CN201374221Y

CN201374221Y - Fire-proof frequency conversion cable for ship of 3kV and below 3kV

Info

Publication number: CN201374221Y
Application number: CN200920142257U
Authority: CN
Inventors: 余纪炎; 徐华胜
Original assignee: KAIKAI CABLE TECHNOLOGY Co Ltd
Current assignee: KAIKAI CABLE TECHNOLOGY Co Ltd
Priority date: 2009-03-30
Filing date: 2009-03-30
Publication date: 2009-12-30
Anticipated expiration: 2019-03-30

Abstract

The utility model belongs to the wire cable technical field, relates to a fire-proof frequency conversion cable for ship of 3kV and below 3kV. A layer of mica tape is lapped on a single conductor and an insulation layer is extruded on the mica tape and then an insulation screen layer is lapped on the mica tape to form one single wire core and filler is filled between the two or more than two wire cores and a lapping layer is lapped on the periphery of the filler and a weaving layer is weaved on the lapping layer and an outer sheath is lapped on the weaving layer and the conductor is tinned copper wire conductor. The insulation layer is formed by injection molding of cross-linked polyethylene and the insulation screen is formed by aluminum plastic belt material and the filler is dust-free rock-wool rope and the lapping layer is formed by the low-smoke halogen-free low-toxicity fire retardation belt material and the fire retardation belt is glass fiber thread belt and the weaving layer is formed by weaving zinc coated wire and the outer sheathe is formed by the low-smoke halogen-free low-toxicity fire retardation cross-linked polyolefin material.

Description

The fire-resistant frequency-changing cable of 3kV and following naval vessel

Technical field

The utility model belongs to technical field of electric wires and cables, refers in particular to the fire-resistant frequency-changing cable of a kind of 3kV and following naval vessel.

Background technology

Present stage, the structure of the general frequency-changing cable that uses is extruded insulation and a lapped insulation shielding composition core on single copper conductor on the naval vessel, fill filler in the periphery, at the peripheral wrapped lapping layer of filler, weave the copper wire braid and extrude oversheath, insulation is crosslinked polyetylene insulated or rubber-covered, sheath is polyolefin jacket or rubber sheath, the permission minimum bend inside radius of cable is 8 times the outside diameter of cable when laying, the space that requires is big, has brought many inconvenience and trouble, insulation and sheath non-refractory for the design on naval vessel and construction, and the general mica tape of no use of this type of cable is wrapped on conductor, does not play fire-resistant effect; Braid is ordinary steel wire braiding, and tension, compression strength are little, and useful life is short, and this frequency-changing cable can not satisfy the needs of growing Ship System high-frequency frequency conversion equipment.

Summary of the invention

The purpose of this utility model provides that a kind of fire resistance height, high temperature resistant, good electric property, tension, compressive property are strong, long service life, lay bending radius little, be convenient to install and lay and can save a large amount of naval vessels usage space, be applicable to the fire-resistant frequency-changing cable of rated voltage 3kV and following naval vessel of high-frequency current.

The purpose of this utility model is achieved in that

The fire-resistant frequency-changing cable of 3kV and following naval vessel, it is characterized in that: be at the wrapped one deck mica tape of the outer surface of single conductor, extrude a layer insulating successively and one deck lapped insulation screen is formed single core at the outer surface of mica tape, between two or two above cores, fill inserts, at the wrapped one deck lapping layer of inserts outer surface, outside lapping layer, weave one deck braid, outside braid, extrude one deck oversheath.

Above-mentioned conductor is the tinned copper wire conductor.

Above-mentioned insulating barrier is injection molded through 125 ℃ of cross-linking radiations with crosslinked polyethylene.

Above-mentioned insulation screen aluminium plastic composite strip material forms.

Above-mentioned inserts is dustless mineral wool rope.

Above-mentioned lapping layer is the low smoke, zero halogen low-poison and combustion-resisting band made from glass fiber.

Above-mentioned braid is to form with the zinc-coated wire braiding.

Above-mentioned oversheath is formed by low smoke, zero halogen low-poison and combustion-resisting cross-linked polyolefin material.

The outstanding compared to existing technology advantage of the utility model is: because the utility model adopts braiding zinc-coated wire braid; make cable itself have the effect of electromagnetic radiation shielding; this frequency-changing cable be can be used in the higher circuit of frequency; because of even frequency wherein can be cancelled out each other; the odd frequency can rely on the symmetry of cable to eliminate; and clutter can rely on screen to eliminate; can also fully eliminate the interference of outer bound pair cable; this all makes this cable electrical performance and useful life all be improved; it is 4 times the outside diameter of cable that insulation adopts the flexibility material can make cable allow the minimum bend inside radius when laying; can save a large amount of naval vessel usage spaces; wrapped mica tape lapping layer on conductor; has fire-resistant effect; braid has mechanical protection with the zinc-coated wire braiding; tension; resistance to compression, this cable also have the characteristics of low smoke, zero halogen low-poison and combustion-resisting.

Description of drawings

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

Embodiment

The utility model is further described with specific embodiment below in conjunction with accompanying drawing, referring to Fig. 1:

The fire-resistant frequency-changing cable of 3kV and following naval vessel, be at the wrapped one deck mica tape 20 of the outer surface of single conductor 10, outer surface at mica tape 20 extrudes a layer insulating 30 and the single core of one deck lapped insulation screen 40 compositions successively, between two or two above cores, fill inserts 50, at the wrapped one deck lapping layer 60 of inserts 50 outer surfaces, braiding one deck braid 70 extrudes one deck oversheath 80 outside braid 70 outside lapping layer 60.

Above-mentioned conductor 10 is tinned copper wire conductors.

Above-mentioned insulating barrier 30 usefulness crosslinked polyethylenes (XLPE) are injection molded through 125 ℃ of cross-linking radiations.

Above-mentioned insulation screen 40 aluminium plastic composite strip material form.

Above-mentioned inserts 50 is dustless mineral wool ropes.

Above-mentioned lapping layer 60 is low smoke, zero halogen low-poison and combustion-resisting bands made from glass fiber.

Above-mentioned braid 70 is to form with the zinc-coated wire braiding.

Above-mentioned oversheath 80 is formed by low smoke, zero halogen low-poison and combustion-resisting cross-linked polyolefin material.

The foregoing description only is one of preferred embodiment of the present utility model; be not to limit protection range of the present utility model according to this; so: all equivalences of doing according to structure of the present utility model, shape, principle change, and all should be covered by within the protection range of the present utility model.

Claims

1, the fire-resistant frequency-changing cable of 3kV and following naval vessel, it is characterized in that: be at the wrapped one deck mica tape of the outer surface of single conductor, extrude a layer insulating successively and one deck lapped insulation screen is formed single core at the outer surface of mica tape, between two or two above cores, fill inserts, at the wrapped one deck lapping layer of inserts outer surface, outside lapping layer, weave one deck braid, outside braid, extrude one deck oversheath.

2, the fire-resistant frequency-changing cable of 3kV according to claim 1 and following naval vessel, it is characterized in that: described conductor is the tinned copper wire conductor.

3, the fire-resistant frequency-changing cable of 3kV according to claim 1 and following naval vessel is characterized in that: described insulating barrier is injection molded through 125 ℃ of cross-linking radiations with crosslinked polyethylene.

4, the fire-resistant frequency-changing cable of 3kV according to claim 1 and following naval vessel is characterized in that: described insulation screen aluminium plastic composite strip material forms.

5, the fire-resistant frequency-changing cable of 3kV according to claim 1 and following naval vessel, it is characterized in that: described inserts is dustless mineral wool rope.

6, the fire-resistant frequency-changing cable of 3kV according to claim 1 and following naval vessel is characterized in that: described lapping layer is the low smoke, zero halogen low-poison and combustion-resisting band made from glass fiber.

7, the fire-resistant frequency-changing cable of 3kV according to claim 1 and following naval vessel is characterized in that: described braid is to form with the zinc-coated wire braiding.

8, the fire-resistant frequency-changing cable of 3kV according to claim 1 and following naval vessel is characterized in that: described oversheath is formed by low smoke, zero halogen low-poison and combustion-resisting cross-linked polyolefin material.