CN206961569U - A kind of termite-proof special cable of protection against rodents - Google Patents
A kind of termite-proof special cable of protection against rodents Download PDFInfo
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- CN206961569U CN206961569U CN201621142022.2U CN201621142022U CN206961569U CN 206961569 U CN206961569 U CN 206961569U CN 201621142022 U CN201621142022 U CN 201621142022U CN 206961569 U CN206961569 U CN 206961569U
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- termite
- against rodents
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Abstract
It the utility model is related to field of cables, more particularly to a kind of termite-proof special cable of protection against rodents.By the insulation inner core set gradually from inside to outside, wrapped belt, inner liner, leaky line layer, total screen layer and the termite-proof external sheath layer of protection against rodents；The insulation inner core includes the dielectric layers extruded outside conductor, and conductor；Total screen layer is copper strip shielding layer；Make a kind of termite-proof termite-proof effect of special cable protection against rodents of protection against rodents good.
Description
Technical field
It the utility model is related to field of cables, more particularly to a kind of termite-proof special cable of protection against rodents.
Background technology
For civilian nuclear facilities project (including nuclear power station, nuclear tests heap etc.), the termite-proof special cable of protection against rodents is proposed
Very high combination property requirement, particularly in electric property, mechanical performance, fire resisting and fire resistance, main performance requirements are such as
Under：When cable is specified or 90 DEG C of maximum operating temperature；Cable passes through pressure test；Cable has excellent bending performance, bending
Radius is 8 times of outside diameters of cable；Finished cable combustion test is burnt by IEC 60332-3-22 and IEC 60332-1 single verticals
Experiment；Cable halogen acid gas determine：PH value >=4.3, the μ s/mm of conductance≤10, smoke density light transmittance >=60%；But current
The cable corner hidden due to being widely used in nuclear power station, easily cause biting for mouse and termite, therefore current cable pair
Termite-proof and protection against rodents is bitten and also has higher requirement, specifically to meet termite-proof experiment (Kt50) and protection against rodents experiment：Bite journey
Spend the property of evaluation.
Utility model content
The purpose of this utility model is to provide a kind of good termite-proof special cable of protection against rodents of the termite-proof effect of protection against rodents.This practicality
New technical scheme is as follows：
A kind of termite-proof special cable of protection against rodents, it is characterised in that the insulation inner core set gradually from inside to outside, twining package tape
Layer, inner liner, leaky line layer, total screen layer and with the termite-proof external sheath layer of protection against rodents；The insulation inner core includes conductor,
And the dielectric layers extruded outside conductor；Total screen layer is copper strip shielding layer.
Flame-retardant layer is provided between the insulation inner core and wrapped belt, has gap between the flame-retardant layer and wrapped belt.It is logical
Setting flame-retardant layer is crossed, strengthens the flame retardant effect of cable；Due to being also provided with gap between flame-retardant layer and wrapped belt, fire-retardant
When the kernmantle of layer inner side is deformed upon by high temperature, the space of a deformation is provided by setting gap to produce.
Nylon protection against rodents layer is additionally provided with outside the oversheath.By setting nylon protection against rodents layer, on the one hand can match somebody with somebody with oversheath
Close and form two layers of overcoat, on the other hand can strengthen the effect of protection against rodents, extend cable service life.
Some grooves are evenly equipped with the nylon protection against rodents layer, rat poison is provided with the groove.Due to being set in groove
Rat poison, it can be achieved to kill mouse.
The dielectric layers are respectively the first insulating barrier and the second insulating barrier；First insulating barrier is the poly- second of crosslinking
Alkene, the second insulating barrier are cross-linked polyolefin.Insulate and crosslinked polyethylene is respectively adopted and is crosslinked poly- for double hyer insulation, dielectric layers
Alkene, it is crosslinked using radiation mode, on the one hand ensure that the fire resistance of cable, on the other hand enhance the resistance to of cable again
Irradiation behaviour, meet running environment requirement of the cable in nuclear power station；Suitable mould and crowded tubular type work are used when insulating exruded
Skill, the continuity and slickness of insulation surface layer can be effectively ensured, to ensure that it stretches rate.
The external sheath layer uses the thermoplastic low-smoke halide-free fireproof composite polyolefine material containing capsaicine and anti-termite agent.
The oversheath of cable, which will not only possess good fire resistance, must also good mechanical performance, employ thermoplastic low cigarette
Halogen-free anti-flaming polyolefin material, this material have good fire resistance, can coated in combustion process in combustion
Firmly cable is to prevent propagation of flame, it is ensured that cable passes through IEC60332-3-23B classes bunched burning test, good mechanicalness
Energy and the termite-proof property of protection against rodents.
The beneficial effects of the utility model are：This product is the termite-proof extraordinary electricity of used in nuclear power station low-smoke halogen-free flame retardant protection against rodents
Cable, it is mainly used in the control and data acquisition of nuclear power station diesel-driven generator emergency power supply system, processing etc.；The utility model has
There are low cigarette, Halogen, non-toxic nature, meet RoHS requirements, and the Long Service Life of 40 years can be reached.
Brief description of the drawings
By detailed description below in conjunction with the accompanying drawings, the foregoing and other objects, features and advantages of the utility model will
Become apparent.
Wherein：Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model nylon protection against rodents Rotating fields schematic diagram；
In accompanying drawing, 1 is wrapped belt, and 2 be inner liner, and 3 be leaky line layer, and 4 be total screen layer, and 5 be external sheath layer, and 6 are
Conductor, 7 be insulating barrier, and 9 be flame-retardant layer, and 10 be nylon protection against rodents layer.
Embodiment
Referring to shown in Fig. 1-Fig. 2, a kind of termite-proof special cable of protection against rodents, it is characterised in that set gradually from inside to outside
Insulate inner core, wrapped belt 1, inner liner 2, leaky line layer 3, total screen layer 4 and with the termite-proof external sheath layer 5 of protection against rodents；
The insulation inner core includes the dielectric layers 7 extruded outside conductor 6, and conductor；Total screen layer is copper strip shielding layer.Adopt
With more or single circular copper conductors, meet GB/T3956 conductor requirements, ensure that cable possesses certain flexibility, be easy to apply
If to prevent conductor from jumping creek in technique, conductor requires rounding, it is ensured that the smooth development of rear road insulating process；Using double (two) layers
Insulating barrier ensure that the fire retardant insulating performance of cable；Due to containing capsaicine and anti-termite agent, this outer shield on cable jacket
Jacking is effectively guaranteed the high-quality protection against rodents termite resistance energy of finished cable and fire resistance；Using copper strip shielding layer, Ke Yicong
Effectively strengthen the ability of protection against rodents in structure.
Flame-retardant layer 9 is provided between the insulation inner core and wrapped belt, has gap between the flame-retardant layer and wrapped belt.It is logical
Setting flame-retardant layer is crossed, strengthens the flame retardant effect of cable；Due to being also provided with gap between flame-retardant layer and wrapped belt, fire-retardant
When the kernmantle of layer inner side is deformed upon by high temperature, the space of a deformation is provided by setting gap to produce.
Nylon protection against rodents layer 10 is additionally provided with outside the oversheath., on the one hand can be with oversheath by setting nylon protection against rodents layer
Two layers of overcoat is cooperatively formed, on the other hand can strengthen the effect of protection against rodents, extends cable service life.
Some grooves are evenly equipped with the nylon protection against rodents layer, rat poison is provided with the groove.Due to being set in groove
Rat poison, it can be achieved to kill mouse.
The dielectric layers are respectively the first insulating barrier and the second insulating barrier；First insulating barrier is the poly- second of crosslinking
Alkene, the second insulating barrier are cross-linked polyolefin.Insulate and crosslinked polyethylene is respectively adopted and is crosslinked poly- for double hyer insulation, dielectric layers
Alkene, it is crosslinked using radiation mode, on the one hand ensure that the fire resistance of cable, on the other hand enhance the resistance to of cable again
Irradiation behaviour, meet running environment requirement of the cable in nuclear power station；Suitable mould and crowded tubular type work are used when insulating exruded
Skill, the continuity and slickness of insulation surface layer can be effectively ensured, to ensure that it stretches rate.
The external sheath layer uses the thermoplastic low-smoke halide-free fireproof composite polyolefine material containing capsaicine and anti-termite agent.
The oversheath of cable, which will not only possess good fire resistance, must also good mechanical performance, and we have selected thermoplastic
Low-smoke halide-free fireproof composite polyolefine material, this material have good fire resistance in combustion, can in combustion process
Cable is enveloped to prevent propagation of flame, it is ensured that cable passes through IEC60332-3-23B classes bunched burning test, good machine
Tool performance and the termite-proof property of protection against rodents.
The external sheath layer uses thermoplastic low smoke halogen-free flame-retardant polyolefin, and being equipped with capsaicine in external sheath layer peripheral hardware applies
Layer, and it is coated with anti-termite agent on capsicum element coating.Directly capsicum element coating and anti-termite agent side are put in external sheath layer peripheral hardware
Just spray, and after a long time use after surface abrasion, can spray again.
The performance of cable jacket meets following require：
It is described above, only it is preferred embodiment of the present utility model, any formal limit is not done to the utility model
System, it is every according to any simple modification made in the technical essence of the utility model to above example, equivalent variations, fall
Enter within the scope of protection of the utility model.
Claims (6)
- A kind of 1. termite-proof special cable of protection against rodents, it is characterised in that the insulation inner core set gradually from inside to outside, wrapped belt, Inner liner, leaky line layer, total screen layer and the termite-proof external sheath layer of protection against rodents；The insulation inner core includes conductor, and leads The dielectric layers extruded in vitro；Total screen layer is copper strip shielding layer.
- A kind of 2. termite-proof special cable of protection against rodents according to claim 1, it is characterised in that it is described insulation inner core with it is wrapped Flame-retardant layer is provided between belt, has gap between the flame-retardant layer and wrapped belt.
- 3. the termite-proof special cable of a kind of protection against rodents according to claim 1, it is characterised in that be additionally provided with outside the oversheath Nylon protection against rodents layer.
- 4. the termite-proof special cable of a kind of protection against rodents according to claim 3, it is characterised in that equal on the nylon protection against rodents layer Some grooves are furnished with, rat poison is provided with the groove.
- A kind of 5. termite-proof special cable of protection against rodents according to claim 1, it is characterised in that the dielectric layers difference For the first insulating barrier and the second insulating barrier；First insulating barrier is crosslinked polyethylene, and the second insulating barrier is cross-linked polyolefin.
- 6. the termite-proof special cable of a kind of protection against rodents according to claim 1, it is characterised in that the external sheath layer, which uses, to be contained There is the thermoplastic low-smoke halide-free fireproof composite polyolefine material of capsaicine and anti-termite agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621142022.2U CN206961569U (en) | 2016-10-20 | 2016-10-20 | A kind of termite-proof special cable of protection against rodents |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621142022.2U CN206961569U (en) | 2016-10-20 | 2016-10-20 | A kind of termite-proof special cable of protection against rodents |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206961569U true CN206961569U (en) | 2018-02-02 |
Family
ID=61376659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621142022.2U Active CN206961569U (en) | 2016-10-20 | 2016-10-20 | A kind of termite-proof special cable of protection against rodents |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206961569U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112951495A (en) * | 2021-03-12 | 2021-06-11 | 金川集团股份有限公司 | Rat-proof termite-proof flame-retardant wear-resistant cable |
-
2016
- 2016-10-20 CN CN201621142022.2U patent/CN206961569U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112951495A (en) * | 2021-03-12 | 2021-06-11 | 金川集团股份有限公司 | Rat-proof termite-proof flame-retardant wear-resistant cable |
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