The actual class of fire resistance of glazed partitions can only be determined according to a test, which meets the normative requirements. The test standards in this field determine the minimum dimensions of the test specimens (2800 × 3000 mm, width × height, in the clear opening of the furnace), on which the test should be carried out. The testing of elements with the minimum dimensions allowed by the test standard, assess the fire resistance of components with slightly larger dimensions. This, however, does not solve the real problem, which is the use of glazed partitions with fire resistance, significantly exceeding the dimensions of the sample walls verified by the tests. The aim of the research described in this article was to verify the influence of the height of glazed partitions on their fire resistance. The results of six tests of partitions with different height (from 3 up to 6 m) and the same width (3 m), made on the basis of the same glazing and the same aluminium profiles have been compared. During the fire resistance tests, the performance criteria of integrity and insulation were verified. Additionally, the deflection of the partition was measured in specific places by means of laser and draw wire sensors. Based on the presented test results, it can be argued that the height of the partition does not have a significant impact on its insulation and integrity, provided that the size of the glass panes is not increased along with the wall height, that the structure of the element is symmetrical in relation to the central vertical axis and, most importantly, that the mullions are properly stiffened.

中文翻译：

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铝釉隔断的耐火性取决于其高度

玻璃隔断的实际耐火等级只能根据符合规范要求的试验确定。本领域的试验标准确定了应在其上进行试验的试样的最小尺寸（2800×3000mm，宽×高，在炉膛的透明开口中）。测试标准允许的最小尺寸元件的测试，评估尺寸稍大的元件的耐火性。然而，这并没有解决真正的问题，即使用具有耐火性的玻璃隔板，大大超过了经测试验证的样品墙的尺寸。本文所述研究的目的是验证玻璃隔断高度对其耐火性的影响。比较了基于相同玻璃和相同铝型材制作的不同高度（从 3 到 6 m）和相同宽度（3 m）的隔板的六次测试结果。在耐火测试期间，验证了完整性和绝缘性的性能标准。此外，隔板的挠度是通过激光和拉线传感器在特定位置测量的。根据所提供的测试结果，可以认为隔墙的高度对其绝缘性和完整性没有显着影响，前提是玻璃板的尺寸不随墙高而增加，该元素相对于中心垂直轴对称，最重要的是，竖框得到了适当的加强。