JP2000243153A - Earth center cable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make small the piping part and penetrating through part and execute an efficient work because wiring can be performed with one multi-conductor cable without two of the multi-conductor cable and an earthing conductor, by providing an earthing conductor composed of a conductor and an insulator fit to the allowable current of the multi-conductor cable in the center of the multi-conductor cable and integrating them. SOLUTION: In the center of a multi-conductor cable constituted of the conductors 3 of a cable, the insulators 4 of a cable, inclusion 6 such as paper or nylon, a retaining tape 5, and a sheath 7, the conductor 1 and the insulator 2 of an earthing conductor is put and they are integrated. For fitting to the allowable current of the multi- conductor cable, when the multi-conductor cable has three conductors of each 5.5 mm2, the conductor 1 of 2.2 mm2 of the earthing conductor is put in, and in the case of three conductors of each 22 mm2, the conductor 1 of 5.5 mm2 of the earthing conductor is put in. Consequently, it is unnecessary that only the earthing conductor is separately arranged afterward, the earthing conductor is put in and a part of inclusion is removed, and hence wiring can be performed with one multi-conductor cable. Hereby efficiency of the wiring work is improved, and refuse at processing a terminal end can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001] The present invention relates to a multi-core cable, a multi-core cabtire cable (the above two types are hereinafter referred to as a multi-core cable).
And a multi-core cable in which a ground wire is integrated.

[0002]

2. Description of the Related Art Conventionally, a construction method is employed in which a multi-core cable and a ground wire are separately provided, or one core of the multi-core cable is used as a ground wire.

[0003]

This has the following disadvantages. (A) It takes time to connect one multi-core cable and one ground wire at the time of wiring. (B) Since it takes care of multi-core cables and ground wires at the same time, it takes time. (C) When inserting multi-core cables and ground wires, the pipes must be thick and the penetrations must be large. (D) One core of a multi-core cable may be used as a grounding wire, but the thickness of the grounding wire may be slightly too thick (this is not always the case when moving and using it). Seems like a waste. (E) In the case of a multi-core cable having inclusions (paper, nylon, etc.), the inclusions become garbage at the time of terminal processing work. The present invention has been made to solve these disadvantages.

[0004]

A ground wire suitable for the allowable current of the multi-core cable is inserted in the center.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION A ground wire is inserted into the center of a multi-core cable, or a ground wire is inserted by removing an intermediate substance as necessary.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (a) A form in which a ground wire is inserted in the center of a multi-core cable. For example, in the case of 5.5 mm ² 3 hearts, put ground wire 2 mm ^2. (B) A multi-core cable with a ground wire inserted except for the central inclusion. For example, in the case of a 22 mm ² 3 core, a ground wire of 5.5 mm ² is inserted.

[0007]

According to the present invention, it is not necessary to wire only the ground line later, which is easy. Also, the diameter of the multi-core cable was slightly reduced by replacing one core with a ground wire.
Both pipes and penetrations become smaller. When using insulated wires other than those with green or green-yellow striped patterns as ground wires, it is not necessary to indicate that the wires are ground wires with green tape or the like at the terminals and at appropriate places, so efficiency is reduced. good. Efficient work can be performed because wiring can be performed with one cable instead of the multi-core cable and the ground wire.
Furthermore, by inserting a ground wire and removing a part of the inclusions (paper, nylon, etc.), resources can be reduced and garbage during terminal processing work can be reduced.

[Brief description of the drawings]

FIG. 1 shows a ground wire 1.2 in the center of a multi-core cable according to the present invention.
FIG. Example: 3-wire core (If there is an inclusion 6 in the center, remove it as necessary.)

[Explanation of symbols]

 1. 1. Ground wire conductor 2. Insulation of ground wire Cable conductors 4. 4. Cable insulator Holding tape 6. Inclusions 7. sheath

Claims (2)

[Claims] 1. A cable in which a ground wire is inserted into the center of a multi-core cable to be integrated. 2. A cable in which a ground wire is inserted into the center of a multi-core cabtire cable and integrated.