melting curves and current limiting diagrams for NH fuse links are given in the IEC 269-2 standard. The standardised fuse characteristics and high degree of current limitation ensure that there is a simple and effective co-ordination with fuse links and other devices. Fuse links provide a simple procedure for selecting the right fuse type for your installation, without complicated calculations or calculation tools. Fuses prevent “blackouts”. Only the fuse nearest a fault trips without upstreams fuses (feeders or mins) being affected. Fuses thus provide selective coordination. When more power is needed in an installation, more feeders can be added without changing the present structure or any new selectivity calculations. Fuse links will assure selectivity in the installation by 1,6:1 difference in the rated current.
在此提供的的NH保险丝的熔化曲线和电流限制图是以IEC 269-2标准为依据（注：IEC 269标准不存在,请明察）.熔断器的标准化特性和高度的限流能力确保了与保险丝和其它装置之间的简单和有效的协同配合.无需使用复杂的计算或计算工具,保险丝就能以简单步骤为您设备选择合适的熔断器.熔断器可以防止‘断电’；受影响的只是靠近故障跳闸处的熔断器,上游的熔断器（馈线）则不受影响.因此,熔断器提供有选择性的协配.当某个设备需要更多电力时,只需要增加馈线的数量而不需改变当前结构或进行任何新的选择计算.将保险丝的额定电流差值限定在1.6:1,就可保证设备的选择性.

Economical installation
Lifetime costs of fuse systems are low. Fuse links which can withstand a high fault level and a fault current, are available at economical prices. After fuse operation, only the fuse link has to be changed. Because the fuse links can be rapidly and easily replaced, plant down time and maintenance are substantially reduced with a fuse link system. Because the fusing elements operate in a cylinder, they are not affected by their surroundings. Thus their protecting characteristics remain stable year after year.
经济型安装
熔断器系统的使用成本很低.市场上能够承受高故障率和故障电流的熔断器价格不是很贵.熔断器处理过后,只需更换保险丝.由于保险丝的更换快速简单,所以保险丝系统可以降低工厂的停产时间和维护成本.熔断原件是在封闭的圆管里操作,不受外界的影响,所以其防护特性可以长时期地保持稳定.

The dynamic stress on the network and its equipment is dependent of the let through energy (i2t) at a short circuit. The fuse link provides the best protection compared to other solutions, at high short circuit currents. As the fuse link body is filled with quartz sand, there will be no emission of gases or arcs when a short circuit occurs. This again leads to less stress on the network and a higher degree of personal safety
短路时通过的电能 (i2t) 决定电路网络及设备的动态应力.与其他解决方案比较,熔断器是最佳的防护短路强电流的选择.鉴于熔断体内充满石英砂,发生短路时不会释放出气体或电弧.这也降低对整个电路网络的压力,高度保证了个人的安全.

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