CN202917236U

CN202917236U - Environment-friendly shielded cable for electric power

Info

Publication number: CN202917236U
Application number: CN 201220228785
Authority: CN
Inventors: 郑锚; 郑根; 何开云
Original assignee: SICHUAN CHUANTAI CABLE CO Ltd
Current assignee: SICHUAN CHUANTAI CABLE CO Ltd
Priority date: 2012-05-21
Filing date: 2012-05-21
Publication date: 2013-05-01
Anticipated expiration: 2022-05-21

Abstract

The utility model discloses an environment-friendly shielded cable for electric power. A zero wire core is arranged in the center of the cable, three conductive wire cores and three ground wire cores are arranged around the zero wire core, and the conductive wire cores and the ground wire cores are spaced from each other in arrangement; an insulating layer and a sub shielding layer are arranged outside each of the conductive wire cores, each of the ground wire cores and the insulating zero wire core from inside to outside, the conductive wire cores, the ground wire cores and the insulating zero wire core are stranded into a cable, a wrapping tape is arranged outside the cable, and glass fiber ropes are filled in gaps in the wrapping tape; a main shielding layer is arranged outside the wrapping tape; a bare copper wire is arranged between the main shielding layer and the wrapping tape; and an outer sheath is arranged outside the main shielding layer. The main shielding layer and the sub shielding layers are galvanized copper wire braided sleeves or copper tapes. To sum up, the environment-friendly shielded cable for electric power, provided by the utility model, does not interfere with the outside during electric power transmission, has excellent performance of anti-external interference, and especially can be used in a frequency conversion circuit to improve the starting performance of a motor.

Description

Environment protection type shielding electric cable for electric power

Technical field

The utility model relates to the electric wire field, belongs to specifically the electric wiring distribution connection electric wire that transmits electric power, and is specially adapted to the motor wiring of frequency control loop and uses.

Background technology

At present along with the raising of all trades and professions automaticity, both at home and abroad to " electromagnetic compatibility " this negligible problem in addition standard that is confirmed and formulated standard in the past.Originally can not satisfy present requirement as the used plain edition electric wire of transferring electric power, particularly in the frequency conversion loop because unavoidably exist high order harmonic component to disturb, the contiguous distribution line electrical system of interference effect brings hidden danger for the normal operation of whole system by transmission channel (electric wire).

In order to solve above-mentioned deficiency of the prior art, the utility model proposes a kind of new solution.

The utility model content

The purpose of this utility model provides a kind of environment protection type shielding electric cable for electric power.To solve the existing the problems referred to above of plain edition electric wire.

For reaching the foregoing invention purpose, the technical scheme that the utility model adopts is: a kind of environment protection type shielding electric cable for electric power is provided, cable center arranges a zero line core, and three conductor wire cores and three ground connection cores are set around the zero line core, and conductor wire core and ground connection core space arrange; Conductor wire core, ground connection core and insulation zero line core arrange respectively insulating barrier and sub-shield from inside to outside, conductor wire core, ground connection core and insulation zero line core twisted synthesizing cable, and cable arranges band outward, and band internal pore place is filled with glass cord; The total screen of band arranged outside; Between total screen and the band bare copper wire is set, total screen arranged outside oversheath.

Total screen and sub-shield are zinc-plated copper wire mesh grid pipe or copper strips.

In sum, environment protection type shielding electric cable for electric power provided by the utility model can not produce to external world thousand and disturbs when electric energy transmitting, and anti-external disturbance performance is better simultaneously, particularly uses the starting performance that can improve motor in the frequency conversion loop.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Wherein, 1, conductor wire core; 2, insulating barrier; 3, ground connection core; 4, glass cord; 5, band; 6, zero line core; 7, total screen; 8, bare copper wire; 9, oversheath; 10, sub-shield.

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described in detail.

-as shown in Figure 1, and this environment protection type shielding electric cable for electric power, cable center arranges a zero line core 6, and three conductor wire cores 1 and three ground connection cores 3 are set around the zero line core 6, and conductor wire core 1 and ground connection core 3 spaces arrange; Conductor wire core 1, ground connection core 3 and insulation zero line core 6 arrange respectively insulating barrier 2 and sub-shield 10 from inside to outside, conductor wire core 1, ground connection core 3 and insulation zero line core 6 twisted synthesizing cables, and cable arranges band 5 outward, and band 5 internal pore places are filled with glass cord 4; The total screen 7 of band 5 arranged outside; Between total screen 7 and the band 5 bare copper wire 8 is set, total screen 7 arranged outside oversheaths 9).

Described total screen 7 and sub-shield 10 are zinc-plated copper wire mesh grid pipe or copper strips.Insulating barrier 2 and oversheath 9 are the silicon rubber material.

In sum, environment protection type shielding electric cable for electric power provided by the utility model can not produce to external world thousand and disturbs when electric energy transmitting, anti-external disturbance performance is better simultaneously, particularly uses the starting performance (reducing the motor shaft current affects) that can improve motor in the frequency conversion loop.

Although by reference to the accompanying drawings embodiment of the present utility model is described in detail, should not be construed as the restriction to the protection range of this patent.In the described scope of claims, the various modifications that those skilled in the art can make without creative work and distortion still belong to the protection range of this patent.

Claims

1. environment protection type shielding electric cable for electric power, it is characterized in that: cable center arranges a zero line core (6), zero line core (6) arranges three conductor wire cores (1) and three ground connection cores (3) on every side, and conductor wire core (1) and ground connection core (3) space arrange; Conductor wire core (1), ground connection core (3) and insulation zero line core (6) arrange respectively insulating barrier (2) and sub-shield (10) from inside to outside, conductor wire core (1), ground connection core (3) and insulation zero line core (6) twisted synthesizing cable, cable arranges band (5) outward, and band (5) internal pore place is filled with glass cord (4); The total screen of band (5) arranged outside (7); Between total screen (7) and the band (5) bare copper wire (8) is set, total screen (7) arranged outside oversheath (9).

2. described environment protection type shielding electric cable for electric power according to claim 1, it is characterized in that: described total screen (7) and sub-shield (10) are zinc-plated copper wire mesh grid pipe or copper strips.