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首页> 外文期刊>IEEE Transactions on Energy Conversion >Fire protection wrapped cable tray ampacity
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Fire protection wrapped cable tray ampacity

机译:防火包裹电缆槽载流量

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摘要

A method is presented for calculation of ampacity of cable in fire protection wrapped cable trays. A brief description of the model is presented. The iterative technique used for solution of the model's simultaneous transcendental equations is presented with a description of the computer program. Cable derating for several typical installations is given and a graph is developed for use with ICEA P-55-440. To use the graph, the only data needed are the wrap thickness-to-conductivity ratio and emissivity. Ampacity derating derived from the model is also compared with published test results for two different fire wrap systems.
机译:提出了一种计算防火包裹电缆桥架中电缆载流量的方法。介绍了该模型的简要说明。通过计算机程序的描述,介绍了用于求解模型同时超越方程的迭代技术。给出了几种典型安装的电缆降额,并绘制了图表供ICEA P-55-440使用。要使用该图,唯一需要的数据是包装纸的厚度与电导率之比和发射率。还将模型得出的载流量降低与已发布的两种不同防火包装系统的测试结果进行了比较。

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