It was quickly found that, to be effective, the compound would need to maintain its dimensions when exposed to high temperatures; if it swelled or shrank, cracks would form and expose the conductor. Thus all the organic parts needed to be converted from solid to gas, significantly reducing the density of the remainder, which was required to form an inorganic network during the solid-to-gas conversion. The final ceramic material had to be insulating, strong, and dimensionally stable at temperatures exceeding 1,000°C. Following 10 years of development this was achieved (Figure 10), and the material, currently protected by patents, is marketed as Alsecure premium with INFIT™ technology [9]. In the future we expect to see growth in the demand for fire-performance cables because of the need for buildings with greater environmental protection.
It was quickly found that, to be effective, the compound would need to maintain its dimensions when exposed to high temperatures; if it swelled or shrank, cracks would form and expose the conductor. Thus all the organic parts needed to be converted from solid to gas, significantly reducing the density of the remainder, which was required to form an inorganic network during the solid-to-gas conversion. The final ceramic material had to be insulating, strong, and dimensionally stable at temperatures exceeding 1,000°C. Following 10 years of development this was achieved (Figure 10), and the material, currently protected by patents, is marketed as Alsecure premium with INFIT™ technology [9]. In the future we expect to see growth in the demand for fire-performance cables because of the need for buildings with greater environmental protection.
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