Formerly the arc length error for the insulation resistance instrument is defined by scale arc length. At present national standard determines that the percentage of indicated value expresses it.

绝缘电阻表以前是按标度尺弧长定义的弧长误差，现行国家标准规定以指示值的百分数表示。

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The wall corner or window model fire test, is a full scale test, can be imitating actual fire status and assessing the ability of external insulation systems to resist external fire.

墙角火试验和窗口火试验，能够充分反映外保温体系在实际火灾中的整体抗火能力。

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The cases of aging and fault for row insulation of large scale machine take place often, the equivalent and practice method are used to dispose the row insulation respectively.

针对大型电机排间绝缘可能发生的绝缘老化或故障情况，分别采用了等效和实际处理的方法对其进行了分析。

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