CN202058493U

CN202058493U - Marine 0.6/1kv frequency conversion cable

Info

Publication number: CN202058493U
Application number: CN2010206340729U
Authority: CN
Inventors: 邓九旺; 叶明竹; 祝永林
Original assignee: Anhui Huayu Cable Group Co Ltd
Current assignee: Anhui Huayu Cable Group Co Ltd
Priority date: 2010-12-01
Filing date: 2010-12-01
Publication date: 2011-11-30
Anticipated expiration: 2020-12-01

Abstract

The utility model specifically relates to a marine hidden power cable. The marine 0.6/1kv frequency conversion cable comprises a cable core and a protective coating, wherein the cable core is formed by intertwisting three major insulation cores and three neutral insulation cores into a circular shape; The major insulation cores are composed of a major core conductor, a polyethylene insulating layer, and a tin-coated copper filament woven shield; and the major insulation cores and the neutral insulation cores are in a cross arrangement and form a circular cable core by filling. The protective coating is composed of three layers and a galvanizing steel wire braiding armor is arranged between a low-smoke halogen free inner sheath and a low-smoke halogen free outer sheath. The utility model has the advantage that: the neutral core, divided into three parts, is placed between three major cores, thus to make three major cores symmetrically distributed for improving power supply quality. The major insulation core is externally provided with the tin-coated copper filament woven shield and the galvanizing steel wire braiding armor of the protective coating, thereby meeting the requirement of being armoured when the cable is laid in ship and preventing the leakage of electromagnetic field affecting other precise instrument.

Description

A kind of 0.6/1kV frequency-changing cable peculiar to vessel

Technical field

The utility model relates to the power transmitting device field.Be a kind of ship up-conversion major loop power cable specifically.

Background technology

Fast development along with shipping industry, ship is made bigger and bigger, use big-power transducer and variable-frequency motor and various precision instrument aboard ship in a large number, the major loop power cable that connects frequency converter or variable-frequency motor produces square wave and high order harmonic component in the process of electric energy transmitting, thereby influences other precision instrument operate as normal.For fear of the influence to other precision instrument of square wave and high order harmonic component, the square wave and the high order harmonic component that just require power cable to produce when electric energy transmitting can not leak, and traditional ship power cable can't be accomplished this point.

The utility model content

Do not leak in order to solve square wave and the high order harmonic component that ship power cable produces when the electric energy transmitting.Therefore the construction of cable is redesigned, make it satisfy the instructions for use of ship up-conversion major loop.The New Marine frequency-changing cable is specially for 0.6/1kV on the ship and with the private cable of down-conversion loop electric energy transmitting.

A kind of 0.6/1kV frequency-changing cable peculiar to vessel comprises cable core and overcoat; Described cable core is that three main insulation cores and three neutral insulated wire cores are twisted into round, described main insulation core is made up of master core conductor 1, the crosslinked polyetylene insulated layer 3 of master core insulation and tinned copper wire woven shield 4, described neutral insulated wire cores is made up of neutral line core conductor 2 and the crosslinked polyetylene insulated layer 9 of neutral line core insulation, main insulation core and neutral insulated wire cores cross arrangement, the main insulation core is symmetrically distributed, and the outer tinned copper wire woven shield that is provided with of master core insulation, and by filling the circular cable core of formation.

Described overcoat is a three-decker, is provided with zinc-coated wire braiding armour 7 between low smoke and zero halogen inner sheath 6 and low smoke and zero halogen oversheath 8.

Useful technique effect of the present utility model is:

1. change the 3+1 structure into the 3+3 structure, be about to neutral core one and be divided into three and be placed between three master cores, the three-phase master core is symmetrically distributed to improve power supply quality as 3*120+1*70 being changed into 3*120+3*25.

2. the main insulation core is set up one deck tinned copper wire braid shielded outward, makes that electric field does not leak in the power supply process.

3. outside the low smoke and zero halogen inner sheath, once established one deck zinc-coated wire braiding armour, the needs of armouring when both having satisfied shipboard cable and aboard ship laying, do not leaked in magnetic field, square wave and high order harmonic component that frequency converter or variable-frequency motor are produced when work are controlled at cable inside, reduce the influence to outside precision instrument.

Description of drawings

Fig. 1 is a cross sectional representation of the present utility model.

Reference numeral: 1, master core conductor, 2, neutral line core conductor, 3, the crosslinked polyetylene insulated layer of master core insulation, 4, tinned copper wire woven shield, 5, belting layer, 6, the low smoke and zero halogen inner sheath, 7, zinc-coated wire braiding armour, 8, low smoke and zero halogen oversheath, 9, the crosslinked polyetylene insulated layer of neutral line core insulation.

Embodiment

The utility model is described in further detail to reach concrete enforcement below in conjunction with accompanying drawing.

Embodiment: referring to Fig. 1, a kind of 0.6/1kV frequency-changing cable peculiar to vessel comprises cable core and overcoat; Described cable core is that three main insulation cores and three neutral insulated wire cores are twisted into round; Described main insulation core is made up of master core conductor 1, the crosslinked polyetylene insulated layer 3 of master core insulation and tinned copper wire woven shield 4, described neutral insulated wire cores is made up of neutral line core conductor 2 and the crosslinked polyetylene insulated layer 9 of neutral line core insulation, main insulation core and neutral insulated wire cores cross arrangement, the main insulation core is symmetrically distributed, and the outer tinned copper wire woven shield that is provided with of master core insulation, and by filling the circular cable core of formation, cable core is surrounded by belting layer 5 outward.

Claims

1. a 0.6/1kV frequency-changing cable peculiar to vessel comprises cable core and overcoat; Described cable core is that three main insulation cores and three neutral insulated wire cores are twisted into round, described main insulation core is made up of master core conductor (1), the crosslinked polyetylene insulated layer of master core insulation (3) and tinned copper wire woven shield (4), described neutral insulated wire cores is made up of neutral line core conductor (2) and the crosslinked polyetylene insulated layer of neutral line core insulation (9), main insulation core and neutral insulated wire cores cross arrangement, it is characterized in that: the main insulation core is symmetrically distributed, and the outer tinned copper wire woven shield that is provided with of master core insulation, and by filling the circular cable core of formation.

2. a kind of 0.6/1kV frequency-changing cable peculiar to vessel according to claim 1, it is characterized in that: described overcoat is a three-decker, is provided with zinc-coated wire braiding armour (7) between low smoke and zero halogen inner sheath (6) and low smoke and zero halogen oversheath (8).