CN209880216U - High-strength moisture-proof fireproof power cable - Google Patents

High-strength moisture-proof fireproof power cable Download PDF

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Publication number
CN209880216U
CN209880216U CN201920581202.8U CN201920581202U CN209880216U CN 209880216 U CN209880216 U CN 209880216U CN 201920581202 U CN201920581202 U CN 201920581202U CN 209880216 U CN209880216 U CN 209880216U
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China
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layer
cable
power cable
core
fireproof
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CN201920581202.8U
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Chinese (zh)
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陈嘉濠
杨伟国
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Kunming Double Ring Power Cable Co Ltd
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Kunming Double Ring Power Cable Co Ltd
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Abstract

The utility model discloses a dampproofing fire prevention power cable excels in, including cable core and flame retardant coating, its characterized in that: the quantity that the cable core set up is 3, the cable core is provided with between two liang and strengthens the core, the axis department of flame retardant coating is provided with the cavity spacer tube, the inner chamber packing that the cavity spacer tube has tensile to restraint, be provided with the packing strip between cable core, flame retardant coating, cavity spacer tube and the enhancement core, the surface coating of flame retardant coating has the buckler, the outside of buckler is provided with the armor, the outside parcel of armor has outer tegillum, outer tegillum adopts zero halogen low smoke insulation material to make, the utility model relates to a power cable technical field. This dampproofing fire prevention power cable excels in has very high tensile strength and pliability, and the conductor of avoiding that can be fine and cable insulation layer atress damage have good humidity resistance simultaneously, life and the stability that can effectual increase cable.

Description

High-strength moisture-proof fireproof power cable
Technical Field
The utility model relates to a power cable technical field specifically is a dampproofing fire prevention power cable excels in.
Background
With the development of society and the progress of science and technology, a plurality of power plants, metallurgical enterprises and petroleum enterprises develop towards large-scale integration, high-rise buildings, public entertainment places, subways, underground streets and the like are continuously emerged, the power consumption is increased day by day, and the variety and the consumption of electric wires and cables are correspondingly increased. The electric wire and cable can transmit and distribute electric energy and transmit information, and is a fuse which is easy to cause fire, however, once the common cable is burnt, the common cable cannot be electrified when the fire actually occurs. However, in case of fire in many important places, people evacuation, lighting of passages, fire alarm devices, automatic fire fighting equipment and other emergency equipment require that cables be kept energized normally for a prescribed time in case of fire. Therefore, fireproof cables have been developed.
Fireproof cable: refers to the performance of a test sample which is burnt in a flame under the specified test conditions and still keeps normal operation for a certain time. The basic characteristics are as follows: the power cable can still maintain the normal operation of the line for a period of time under burning conditions. Generally speaking, the fire-resistant power cable can maintain normal power supply for a period of time when a fire disaster occurs so as to maintain illumination and signal transmission, protect personnel from escaping safely for enough time, and facilitate fire extinguishment and loss reduction.
The existing fireproof power cable has long running time due to the weight of the cable body, the cable conductor is difficult to avoid thinning due to tension, the resistance of the conductor is increased, the conductivity is poor, the insulation and the sheath layer of the cable can be damaged or even torn, the moisture resistance of the cable conductor is not guaranteed, and the cable conductor is not beneficial to long-time use.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
Not enough to prior art, the utility model provides a dampproofing fire prevention power cable excels in has solved current fire prevention power cable intensity low and dampproofing waterproof performance is more weak, is unfavorable for the long-time problem of using of cable.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a dampproofing fire prevention power cable excels in, includes cable core and flame retardant coating, its characterized in that: the quantity that the cable core set up is 3, the cable core is provided with between two liang and strengthens the core, the axis department of flame retardant coating is provided with the cavity and separates the pipe, the inner chamber packing that the cavity separates the pipe has tensile to restraint, cable core, flame retardant coating, cavity are separated and are provided with the packing strip between pipe and the enhancement core, the surface coating of flame retardant coating has the buckler, the outside of buckler is provided with the armor, the outside parcel of armor has the exterior tegument, the exterior tegument adopts zero halogen low smoke insulation material to make.
The cable core comprises a conductor, the outer surface of the conductor is coated with a conductor shielding layer, the outer part of the conductor shielding layer is provided with an insulation shielding layer, and the outer surface of the insulation shielding layer is coated with a metal shielding layer
Preferably, the reinforcing cores are carbon fiber ropes composed of carbon fiber filaments, and the number of the reinforcing cores is 3.
Preferably, the tensile strand is made of a spun yarn material.
Preferably, the filler strip is made of a non-wetting filler material.
Preferably, the fireproof layer is divided into two layers, the first layer is a fireproof mica tape layer, the second layer is a ceramic silica gel rubber isolation layer, and the fireproof mica tape layer is located on the outer side of the ceramic silica gel rubber isolation layer.
(III) advantageous effects
The utility model provides a dampproofing fire prevention power cable excels in. The method has the following beneficial effects:
(1) this dampproofing fire prevention power cable excels in is provided with the enhancement core through the cable core between two liang, strengthens the carbon fiber rope that the core is constituteed by the carbon fiber silk, and the quantity of strengthening the core is 3, constitutes the carbon fiber silk of carbon fiber rope, has tensile strength height, high pliability good, corrosion-resistant, fatigue-resistant, creep resistance, thermal expansion coefficient are little, characteristics such as high low temperature resistant, light in weight. The carbon fiber rope is used as the reinforcing core of the cable, so that the cable cannot be damaged or broken under the self weight and high tension, the inner cavity of the hollow spacer tube is filled with the tensile beam, the tensile beam is made of a spinned yarn material, and the aramid yarn has excellent tensile resistance, so that the tensile mechanical property of the cable is improved, and the purposes of improving the strength of the cable and prolonging the service life of the cable core are achieved.
(2) The high-strength moisture-proof fireproof power cable is made of non-wet filling materials through the filling strips, the outer surface of the fireproof layer is coated with a waterproof film, the moisture-proof and waterproof performance of the cable can be effectively improved, the service life and the stability of the cable are improved, the axis of the fireproof layer is provided with the hollow partition pipe, the hollow partition pipe can form a heat release channel inside a cable core, heat generated in the operation process of a conductor can be discharged through the middle partition pipe, the heat is prevented from being accumulated inside the cable core, the cable core is protected, the fireproof layer is divided into two layers, the first layer is a fire-resistant mica tape layer, the second layer is a ceramic silica gel rubber isolation layer, the fire-resistant mica tape layer is positioned outside the ceramic silica gel rubber isolation layer, mica is used as the fire-resistant layer, the ceramic silica gel is used as the fire-resistant isolation layer, and, the fireproof and fireproof performance of the cable can be effectively guaranteed, and therefore the purposes of improving the moistureproof and waterproof performance of the cable and guaranteeing the fireproof performance of the cable are achieved.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
FIG. 2 is a schematic view of the internal structure of the cable core of the present invention;
fig. 3 is a schematic view of the hollow partition pipe structure of the present invention.
In the figure: 1 outer covering layer, 2 armor layers, 3 waterproof films, 4 cable cores, 41 conductors, 42 conductor shielding layers, 43 insulation shielding layers, 44 metal shielding layers, 5 filling strips, 6 hollow partition pipes, 7 reinforcing cores, 8 tensile bundles and 9 fireproof layers.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the utility model provides a technical scheme, a high-strength dampproofing fire prevention power cable, including cable core 4 and flame retardant coating 9, the quantity that cable core 4 set up is 3, be provided with between two pairs of cable core 4 and strengthen core 7, strengthen core 7 is the carbon fiber rope of constituteing by the carbon fiber silk, strengthen core 7 quantity is 3, the carbon fiber silk of constituteing the carbon fiber rope, have tensile strength height, high pliability good, corrosion-resistant, fatigue-resistant, creep resistance, thermal expansion coefficient is little, high low temperature resistant, light in weight etc. characteristics, with the carbon fiber rope as the reinforcing core 7 carbon fiber silk tensile strength of cable 62 times of steel, can make the cable under self weight and high tension, can not harm, fracture, the axis department of flame retardant coating 9 is provided with cavity spacer tube 6, cavity spacer tube 6 can form the inside heat release channel of a cable core, the heat that produces can pass through cavity spacer tube 6 and discharge, avoid heat gathering inside 4, play the effect of protection 4, the inner chamber of protection of cable core 6 is filled with the drawing 8, the outer fire-resistant drawing of the fire-resistant cable core is equipped with the fire-resistant silica gel insulation layer, the fire-resistant cable core 2, the fire-resistant sheath is equipped with fire-resistant ceramic insulating layer, the fire-resistant sheath material, the fire-resistant sheath is used for the fire-resistant sheath, the fire-resistant sheath material 355, the fire-resistant sheath is used for the fire-resistant sheath, the fire-resistant sheath material, the fire-resistant sheath is used for the fire-resistant sheath, the fire-resistant sheath is used for the fire-resistant sheath, the fire.
The cable core 4 comprises a conductor 41, wherein a conductor shielding layer 42 is coated on the outer surface of the conductor 41, an insulation shielding layer 43 is arranged outside the conductor shielding layer 42, and a metal shielding layer 44 is coated on the outer surface of the insulation shielding layer 43.
During operation, 4 cable cores are provided with between two liang of and strengthen core 7, strengthen core 7 for the carbon fiber rope of compriseing the carbon fiber silk, strengthen the quantity of core 7 and be 3, constitute the carbon fiber silk of carbon fiber rope, have tensile strength height, high pliability good, corrosion-resistant, fatigue-resistant, creep resistance, thermal expansion coefficient is little, characteristics such as resistant high low temperature, light in weight. The tensile strength of the carbon fiber wire of the reinforcing core 7 taking the carbon fiber rope as the cable is 62 times that of steel, so that the cable cannot be damaged or broken under the self weight and high tension, the tensile bundle 8 is filled in the inner cavity of the hollow partition pipe 6, the tensile bundle 8 is made of a spun rayon yarn material, the aramid yarn has excellent tensile resistance, and further the tensile mechanical property of the cable is improved, the filling strip 5 is made of a non-wet filling material, the waterproof film 3 is coated on the outer surface of the fireproof layer 9, so that the moisture-proof and waterproof properties of the cable can be effectively improved, the service life and the stability of the cable are improved, the hollow partition pipe 6 is arranged at the axis of the fireproof layer 9, the hollow partition pipe 6 can form a heat release channel inside the cable core, heat generated in the conductor operation process can be discharged through the middle partition pipe, the heat is prevented from being accumulated inside the cable core 4, and the effect of protecting, the fireproof layer 9 is divided into two layers, the first layer is a fireproof mica tape layer, the second layer is a ceramic silica gel rubber isolation layer, the fireproof mica tape layer is positioned on the outer side of the ceramic silica gel rubber isolation layer, mica is used as a fireproof layer, and ceramic silica gel is used as the fireproof isolation layer, so that the horizontal national standard specification of the cable with the fireproof temperature reaching 950-1000 ℃ is 750-800 ℃, and the fireproof capability of the cable can be effectively ensured.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation. The use of the phrase "comprising one of the elements does not exclude the presence of other like elements in the process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a dampproofing fire prevention power cable excels in, includes cable core (4) and flame retardant coating (9), its characterized in that: the number of the cable cores (4) is 3, reinforcing cores (7) are arranged between every two cable cores (4), hollow partition pipes (6) are arranged at the axis of the fireproof layer (9), tensile bundles (8) are filled in the inner cavities of the hollow partition pipes (6), filling strips (5) are arranged among the cable cores (4), the fireproof layer (9), the hollow partition pipes (6) and the reinforcing cores (7), a waterproof film (3) is coated on the outer surface of the fireproof layer (9), an armor layer (2) is arranged outside the waterproof film (3), an outer coating layer (1) is wrapped outside the armor layer (2), and the outer coating layer (1) is made of a halogen-free low-smoke insulating material; the cable core (4) comprises a conductor (41), the outer surface of the conductor (41) is coated with a conductor shielding layer (42), the outer part of the conductor shielding layer (42) is provided with an insulation shielding layer (43), and the outer surface of the insulation shielding layer (43) is coated with a metal shielding layer (44).
2. A high strength moisture and fire resistant power cable as claimed in claim 1, wherein: the reinforcing cores (7) are carbon fiber ropes formed by carbon fiber yarns, and the number of the reinforcing cores (7) is 3.
3. A high strength moisture and fire resistant power cable as claimed in claim 1, wherein: the tensile bundle (8) is made of a spun yarn material.
4. A high strength moisture and fire resistant power cable as claimed in claim 1, wherein: the filling strip (5) is made of non-wet filling materials.
5. A high strength moisture and fire resistant power cable as claimed in claim 1, wherein: the fireproof layer (9) is divided into two layers, the first layer is a fireproof mica tape layer, the second layer is a ceramic silica gel rubber isolation layer, and the fireproof mica tape layer is located on the outer side of the ceramic silica gel rubber isolation layer.
CN201920581202.8U 2019-04-26 2019-04-26 High-strength moisture-proof fireproof power cable Active CN209880216U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920581202.8U CN209880216U (en) 2019-04-26 2019-04-26 High-strength moisture-proof fireproof power cable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920581202.8U CN209880216U (en) 2019-04-26 2019-04-26 High-strength moisture-proof fireproof power cable

Publications (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111584124A (en) * 2020-05-21 2020-08-25 哈尔滨交联电力电缆制造有限公司 Crosslinked polyethylene insulation polyolefin sheath halogen-free low-smoke flame-retardant power cable

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111584124A (en) * 2020-05-21 2020-08-25 哈尔滨交联电力电缆制造有限公司 Crosslinked polyethylene insulation polyolefin sheath halogen-free low-smoke flame-retardant power cable
CN111584124B (en) * 2020-05-21 2021-11-26 哈尔滨交联电力电缆制造有限公司 Crosslinked polyethylene insulation polyolefin sheath halogen-free low-smoke flame-retardant power cable

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