CN201689726U

CN201689726U - Light halogen-free cable for ships

Info

Publication number: CN201689726U
Application number: CN 201020168251
Authority: CN
Inventors: 陆云春; 李永江; 周勇伟; 季磊
Original assignee: Jiangsu Yuanyang Dongze Cable Co Ltd
Current assignee: Jiangsu Yuanyang Dongze Cable Co Ltd
Priority date: 2010-04-23
Filing date: 2010-04-23
Publication date: 2010-12-29
Anticipated expiration: 2020-04-23

Abstract

The utility model discloses a light halogen-free cable for ships, belongs to the field of cables, and aims to resolve problems of large outer diameter and heavy weight of cables. A crosslinked polyethylene insulation layer of the cable is covered outside a stranded copper conductor to form insulation cores, the insulation cores are stranded to form a core bundle, halogen-free foaming materials are filled in clearances of the core bundle, a mica tape lapped covering is disposed on the periphery of the core bundle, the thickness of a lapping tape of the mica tape lapped covering ranges from 0.12mm to 0.14mm, and lap wrapping rate thereof is 25% to 30%. An aluminum alloy wire braided armor layer is arranged outside the mica tape lapped covering, and a crosslinked polyethylene outer sheath is extruded outside the aluminum alloy wire braided armor layer. On the premise of meeting relative standard specified properties, weight ratio of the cable is reduced by 30% to 40% and outer diameter of the cable is reduced by 3mm to 5mm compared with a common cable with the same specification, and then the light halogen-free cable can be mounted and laid in limited space of a ship more conveniently.

Description

Marine light Halogen cable

Technical field

The utility model relates to a kind of power cable, particularly a kind of marine light Halogen cable.

Background technology

The structure of cable is generally insulating barrier and covers twisted copper conductors and form insulated wire cores outward, the stranded formation core of split conductor core bundle, and the core bundle coats oversheath outward.For guaranteeing its performance, common cable often adopts thicker insulating barrier and restrictive coating, and armour adopts the copper wire braiding, therefore the overall dimension of common cable is big, the installation that is not suitable for the naval vessel confined space is laid, and the Heavy Weight of common cable, makes troubles also for the use on the naval vessel.

The utility model content

Size in the prior art is big in order to solve, the problem of Heavy Weight, and the utility model provides a kind of marine light Halogen cable, and not only superior performance, and external diameter is little, in light weight.

For solving above technical problem, a kind of marine light Halogen cable provided by the utility model, crosslinked polyetylene insulated layer covers twisted copper conductors and forms insulated wire cores outward, the stranded formation core of the described insulated wire cores of multiply bundle, the gap of described core bundle is filled with the Halogen expanded material, its periphery is provided with the mica tape lapping layer, and described mica tape lapping layer is provided with aluminum-alloy wire braiding armour outward, and described aluminum-alloy wire braiding armour is extruded with the cross-linked polyolefin oversheath outward.

With respect to prior art, the utility model has been obtained following beneficial effect: the insulating barrier of cable adopts crosslinked polyethylene, and density is about 0.92g/cm ³, the insulation resistance constant is not less than 6000M Ω km in the time of 20 ℃, and aging preceding tensile strength minimum is 14.5N/mm ², the elongation at break minimum is 260%. for the conductor of same specification, and insulation thickness can reduce 0.2～0.4mm, and insulation weight can reduce about 10%; The insulated wire cores stranding adopts the Halogen expanded material to fill, and can guarantee stranding cable core rounding, reduces the use of sheath material, reduces cable weight; The insulated wire cores stranding adopts mica tape wrapped, in the category-A bunchy fire resistance that reduces to guarantee under the prerequisite of the outside diameter of cable naval vessel cable; The wrapped outer aluminum-alloy wire braiding armouring that adopts of mica tape is because aluminum-alloy wire density only is 2.7g/cm ³, it can reduce cable weight about 8% same specification cable, and can guarantee the mechanical protection of cable under abominable operating environment; Adopt low-density high flame retardant low smoke, zero halogen cross-linked polyolefin as oversheath, its density is 1.2～1.3g/cm ³, make the comparable common cable of weight of sheath reduce 7%; This cable makes the common cable of the equal specification of weight ratio of cable reduce 30%～40% under the prerequisite that satisfies the correlation standard performance, and external diameter reduces 3～5mm, and the installation of the naval vessel confined space of being more convenient for is laid.

As preferred version of the present utility model, the band thickness of described mica tape lapping layer is 0.12～0.14mm, and the rate of putting up is 25%～30%.

Description of drawings

Fig. 1 is the structural representation of the utility model marine light Halogen cable.

Among the figure: 1 twisted copper conductors, 2 crosslinked polyetylene insulated layers, 3 Halogen foamed material layers, 4 mica tape lapping layers, 5 aluminum-alloy wire braids, 6 cross-linked polyolefin oversheaths.

Embodiment

As shown in Figure 1, marine light Halogen cable provided by the utility model, crosslinked polyetylene insulated layer 2 covers the twisted copper conductors 1 outer insulated wire cores that forms, the stranded formation core of split conductor core bundle, the gap of core bundle is filled with Halogen expanded material 3, and its periphery is provided with mica tape lapping layer 4, adopts the single face mica tape wrapped, the band thickness of mica tape lapping layer is 0.12～0.14mm, and the rate of putting up is 25%～30%.The mica tape lapping layer 4 outer aluminum-alloy wire braiding armours 5 that are provided with, aluminum-alloy wire braiding armour is extruded with cross-linked polyolefin oversheath 6 outward, oversheath adopts tubular molding tool to extrude, can effectively control off-centre, make each several part thickness even relatively, satisfying under the prerequisite of standard-required, jacket thickness is less relatively, and consumptive material is less.

In addition to the implementation, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of the utility model requirement.

Claims

1. marine light Halogen cable, it is characterized in that, crosslinked polyetylene insulated layer covers twisted copper conductors and forms insulated wire cores outward, the stranded formation core of the described insulated wire cores of multiply bundle, the gap of described core bundle is filled with the Halogen expanded material, its periphery is provided with the mica tape lapping layer, and described mica tape lapping layer is provided with aluminum-alloy wire braiding armour outward, and described aluminum-alloy wire braiding armour is extruded with the cross-linked polyolefin oversheath outward.

2. marine light Halogen cable according to claim 1 is characterized in that the band thickness of described mica tape lapping layer is 0.12～0.14mm, and the rate of putting up is 25%～30%.