CN201927409U

CN201927409U - High-voltage ship power cable

Info

Publication number: CN201927409U
Application number: CN201020596360XU
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: 2010-11-09
Filing date: 2010-11-09
Publication date: 2011-08-10
Anticipated expiration: 2020-11-09

Abstract

The utility model particularly relates to a high-voltage cross-linked polyethylene insulating ship power cable. The high-voltage ship power cable is a three-wire core cable and consists of a cable core and an insulation protective layer, wherein the cable core is formed by twisting three insulating wire cores; the section of the cable core is in a close-triangle form; the outer side of each insulating wire core is formed into the circular cable core through a filling layer; a conductor of each insulating wire core is a circular pressing tin copper conductor; and the outer layer of the conductor is sequentially provided with a conductor shielding layer, a polyethylene insulating layer, an insulating shielding layer and a metal shielding layer. The high-voltage ship power cable has the benefits that: the conductor shielding layer, the three layer design of the cross-linked polyethylene insulating layer and the insulating shielding layer is adopted to adapt to co-extrusion technology, the cross-linked temperature is lowered to ensure that the tin copper conductor is not damaged in the cross-linked process, and the extrusion speed is optimized to achieve the optimum effect. A metal weave armored layer is arranged so as to meet the paving requirement of the high-voltage ship power cable.

Description

A kind of high pressure ship power cable

Technical field

The utility model relates to the power transmitting device field.Be high-voltage cross-linking polythene insulation ship power cable specifically.

Background technology

Must adopt circular compact wire with uniform electric field 3.6/6kV reach the mesohigh power cable with cross-linked polyethylene insulation conductor of above voltage, improve the insulation quality of cable.Circle is pressed the tin-coated copper conductor and damage the tin layer easily when being pressed, in addition, the insulation of mesohigh power cable with cross-linked polyethylene insulation is to adopt the peroxide heat cross-linking, its crosslinking temperature is usually at 350 ~ 400 ℃, therefore and the fusing point of tin is 230 ~ 250 ℃, does not adopt during the high-voltage cross-linking polythene insulated power cable aborning to press circle and press the tin-coated copper conductor.Ship power cable mainly uses in occasions such as boats and ships and oil platforms, is subjected to the influence of ocean climate, and the customer requirements conductor is zinc-plated to improve the corrosion resistance of conductor.1kV and following ship power cable do not need compact wire (can use non-compact wire) because do not need high-temperature cross-linking, can adopt the non-circle of pressing to press the tin-coated copper conductor to satisfy user's needs fully.Along with the development of shipping industry and the exploitation energetically of ocean engineering, facility such as boats and ships and offshore oil platform electric power is increasing, voltage is also more and more higher, 8.7/10kV and the use of above ship power cable is more and more, the circular high-voltage cross-linking polythene insulation ship power cable that presses the tin-coated copper conductor of exploitation seems very important to satisfy user's needs.

Summary of the invention

Using in facilities such as boats and ships and offshore oil platform of 8.7/10kV power cable with cross-linked polyethylene insulation needs and the deficiency of existence in order to solve, and redesigns according to the structure of its handling characteristics to cable.

A kind of high pressure ship power cable is three core cables, is made up of cable core and insulating protective layer; Described cable core is the stranded moulding of three eradication edge cores, and the cross section is the setting of " product " font, and the outside of described insulated wire cores forms circular cable core by packed layer; The conductor of described insulated wire cores is that circle is pressed tin-coated copper conductor 1, and the skin of conductor is provided with conductor shield 2, polyethylene layer 3, insulation screen 4 and metal screen layer 5 successively.

Described insulating protective layer is a three-decker; Innermost layer is a low smoke and zero halogen inner sheath 8, and the intermediate layer is a metal base transistor layer 9, and skin is a low-smoke non-halogen flame-retardant cross-linking radiation polyolefin oversheath 10.

The metal base transistor layer 9 of described insulating protective layer adopts tinned copper wire or zinc-coated wire.

Useful technique effect of the present utility model is:

1, conductor adopts circle to press the tin-coated copper conductor, adopts the nano polycrystal mould that circle is pressed the tin-coated copper conductor and presses, to avoid damaging the tin layer.

2, adopt conductor screen, crosslinked polyetylene insulated, three layers of design of insulation shielding, the cross-linking tube temperature is controlled at 250 ~ 300 ℃, making circle press the tin-coated copper conductor can not be impaired in cross-linking process, and extruded velocity is optimized design to reach optimum efficiency to adapt to the coextrusion process needs.

3, the virgin metal armour changes the metal base transistor layer into to adapt to the needs that lay of ship power cable.

4, oversheath adopts oil resistance and the resistance to cracking of low-smoke non-halogen flame-retardant cross-linking radiation polyolefin to improve cable.

Description of drawings

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

Last figure mark: 1, circle is pressed the tin-coated copper conductor, 2, conductor shield, 3, polyethylene layer, 4, insulation screen, 5, metal screen layer, 6, packed layer, 7, twining package tape, 8, low smoke and zero halogen inner sheath, 9, the metal base transistor layer, 10, low-smoke non-halogen flame-retardant cross-linking radiation polyolefin oversheath.

Embodiment

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

Embodiment: referring to Fig. 1, the cross-sectional view of cable, a kind of high pressure ship power cable is that three core cables comprise by cable core and insulating protective layer and forming; Described cable core is the stranded moulding of three eradication edge cores, and the cross section is the setting of " product " font, and the outside of described insulated wire cores forms circular cable core by packed layer 6; The cable core skin is wrapped in twining package tape 7.The conductor of described insulated wire cores is that circle is pressed tin-coated copper conductor 1, circle press the tin-coated copper conductor be by many tinned wirds through stranded press circular.The skin of conductor is provided with conductor shield 2, polyethylene layer 3, insulation screen 4 and metal screen layer 5 successively.

Described insulating protective layer is a three-decker; Innermost layer is a low smoke and zero halogen inner sheath 8, and the intermediate layer is for adopting zinc-coated wire braiding armour 9; Skin is a low-smoke non-halogen flame-retardant cross-linking radiation polyolefin oversheath 10.

Claims

1. high pressure ship power cable, described a kind of high pressure ship power cable is three core cables, comprises cable core and insulating protective layer; Described cable core is the stranded moulding of three eradication edge cores, and the cross section is the setting of " product " font, and the outside of described insulated wire cores forms circular cable core by packed layer; It is characterized in that: the conductor of described insulated wire cores is that circle is pressed tin-coated copper conductor (1), and the skin of conductor is provided with conductor shield (2), polyethylene layer (3), insulation screen (4) and metal screen layer (5) successively.

2. a kind of high pressure ship power cable according to claim 1 is characterized in that: described insulating protective layer is a three-decker; Innermost layer is low smoke and zero halogen inner sheath (8), and the intermediate layer is metal base transistor layer (9), and skin is a low-smoke non-halogen flame-retardant cross-linking radiation polyolefin oversheath (10).

3. a kind of high pressure ship power cable according to claim 2 is characterized in that: the metal base transistor layer (9) of described insulating protective layer adopts tinned copper wire or zinc-coated wire.