WO2018233176A1

WO2018233176A1 - Cable grounding method

Info

Publication number: WO2018233176A1
Application number: PCT/CN2017/108785
Authority: WO
Inventors: 韩佳
Original assignee: 广船国际有限公司
Priority date: 2017-06-22
Filing date: 2017-10-31
Publication date: 2018-12-27
Also published as: CN107240787A

Abstract

Provided is a cable grounding method, comprising: providing a constant-force spring (4) and a copper mesh tape (5), connecting one end of the copper mesh tape (5) to a cable armor layer (7) of the cable via the constant-force spring (4), and connecting the other end of the copper mesh tape (5) to ground, so as to achieve quick grounding of the cable. The cable grounding method provides the cable armor layer with a layer of copper mesh tape, and grounds one end of the copper mesh tape (5) that is not connected to the cable armor layer (7); i.e., the end of the copper mesh tape (5) that is not connected to the cable armor layer (7), is connected to a ground stud (6) inside an apparatus wall (3). This manner of connection saves the time spent by workers to strip the cable armor layer when grounding an existing cable, thereby shortening hull manufacturing time, effectively increasing productivity, and lowering labor costs.

Description

Cable grounding method

Technical field

The present invention relates to the field of cable technologies, and in particular, to a cable grounding method.

Background technique

The existing method of grounding the cable mostly requires the worker to manually dial the armor layer of the cable as a ground connection, so that a large amount of time is wasted on the armor layer of the cable. If there are fewer cables to be grounded, the workload is less; but if the cable is large, it will not only waste a lot of manpower and time. In the actual dialing process, it is easy to cut the workers' hands and dial them. It is easy to appear in the process of the breakage of the armor layer copper wire. At the same time, due to the large amount of construction, the construction workers are perfunctory. If the entire armor layer is not taken out as a grounding wire, it is usually only 30% of the total armor layer is directly grounded. Meet the requirements of classification societies and ship owners. For ships with more electrical equipment, the more cables there are, the more work is required for workers to manually remove the armor layer, and the more time it takes. The better the quality of the cable, the denser and tighter the copper wire of the armor layer is, the more difficult it is to dial. This indirectly extends the construction period of the ship.

Therefore, how to propose a grounding method, which can eliminate the grounding process step in which the worker manually dials the armor layer of the cable, is a technical problem that needs to be solved by those skilled in the art.

Summary of the invention

The object of the present invention is to provide a cable grounding method, which can eliminate the need for a worker to manually dial the armor layer of the cable as a grounding wire process step.

To this end, the present invention employs the following technical solutions:

A cable grounding method is provided, which provides a constant force spring and a copper wire braid, and one end of the copper wire braid is connected to the cable armor layer of the cable by the constant force spring, and the other end of the copper wire braid Connect Ground, and thus achieve fast grounding of the cable.

Preferably, before the cable and the copper wire braid are connected by the constant force spring, the method comprises:

The cable to be wired is opened in accordance with a preset length to expose the set length of the cable armor layer, and the constant force spring and the copper wire braid are selected according to the diameter of the cable.

According to the diameter of the cable, the constant force spring and the copper wire braid can ensure that the constant force spring and the copper wire braid can be tightly connected to prevent a large pulling force during the connection or the use of the cable, thereby causing the cable to be detached from the copper wire braid.

Preferably, after the cable is opened according to a preset length, one end of the copper wire braid is first wound on the cable armor layer, the other end is grounded, and then the constant force spring is stretched and wound. On the cable armor layer, the copper wire braid is pressed against the cable armor layer.

Preferably, after the constant force spring is wound on the cable armor layer, a PVC tape is wound around the constant force spring.

Wrapping the PVC tape on the constant force spring can effectively prevent the constant force spring from slack during the working process, causing the cable to detach from the copper wire braid.

Preferably, the length of the copper wire braid ranges from 300 to 500 mm.

Preferably, after the cable is opened according to a preset length, the constant force spring is first stretched, and one end of the copper wire braid is wound around the innermost end of the constant force spring after being stretched. And winding the constant force spring on the cable armor layer, and finally grounding the other end of the copper wire braid.

Preferably, after the cable is opened according to a preset length, the copper wire braid is wound on the cable along with the constant force spring along the length direction after the constant force spring is stretched.

Preferably, the constant force spring is made of a stainless steel material.

Preferably, the surface of the copper wire braid is plated with a zinc layer.

The cable method provided in the present invention is provided by providing a layer of copper wire braid in the cable armor layer, and then Ground one end of the copper wire braided unbonded cable armor layer, that is, connect one end of the copper wire braided cable unattached cable armor layer to the ground stud inside the equipment wall. This type of connection can save the existing cable grounding. Workers need time to strip the cable armor layer, which shortens the hull manufacturing time, which can effectively improve worker productivity and reduce worker costs.

DRAWINGS

1 is a flow chart of a method for grounding a cable provided by the present invention;

2 is a schematic structural view of the cable provided by the present invention after being connected to a copper wire braid.

In the picture:

1, cable core wire; 2, cable protective sleeve; 3, equipment wall; 4, constant force spring; 5, copper wire braid; 6, ground stud; 7, cable armor layer; 8, cable outer sheath; 9, PVC tape.

Detailed ways

In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions of the present invention will be further described below with reference to the accompanying drawings.

The present embodiment provides a cable grounding method. The cable grounding method mainly includes connecting one end of a copper wire braid to a cable armor layer of a cable through a constant force spring, and grounding the other end of the copper wire braid to realize a fast cable. Ground.

2 is a schematic view showing the structure of the cable and the copper wire braid in the grounding method provided in the embodiment. The cable method provided in this embodiment is provided by providing a copper wire braid in the cable armor layer and then copper. One end of the wire braided unbonded cable armor is grounded, that is, one end of the copper wire braided unbonded cable armor layer is connected with the ground stud inside the equipment wall. This kind of connection method can save the existing cable when the grounding is needed. The time for stripping the cable armor layer further shortens the hull manufacturing time, thereby effectively improving worker productivity and reducing worker costs.

In this embodiment, before the cable and the copper wire braid are connected by the constant force spring, the:

The cable to be wired is opened according to the preset length, and the constant force spring and the copper wire braid are selected according to the cable diameter. Further, after the cable is opened according to the preset length, one end of the copper wire braid is wound on the cable armor layer, the other end is grounded, and then the constant force spring is stretched and wound around the cable 铠On the mounting layer, the copper wire braid is pressed against the cable armor layer. At the same time, the model of the constant force spring and the copper wire braid is selected according to the diameter of the cable, so that the constant force spring and the copper wire braid can be tightly connected to prevent the cable from being pulled during the connection or the use of the cable. Detach from the copper wire braid.

In order to prevent the constant force spring from slack during operation, the cable is detached from the copper wire braid. Therefore, after the constant force spring is wound on the cable armor layer in this embodiment, the PVC tape is wound around the constant force spring. Wherein, the length of the copper wire braid has a value ranging from 300 to 500 mm. The installation direction of one end of the copper wire braid extends toward the distal end of the device, and the other end (the end of the copper wire braided cable to which the cable is not connected) is connected to the stud of the device, and the length of the copper wire braid is determined according to the actual situation inside the device. , cut during actual installation, which is selected according to the area of the cable core.

The constant force spring in the embodiment is made of a stainless steel material. The constant force spring is made of stainless steel, so that the material does not cause electromagnetic interference to the cable. This kind of constant force spring does not generate heat during use and is very safe.

As shown in Figure 1, the specific steps of the grounding method are as follows:

S101, selecting a constant force spring and a copper wire braided belt according to the diameter of the cable to be grounded;

S102. Open the cable according to a preset length to expose the armor layer;

S103, winding a copper wire braid on the armor layer of the cable;

S104, winding a cable wrapped with a copper wire braid into a constant force spring, and the constant force spring is specifically wrapped around the copper wire braid and the cable winding;

S105, wrapping a constant force spring wrapped around a copper wire braid with a PVC tape;

S106. Ground the end of the copper wire braided cable without connecting the cable.

The constant force spring and the copper wire braid used in the specific steps of the grounding method provided in this embodiment are all standard parts. Therefore, the components used in the method are not separately designed and produced, and the method provided in the embodiment is further provided. More versatile.

As shown in FIG. 2, FIG. 2 is a cable and a copper wire braid which have been grounded by the grounding method provided in this embodiment, wherein the cable includes a cable core 1, a cable protector 2 wrapped around the cable core 1, and a package The cable armor layer 7 on the covered cable protector 2, the cable is first passed through the device wall 3, and then the cable is passed through one end of the device wall 3 to expose the cable core 1 and the cable armor layer 7, and then the copper wire The braid 5 is wound around the cable armor layer 7, and the copper wire braid 5 is firmly connected to the cable by the constant force spring 4, and then the outer portion of the constant force spring 4 is wound around the PVC tape 9, and the cable does not pass through the device wall 3. One end of the cable sheath 8 is covered. Then, one end of the copper wire braided unconnected cable is connected to the ground stud 6 provided on the device wall 3, thereby completing the grounding task.

Of course, in other embodiments, after the cable is opened according to the preset length, the constant force spring is first stretched, and one end of the copper wire braid is wound around the constant force spring after being stretched. At the innermost end, the constant force spring is wound on the cable armor layer, and finally the other end of the copper wire braid is grounded. Since the constant force spring is made of stainless steel material, the constant force spring can conduct electricity, thereby enabling the connection mode to achieve grounding conduction.

In still another embodiment, after the cable is opened according to the preset length, the copper wire braid is wound along the length direction of the constant force spring along the constant force spring on the cable. That is, the copper wire braid is spirally rotated with the inner wall of the constant force spring, and a layer of copper wire is woven with a structure of a constant force spring.

Both of the above methods can save the time for the existing cable to be grounded, and the worker needs to peel off the cable armor layer, thereby shortening the hull manufacturing time, thereby effectively improving worker work efficiency and reducing worker cost.

It is noted that the basic principles and main features of the present invention and the advantages of the present invention are shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the foregoing embodiments, and that the present invention is described in the foregoing description and the description of the present invention, and the present invention may be practiced without departing from the spirit and scope of the invention. Various changes and modifications are intended to be included within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and their equivalents.

Claims

A cable grounding method, characterized in that a constant force spring and a copper wire braid are provided, and one end of the copper wire braid is connected to a cable armor layer of a cable by the constant force spring, the copper wire braid The other end is grounded to achieve fast grounding of the cable.
The cable grounding method according to claim 1, wherein before the cable and the copper wire braid are connected by the constant force spring, the method comprises:

The cable to be wired is opened in accordance with a preset length to expose the set length of the cable armor layer, and the constant force spring and the copper wire braid are selected according to the diameter of the cable.
The cable grounding method according to claim 2, wherein after the cable is opened according to a preset length, one end of the copper wire braid is wound on the cable armor layer, and the other end is grounded. The constant force spring is then stretched and wound around the cable armor layer such that the copper wire braid is pressed against the cable armor layer.
The cable grounding method according to claim 3, wherein after the constant force spring is wound on the cable armor layer, a PVC tape is wound around the constant force spring.
The cable grounding method according to claim 4, wherein the length of the copper wire braid ranges from 300 to 500 mm.
The cable grounding method according to claim 2, wherein after the cable is opened according to a preset length, the constant force spring is first stretched, and one end of the copper wire braid is wound around the cable. The innermost end of the constant force spring is stretched, and the constant force spring is wound on the cable armor layer, and finally the other end of the copper wire braid is grounded.
The cable grounding method according to claim 2, wherein after the cable is opened according to a preset length, the length of the copper wire braid is stretched along the length direction of the constant force spring along with the constant force spring. Wrap around the cable.
The cable grounding method according to any one of claims 1 to 7, wherein the constant The force spring is made of stainless steel.
The cable grounding method according to any one of claims 1 to 7, characterized in that the surface of the copper wire braid is plated with a zinc layer.