F4PI and F4 raw material tape lapped insulated cable

Abstract

The utility model provides an F4PI and F4 raw material tape lapped insulated cable. The F4PI and F4 raw material tape lapped insulated cable comprises a conductor, and is characterized in that an insulating layer is mounted on the outer layer of the conductor, a shielding layer is mounted on the outer layer of the insulating layer, and a sheath layer is mounted on the outer layer of the shielding layer. The conductor is made of the silver-plated round copper wires and the nickel-plated round copper wires, so that the conductor has excellent electrical performance, the conductor is resistant to high temperature and has no breakdown phenomenon in a voltage withstand test, and the insulating layer is wrapped in a single layer or a plurality of layers, so that the insulating layer has good insulativity and is easy to strip.

Description

TECHNICAL FIELD

[0001] The utility model belongs to cable technical field especially relates to a F4PI and F4 raw material tape winding insulation cable. BACKGROUND

[0002] Cable is a kind of electric energy or signal transmission device, cable is made of one or more mutually insulated conductors and outer insulation protective layer, for the wire for transmitting electric power or information from one place to another, it is usually by several or several groups of wires (at least two in each group) stranded like rope cable, each group of wire is mutually insulated, and it is often twisted around a center, the whole outside is covered with highly insulated covering layer, cable as the important device of electric energy or signal transmission, plays a vital role in modern society, understand the composition, type, characteristic and application of cable and selection and use method, it is of great significance to ensure the safe and stable operation of power system. SUMMARY

[0003] The utility model discloses a kind of F4PI and F4 raw material tape winding insulation cable.

[0004] To solve the above problems, the utility model provides a kind of F4PI and F4 raw material tape winding insulation cable, including conductor, characterized by: the outer layer of the conductor is equipped with insulation layer, the outer layer of the insulation layer is equipped with shielding layer, the outer layer of the shielding layer is equipped with sheath layer, the conductor is generally made of silver-plated round copper wire and nickel-plated round copper wire, concentric stranding mode is used when the conductor is stranded, adjacent layer can be same direction stranding, outer layer must be left direction, but the stranding direction of complex stranded conductor outer layer can be right direction, the manufacturing material of the insulation layer is made of polytetrafluoroethylene, polyimide, polytetrafluoroethylene composite film, the insulation layer is wrapped with single layer or multiple layers, single layer wrapping coverage is not less than 67%, when wrapping and covering, wrapping and covering coverage is not less than 50%, the wrapping direction of adjacent layer should be opposite, after wrapping, insulation layer is sintered and sealed, the film strip of wrapping insulation is allowed to be connected, the length of the connection place is not more than 26mm, the insulation connection between different layers should not overlap, the value that the outer diameter of the connection place exceeds maximum outer diameter should be not more than 5 times of the nominal thickness of film, single layer strip insulation is 7 times, the connection of the outermost layer insulation strip in 45m finished wire cannot exceed one place.

[0005] As a further solution of the utility model, the shielding layer adopts braided structure, braided density should be not less than 85%, except the cable core with outer diameter greater than 7.9mm, braiding angle, that is, the included angle with radial direction, should be not less than 50°, not more than 72°, when braiding shielding layer, the braiding mode of joint is adopted, this braiding mode does not affect the size and performance of finished cable, there is no more than 1 spindle splicing at any braiding point of shielding layer.

[0006] As a further solution of the utility model, the sheath layer is a polytetrafluoroethylene raw material tape winding type, the polytetrafluoroethylene should have at least two reverse spiral winding, and the winding covering rate should be no less than 25%, and after coating, it should be sintered at high temperature, the sheath thickness is 0.10mm, and the minimum is 0.08mm.

[0007] Compared with the related art, the F4PI and F4 raw material tape winding insulation cable provided by the utility model has the following beneficial effects:

[0008] 1, the utility model discloses a silver-plated round copper wire and nickel-plated round copper wire are used to make the conductor, so that the conductor has excellent electrical performance, and the conductor is resistant to high temperature, and there is no breakdown phenomenon in the withstand voltage test, the insulation layer is wound by single layer or multiple layers, so that the insulation layer has good insulation, and the insulation layer is easy to peel. BRIEF DESCRIPTION OF DRAWINGS

[0009] In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in combination with the drawings.

[0010] Figure 1 It is a cross-sectional structure schematic view of the utility model F4PI and F4 raw material tape winding insulation cable.

[0011] In the drawing: 1, conductor; 2, insulation layer; 3, shielding layer; 4, sheath layer. DETAILED DESCRIPTION

[0012] Please refer to Figure 1 A F4PI and F4 raw material tape winding insulation cable, including conductor 1, the outer layer of conductor 1 is installed with insulation layer 2, the outer layer of insulation layer 2 is installed with shielding layer 3, the outer layer of shielding layer 3 is installed with sheath layer 4.

[0013] Preferably, the conductor 1 is generally made of silver-plated round copper wire and nickel-plated round copper wire, the conductor 1 is twisted by using the concentric twisting method, the adjacent layers can be twisted in the same direction, and the outer layer must be twisted to the left, but the outer layer of the complex twisted conductor 1 can be twisted to the right, the insulating layer 2 is made of polytetrafluoroethylene, polyimide, and polytetrafluoroethylene composite film, the insulating layer 2 is wrapped by using single-layer or multi-layer wrapping, the single-layer wrapping coverage rate is not less than 67%, the wrapping overlap rate is not less than 50% when the insulating layer 2 is wrapped by using multi-layer wrapping, the wrapping direction of the adjacent layers should be opposite, the insulating layer 2 is sintered and sealed after being wrapped, the wrapping film belt is allowed to be connected, the length of the connection part is not more than 26mm, the insulation connection between different layers should not overlap, the outer diameter of the connection part exceeding the maximum outer diameter should not be more than 5 times the nominal thickness of the film, the single-layer belt insulation is 7 times, the connection of the outermost insulating belt in the 45m finished wire cannot exceed one place, the shielding layer 3 adopts a woven structure, the weaving density should be not less than 85%, except for the cable core with an outer diameter greater than 7.9mm, the weaving angle, that is, the angle with the radial direction, should be not less than 50° and not more than 72°, the woven shielding layer 3 is woven by using the joint weaving method, which does not affect the size and performance of the finished cable, and there is no more than 1 spindle splicing at any weaving point of the shielding layer 3.

[0014] Preferably, the sheath layer 4 is a polytetrafluoroethylene raw material belt wrapping type, the polytetrafluoroethylene should have at least two reverse spiral windings, the wrapping overlap rate should be not less than 25%, and the wrapping should be sintered at high temperature after being wrapped. The thickness of the sheath is 0.10mm in nominal value, and the minimum thickness is 0.08mm.

[0015] The standard parts used in the embodiment can be directly purchased from the market, and can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the mechanical parts and equipment adopt the conventional types in the prior art, and the components known to those skilled in the art, the structure and principle thereof can be known by technical personnel or by conventional experimental methods.

[0016] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations or direct or indirect application can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents, and the same reason includes the patent protection range of the utility model.

Claims

1. An F4PI and F4 raw tape-wound insulation cable comprising a conductor (1), characterized in that: The outer layer of the conductor (1) is provided with an insulating layer (2), the outer layer of the insulating layer (2) is provided with a shielding layer (3), the outer layer of the shielding layer (3) is provided with a sheath layer (4), the conductor (1) is generally made of silver-plated round copper wire and nickel-plated round copper wire, the conductor (1) is twisted by using the concentric twisting method, the adjacent layers can be twisted in the same direction, the outer layer must be twisted to the left, but the outer layer of the complex twisted conductor (1) can be twisted to the right, the insulating layer (2) is made of polytetrafluoroethylene, polyimide and polytetrafluoroethylene composite film, the insulating layer (2) is wrapped by using single-layer or multi-layer wrapping, the single-layer wrapping coverage is not less than 67%, the wrapping overlap rate of the multi-layer wrapping is not less than 50%, the wrapping directions of the adjacent layers should be opposite, the insulating layer (2) is sintered and sealed after wrapping, the wrapping insulation film strip is allowed to be connected, the length of the connection part is not more than 26mm, the insulation connection between different layers should not overlap, the outer diameter of the connection part exceeding the maximum outer diameter should not be more than 5 times the nominal thickness of the film, the single-layer strip insulation is 7 times, and the connection of the outermost insulating strip in the 45m finished cable cannot exceed one place.

2. An F4 PI and F4 raw tape wrapped power cable according to claim 1, characterized in that: The shielding layer (3) adopts a woven structure, the weaving density should be not less than 85%, except for the cable core with an outer diameter greater than 7.9mm, the weaving angle, that is, the angle with the radial direction, should be not less than 50° and not more than 72°, the woven shielding layer (3) is woven by using a joint, this weaving method does not affect the size and performance of the finished cable, and there is no more than 1 spindle splicing at any weaving point of the shielding layer (3).

3. An F4 PI and F4 raw tape wrapped power cable according to claim 1, characterized in that: The sheath layer (4) is a polytetrafluoroethylene raw material wrapping type, the polytetrafluoroethylene should have at least two reverse spiral windings, the wrapping overlap rate should be not less than 25%, and the wrapping should be sintered at high temperature after wrapping, the sheath thickness is 0.10mm in nominal value, and the minimum is 0.08mm.

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