under-purlin insulation

Insulation Life Models for Electrical and Thermal Aging under Continuous High Square Impulses Voltage

高压方波脉冲下的电热老化绝缘寿命模型

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The preliminary checkout and study have been made on performance of colloid powder polyphenylene grain thermal insulation mortar under moist heat condition using mensuration device of concrete temperature linear expansion coefficient.

同时，利用混凝土温度线膨胀系数测定仪对胶粉聚苯颗粒保温浆料在湿热状态下的性能进行了初步测试和研究。

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The Study of Transformer Insulation Testing under Working Voltage

运行电压下变压器绝缘监测的研究

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This article analyses the reasons of the failure under external pressure of inner press vessel that in cryogenic vacuum storage tank with powder insulation, and the protective measures ought to be adopted.

本文对真空粉末绝热低温液体贮槽内容器受外压失效的原因进行了探讨。制造过程中，在真空夹层充氮置换和气压试验时，要对内容器采取安全承受外压的保护措施。

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The destruction of the insulation layer is a tensile failure under the hydraulic fracturing process.

认为在水力压裂作业过程中，隔层的破坏是一种拉张破坏。

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