Novel moisture-proof alarm wire harness and integration method thereof

Abstract

The invention discloses a novel moisture-proof alarm wire harness and an integration method thereof, and belongs to the technical field of wires and cables. Comprising a wire harness core wire, the wire harness core wire is coated with a waterproof wear-resistant protective sleeve, the wire harness core wire comprises a plurality of power control single-core wires of various specifications, a punching alarm wire and a standby core wire, and gaps of the wire harness core wire are filled with waterproof filling ropes. The locomotive power transmission cable is endowed with the characteristics of excellent moisture resistance, corrosion resistance, wear resistance, long service life and the like through the arrangement design of a large number of single-core power lines of different specifications laid in the locomotive body and the unique design of integrating the punching alarm line, the standby core wire, the water-blocking filling rope, the waterproof wear-resistant protective sleeve and the like. The wire harness wiring has the characteristics of convenience in construction, attractiveness, convenience in later wire harness maintenance, capability of shortening maintenance time and the like, the service life of a product is greatly prolonged, and safer and more reliable transmission performance is provided for rolling stock. And a plurality of potential safety hazards in the train running process are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of electric wires and cables, and in particular to a novel moisture-proof alarm wiring harness and an integration method thereof. Background Art

[0002] Locomotive vehicle cables are mainly used inside locomotive bodies as the main connection channels for vehicle signal control, power transmission, and network communication. Their quality directly affects train driving safety.

[0003] Locomotive vehicle cables (on-board cables) are mainly installed inside the locomotive body. The laying space is small and the laying environment is very complex. Often, various cables need to be laid in the same cable trough at the same time (unprotected and closely arranged). For the large number of single-core power cables laid inside the body, users usually use direct laying or simple bundling methods to lay the cables. Since this type of product has no outer skin protection and is thin-walled insulation (in order to save space, the thickness of the general insulation layer is only 0.18-0.25mm), during the long-term operation of the train, the insulation layer is often damaged due to frequent vibration and friction, affecting product quality and causing safety hazards. In addition, the air humidity in the humid southern regions is extremely high all year round, and locomotive cable insulation mostly uses halogen-free, low-smoke, flame-retardant, irradiated cross-linked polyolefin materials. This type of material is easy to absorb moisture, especially when there is a lot of water vapor in the cable trough, the insulation performance drops rapidly, posing a major hidden danger to train driving safety. Summary of the invention

[0004] The purpose of the present invention is to provide a new type of moisture-proof alarm harness and its integration method, which integrates different single-core cables, replaces the original direct laying or bundling laying method with a harness integration method, and adds a special perforated moisture-proof alarm core wire, and the gap is filled with water-blocking cotton (to prevent longitudinal moisture), and the outermost layer of the harness is extruded with a 0.2mm waterproof and wear-resistant protective sleeve (to prevent radial moisture). Such a new integration method not only increases the service life of the cable, but also greatly improves the moisture-proof ability of the cable. At the same time, once moisture invades the harness, an alarm signal can be issued at the first time, and hidden faults can be checked in time, providing a more reliable guarantee for driving safety. At the same time, a certain number of spare cores can be added to the harness according to user needs, which is convenient for emergency replacement when core wire failure occurs unexpectedly in the later stage, and the safety and reliability of train operation can be guaranteed to the greatest extent, which wins time for emergency rescue. In addition, after the harness is integrated by this design, the convenience and aesthetics of wiring can be increased. Thereby solving the problems raised in the above-mentioned background technology.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A novel moisture-proof alarm wiring harness comprises a wiring harness core wire, wherein the wiring harness core wire is covered with a waterproof and wear-resistant protective cover 1, the wiring harness core wire comprises a plurality of power control single-core electric wires 2 of various specifications, a perforated alarm wire 3 and a spare core wire 4, and the gaps between the wiring harness core wires are filled with a water-blocking filling rope 5.

[0007] There are two perforation alarm lines 3, which are located on both sides of the wire harness core wire respectively. The perforation alarm line 3 comprises a solid soft round copper wire with a diameter of 0.5 mm, on which a layer of PE insulating sleeve is extruded, and a plurality of holes are opened on the insulating sleeve at equal intervals along its length direction.

[0008] The spare core wire 4 includes a single core wire having the same specification as the maximum specification of the power control single core wire 2 .

[0009] The power control single-core wire 2 includes four 0.5 mm 2 Power control core wire, 5 0.75mm 2 Power control core wire, 3 1.0mm 2 Power control core wire, 5 1.5mm 2 Power control core wire, 4 2.5mm 2 Power control core wire, the spare core wire 4 includes a 1.0mm 2 Spare core wire and a 2.5mm 2 Spare core wire.

[0010] The waterproof and wear-resistant protective cover 1 is an elastomeric protective cover with a thickness of 0.2 mm.

[0011] The plurality of power control single-core wires 2 and spare core wires 4 of various specifications in the waterproof and wear-resistant protective cover 1 are arranged from the inside to the outside according to the specifications from small to large.

[0012] The water-blocking filling rope 5 is made of water-blocking yarn.

[0013] The two ends of the power control single-core wire 2 are crimped with equipment connection terminals, the two ends of the punched alarm wire 3 are connected to the alarm, and the two ends of the spare core wire 4 are insulated and sealed.

[0014] The novel moisture-proof alarm harness integration method comprises the following steps: integrating a plurality of power control single-core wires 2 of various specifications and spare core wires 4 into harness core wires according to the arrangement rule of small inside and large outside of the core wire specifications; setting the perforated alarm wire 3 on the outer layer of the harness core wires during the harness core wire integration process; and adding water-blocking filling ropes 5 between the core wire gaps during the harness core wire integration process to participate in bundling, so that the harness core wires are dense and have no gaps; and finally, a 0.2 mm thick waterproof and wear-resistant protective cover 1 is extruded on the outermost layer of the harness core wires.

[0015] Furthermore, the novel method for integrating the moisture-proof alarm wiring harness comprises the following specific steps:

[0016] (1) First, all power control single-core wires 2 are 0.5mm 2 The power control core wire is blue, 0.75mm 2 The power control core wire is orange, 1.0mm 2 The power control core wire is green, 1.5mm 2 The power control core wire is brown, 2.5mm 2 The power control core wire is distinguished by the standard gray color spectrum, while the spare core wire 4 is black, and the punch alarm wire 3 is red. They are grouped and arranged in a combination of color and number, that is, the same specification single wire is designed with the same group of colors and distinguished by different digital numbers;

[0017] (2) Four 0.5 mm 2 The power control core wires are twisted to form a center group and are connected in 4 0.5mm 2 The water-blocking filling rope 5 filled in the middle of the power control core wire participates in the bundling;

[0018] (3) 5 0.75mm 2 Power control core wire, 3 1.0mm 2 Power control core wire and 1 1.0mm 2 The spare core wires are twisted around the outer circumference of the center group to form a middle coil layer;

[0019] (4) 5 1.5mm 2 Power control core wire, 4 2.5mm 2 Power control core wire, 1 2.5mm 2 The spare core wire and two punched alarm wires 3 are twisted around the outer circumference of the middle circle layer to form an outer circle layer, and the two punched alarm wires 3 are symmetrically arranged on both sides of the outer circle layer;

[0020] (5) Finally, a 0.2 mm waterproof and wear-resistant protective cover 1 is squeezed around the outer periphery of the outer ring layer to form a moisture-proof alarm harness;

[0021] In the above steps, core wires of the same specification are arranged together when they are arranged into a loop, and water-blocking filling ropes 5 are filled in the gaps between the core wires to participate in twisting into a bundle, while ensuring that the core wires of the entire harness are in a round shape.

[0022] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0023] The present invention arranges and designs a large number of single-core power cables of different specifications laid inside the locomotive body, and through the unique design of integrating perforated alarm lines, spare core wires, water-blocking filling ropes, and waterproof and wear-resistant protective covers, the locomotive power transmission cable is endowed with excellent moisture-proof, corrosion-resistant, wear-resistant, and long-life properties. Among them, the spare core wire is set up to facilitate emergency replacement when a core wire fails accidentally during the use of the wiring harness in the later stage, shorten the maintenance time, and ensure the safe and reliable operation of the train to the greatest extent. In special circumstances, it can also win time for emergency rescue; the water-blocking filling rope is set up to ensure that the core wires of the wiring harness are dense and gapless, prevent the longitudinal penetration of water vapor, and meet the requirements of bundle roundness; the perforated alarm line is set up to send out an alarm signal at the first time, to ensure that the problem can be discovered in time, and the hidden faults can be checked in time, providing a more reliable quality assurance for driving safety; the waterproof and wear-resistant protective cover is set up to improve the wear resistance of the wiring harness in the wiring groove, prevent the outer core wire of the wiring harness from being worn due to long-term vibration during operation, and greatly improve the service life of the wiring harness. At the same time, the good isolation performance of the protective cover can also protect the core wire of the wiring harness from external moisture, oil and other corrosive environments, further ensuring the safety of train operation.

[0024] At the same time, the wiring harness wiring of the present invention also has the characteristics of convenient construction, beautiful appearance, convenient later wiring harness maintenance, and shortened maintenance time, which greatly improves the service life of the product and provides a safer and more reliable transmission performance for locomotives and vehicles. It avoids many safety hazards during train operation and provides a safer and more reliable information transmission channel for the country's railway construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention;

[0026] Figure 2 It is a structural schematic diagram of the punching alarm line of the present invention;

[0027] In the figure: a waterproof and wear-resistant protective cover 1; a power control single-core wire 2; a perforated alarm wire 3; a spare core wire 4; and a water-blocking filling rope 5. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0031] Example 1

[0032] like Figure 1-2 The present embodiment provides a novel moisture-proof alarm wiring harness, including a wiring harness core wire, the wiring harness core wire is covered with a waterproof and wear-resistant protective cover 1, the wiring harness core wire is integrated by a plurality of power control single-core electric wires 2 of various specifications, a punched alarm wire 3 and a spare core wire 4 according to the arrangement rule of the core wire specifications being small inside and large outside, and the gaps between the wiring harness core wires are filled with water-blocking filling ropes 5 to participate in bundling.

[0033] There are two perforation alarm lines 3, which are located on both sides of the wire harness core wire respectively. The perforation alarm line 3 comprises a solid soft round copper wire with a diameter of 0.5 mm, on which a layer of PE insulating sleeve is extruded, and a plurality of holes are opened on the insulating sleeve at equal intervals along its length direction.

[0034] The power control single-core wire 2 includes four 0.5 mm 2 Power control core wire, 5 0.75mm 2 Power control core wire, 3 1.0mm 2 Power control core wire, 5 1.5mm 2 Power control core wire, 4 2.5mm 2 Power control core wire, the spare core wire 4 includes a 1.0mm 2 Spare core wire and a 2.5mm 2 Spare core wire.

[0035] The waterproof and wear-resistant protective cover 1 is an elastic protective cover with a thickness of 0.2 mm. The water-blocking filling rope 5 is made of water-blocking yarn.

[0036] The plurality of power control single-core wires 2 and spare core wires 4 of various specifications in the waterproof and wear-resistant protective cover 1 are arranged from the inside to the outside according to the specifications from small to large.

[0037] The two ends of the power control single-core wire 2 are crimped with equipment connection terminals, the two ends of the punched alarm wire 3 are connected to the alarm, and the two ends of the spare core wire 4 are insulated and sealed.

[0038] The novel method for integrating the moisture-proof alarm wiring harness comprises the following specific steps:

[0039] (1) First, all power control single-core wires 2 are 0.5mm 2 The power control core wire is blue, 0.75mm 2 The power control core wire is orange, 1.0mm 2 The power control core wire is green, 1.5mm 2 The power control core wire is brown, 2.5mm 2 The power control core wire is distinguished by the standard gray color spectrum, while the spare core wire 4 is black, and the punch alarm wire 3 is red. They are grouped and arranged in a combination of color and number, that is, the same specification single wire is designed with the same group of colors and distinguished by different digital numbers;

[0040] (2) Four 0.5 mm 2 The power control core wires are twisted to form a center group and are connected in 4 0.5mm 2 The water-blocking filling rope 5 filled in the middle of the power control core wire participates in the bundling;

[0041] (3) 5 0.75mm 2 Power control core wire, 3 1.0mm 2 Power control core wire and 1 1.0mm 2 The spare core wires are twisted around the outer circumference of the center group to form a middle coil layer;

[0042] (4) 5 1.5mm 2 Power control core wire, 4 2.5mm 2 Power control core wire, 1 2.5mm 2 The spare core wire and two punched alarm wires 3 are twisted around the outer circumference of the middle circle layer to form an outer circle layer, and the two punched alarm wires 3 are symmetrically arranged on both sides of the outer circle layer;

[0043] (5) Finally, a 0.2 mm waterproof and wear-resistant protective cover 1 is squeezed around the outer periphery of the outer ring layer to form a moisture-proof alarm harness;

[0044] In the above steps, core wires of the same specification are arranged together when they are arranged into a loop, and water-blocking filling ropes 5 are filled in the gaps between the core wires to participate in twisting into bundles, so that the core wires of the harness are dense and gapless, while trying to ensure that the core wires of the entire harness are round.

[0045] Figure 1A typical set arrangement diagram of a new type of moisture-proof alarm wiring harness designed for this embodiment, wherein the product model of the moisture-proof alarm wiring harness designed is: WDZ-FCBJXS-DCYJ-125℃; the product specifications are: 0.5 / 4+0.75 / 5+1.0 / 3+1.5 / 5+2.5 / 4+1.0B+2.5B (4 0.5mm 2 Power control core wire, 5 0.75mm 2 Power control core wire, 3 1.0mm 2 Power control core wire, 5 1.5mm 2 Power control core wire, 4 2.5mm 2 Power control core wire, 1 1.0mm 2 Spare core wire, one 2.5mm 2 Spare core wire);

[0046] The required length of the wiring harness and the terminal type can be customized according to the user's actual access equipment. The product specifications can also be customized and assembled according to different usage requirements, and the arrangement principle remains unchanged.

[0047] The present embodiment designs a novel moisture-proof alarm wiring harness and its integration method, which specifically include several single-core control core wires of different specifications, spare core wires, perforated alarm wires, water-blocking fillings, and an outer waterproof and wear-resistant protective cover covering the integral core wires. The crimping equipment connection terminals are connected at both ends of the power control core wire of the wiring harness, the alarm is connected at both ends of the perforated alarm wire, and the insulation heads are sealed at both ends of the spare core wire (reserved for spare use). The wiring harness described in the present invention is mainly aimed at the wiring integration of multiple specifications of single-core thin-walled locomotive power control cables installed inside the locomotive body, so as to achieve convenient, beautiful and easy replacement wiring, and give the core wire excellent moisture-proof and wear-resistant properties as a whole, greatly improving the service life of the product and providing locomotive vehicles with safer and more reliable transmission performance.

[0048] The specification range of the locomotive power control core wire involved in this embodiment refers to the locomotive cable standard. The standard stipulates that the specification of the thin-wall locomotive cable power core wire is 0.5-2.5mm 2 The overall wiring harness is composed of single-core wires of various specifications in a special arrangement according to the different functional requirements of the locomotive. All power core wires are based on blue (0.5mm 2 ), orange (0.75mm 2 )、Green(1.0mm 2 )、Brown(1.5mm 2 ), gray (2.5mm 2) standard color spectrum, and grouped by color + number combination, that is, the same specification single wire is designed as the same group of colors, and is distinguished by different digital numbers. The arrangement rule is small inside and large outside, that is, the single wire with smaller outer diameter is twisted as the central group according to a certain pitch, and the single wire with larger outer diameter is twisted as the outer layer. The single wires of different wire diameters must be arranged crosswise according to the design order to ensure that the overall cable core is as round as possible (such as Figure 1 shown).

[0049] At the same time, the present invention adds special water-blocking yarn (water-blocking filling rope) to the bundle in the twisting of the wire harness to ensure that the core wires of the wire harness are dense and gapless, prevent water vapor from penetrating longitudinally, and meet the requirements of bundle roundness. The water-blocking filling rope is made of halogen-free, low-smoke, flame-retardant cross-linked polyolefin materials. This type of material is easy to absorb moisture, especially in the southern environment with high humidity. When there is a lot of water vapor in the cable trough, the insulation performance of the single-core wire without sheath protection drops rapidly, posing a major hidden danger to train driving safety.

[0050] In order to further ensure the safety of the product, the present invention adds a perforated alarm line invented by our company to the design of the wire core (see Figure 2 ), placed on both sides of the wire harness core wire to participate in the bundling (see Figure 1 ). The perforated alarm line uses 0.5mm solid TR soft round copper wire, extruded with a layer of PE insulation of appropriate thickness, and the insulation surface is continuously and evenly punched (hole spacing ≤15mm, the punching should penetrate to the conductor surface and must not damage the conductor). Its main function is to ensure that once moisture invades the wiring harness end connector or the wiring harness outer skin protection is accidentally damaged and causes water vapor to enter, by monitoring the insulation resistance change value between the two alarm lines, the connected alarm device can send out an alarm signal at the first time, ensuring that problems are discovered in time and hidden faults are promptly checked, providing more reliable quality assurance for driving safety. The working principle of the perforated alarm line is that under dry conditions, the insulation resistance between a pair of moisture-proof alarm lines added to the wiring harness will continue to be greater than 1000MΩ.km, but when the wiring harness is damp or flooded, the insulation resistance between a pair of moisture-proof alarm single lines will rapidly decrease, and the insulation resistance is ≤1000KΩ.km, indicating that the inside of the wiring harness is seriously damp and cannot continue to be used, and an alarm is displayed.

[0051] In order to facilitate emergency replacement of a core wire failure in the later use of the wiring harness, shorten the maintenance time, and ensure the safety and reliability of train operation to the greatest extent, and also save time for emergency rescue in special circumstances, a spare core wire is added to the wiring harness. The rule for adding spare core wires is: if the wiring harness set contains 0.5-2.5mm 2 For core wires of various specifications, select 2.5mm 2 and 1.0mm 2 One single wire each as a spare core wire; if it is only 1.0mm2 For specifications below, select 1.0mm 2 As spare core wires. For easy identification, spare core wires are designed with black insulation, and digital numbers are used to distinguish when multiple wires are added (such as Figure 1 ). The design of spare core wire mainly considers cost and specification coverage.

[0052] Considering that there are other types of cables (with sheaths) in the wiring trough inside the car body, in order to prevent the outer core wire of the wiring harness from being worn due to long-term vibration during train operation, the wiring harness designed by the present invention adds outer skin protection, and the outermost layer of the wiring harness is extruded with a 0.2mm elastomer protective cover (waterproof and wear-resistant protective cover). While ensuring the overall softness of the wiring harness, it can improve the wear resistance of the wiring harness in the wiring trough and greatly increase the service life of the wiring harness. At the same time, the good isolation performance of the protective cover can also protect the core wire of the wiring harness from external moisture, oil pollution and other corrosive environments, further ensuring the safety of train operation.

[0053] The present invention re-integrates and designs a large number of single-core power cables laid inside the locomotive body, and replaces the original direct laying or simple bundling wiring method with a new moisture-proof alarm harness. The product arranges and designs core wires of different specifications, and through the unique design of integrating perforated alarm wires, spare core wires and wear-resistant protective sleeves, the locomotive power transmission cable is endowed with excellent moisture-proof, corrosion-resistant, wear-resistant and long-life characteristics. At the same time, the use of harness wiring also has the characteristics of convenient construction, beautiful appearance and easy maintenance, which not only greatly improves the service life of the product, but also avoids many safety hazards during train operation, and provides a safer and more reliable information transmission channel for the country's railway construction.

Claims

1. A novel moisture-proof alarm wiring harness, comprising a wiring harness core wire, characterized in that: The core wires of the wiring harness are coated with a waterproof and wear-resistant protective cover (1), the core wires of the wiring harness include a plurality of power control single-core electric wires (2) of various specifications, a perforated alarm wire (3) and a spare core wire (4), and the gaps between the core wires of the wiring harness are filled with a water-blocking filling rope (5).

2. According to claim 1, the novel moisture-proof alarm wiring harness is characterized in that: There are two perforated alarm wires (3), which are respectively located on both sides of the wire harness core wire. The perforated alarm wires (3) comprise a solid soft round copper wire with a diameter of 0.5 mm, a layer of PE insulating sleeve is extruded on the solid soft round copper wire, and a plurality of holes are opened on the insulating sleeve at equal intervals along its length direction.

3. According to claim 1, the novel moisture-proof alarm wiring harness is characterized in that: The spare core wire (4) comprises a single core wire having the same specification as the maximum specification of the power control single core wire (2).

4. According to claim 3, the novel moisture-proof alarm wiring harness is characterized in that: The power control single-core wire (2) includes four 0.5 mm 2 Power control core wire, 5 0.75mm 2 Power control core wire, 3 1.0mm 2 Power control core wire, 5 1.5mm 2 Power control core wire, 4 2.5mm 2 The power control core wire, the spare core wire (4) includes a 1.0 mm 2 Spare core wire and a 2.5mm 2 Spare core wire.

5. The novel moisture-proof alarm wiring harness according to claim 1 is characterized in that: The waterproof and wear-resistant protective cover (1) is an elastomeric protective cover with a thickness of 0.2 mm.

6. The novel moisture-proof alarm wiring harness according to claim 1 is characterized in that: A plurality of power control single-core electric wires (2) and spare core wires (4) of various specifications are arranged from the inside to the outside in ascending order of specifications within the waterproof and wear-resistant protective cover (1).

7. The novel moisture-proof alarm wiring harness according to claim 1 is characterized in that: The water-blocking filling rope (5) is made of water-blocking yarn.

8. The novel moisture-proof alarm wiring harness according to claim 1 is characterized in that: The two ends of the power control single-core electric wire (2) are crimped with equipment connection terminals, the two ends of the punched alarm wire (3) are connected to the alarm, and the two ends of the spare core wire (4) are insulated and sealed.

9. A novel method for integrating a moisture-proof alarm harness according to any one of claims 1 to 8, characterized in that: The following steps are involved: A plurality of power control single-core wires (2) with various specifications and spare core wires (4) are integrated into a wire harness core wire according to the arrangement rule of the core wire specifications being smaller inside and larger outside. During the integration of the wire harness core wire, a punched alarm wire (3) is arranged on the outer layer of the wire harness core wire, and during the integration of the wire harness core wire, a water-blocking filling rope (5) is added between the gaps of the core wires to participate in the bundling, so that the wire harness core wires are dense and have no gaps. Finally, a 0.2 mm thick waterproof and wear-resistant protective cover (1) is extruded on the outermost layer of the wire harness core wire.

10. The novel moisture-proof alarm harness integration method according to claim 9 is characterized in that: The specific steps include: (1) First, connect all the power control single-core wires (2) according to 0.5mm 2 The power control core wire is blue, 0.75mm 2 The power control core wire is orange, 1.0mm 2 The power control core wire is green, 1.5mm 2 The power control core wire is brown, 2.5mm 2 The power control core wire is distinguished by a standard gray color spectrum, while the spare core wire (4) is black, and the punch alarm wire (3) is red. They are grouped and arranged in a combination of colors and numbers, that is, single wires of the same specification are designed with the same group of colors and distinguished by different digital numbers; (2) Place four 0.5 mm 2 The power control core wires are twisted to form a center group and are connected in 4 0.5mm 2 The water-blocking filling rope (5) in the middle of the power control core wire participates in the bundling; (3) 5 0.75mm 2 Power control core wire, 3 1.0mm 2 Power control core wire and 1 1.0mm 2 The spare core wires are twisted around the outer circumference of the center group to form a middle coil layer; (4) 5 1.5mm 2 Power control core wire, 4 2.5mm 2 Power control core wire, 1 2.5mm 2 The spare core wire and two punched alarm wires (3) are twisted around the outer circumference of the middle circle layer to form an outer circle layer, and the two punched alarm wires (3) are symmetrically arranged on both sides of the outer circle layer; (5) Finally, a 0.2 mm waterproof and wear-resistant protective cover (1) is extruded around the outer periphery of the outer ring layer to form a moisture-proof alarm harness; In the above steps, core wires of the same specification are arranged together when they are arranged into a loop, and water-blocking filling ropes (5) are filled in the gaps between the core wires to participate in twisting into a bundle, while ensuring that the core wires of the entire harness are in a round shape.

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