CN202662372U - Novel 35kv rubber sleeve flexible cable for moving - Google Patents

Abstract

The utility model discloses a new type of 35kV rubber-sheathed flexible cable for mobile use. The cable core is twisted into a cable by a power insulating core, a ground core and a monitoring core. Extruded with an inner sheath, braided with a mesh reinforcing layer, and extruded with an outer sheath, the outer sheath is made of heavy chlorinated polyethylene rubber. The cable has additional properties of anti-aging, high temperature resistance (90°C), low temperature resistance (-40°C), abrasion resistance, softness, twist resistance, and tear resistance. The voltage level of the cable can reach 35kV.

Description

A New 35kV Flexible Rubber-sheathed Cable for Mobile Use

Technical field:

The utility model relates to a cable, in particular to a mobile cable used for power supply of outdoor large-scale industrial and mining mobile equipment, and belongs to the technical field of cables for connecting electrical equipment.

Background technique:

As we all know, there are many mineral resources in the northwestern part of our country. With the development of economy, the development of cables used for power supply connection of mineral resources development equipment has also been promoted. With the development of science and technology, the equipment used for mining mineral resources is becoming more and more More and more tend to be high-power, so the wires and cables used for equipment connection tend to develop at a high voltage level. If a rubber-sheathed cable with a voltage level of 35kV is developed, it will provide the necessary conditions for the use of high-power mobile excavation equipment.

Invention content:

In order to overcome the defects of the prior art, the purpose of this utility model is to provide a new type of 35kV flexible rubber sheathed cable for mobile use. Abrasion, soft, anti-twist, tear-resistant and other properties in one, the voltage level of the cable can reach 35kV.

The utility model solves the technical problem and adopts the following technical solutions:

The cable core is stranded by power insulated wire core, ground wire core and monitoring wire core. The outside of the cable core is braided with mesh nylon reinforcing layer, extruded with inner sheath, braided with mesh reinforced layer, extruded Has an outer sheath of heavy-duty chlorinated polyethylene rubber.

The conductors of the insulated power core are twisted in the same direction by five types of tinned copper conductors, and the conductor shielding layer, the EPDM rubber insulating layer, the insulating non-metallic shielding layer and the metal shielding layer are arranged in sequence outside the conductor harness.

The monitoring wire core conductor is twisted by five types of tinned conductors, and the conductor wire harness is provided with an EPDM rubber insulation layer.

The ground wire core is formed by twisting five types of tinned copper conductors.

Compared with the prior art, the beneficial effects of the utility model are reflected in:

The voltage level of the utility model is as high as 35kV. The conductor shielding of the power core, the insulating layer and the insulating non-metallic shielding layer adopt a three-layer one-time co-extrusion technology. There is another layer of nylon mesh fiber layer in between, and the inner and outer sheath layers are made of heavy-duty chlorinated polyethylene rubber. It has a high voltage rating and features for mobile use.

Description of drawings:

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

Labels in the figure: 1 power insulation core, 2 ground core, 3 monitoring core, 4 mesh nylon reinforcement layer, 5 inner sheath, 6 mesh reinforcement layer, 7 outer sheath, 8 tinned copper conductor, 9 Conductor shielding layer, 10 EPDM rubber insulating layer, 11 insulating non-metallic shielding layer, 12 metal shielding layer.

The utility model will be further described below through specific embodiments in conjunction with the accompanying drawings.

Detailed ways:

Embodiment: In combination with Fig. 1, the new type 35kV rubber-sheathed flexible cable for mobile use in this embodiment consists of three insulated power cores 1, one monitoring core 3, and two ground cores 2 twisted into a cable core, twisted into a cable Afterwards, no wrapping, no filling, a layer of mesh nylon reinforcing layer 4 is woven with high temperature resistant nylon fiber outside the cable core, and then a layer of inner sheath 5 is extruded, and a layer of mesh reinforcing layer 6 is woven with fiber, and finally extruded Go out one deck outer sheath 7. The inner and outer sheaths are made of heavy-duty chlorinated polyethylene rubber. A mesh nylon reinforcement layer 4 is set outside the cable core, and the outermost layer of the cable is extruded with heavy-duty chlorinated polyethylene rubber. The ground wire core 2 and the monitoring wire core 3 are set in the gap between the insulated power wire cores. The purpose of this setting is to effectively reduce the Small cable outer diameter improves the bending performance of the cable.

In the specific setting, the conductor of the insulated power core 1 is twisted in the same direction by five types of tinned copper conductors 8, and the conductor shielding layer 9, the EPDM rubber insulating layer 10, and the insulating non-metallic shielding layer 11 are arranged in sequence outside the conductor harness. And the metal shielding layer 12, the power core conductor shielding layer, the insulating layer and the insulating non-metallic shielding layer adopt three layers of co-extrusion at one time, which can effectively improve the electrical performance of the cable.

The conductor of the monitoring wire core 3 is formed by twisting five kinds of tinned copper conductors 8, and the conductor wire harness is provided with an EPDM rubber insulating layer 10, and the ground wire core 2 is formed by twisting five kinds of tinned conductors.

Claims (4)

1. A new type of 35kV mobile rubber-sheathed flexible cable, characterized in that: The cable core is twisted into a cable by power insulation core (1), ground core (2) and monitoring core (3). The sheath (5) is braided with a mesh reinforcing layer (6) and extruded with an outer sheath (7). The outer sheath (7) is made of heavy-duty chlorinated polyethylene rubber. 2. A new type of 35kV rubber-sheathed flexible cable for mobile use according to claim 1, characterized in that the conductors of the power insulated core (1) are twisted in the same direction by five types of tinned copper conductors (8), A conductor shielding layer (9), an EPDM rubber insulating layer (10), an insulated non-metallic shielding layer (11) and a metal shielding layer (12) are sequentially provided outside the conductor wiring harness. 3. A new type of 35kV rubber-sheathed flexible cable for mobile use according to claim 1, characterized in that the conductors of the monitoring core (3) are twisted from five types of tinned conductors (8), and the conductors outside the wire harness There is an insulating layer of EPDM rubber (10). 4. A new type of 35kV rubber-sheathed flexible cable for mobile use according to claim 1, characterized in that the ground core (2) is twisted from five types of tinned copper conductors (8). the

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