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GB/T 29627.2-2013聚芳酰胺纤维纸板试验机要求

作者：來源：发布日期： 2020.10.21

信息摘要：

GB/T 29627.2-2013聚芳酰胺纤维纸板试验机要求

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GB/T 29627.2-2013电气用聚芳酰胺纤维纸板第2部分：试验方法已经发布，将于2013-12-02起开始实施。

电气用聚芳酰胺纤维纸板试样方法，原来参照标准主要是GB/T5591.2-2002电气绝缘用柔软复合材料第2部分：试验方法，本次专门实施GB/T 29627.2-2013将对行业产生重要影响。

聚酰亞胺薄膜聚芳酰胺纖維紙柔軟複合材料是由聚酰亞胺薄膜、聚芳酰胺纖維紙（Nomex）粘合而成的高級電工絕緣材料。具有優異的耐熱性和很好的介電性能、機械性能，適用于H級電機、電器的槽、相間、匝間和襯墊絕緣。

GB/T5591.2-2002規定了此類材料的試驗方法，其機械性能測試中需要測試拉伸強度與伸長率、邊緣抗撕裂，使用拉力試驗機來完成試驗。標准要求試驗機精度不低于1級。

新的GB/T 29627.2-2013电气用聚芳酰胺纤维纸板第2部分：试验方法标准，将对该材料的试验方法提出更高要求，对试验机的相应要求也更严格，三思泰捷高精密电子拉力试验机将可完全满足新标要求。

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The Curate, of course, had heard nothing about the Clockwork man's other performances; he had scarcely heeded the hints thrown out about the possibility of movement in other dimensions. It seemed to him, in the uncertain light of their surroundings, that the Clockwork man's right arm gradually disappeared into space. There was no arm there at all. Afterwards, he remembered a brief moment when the arm had begun to grow vague and transparent; it was moving very rapidly, in some direction, neither up nor down, nor this way or that, but along some shadowy plane. Then it went into nothing, evaporated from view. And just as suddenly, it swung back into the plane of the curate's vision, and the hand at the end of it grasped a silk hat. Good fitting is often not so much a question of skill as of the standard which a workman has fixed in his mind, and to which all that he does will more or less conform. If this standard is one of exactness and precision, all that is performed, whether it be filing, turning, planing, or drawing, will come to this standard. This faculty of mind can be defined no further than to say that it is an aversion to whatever is imperfect, and a love for what [171] is exact and precise. There is no faculty which has so much to do with success in mechanical pursuits, nor is there any trait more susceptible of cultivation. Methodical exactness, reasoning, and persistence are the powers which lead to proficiency in engineering pursuits. I was the only civilian in that road, and the soldiers, with much curiosity, stared at me. Whenever I noticed an officer, I gave an elaborate military salute, and with such an air that the officers, although hesitating at first, did not fail to return the salute. The reformed system of education was to be not only moral and religious but also severely scientific. The place given to mathematics as the foundation of a right intellectual training is most remarkable, and shows how truly Plato apprehended the conditions under which knowledge is acquired and enlarged. Here, as in other respects, he is, more even than Aristotle, the precursor of Auguste Comte. He arranges the mathematical sciences, so far as they then existed, in their logical order; and his remarks on the most general ideas suggested by astronomy read like a divination of rational mechanics. That a recommendation of such studies should be put into the mouth of Socrates is a striking incongruity. The older Plato grew the farther he seems to have advanced from the humanist to the naturalistic point of view; and, had he been willing to confess it, Hippias and Prodicus were the teachers with whom he finally found himself most in sympathy. We are told that when his end began to approach, the dying philosopher was pressed to choose a successor in the headship of the School. 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