High-flame-retardant self-supporting insulation control cable
By incorporating a mineral fire-resistant layer with weight-reducing grooves and through holes on the inner wall of a low-smoke, non-toxic outer sheath, combined with a mineral insulation layer and an insulation isolation layer, the problems of complex structure, heavy weight, poor flame-retardant effect, and low insulation performance of existing high flame-retardant insulated control cables have been solved. This has resulted in improved mechanical strength and optimized flame-retardant insulation performance of the cable during suspension, extending its service life.
Patent Information
- Application Number
- CN202220497275.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2022-03-09
- Publication Date
- 2025-12-19
- Estimated Expiration
- 2032-03-09
AI Technical Summary
In the existing technology, high flame-retardant insulated control cables have a complex structure and are heavy. They also have poor flame-retardant effect and low insulation performance, which affects their performance.
The outer sheath is made of a mineral fireproof layer with weight-reducing grooves and through holes on the inner wall. The outer wall of the stranded conductor is covered with a mineral insulation layer and an insulation isolation layer. The outer wall of the insulation isolation layer is covered with a mineral fireproof layer. The outer walls of the mineral fireproof layer and the mineral fireproof layer are covered with a low-smoke non-toxic outer sheath. The mineral fireproof layer and the mineral wrapping tape are also connected. Several weight-reducing grooves are opened on the inner wall of the low-smoke non-toxic outer sheath. The material of the mineral insulation layer is magnesium oxide, and the material of the insulation isolation layer is polyvinyl chloride, which has good mechanical and dielectric properties.
It improves the structure of the cable and the mechanical strength of the load-bearing components, ensuring that the cable can bear its own weight during installation or suspension, avoiding breakage and extending its service life. At the same time, it has good flame retardant effect and insulation performance, high stability and good performance.
Smart Images
Figure CN223692933U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of electric power engineering, especially relates to a high flame-retardant self-supporting insulation control cable. BACKGROUND
[0002] In the development of the current information age and network age, the application of electric wires and cables in various industries and fields of society is increasing, and the demand is becoming more and more diversified. Among them, the control cables used in some important engineering facilities, public places, precision equipment, and large machinery have increasingly high requirements for insulation shielding performance and flame-retardant performance. In these fields, developing high flame-retardant insulation control cables has become an important trend.
[0003] However, the existing high flame-retardant insulation control cables are assembled by flame-retardant materials, and their structures are relatively complex and heavy. When they are laid overhead or in the air, they may break due to being unable to bear their overall weight, and they also have technical defects such as poor flame-retardant effect and low insulation performance, which affect the use effect. Therefore, we propose a high flame-retardant self-supporting insulation control cable. UTILITY MODEL CONTENTS
[0004] The main purpose of the utility model is to provide a high flame-retardant self-supporting insulation control cable, which can effectively solve the problems in the background art.
[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:
[0006] A high flame-retardant self-supporting insulation control cable, comprising a low-smoke non-toxic outer sheath and a stranded conductor arranged inside the low-smoke non-toxic outer sheath, a mineral insulation layer is sleeved on the outer wall of the stranded conductor, an insulation isolation layer is sleeved on the outer wall of the mineral insulation layer, a mineral fire barrier layer is sleeved on the outer wall of the insulation isolation layer, and the outer wall of the mineral fire barrier layer is sleeved with a low-smoke non-toxic outer sheath.
[0007] Preferably, a plurality of weight-reducing grooves are formed on the inner side wall of the low-smoke non-toxic outer sheath, and a plurality of polygonal mesh holes are formed between the inner side wall of the low-smoke non-toxic outer sheath and the outer shell.
[0008] Preferably, a plurality of through holes are formed on the inner side wall of the mineral fire barrier layer, the plurality of through holes are circular holes, and are uniformly distributed along the inner side wall of the mineral fire barrier layer.
[0009] Preferably, the stranded conductor is a soft copper conductor composed of a plurality of primary oxygen-free copper wires.
[0010] Preferably, the material of the mineral insulation layer is magnesium oxide.
[0011] Preferably, the material of the insulation isolation layer is polyvinyl chloride.
[0012] Preferably, the ovality of the low-smoke non-toxic outer sheath is less than 0.3mm, and the outer surface of the low-smoke non-toxic outer sheath is further coated with a moisture-proof paint.
[0013] Compared with the prior art, the utility model has the following beneficial effects:
[0014] 1、 the utility model discloses, through setting up a plurality of weight reduction grooves on the inner side wall of low-smoke non-toxic outer sheath and setting up mineral fire barrier with through hole, the mechanical strength of the structure and bearing element of traditional control cable is improved, guarantees that the cable can bear the overall weight of itself when installing or hanging, avoids the condition of fracture, effectively promotes the service life of the cable.
[0015] 2、 the utility model discloses, through the outer wall of stranded conductor is equipped with mineral insulation layer, the outer wall of mineral insulation layer is equipped with insulation isolation layer, and the outer wall of insulation isolation layer is equipped with mineral fire barrier, so that the control cable has good flame-retardant effect and insulation performance, and the overall use stability is high, and the use effect is good. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the whole structure schematic diagram of the utility model;
[0017] Figure 2 It is the cross section structure drawing of the utility model;
[0018] Figure 3 It is the structure schematic diagram of low-smoke non-toxic outer sheath of the utility model;
[0019] Figure 4 It is the structure schematic diagram of mineral fire barrier of the utility model.
[0020] In the drawing: 1, low-smoke non-toxic outer sheath;2, mineral fire barrier;3, insulation isolation layer;4, stranded conductor;5, mineral insulation layer;6, mineral wrapping tape;7, polygonal mesh;8, weight reduction groove;9, through hole. DETAILED DESCRIPTION
[0021] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand, the utility model is further described below in combination with specific implementation manners.
[0022] In the description of the utility model, it needs to explain, the term "upper", "lower", "internal", "external", "front end", "rear end", "two ends", "one end", "the other end" and so on indicate the position relation or position relation based on the position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the device or element indicated must have a particular orientation, a particular orientation and operation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0023] In the description of the utility model, it needs to explain, unless otherwise specified and limited, the terms "installation", "provided with", "connection" and so on should be understood broadly, for example, "connection", can be fixed connection, can also be detachable connection, or integrally connected, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. Embodiment
[0024] Please refer to Figures 1-4 The utility model provides a technical scheme:
[0025] A kind of high flame-retardant self-supporting insulation control cable, including low smoke non-toxic outer sheath 1 and the stranded conductor 4 being arranged in low smoke non-toxic outer sheath 1 inside, the outer wall of stranded conductor 4 is equipped with mineral insulation layer 5, the outer wall of mineral insulation layer 5 is equipped with insulation isolation layer 3, mineral insulation layer 5 and insulation isolation layer 3 between filling mineral wrapping tape 6, and the outer wall of insulation isolation layer 3 is equipped with mineral fire barrier 2, the outer wall of mineral fire barrier 2 is equipped with low smoke non-toxic outer sheath 1.
[0026] In the embodiment, the inner side wall of low smoke non-toxic outer sheath 1 is provided with a plurality of lightening grooves 8, and the inner side wall of low smoke non-toxic outer sheath 1 is provided with a plurality of polygonal mesh holes 7 between the outer shell, the inner side wall of mineral fire barrier 2 is provided with a plurality of through holes 9, a plurality of through holes 9 are circular holes, and are evenly distributed along the inner side wall of mineral fire barrier 2, by being provided with a plurality of lightening grooves 8 on the inner side wall of low smoke non-toxic outer sheath 1 and the mineral fire barrier 2 with through hole 9, the mechanical strength of the structure and the bearing element of the traditional control cable is improved, the overall weight of the cable can be carried when installing or hanging, the situation of fracture is avoided, and the service life of the cable is effectively improved.
[0027] In the embodiment, the stranded conductor 4 is a soft copper conductor stranded by a plurality of primary oxygen-free copper wires, the material of the mineral insulation layer 5 is magnesium oxide, and the material of the insulation isolation layer 3 is polyvinyl chloride, which has good mechanical properties and excellent dielectric properties, so as to improve the use stability of the cable, the outer wall of the stranded conductor 4 is sleeved with the mineral insulation layer 5, the outer wall of the mineral insulation layer 5 is sleeved with the insulation isolation layer 3, and the outer wall of the insulation isolation layer 3 is sleeved with the mineral fire barrier layer 2, so that the control cable has good flame retardant effect and insulation performance, the overall use stability is high, the use effect is good, the ovality of the low-smoke and non-toxic outer sheath 1 is less than 0.3 mm, and the outer surface of the low-smoke and non-toxic outer sheath 1 is further coated with moisture-proof paint, and the moisture-proof capacity of the control cable is further improved.
[0028] It should be noted that the utility model discloses a kind of high flame-retardant self-supporting insulation control cables, by being designed with the through hole 9 of mineral fire barrier layer 2 in the inner side wall of low-smoke and non-toxic outer sheath 1, improve the structure and mechanical strength of traditional control cable load-bearing element, ensure that cable can bear the overall weight of itself when installing or hanging, avoid the situation of fracture, effectively improve the service life of the cable, simultaneously, by being designed with the mineral insulation layer 5 of stranded conductor 4, the outer wall of mineral insulation layer 5 is sleeved with insulation isolation layer 3, and the outer wall of insulation isolation layer 3 is sleeved with mineral fire barrier layer 2, so that the control cable has good flame retardant effect and insulation performance, and the overall use stability is high, and the use effect is good.
[0029] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. A high flame retardant self-supporting insulated control cable comprising a low smoke non-toxic outer sheath (1) and a stranded conductor (4) disposed inside the low smoke non-toxic outer sheath (1), characterized in that: The outer wall of the stranded conductor (4) is sleeved with a mineral insulation layer (5), the outer wall of the mineral insulation layer (5) is sleeved with an insulation isolation layer (3), the insulation isolation layer (3) and the mineral insulation layer (5) are filled with a mineral wrapping tape (6), and the outer wall of the insulation isolation layer (3) is sleeved with a mineral fire barrier layer (2), and the outer wall of the mineral fire barrier layer (2) is sleeved with a low-smoke and non-toxic outer sheath (1).
2. A high flame retardant self-supporting insulated control cable according to claim 1, characterized in that: A plurality of lightening grooves (8) are formed in the inner side wall of the low-smoke and non-toxic outer sheath (1), and a plurality of polygonal mesh holes (7) are formed between the inner side wall of the low-smoke and non-toxic outer sheath (1) and the outer shell.
3. A high flame retardant self-supporting insulated control cable according to claim 1, characterized in that: A plurality of through holes (9) are formed in the inner side wall of the mineral fire barrier layer (2), the plurality of through holes (9) are circular holes, and are uniformly distributed along the inner side wall of the mineral fire barrier layer (2).
4. A high flame retardant self-supporting insulated control cable according to claim 1, characterized in that: The stranded conductor (4) is a soft copper conductor formed by twisting a plurality of primary oxygen-free copper wires.
5. A high flame retardant self-supporting insulated control cable according to claim 1, characterized in that: The material of the mineral insulation layer (5) is magnesium oxide.
6. A high flame retardant self-supporting insulated control cable according to claim 1, characterized in that: The material of the insulation isolation layer (3) is polyvinyl chloride.
7. A high flame retardant self-supporting insulated control cable according to claim 1, characterized in that: The ovality of the low-smoke and non-toxic outer sheath (1) is less than 0.3 mm, and the outer surface of the low-smoke and non-toxic outer sheath (1) is coated with moisture-proof paint.