Water-blocking cable

Abstract

The utility model relates to a water-blocking cable, including conductor, insulating sheath, wrapping, filling rope, braided shield and water-blocking layer, one side outer wall of the conductor is provided with the insulating sheath, the two insulating sheaths are externally provided with the wrapping, one side inner wall of the wrapping is symmetrically sleeved with the filling rope, the outer wall of one side of the wrapping is provided with the braided shield, the outer wall of one side of the wrapping is provided with the water-blocking layer, and the outer wall of one side of the wrapping is provided with the water-blocking layer. A waterproof layer is mounted on the outer wall of one side of the braided shield; a sheath is mounted on the outer wall of one side of the waterproof layer; one side of the filling rope is wound and connected to the outer wall of the insulating sheath; according to the utility model, the cross-linked polyethylene insulation braided shielding water-blocking cable has the advantages of strong water-blocking property, good electromagnetic compatibility, low transmission impedance and working capacitance, and good anti-interference and low-radiation performance; the cable is suitable for signal and data transmission of an electronic computer system, a monitoring loop and an automatic control system as well as places with water blocking requirements in connection of detection instruments and meters.

Description

Technical Field

[0001] The utility model relates to the technical field of cables, in particular to a water-blocking cable. Background Art

[0002] Cables are typically rope-like cables made up of several or several groups of conductors twisted together. Each group of conductors is insulated from each other and often twisted around a central core. The entire cable is covered with a highly insulating layer. The cable has the characteristics of internal power supply and external insulation. However, existing cables have weak water resistance, average electromagnetic compatibility, high transmission impedance and working capacitance, and average anti-interference and low-radiation performance, resulting in low applicability for some precision electrical appliances. Utility Model Content

[0003] The problem solved by the utility model is to provide a water-blocking cable. The cross-linked polyethylene insulated braided shielded water-blocking cable has strong water-blocking properties, good electromagnetic compatibility, low transmission impedance and working capacitance, and good anti-interference and low radiation performance. It is suitable for use in electronic computer systems, monitoring loops, and automatic control system signal and data transmission, as well as detection instruments and meter connections where water-blocking is required.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: a water-blocking cable, comprising a conductor, an insulating sheath, a wrap, a filling rope, a braided shield and a water-blocking layer, an insulating sheath is installed on the outer wall of one side of the conductor, wraps are installed outside the two insulating sheaths, filling ropes are symmetrically sleeved on the inner wall of one side of the wrap, a braided shield is installed on the outer wall of one side of the wrap, and a water-blocking layer is installed on the outer wall of one side of the braided shield.

[0005] Preferably, a sheath is installed on one outer wall of the water-blocking layer.

[0006] Preferably, one side of the filling rope is wound and connected to the outer wall of the insulating sheath.

[0007] Preferably, the specification of the conductor is 18 / 0.12mm.

[0008] The beneficial effects of the utility model are: the cross-linked polyethylene insulated braided shielded water-blocking cable has strong water-blocking properties, good electromagnetic compatibility, low transmission impedance and working capacitance, as well as good anti-interference and low radiation performance. It is suitable for use in electronic computer systems, monitoring loops, signal and data transmission of automatic control systems, and in places where water-blocking requirements are required for the connection of detection instruments and meters. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a partial three-dimensional structural diagram of the utility model;

[0010] Figure 2This is a side cutaway structural diagram of the present invention.

[0011] Legend:

[0012] 1. Conductor; 2. Insulation jacket; 3. Wrapping; 4. Filling rope; 5. Braided shield; 6. Water-blocking layer; 7. Sheath. DETAILED DESCRIPTION

[0013] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0014] Specific examples are given below.

[0015] See also Figures 1 and 2 , water-blocking cable, including a conductor 1, an insulating sheath 2, a wrap 3, a filling rope 4, a braided shield 5 and a water-blocking layer 6. An insulating sheath 2 is installed on the outer wall of one side of the conductor 1, and wraps 3 are installed outside the two insulating sheaths 2. Filling ropes 4 are symmetrically sleeved on the inner wall of one side of the wrap 3, a braided shield 5 is installed on the outer wall of one side of the wrap 3, and a water-blocking layer 6 is installed on the outer wall of one side of the braided shield 5; a sheath 7 is installed on the outer wall of one side of the water-blocking layer 6, which can protect the conductor 1 and prevent damage to the conductor 1 from the outside; one side of the filling rope 4 is wrapped and connected to the outer wall of the insulating sheath 2, and the conductor 1 can be buffered by the filling rope 4 to prevent damage to the conductor 1 caused by impact; the specification of the conductor 1 is 18 / 0.12mm, which can ensure that the conductor 1 can be used in different environments.

[0016] Working principle: When a single conductor 1 works in an environment of 20℃, the DC resistance is less than or equal to 95.0Ω / 1000m. The sample is immersed in water at 20±1℃ for more than or equal to 1 hour, the test voltage is 80 to 500V, and the test time is 1 to 5min. The insulation resistance of the insulating sheath 2 in this environment is measured to be greater than or equal to 1100MΩ·km, and the insulation resistance of the water-blocking layer 6 and the sheath 7 in this environment is measured to be greater than or equal to 1300MΩ·km, which can ensure that the cable can operate normally in normal use. The sample is immersed in water at 90±2℃ for more than or equal to 1 hour, the test voltage is 80 to 50 0V, the test time is 1 to 5min, and the insulation resistance of the insulating sheath 2 in this environment is measured to be greater than or equal to 1.10MΩ·km, and the insulation resistance of the water-blocking layer 6 and the sheath 7 in this environment is also measured to be greater than or equal to 1.29MΩ·km, which can ensure normal operation in high-temperature water; the cross-linked polyethylene insulated braided shielded water-blocking cable has strong water-blocking properties, good electromagnetic compatibility, low transmission impedance and working capacitance, as well as good anti-interference and low radiation performance, and is suitable for use in electronic computer systems, monitoring circuits, automatic control system signal and data transmission, as well as detection instruments and instrument connections where water-blocking requirements are required.

[0017] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Water-blocking cable, characterized in that: The invention comprises a conductor (1), an insulating sheath (2), a wrap (3), a filling rope (4), a braided shield (5) and a water-blocking layer (6); the insulating sheath (2) is installed on one outer wall of the conductor (1); the wraps (3) are installed outside two insulating sheaths (2); the filling rope (4) is symmetrically sleeved on one inner wall of the wrap (3); the braided shield (5) is installed on one outer wall of the wrap (3); and the water-blocking layer (6) is installed on one outer wall of the braided shield (5).

2. The water-blocking cable according to claim 1, characterized in that: A protective sheath (7) is installed on one outer wall of the water-blocking layer (6).

3. The water-blocking cable according to claim 1, characterized in that: One side of the filling rope (4) is wound and connected to the outer wall of the insulating sheath (2).

4. The water-blocking cable according to claim 1, characterized in that: The specification of the conductor (1) is 18 / 0.12 mm.

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