CN205318876U

CN205318876U - Nuclear power control cable

Info

Publication number: CN205318876U
Application number: CN201521138367.6U
Authority: CN
Inventors: 吴翰
Original assignee: Rich Electronic Science And Technology Co Ltd In Ward Jintan
Current assignee: CHANGZHOU JINTAN WODEFENG ELECTRONIC TECHNOLOGY Co.,Ltd.
Priority date: 2015-12-31
Filing date: 2015-12-31
Publication date: 2016-06-15
Anticipated expiration: 2025-12-31

Abstract

The utility model belongs to the technical field of the power cable technique and specifically relates to a nuclear power control cable, including four gangs of insulation core, insulation core includes a plurality of conductors and the vice insulating layer of parcel outside the conductor, four bursts of insulation core outsourcings have the major insulation layer, it is first insulation layer, composite shielding layer and second insulating layer in proper order to target in place in follow on the major insulation layer, there is high temperature resistant gasket for packing between four gangs of insulation core, there is iron shielded layer outside the major insulation layer, iron shielded layer has the restrictive coating outward, the utility model discloses a nuclear power control cable simple structure, convenient to use, with low costs, the interference killing feature is strong, and the weatherability is good, and the working property is reliable and stable, the low smoke and zero halogen, fire behaviour is good, and the insulating effect on major insulation layer is good.

Description

A kind of nuclear power controls cable

Technical field

This utility model relates to power cable technical field, and especially a kind of nuclear power controls cable.

Background technology

There are wind power station, water-power plant, heat power station and nuclear power station in the current electric station of China. Nuclear power is due to its safety, stable, life-span length and the impact feature such as little of environment is become one of important energy pillar. But the condition of nuclear power plant requires particularly harsh, cable used by it is also had significantly high requirement by this. Cables of nuclear power has been mainly used for reactor emergency shut-down, containment isolation, cooling that the heart is met an urgent need, reactor waste is derived, the thermal conductance of containment vessel goes out, prevent the functions such as radioactive substance environmental emission towards periphery, the cable of the electrical system equipment of its function can be performed under outer and normal condition and earthquake at containment, significantly high owing to requiring, common cable cannot meet its requirement.

Summary of the invention

The technical problems to be solved in the utility model is: overcome in prior art not enough, it is provided that a kind of insulating properties is good, long service life, and the nuclear power that mechanical strength is high controls cable.

For solving above-mentioned technical problem, the technical solution adopted in the utility model is as follows:

A kind of nuclear power controls cable, including four strand insulation cores, described insulated wire cores includes some conductors and the secondary insulating barrier being wrapped in outside conductor, it is surrounded by main insulating layer outside described four strand insulation cores, described main insulating layer is followed successively by the first insulating barrier, composite shielding layer and the second insulating barrier from interior putting in place, has high temperature resistant gasket for packing between described four strand insulation cores; There is metal screen layer outside described main insulating layer, outside described metal screen layer, have restrictive coating.

Further, described first insulating barrier and the second insulating barrier all adopt crosslinked polyethylene insulation material.

Further, the thickness of described first insulating barrier is 0.2-0.3mm, and the thickness of described second insulating barrier is 0.4-0.6mm.

Further, described composite shielding layer is that copper moulds composite bed, and it is 0.1-0.2mm that described copper moulds the thickness of composite bed.

Further, described metal screen layer is that copper strips braiding forms, and the thickness of described metal screen layer is 0.1-0.2mm.

Further, described restrictive coating is the less salt halogen-free flameproof thermoset rubber sheath of vapor crosslinking.

The technical solution of the utility model is adopted to provide the benefit that:

Nuclear power of the present utility model controls cable and includes four strand insulation cores, is surrounded by main insulating layer outside four strand insulation cores, and main insulating layer is followed successively by the first insulating barrier, composite shielding layer and the second insulating barrier from interior putting in place, has high temperature resistant gasket for packing between four strand insulation cores;There is metal screen layer outside main insulating layer, outside metal screen layer, have restrictive coating; Simple in construction, easy to use, cost is low, and capacity of resisting disturbance is strong, good weatherability, stable and reliable working performance; Low smoke and zero halogen, fire resistance is good, the good insulating effect of main insulating layer.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, this utility model is further illustrated.

Fig. 1 is structural representation of the present utility model.

In figure:

1 insulated wire cores, 2 secondary insulating barriers, 3 first insulating barriers, 4 composite shielding layers, 5 second insulating barriers, 6 high temperature resistant gasket for packings, 7 metal screen layers, 8 restrictive coatings.

Detailed description of the invention

Presently in connection with accompanying drawing, this utility model is described in further detail. These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is only described in a schematic way, and therefore it only shows the composition relevant with this utility model.

As it is shown in figure 1, a kind of nuclear power controls cable, including four strand insulation cores 1, described insulated wire cores 1 includes some conductors and the secondary insulating barrier 2 being wrapped in outside conductor, it is surrounded by main insulating layer, the structure of main insulating layer and secondary insulating barrier 2 outside described four strand insulation cores 1, improves the insulating properties of cable; Described main insulating layer is followed successively by the first insulating barrier 3, composite shielding layer 4 and the second insulating barrier 5 from interior putting in place, the structural design of main insulating layer improves the insulating properties of cable on the one hand, improve the shielding properties of cable on the other hand, having high temperature resistant gasket for packing 6 between described four strand insulation cores 1, the design of high temperature resistant gasket for packing 6 improves the heat-resisting quantity of cable; There is metal screen layer 7 outside described main insulating layer, outside described metal screen layer 7, have restrictive coating 8.

Preferably, described first insulating barrier 3 and the second insulating barrier 5 all adopt crosslinked polyethylene insulation material.

Preferably, the thickness of described first insulating barrier 3 is 0.2-0.3mm, and the thickness of described second insulating barrier 5 is 0.4-0.6mm, adopts this structure, good insulating effect.

Preferably, described composite shielding layer 4 moulds composite bed for copper, and it is 0.1-0.2mm that described copper moulds the thickness of composite bed; Copper being moulded the THICKNESS CONTROL of composite bed within the scope of this, shield effectiveness is good.

Preferably, described metal screen layer 7 forms for copper strips braiding, and the thickness of described metal screen layer 7 is 0.1-0.2mm; By the THICKNESS CONTROL of metal screen layer 7 within the scope of this, shield effectiveness is good.

Preferably, described restrictive coating 8 is the less salt halogen-free flameproof thermoset rubber sheath of vapor crosslinking, adopts this structure, and cable has an anti-flammability, and material more environmental protection.

With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not necessarily departing from this utility model technological thought, can carry out various change and amendment completely. The technical scope of this utility model is not limited to the content in description, it is necessary to determine its technical scope according to right.

Claims

1. a nuclear power controls cable, it is characterized in that: include four strand insulation cores, described insulated wire cores includes some conductors and the secondary insulating barrier being wrapped in outside conductor, it is surrounded by main insulating layer outside described four strand insulation cores, described main insulating layer is followed successively by the first insulating barrier, composite shielding layer and the second insulating barrier from interior putting in place, has high temperature resistant gasket for packing between described four strand insulation cores; There is metal screen layer outside described main insulating layer, outside described metal screen layer, have restrictive coating.

2. a kind of nuclear power according to claim 1 controls cable, it is characterised in that: described first insulating barrier and the second insulating barrier all adopt crosslinked polyethylene insulation material.

3. a kind of nuclear power according to claim 1 controls cable, it is characterised in that: the thickness of described first insulating barrier is 0.2-0.3mm, and the thickness of described second insulating barrier is 0.4-0.6mm.

4. a kind of nuclear power according to claim 1 controls cable, it is characterised in that: described composite shielding layer is that copper moulds composite bed, and it is 0.1-0.2mm that described copper moulds the thickness of composite bed.

5. a kind of nuclear power according to claim 1 controls cable, it is characterised in that: described metal screen layer is that copper strips braiding forms, and the thickness of described metal screen layer is 0.1-0.2mm.

6. a kind of nuclear power according to claim 1 controls cable, it is characterised in that: described restrictive coating is the less salt halogen-free flameproof thermoset rubber sheath of vapor crosslinking.