Novel impact-resistant and water-spray-resistant fire-resistant cable

Abstract

The utility model relates to an impact-resistant and water-spray-resistant fire-resistant cable. The fireproof cable comprises a plurality of insulated wire cores, each insulated wire core comprises a plurality of conductors, each conductor is coated with a plurality of first mineral heat-insulating layers, and each first mineral heat-insulating layer is externally extruded with an insulating layer to form the corresponding insulated wire core; a glass fiber wrapping tape I is wrapped outside the plurality of insulated wire cores to form a cable core, and flame-retardant fillers are arranged among the plurality of insulated wire cores; the cable core is longitudinally wrapped by a second mineral heat insulation layer, the second mineral heat insulation layer is wrapped by a second glass fiber wrapping tape, and the second glass fiber wrapping tape is wrapped by an outer sheath in an extruded mode. According to the utility model, the non-combustible ceramic mica tape is adopted, and the heat insulation layer rapidly crusts into a hard ceramic heat insulation layer when encountering fire, so that the heat insulation layer is firmly fixed, the cable core is effectively protected for a long time, and the cable can stably work for a long time.

Description

TECHNICAL FIELD

[0001] The utility model relates to a fireproof cable, especially to a fireproof cable of impact resistance and water spray resistance. BACKGROUND

[0002] Most of the common fireproof cables use fireproof mica tape to block fire, but the common fireproof mica tape is hard, easy to burst after burning, and becomes powder, which falls from the cable core, and if shaken, the common mica tape falls from the cable core more quickly, and if sprayed, the layer-by-layer falling mica tape cannot protect the cable core from short circuit caused by spray. SUMMARY

[0003] The utility model discloses a novel fireproof cable of impact resistance and water spray resistance to solve the problems in the prior art.

[0004] The utility model discloses a novel fireproof cable of impact resistance and water spray resistance, the fireproof cable of impact resistance and water spray resistance, fireproof cable includes a plurality of insulated wire core, insulated wire core includes a plurality of conductor, the conductor is covered with multilayer mineral heat insulation layer one, and the mineral heat insulation layer one is extruded and covered with insulation layer and constitutes insulated wire core.

[0005] A plurality of insulated wire cores are wrapped with glass fiber wrapping tape one to form a cable core, and fire-retardant filling is arranged between the plurality of insulated wire cores.

[0006] The cable core is longitudinally wrapped with mineral heat insulation layer two, the mineral heat insulation layer two is wrapped with glass fiber wrapping tape two, and the glass fiber wrapping tape two is extruded and covered with an outer sheath.

[0007] Preferably, the mineral heat insulation layer one and the mineral heat insulation layer two are non-combustible ceramicized mica tapes.

[0008] The utility model discloses the non-combustible ceramicized mica tape, the heat insulation layer meets the fire and forms the hard ceramic heat insulation layer quickly, firmly fixes the heat insulation layer, forms the long-term effective protection to the cable core, and makes the cable can work stably for a long time. BRIEF DESCRIPTION OF DRAWINGS

[0009] Figure 1 It is the structure schematic diagram of the utility model.

[0010] In the figure, 1 is a conductor, 2 is a mineral heat insulation layer one, 3 is an insulation layer, 4 is fire-retardant filling, 5 is glass fiber wrapping tape one, 6 is a mineral heat insulation layer two, 7 is glass fiber wrapping tape two, and 8 is an outer sheath. DETAILED DESCRIPTION

[0011] The novel impact and water jet resistant fire resistant cable comprises a plurality of insulated cores, the insulated core comprises a plurality of conductors 1, the conductors 1 are coated with a plurality of mineral heat insulation layers 2, the mineral heat insulation layers 2 are coated with an insulation layer 3 to form the insulated core;

[0012] The plurality of insulated cores are coated with a glass fiber wrapping tape 5 to form a cable core, and a fire-retardant filler 4 is arranged between the plurality of insulated cores;

[0013] The cable core is longitudinally coated with a mineral heat insulation layer 6, the mineral heat insulation layer 6 is coated with a glass fiber wrapping tape 7, and the glass fiber wrapping tape 7 is coated with an outer sheath 8.

[0014] The mineral heat insulation layer 1 and the mineral heat insulation layer 6 are non-combustible ceramicized mica tapes.

[0015] In the non-combustible ceramicized mica tape, after longitudinal coating, a closed and continuous tubular shape is formed, and when high temperature and fire occur, the non-combustible ceramicized mica tape is burned into a closed, sealed and hard ceramic tube. Due to its softness and non-combustibility, the tubular shape after longitudinal coating will not be burned and broken into loose pieces. The continuous and hard ceramic tube formed by the non-combustible ceramicized mica tape is burned into an integral whole, and a complete, continuous and sealed protective shell is formed. Therefore, it is more tightly sealed and will not be broken and loose, and the residual material of the non-combustible ceramicized mica tape after burning is pure inorganic matter, and the insulation performance is very excellent. Therefore, it can play a good insulation protection role. The stability of the cable is improved, and the voltage resistance level and service life are also greatly improved.

[0016] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A novel impact and water jet resistant fire resistant cable, characterized in that: The fire-resistant cable comprises a plurality of insulated cores, the insulated core comprises a plurality of conductors (1), the conductor (1) is coated with a mineral heat insulation layer one (2), the mineral heat insulation layer one (2) is coated with an insulation layer (3) to form the insulated core; The plurality of insulated cores are wound with a glass fiber wrapping tape one (5) to form a cable core, and the plurality of insulated cores are provided with a fire-retardant filler (4) therebetween; The cable core is longitudinally coated with a mineral heat insulation layer two (6), the mineral heat insulation layer two (6) is wound with a glass fiber wrapping tape two (7), and the glass fiber wrapping tape two (7) is coated with an outer sheath (8).

2. The novel impact and water jet resistant fire resistant cable as claimed in claim 1, wherein: The mineral heat insulation layer one (2) and the mineral heat insulation layer two (6) are non-combustible ceramicized mica tapes.

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