1) lightning strike rate
雷击率
1.
With the study on the lightning strike rate of 10 kV overhead transmission lines in urban districts of Jiangmen,China and based on the computational theory of annual lightning strike rate of overhead lines,the theoretical value and the actual value of the annual average lightning strike rate per kilometer are compared and analyzed.
以江门市区10kV架空线路雷击率为研究对象,以架空线路年雷击率计算理论为基础,对年均公里雷击率理论值与实际值进行比较分析。
2) lightning strike probability
雷击概率
1.
It is concluded that 1) all formulas dealing with the said protection rage at home and abroad are empirical formulas, for some key influencing factors can not be quantitated; 2) the difference of the protection range stipulated in various documents is the result of different permissible lightning strike probability; 3) absolutizing the protection.
分析了避雷针(线)的防雷保护原理和影响避雷针(线)保护范围的主要因素,认为:1)当今国内外所有避雷针(线)防雷保护范围的计算公式都是经验公式,这是因为影响着避雷针(线)防雷效应的主要因素无法定量;2)所谓避雷针(线)保护范围是相对于被保护物在此空间内遭受雷击的概率而言的,各种文献规定的保护范围不同,是因允许遭受雷击概率不同;3)不能把避雷针(线)保护范围"绝对化"。
3) lightning outage rate
雷击跳闸率
1.
For the transmission lines under operation,lightning outage rate can be converted through frequency of lightning outage and line distance.
架空输电线路雷击跳闸率是全面了解线路运行可靠性的一项重要指标。
2.
Basing on Generalized Integral method,completely reckoning in the tripout by induced lightning, the total lightning outage rate we have obtained.
一般而言,评价一条供电线路遭受雷电的主要技术指标是耐雷水平和雷击跳闸率。
4) lightning trip-out rate
雷击跳闸率
1.
Evaluation of lightning trip-out rates for Zhejiang Power Grid by using lightning location systems;
基于雷电定位系统的浙江电网线路雷击跳闸率评估
2.
There are two indexes to evaluate the power line performance on preventing lightning strikes: the one is the lightning trip-out rate,the other is the lightning withstand level of the power line.
衡量线路防雷性能优劣的重要指标有两个:一是线路雷击跳闸率;二是线路耐雷水平。
3.
According to these records,the causes of lightning flashover including shielding failure stroke and back-shielding failure stroke were analyzed and therefore shielding-failure stroke rate and lightning trip-out rate were obtained.
根据220 kV新杭线Ⅰ回路全线1962—1988年实测得到的716次雷击记录,分析了该线雷击闪络原因,求得了绕击率和雷击跳闸率;并根据雷击跳闸率的变化和雷电流在杆塔中的分流情况,说明改进防雷措施。
5) lightning flashover rate
雷击闪络率
1.
The calculation results of 4 polar layout of double circuit line show that except polarity configuration mode C lightning flashover rates with other three kinds of configuration modes are not more than 0.
双回线路4种极性排列方式的计算表明,除方式C外,其他3种方式的线路雷击闪络率≤0。
6) lightning-stroke trip-out rate
雷击跳闸率
1.
One of the main measure to reduce transmission line lightning-stroke trip-out rate is reducing impulse grounding resistance of line tower.
降低输电线路雷击跳闸率的主要措施之一是降低线路杆塔的冲击接地电阻,在高土壤电阻率地区,采用传统的方法难以使杆塔的冲击接地电阻满足要求。
补充资料：电导率(见电阻率)
电导率(见电阻率)
conductivity
d!日nd日O}已电导率(eonduetivity)见电阻率。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条