Flame-retardant fire-resistant power cable containing ceramizable material
A ceramic material, flame retardant and fire-resistant technology, applied in the direction of power cables, insulated cables, cables with shielding/conducting layers, etc., can solve the problem of limited application range of mica tape, plastic thermal insulation performance, and fire-blocking performance is not special. good question
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Embodiment 1
[0015] see figure 1 , the flame-retardant and fire-resistant power cable containing ceramizable materials shown in the figure is a single-core flame-retardant and fire-resistant power cable, which includes a core wire, a first fire-blocking and heat-insulating layer 20 wrapped outside the core wire, and a The second fire and heat insulation layer 30 outside the first fire and heat insulation layer 20, the armor layer 40 wrapped outside the second fire and heat insulation layer 30, and the outer sheath 50 wrapped outside the armor layer 40 .
[0016] The core wire is a single core wire, and the single core wire includes a conductor 10 , an insulating three-layer co-extruded layer 60 covering the conductor 10 and a metal shielding layer 70 covering the insulating three-layer co-extruded layer 60 .
[0017] The feature of this embodiment is that the first fire-stopping and heat-insulating layer 20 and the second fire-stopping and heat-insulating layer 30 are formed by extruding,...
Embodiment 2
[0019] see figure 2 , the flame-retardant and fire-resistant power cable containing ceramizable materials shown in the figure is a multi-core flame-retardant and fire-resistant power cable, which includes a core wire, a first fire-blocking and heat-insulating layer 20 wrapped outside the core wire, and a The second fire and heat insulation layer 30 outside the first fire and heat insulation layer 20, the armor layer 40 wrapped outside the second fire and heat insulation layer 30, and the outer sheath 50 wrapped outside the armor layer 40 .
[0020] The core wire is twisted by three single core wires (certainly not limited to three). The metal shielding layer 70 outside the co-extrusion layer 60 . A filling layer 80 is filled between the core wire and the first fire-stopping and heat-insulating layer 20 .
[0021] The characteristic of this embodiment is that the first fire-stopping and heat-insulating layer 20 and the second fire-stopping and heat-insulating layer 30 are f...
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