一种低烟无卤阻燃耐火抗挤压电力电缆

Abstract

本实用新型公开了一种低烟无卤阻燃耐火抗挤压电力电缆，其包括缆芯单元、定型组件、抗击压条、缓冲层以及抗压层，缆芯单元具有多个，抗挤压条内开设有贯穿抗击压条的相对两端的挤压腔，缓冲层设置在定型组件的外部，抗压层设置缓冲层的外部，定型组件包括芯杆、分隔板以及固定套，芯杆设置在所述缆芯单元的中间位置处，分隔板设置在相邻的两个缆芯单元之间，固定套设置在多个缆芯单元的外部，抗挤压条位于缆芯单元与固定套之间，每个分隔板内均设置有多个加强筋。本实用新型的低烟无卤阻燃耐火抗挤压电力电缆，在受到外部压力时，压力依次经过抗压层和缓冲层，外部压力逐渐被缓冲，然后在外部压力经过抗击压条后，能够对外部压力进一步缓冲。

Claims

1. A low smoke, halogen-free, flame retardant, fire resistant, and crush resistant power cable, characterized in that: The low-smoke halogen-free flame-retardant fire-resistant and compression-resistant power cable includes a core unit, a shaping component, an anti-compression strip, a buffer layer, and a compression-resistant layer. Multiple core units are included. The shaping component is disposed outside the multiple core units. The anti-compression strip is disposed inside the shaping component, and an extrusion cavity is formed within the anti-compression strip, penetrating both ends of the strip. The buffer layer is disposed outside the shaping component, and the compression-resistant layer is disposed outside the buffer layer. The shaping component includes a core rod, a partition plate, and a fixing sleeve. The core rod is disposed at the middle position of the multiple core units. The partition plate is disposed between two adjacent core units. The fixing sleeve is disposed outside the multiple core units and is fixedly connected to the partition plate. The anti-compression strip is located between the core unit and the fixing sleeve. Each partition plate has multiple reinforcing ribs.

2. A low smoke, zero halogen, flame retardant, fire resistant, crush resistant power cable according to Claim 1, wherein: An armor layer is provided between the shaping component and the buffer layer. The armor layer covers the outside of the shaping component, and the buffer layer covers the outside of the armor layer.

3. A low smoke, zero halogen, flame retardant, fire resistant, and crush resistant power cable as set forth in Claim 1, wherein: A waterproof layer and a fire-resistant layer are provided between the buffer layer and the pressure-resistant layer. The waterproof layer is wrapped around the outside of the buffer layer, the fire-resistant layer is wrapped around the outside of the waterproof layer, and the pressure-resistant layer is wrapped around the outside of the fire-resistant layer.

4. The low-smoke halogen-free flame-retardant fire-resistant and extrusion-resistant power cable as described in claim 1, characterized in that: The compressive layer is further wrapped with an outer protective layer.

5. A low smoke, zero halogen, flame retardant, fire resistant, crush resistant power cable according to Claim 4, wherein: The cable core unit includes a cable core and an insulation layer, the insulation layer being wrapped around the outside of the cable core.

6. A low smoke, zero halogen, flame retardant, fire resistant, crush resistant power cable according to Claim 4, wherein: The cable core unit has six units.

7. The low-smoke halogen-free flame-retardant fire-resistant and extrusion-resistant power cable as described in claim 1, characterized in that: The anti-compression strip is made of rubber with elastic properties.

8. A low smoke, zero halogen, flame retardant, fire resistant, and crush resistant power cable as set forth in Claim 1, wherein: The shaping component is made of halogen-free, low-smoke, flame-retardant polyolefin insulation material irradiated at 125°C.

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