CN201655402U

CN201655402U - High-voltage cable of horizontal water seal in use of watercrafts and ocean engineering

Info

Publication number: CN201655402U
Application number: CN 201020174834
Authority: CN
Inventors: 陆云春; 李永江
Original assignee: Jiangsu Yuanyang Dongze Cable Co Ltd
Current assignee: Jiangsu Yuanyang Dongze Cable Co Ltd
Priority date: 2010-04-29
Filing date: 2010-04-29
Publication date: 2010-11-24
Anticipated expiration: 2020-04-29

Abstract

The utility model discloses a high-voltage cable of horizontal water seal in use of watercrafts and ocean engineering in the field of power cables, aiming to solve the problem of bad water seal property of cables. The periphery of each phase line stranded copper conductor of the cable is orderly coved with a semi-conductive conductor shielding layer, an insulation layer, a semi-conductive electric insulated shielding layer and a metal split-phase shielding layer. Three insulation cores are stranded together to form a three-phase cable; gaps among the three insulation cores are filled with non-hygroscopic swelling and moisture water resistant yarn stuffing; the periphery of the cable is orderly covered with a swelling and moisture water resistant band tapped inner covering, a polyolefin inner protective sleeve, a swelling and moisture water resistant band tapped middle covering, a metallic armor layer, a swelling and moisture water resistant band tapped external covering and a mud resistant cross-linked polyolefin inner protective sleeve. The cable has the characteristics of good horizontal water seal property and anti-mud, anti-greasy dirt and anti-sea water corrosion performances, and can be applied to environment of ocean engineering with much greasy dirt.

Description

Boats and ships and ocean engineering are with horizontal water-stop medium and high voltage cable

Technical field

The utility model relates to a kind of power cable, and particularly a kind of boats and ships and ocean engineering are with horizontal water-stop medium and high voltage cable.

Background technology

Because boats and ships need contact water for a long time with ocean engineering is local, supporting with it cable also needs long period of soaking in water, it is aging that this makes that cable needs to bear certain hydraulic pressure acceleration cable on lateral orientation, especially the environment of the dirty corrosion of ocean engineering heavy wool of living in is if the cable jacket accelerated ageing is easy to influence the performance of cable.

On August 31st, 2005, publication number is the Chinese invention patent of CN 1661731, a kind of cable with water-stop characteristic is disclosed, the metal monofilament that comprises restrictive coating, the outer band of cable core or woven protective layer water blocking layer, the gap water blocking layer of insulating core stranding, conductor external insulation layer, the outer band water blocking layer of conductor, stranded conductor internal clearance water blocking layer, composition stranded conductor, the gap of stranded conductor internal clearance and insulating core stranding is to fill and form water blocking layer by sealant, and outer band of cable core or woven protective layer and the outer band of conductor are to be applied by sealant to form water blocking layer; Described sealant dispensing component includes with the parts by weight statement; 100 parts of main gels, 10～50 parts of tackifying resins, 1～3 part of vulcanizing agent, compounding aid 1～5, fire retardant 30～100.The longitudinally water blocking better performances of this cable, but laterally water sealing property is bad.

The utility model content

For overcoming problems of the prior art, the utility model provides a kind of boats and ships and ocean engineering with horizontal water-stop medium and high voltage cable, and laterally water sealing property is superior, can long-term work under water.

For solving above technical problem, a kind of boats and ships provided by the utility model and ocean engineering are with horizontal water-stop medium and high voltage cable, three thoroughly do away with the stranded back of edge core constitutes cable, three gaps of thoroughly doing away with the edge core are filled with non-hygroscopic swelling water blocking yarn inserts, the periphery of described cable is surrounded with lapping layer in the swelling waterstop, lapping layer is extruded with the polyolefin inner sheath outward in the described swelling waterstop, described polyolefin inner sheath is surrounded with lapping layer in the swelling waterstop outward, lapping layer is provided with the metal armouring layer outward in the described swelling waterstop, described metal armouring layer is surrounded with the outer lapping layer of swelling waterstop outward, and the outer lapping layer of described swelling waterstop is extruded with the cross-linked polyolefin of anti-mud oversheath outward.

With respect to prior art, the utility model has been obtained following beneficial effect: this cable is filled with non-hygroscopic swelling water blocking yarn inserts in three gaps of thoroughly doing away with the edge core, is surrounded with the horizontal water sealing property that three layers of swelling waterstop can be guaranteed cable behind the stranding; The metal armouring layer can guarantee the mechanical performance of cable, behind the outer lapping layer of the outer wrapped swelling waterstop of metal armouring layer, forms airtight fully water and isolates, and prevents that armouring from reacting, and reduces mechanical performance; Outermost is extruded with the cross-linked polyolefin of anti-mud oversheath.

As preferred version of the present utility model, described insulated wire cores comprises the phase line twisted copper conductors, the periphery of described phase line twisted copper conductors is coated with the semiconductive conductor shield, described semiconductive conductor shield is coated with insulating barrier, described insulating barrier is coated with the semiconductive insulation screen, and described semiconductive insulation screen is coated with metal phase-splitting screen.

As preferred version of the present utility model, the wrapped rate of putting up of lapping layer is 25%～30% in the described swelling waterstop.

As preferred version of the present utility model, described metal armouring layer is a tincopper fuse wire braided armor, adopts two times braidings on two, and count is 82%～90%.

As preferred version of the present utility model, described metal armouring layer is zinc-plated copper strips braid, adopts two times braidings on two, and count is 82%～90%.

As preferred version of the present utility model, the wrapped rate of putting up of the outer lapping layer of described swelling waterstop is 25%～30%.

Description of drawings

Fig. 1 is boats and ships and the ocean engineering structural representation with horizontal water-stop medium and high voltage cable.

Among the figure: lapping layer, 10 metal armouring layers, the outer lapping layer of 11 swelling waterstops, 12 cross-linked polyolefin of anti-mud oversheaths in 1 phase line twisted copper conductors, 2 semiconductive conductor shields, 3 insulating barriers, 4 semiconductive insulation screens, 5 metal phase-splitting screens, 6 non-hygroscopic swelling water blocking yarn inserts, the interior lapping layer of 7 swelling waterstops, 8 polyolefin inner sheaths, the 9 swelling waterstops.

Embodiment

As shown in Figure 1, boats and ships of the present utility model and ocean engineering are with horizontal water-stop medium and high voltage cable, every phase line twisted copper conductors 1 forms by thin copper wire is stranded, the periphery of phase line twisted copper conductors 1 is coated with semiconductive conductor shield 2, semiconductive conductor shield 2 is coated with insulating barrier 3, insulating barrier 3 is coated with semiconductive insulation screen 4, and semiconductive insulation screen 4 is coated with metal phase-splitting screen 5.Three thoroughly do away with the stranded back of edge core constitutes the three-phase cable, and three gaps of thoroughly doing away with the edge core are filled with non-hygroscopic swelling water blocking yarn inserts 6, and the periphery of cable is surrounded with lapping layer 7 in the swelling waterstop, and the wrapped rate of putting up is 25%～30%; The lapping layer 7 outer polyolefin inner sheaths 8 that are extruded with in the swelling waterstop, be surrounded with lapping layer 9 in the swelling waterstop outside the polyolefin inner sheath 8, the lapping layer 9 outer metal armouring layers 10 that are provided with in the swelling waterstop, metal armouring layer 10 can adopt tincopper fuse wire braided armor or zinc-plated copper strips braid, adopt two times braidings on two, count is 82%～90%; The metal armouring layer 10 outer outer lapping layer 11 of swelling waterstop that is surrounded with, the wrapped rate of putting up is 25%～30%; Be extruded with the cross-linked polyolefin of anti-mud oversheath 12 outside the outer lapping layer 11 of swelling waterstop, form airtight skin, have the characteristic of anti-mud, oil resistant dirt, seawater corrosion resistance.

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. boats and ships and ocean engineering are with horizontal water-stop medium and high voltage cable, it is characterized in that, three thoroughly do away with the stranded back of edge core constitutes cable, three gaps of thoroughly doing away with the edge core are filled with non-hygroscopic swelling water blocking yarn inserts, the periphery of described cable is surrounded with lapping layer in the swelling waterstop, lapping layer is extruded with the polyolefin inner sheath outward in the described swelling waterstop, described polyolefin inner sheath is surrounded with lapping layer in the swelling waterstop outward, lapping layer is provided with the metal armouring layer outward in the described swelling waterstop, described metal armouring layer is surrounded with the outer lapping layer of swelling waterstop outward, and the outer lapping layer of described swelling waterstop is extruded with the cross-linked polyolefin of anti-mud oversheath outward.

2. boats and ships according to claim 1 and ocean engineering are with horizontal water-stop medium and high voltage cable, it is characterized in that, described insulated wire cores comprises the phase line twisted copper conductors, the periphery of described phase line twisted copper conductors is coated with the semiconductive conductor shield, described semiconductive conductor shield is coated with insulating barrier, described insulating barrier is coated with the semiconductive insulation screen, and described semiconductive insulation screen is coated with metal phase-splitting screen.

3. boats and ships according to claim 1 and 2 and ocean engineering is characterized in that with horizontal water-stop medium and high voltage cable the wrapped rate of putting up of lapping layer is 25%～30% in the described swelling waterstop.

4. boats and ships according to claim 1 and 2 and ocean engineering is characterized in that with horizontal water-stop medium and high voltage cable described metal armouring layer is a tincopper fuse wire braided armor, adopt two times braidings on two, and count is 82%～90%.

5. boats and ships according to claim 1 and 2 and ocean engineering is characterized in that with horizontal water-stop medium and high voltage cable described metal armouring layer is zinc-plated copper strips braid, adopt two times braidings on two, and count is 82%～90%.

6. boats and ships according to claim 1 and 2 and ocean engineering is characterized in that with horizontal water-stop medium and high voltage cable the wrapped rate of putting up of the outer lapping layer of described swelling waterstop is 25%～30%.