CN201616295U

CN201616295U - Double-layered gap shielding medium-voltage crosslinking cable

Info

Publication number: CN201616295U
Application number: CN2010203026301U
Authority: CN
Inventors: 陈君香
Original assignee: TIANJIN SULI GROUP EXTRA-HIGH-TENSION CABLE Co Ltd
Current assignee: TIANJIN SULI GROUP EXTRA-HIGH-TENSION CABLE Co Ltd
Priority date: 2010-02-08
Filing date: 2010-02-08
Publication date: 2010-10-27
Anticipated expiration: 2020-02-08

Abstract

The utility model relates to a double-layered gap shielding medium-voltage crosslinking cable which comprises a cable conductor. A conductor shielding layer, an insulation layer, an insulated shielding layer and a split-phase metal shielding layer are coated on the outer surface of the cable conductor sequentially, so as to form a cable core; and after three identical cable cores are twisted to form a cable, a belting layer, an inner cover layer, an armored layer and an outer sheath layer are coated on the outer surface the cable sequentially. The medium-voltage crosslinking cable is characterized in that the metal shielding layer comprises an inner cladding and an outer cladding, wherein the inner cladding is wrapped on the insulated shielding layer in a gap no-overlapping manner, and the outer cladding is completely covered the gap of the inner cladding and is wrapped on the outer side of the inner cladding in a gap no-overlapping manner. The utility model has the advantage that the metal shielding layer adopts a double-layered gap lapping structure, so that the processing and production efficiency of the cable is effectively improved.

Description

Press crosslinked cable in a kind of double-deck gap shielding

Technical field

The utility model belongs to the power cable technical field, particularly relates in a kind of double-deck gap shielding pressing crosslinked cable.

Background technology

At present, along with the fast development of Chinese national economy and improving constantly of living standards of the people, industry-by-industry is increasing to the demand of electric power, thereby the demand of cable is also improved constantly, and so just the production efficiency of cable is had higher requirement.

The screen of midium voltage cable generally comprises conductor shield, insulation screen and metal screen layer, in the prior art, conductor shield and insulation screen are for extruding the formula structure, the metal screen layer lap wound packet mode structure of attaching most importance to, individual layer soft copper band has the overlap zone about 15% in wrapped process, promptly from taking 15%, cable feed speed in process of production with this metal screen layer is wanted strict control, with guarantee its metal screen layer have 15% take band certainly, in the above-mentioned production process, the production efficiency of cable is low.

Summary of the invention

The utility model provides a kind of simple in structure for solving the technical problem that exists in the known technology, can effectively improve in the double-deck gap shielding of cable production efficiency and press crosslinked cable.

The technical scheme that the utility model is taked for the technical problem that exists in the solution known technology is: press crosslinked cable in a kind of double-deck gap shielding, comprise cable conductor, be coated with conductor shield on the outer surface of cable conductor successively, insulating barrier, insulation screen and phase-splitting metal screen layer, constitute cable core with this, coat belting layer successively on the outer surface behind three stranded strandings of identical cable core, sheath, armour and external sheath layer, it is characterized in that: described phase-splitting metal screen layer is made up of inner cladding and surrounding layer, inner cladding is wrapped on the insulation screen in the non-overlapping mode in gap, and surrounding layer covers the gap of inner cladding fully and is wrapped in the outside of inner cladding in the non-overlapping mode in gap.

The utility model can also adopt following technical scheme:

Described inner cladding and surrounding layer are the soft copper band.

Advantage and the good effect that the utlity model has are: because the utility model adopts technique scheme, be that the phase-splitting metal screen layer is the wrapped structure in double-deck gap, the phase-splitting metal screen layer is made up of inner cladding and surrounding layer, inner cladding is wrapped on the insulation screen in the non-overlapping mode in gap, surrounding layer covers the gap of inner cladding fully and is wrapped in the outside of inner cladding in the non-overlapping mode in gap, cable with metal screen layer of this wrapped structure, cable feed speed in its production process is accelerated, thereby can effectively improve the production efficiency of cable.

Description of drawings

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

Fig. 2 is the structural representation of metal screen layer in the utility model.

Among the figure: 1, cable conductor; 2, conductor shield; 3, insulating barrier; 4, insulation screen; 5, phase-splitting metal screen layer; 5-1, inner cladding; 5-2, surrounding layer; 6, belting layer; 7, sheath; 8, armour; 9, external sheath layer.

Embodiment

For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:

See also Fig. 1 and Fig. 2, press crosslinked cable in a kind of double-deck gap shielding, comprise three identical cable cores, described cable core is a core with cable conductor 1, be coated with the wrapped phase-splitting metal screen layer 5 that forms of conductor shield 2, insulating barrier 3, insulation screen 4 and soft copper band on the outer surface of cable conductor 1 successively, tighten with belting layer 6 behind above-mentioned three stranded strandings of identical cable core, coat sheath 7, armour 8 and external sheath layer 9 on belting layer 6 outer surfaces successively, press crosslinked cable in constituting with this.Above-mentioned phase-splitting metal screen layer 5 is made up of inner cladding 5-1 and surrounding layer 5-2, and inner cladding 5-1 and surrounding layer 5-2 are the soft copper band, inner cladding 5-1 is wrapped on the insulation screen 4 in the non-overlapping mode in gap, and surrounding layer 5-2 covers the gap of inner cladding 5-1 fully and is wrapped in the outside of inner cladding 5-1 in the non-overlapping mode in gap.

Because the inner cladding 5-1 and the surrounding layer 5-2 of phase-splitting metal screen layer 5 all adopt the non-overlapping wrapped structure in gap, press the production process of crosslinked cable in compared to existing technology, have in the production process of cable of above-mentioned metal screen layer, can increase the feed speed of cable, forming non-overlapping inner cladding 5-1 in gap and the non-overlapping surrounding layer 5-2 in gap, thereby can effectively improve the production efficiency of cable.

Claims

1. press crosslinked cable in a double-deck gap shielding, comprise cable conductor, be coated with conductor shield on the outer surface of cable conductor successively, insulating barrier, insulation screen and phase-splitting metal screen layer, constitute cable core with this, coat belting layer successively on the outer surface behind three stranded strandings of identical cable core, sheath, armour and external sheath layer, it is characterized in that: described phase-splitting metal screen layer is made up of inner cladding and surrounding layer, inner cladding is wrapped on the insulation screen in the non-overlapping mode in gap, and surrounding layer covers the gap of inner cladding fully and is wrapped in the outside of inner cladding in the non-overlapping mode in gap.

2. press crosslinked cable in the double-deck gap shielding according to claim 1, it is characterized in that: described inner cladding and surrounding layer are the soft copper band.