CN205751678U

CN205751678U - A kind of ship power cable

Info

Publication number: CN205751678U
Application number: CN201620425174.7U
Authority: CN
Inventors: 朱学勇; 周婷婷; 王亚平
Original assignee: ANHUI HUALING CABLE GROUP Co Ltd
Current assignee: ANHUI HUALING CABLE GROUP Co Ltd
Priority date: 2016-05-12
Filing date: 2016-05-12
Publication date: 2016-11-30
Anticipated expiration: 2026-05-12

Abstract

The utility model discloses a kind of ship power cable, it includes cable core, high fire-retardance oxygen barrier inner liner, armor and restrictive coating.Described cable core is by metallic shield core twisted synthesizing cable；Described metallic shield core includes conductor, conductor shield, insulating barrier, insulation screen and metal screen layer；The outside coating conductor screen layer of described conductor；The outside wrapping insulation layer of described conductor shield；Outside described insulating barrier, insulation screen is set；Described insulation screen extrudes inside metal screen layer；High fire-retardance oxygen barrier inner liner it is provided with outside described cable core；Described high fire-retardance oxygen barrier inner liner outer braid armor；Described armor is outside around jacket layer；Described cable core is provided with packed layer with the gap portion of high fire-retardance oxygen barrier inner liner.This utility model electric pressure is high, can reach 8.7/10kV, has electric property, good mechanical performance simultaneously, and the most easy to process, core softness is easily installed use.

Description

A kind of ship power cable

Technical field

This utility model relates to field of cables, particularly relates to a kind of ship power cable.

Background technology

Along with development and the progress of technology, naval vessel medium-pressure power cable is developing to more safe and environment-friendly, efficient energy-saving direction.Requiring that cable has anti-flammability, stability at secure context, environmental protection aspect requires cable low smoke and zero halogen, and without material influential on environment, and during cable fire, the flue gas of release wants hypotoxicity；Require on efficient energy-saving that cable designs in electric pressure and structure and reduce loss as far as possible, improve capacity usage ratio, thus need a kind of conveying electric energy that can reach can reduce again the naval vessel medium-pressure power cable of electric energy loss.

Utility model content

The purpose of this utility model is that provides a kind of electric property, good mechanical performance to solve the problems referred to above, thermal deformation, thermal contraction performance are excellent, there is tear resistance, wearability, low temperature resistant bending, oil resistivity, against weather, fire resistance is good, the characteristics such as smog few, Halogen, low toxicity, the salt spray resistance produced after burning, the most easy to process, core softness is easily installed the naval vessel medium-pressure power cable of use.

To achieve these goals, this utility model is achieved through the following technical solutions: a kind of ship power cable, it includes cable core, high fire-retardance oxygen barrier inner liner, armor and restrictive coating；Described cable core is by metallic shield core twisted synthesizing cable；Described metallic shield core includes conductor, conductor shield, insulating barrier, insulation screen and metal screen layer；The outside coating conductor screen layer of described conductor；The outside wrapping insulation layer of described conductor shield；Outside described insulating barrier, insulation screen is set；Described insulation screen extrudes inside metal screen layer；High fire-retardance oxygen barrier inner liner it is provided with outside described cable core；Described high fire-retardance oxygen barrier inner liner outer braid armor；Described armor is outside around jacket layer；Described cable core is provided with packed layer with the gap portion of high fire-retardance oxygen barrier inner liner.

Further,Described conductor uses the 5th class tinned copper wire to form through stock strand or multiple strand, and twisting pitch is 8～10 times of conductor diameters.

Further, described conductor shield is all to use the wrapped semi-conductive adhesive that adds of semi-conductive tape to extrude and form with metal screen layer.

Further, the rubber material of the high specific insulation of described insulating barrier employing extrudes and forms.

Further, described metal screen layer uses dacron thread to form with tinned copper wire combined knitting.

Further, one layer of vulcanization type low smoke halogen-free flame-retardant polyolefin of described restrictive coating employing extrudes and forms.

The beneficial effects of the utility model are: this utility model simple in construction, reasonable in design, electric pressure height can reach 8.7/10kV, there is electric property, good mechanical performance simultaneously, thermal deformation, thermal contraction performance are excellent, the characteristics such as also having tear resistance, wearability, low temperature resistant bending, oil resistivity, against weather, fire resistance is good, smog few, Halogen, low toxicity, the salt spray resistance produced after burning, the most easy to process, core softness is easily installed use.

Accompanying drawing explanation

Fig. 1 is this utility model structural representation.

Detailed description of the invention

The utility model is described in further detail for embodiment in below in conjunction with the accompanying drawings, but is not intended that any restriction of the present utility model.

Referring to shown in Fig. 1, this utility model provides a kind of technical scheme: a kind of ship power cable, it includes cable core, high fire-retardance oxygen barrier inner liner 2, armor 3 and restrictive coating 4；Cable core is by metallic shield core 1 twisted synthesizing cable；Metallic shield core 1 includes conductor 5, conductor shield 6, insulating barrier 7, insulation screen 8 and metal screen layer 9；Described conductor 5 uses the 5th class tinned copper wire to form through stock strand or multiple strand, twisting pitch is 8～10 times of conductor diameters, the conductor 5 of insulated wire cores and is stranding into through stock strand again by the 5th class tinned copper wire, reduce conductor strand pitch, increase conductor strand pressure, it is achieved conductor press molding, to improve partial discharge performance, reduce the formation of electric branch, improve the service life of cable.

The outside coating conductor screen layer 6 of conductor 5, conductor shield 6 uses semi-conductive tape wrapped and semi-conductive high polymer material extrudes the mode combined, with the non-uniform electric avoiding the 5th class tinned conductor to cause because of rough surface, be conducive to improving the partial discharge performance of cable.

The outside wrapping insulation layer 7 of conductor shield 6, insulating barrier 7 selects specific insulation to be more than 1 × 10¹⁶The rubber material of Ω cm can ensure that the electrical property of cable and can meet the requirement of low smoke and zero halogen low smoke toxicity and mechanical and physical performance, and has certain flexibility.

Insulating barrier 7 is outside arranges insulation screen 8, and insulation screen 8 uses semi-conductive tape wrapped and semi-conductive high polymer material extrudes the mode combined, and puts performance improving the office of cable.

Insulation screen 8 extrudes in metal screen layer internal 9, metallic shield uses dacron thread to form with tinned copper wire combined knitting, so can ensure that metal screen layer can guarantee that again cable has the advantages that bending radius is little while playing shielding electric field action, ensure the flexibility of cable, it is simple to install and use.

Being provided with high fire-retardance oxygen barrier inner liner 2 outside cable core, inner liner 2 uses the oxygen index (OI) low-smoke halogen-free polyolefin material more than 45%, to improve oxygen barrier effect, and then improves the fire resistance of cable, it is ensured that its safety.

High fire-retardance oxygen barrier inner liner 2 outer braid armor 3；Armor 3 is outside around jacket layer 4, the coat layer of power cable 4 uses vulcanization type low smoke halogen-free flame-retardant polyolefin, having the performances such as excellent mechanical and physical performance, fire resistance, low smoke toxicity, solve electric cable with large cross-section crosslinking problem simultaneously, existing cross-linked polyolefin mostly uses cross-linking radiation, but the cable for super large external diameter, irradiation processing is extremely difficult, and cross-links uneven, and vulcanization type low smoke halogen-free flame-retardant polyolefin is avoided that these situations, make cable easy to process, and can ensure that the performance of cable.

Cable core is provided with packed layer 10 with the gap portion of high fire-retardance oxygen barrier inner liner 2.

Embodiment provided above is better embodiment of the present utility model, only it is used for convenient explanation this utility model, not this utility model is made any pro forma restriction, any art has usually intellectual, if in the range of without departing from the carried technical characteristic of this utility model, utilize the Equivalent embodiments that the done local of this utility model disclosed technology content is changed or modified, and without departing from technical characteristic content of the present utility model, all still fall within the range of this utility model technical characteristic.

Claims

1. a ship power cable, it includes cable core, high fire-retardance oxygen barrier inner liner, armor and restrictive coating, it is characterised in that: described cable core is by metallic shield core twisted synthesizing cable；Described metallic shield core includes conductor, conductor shield, insulating barrier, insulation screen and metal screen layer；The outside coating conductor screen layer of described conductor；The outside wrapping insulation layer of described conductor shield；Outside described insulating barrier, insulation screen is set；Described insulation screen extrudes inside metal screen layer；High fire-retardance oxygen barrier inner liner it is provided with outside described cable core；Described high fire-retardance oxygen barrier inner liner outer braid armor；Described armor is outside around jacket layer；Described cable core is provided with packed layer with the gap portion of high fire-retardance oxygen barrier inner liner.

A kind of ship power cable the most according to claim 1, it is characterised in that: described conductor uses the 5th class tinned copper wire to form through stock strand or multiple strand, and twisting pitch is 8～10 times of conductor diameters.

A kind of ship power cable the most according to claim 1, it is characterised in that: described conductor shield is all that the wrapped semi-conductive adhesive that adds of employing semi-conductive tape extrudes and forms with metal screen layer.

A kind of ship power cable the most according to claim 1, it is characterised in that: described insulating barrier uses the rubber material of high specific insulation to extrude and forms.

A kind of ship power cable the most according to claim 1, it is characterised in that: described metal screen layer uses dacron thread to form with tinned copper wire combined knitting.

A kind of ship power cable the most according to claim 1, it is characterised in that: described restrictive coating uses one layer of vulcanization type low smoke halogen-free flame-retardant polyolefin to extrude and forms.