protection distance

The paper firstly elaborates on the calculation principles of the main line system capacity analysis, including the calculation of interval train track, safety braking distance, safety protection distance, safety distance, train average travel speed and so on.

然后详细阐述了正线系统能力分析的计算原理，包括列车追踪间隔的计算，安全制动距离、安全保护距离及安全距离的计算以及列车平均旅行速度、全周转时间和运用车配车数的计算。

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For the influence of line resistance on effective protection distance of SPD under different load conditions, the analytical solutions of load voltages are given.

关于线路电阻对SPD保护范围的影响，计算给出了考虑线路电阻时的负荷电压解析解，分析了各种负荷情况下，线路电阻对保护范围的影响，并给出了量化分析公式。

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Efficient Protection Distance and Area of Farmland Protective Forest in Karamay

克拉玛依农田防护林带的有效防护距离与面积研究

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The floor roadway should be located out of the abutment stress zone when protection coal pillar is retained, or the working face should be pushed away for enough distance under overhead mining.

留设保护煤柱时，底板岩巷应位于集中应力区的外侧或跨采时工作面应推过足够距离，使巷道靠近采空区应力恢复区的下方。

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The most common form of protection on high voltage transmission systems is distance relay protection.

在高压传输系统中,应用最多的是距离保护.

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The protection extent and defects of impedance protection for transformer is analyzed by this article, and it is pointed that distance protection for power line cannot be applied to the backup protection for main transformer at another terminal on the same line.

针对变压器阻抗保护的保护范围进行分析，指出了变压器阻抗保护的缺陷，同时指出线路距离保护不能作为对侧主变压器的后备保护。

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The National Training Plan-Jiangxi Province rural K12 key teachers network distance training is the Ministry of Education to strengthen the building of central and western rural K12 teachers an important measure. The construction of network distance platform is the effective training protection.

国培计划&江西省农村中小学骨干教师网络远程培训是教育部为加强中西部农村中小学师资队伍建设的重大举措，教师远程研修平台建设是有效培训的保障。

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The effects of soil resistivity, polarization characteristic of tank bottom, depth of anode, distance between anode and tank on cathodic protection potential distribution of tank bottom are studied.

研究了土壤电阻率、罐底的极化特性、阳极的埋深、与罐距离及数量等因素对罐底外侧阴极保护电位分布的影响，并将模拟结果与实测数据进行了对比。

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Analysis of Error Action of Ground Distance Protection of LFP System in Anti Faults

LFP系列接地距离保护反向故障误动分析

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For Shanghai power grid, which has large short circuit capacity and short electrical distance, a method using imported instrument to test power frequency variation distance protection is presented.

结合上海电网具有短路容量大、电气距离短的特点，提出了使用进口仪器测试工频变化量距离保护的具体方法。

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This criterion has a non-linear relation with measured admittance distance protection has higher sensitivity and reliability.

该动作判断量与测量导纳成非线性变化关系,使保护的动作灵敏度及动作可靠性有所提高.

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In the design of a plot plan for a chemical plant, it is necessary to meet the requirements like process, fire protection distance as well as environmental protection.

在石油化工厂总图设计中，不仅要考虑满足工艺流程和防火间距，还要对工厂的建筑空间和环境设计给予充分的重视。

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Fire Protection Distance is a basic controls parameter to auditing fire protection design of building, and an important factor to prevent fire.

防火间距是建筑防火设计审核的基本控制参数，也是进行防火检查的重点问题。

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standard for protection distance from highway to am. fm and tv rebroadcasting stations

调幅收音台和调频电视转播台与公路的防护间距标准

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