CN201975111U - Fire-resistant control cable for nuclear power station - Google Patents
Fire-resistant control cable for nuclear power station Download PDFInfo
- Publication number
- CN201975111U CN201975111U CN2011200964456U CN201120096445U CN201975111U CN 201975111 U CN201975111 U CN 201975111U CN 2011200964456 U CN2011200964456 U CN 2011200964456U CN 201120096445 U CN201120096445 U CN 201120096445U CN 201975111 U CN201975111 U CN 201975111U
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- fire
- cable
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- nuclear power
- power station
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Abstract
The utility model relates to a cable, in particular to a fire-resistant control cable for a nuclear power station, belonging to the field of electrician products. The fire-resistant control cable for the nuclear power station comprises a cable conductor. The fire-resistant control cable for the nuclear power station is characterized in that at least two conductor cores are arranged in the cable conductor, the fire-resistant control cable additionally comprises a fireproof protection layer, the fireproof protection layer is arranged outside the two conductor cores, and the fireproof protection layer is made of a ceramic fire-resistant silicon rubber material; and a fire-resistant sheath layer is arranged on the outer layer of the fireproof protection layer and is a polyethylene (PE) fire-resistant sheath layer which is made of a PE material. By using the fireproof protection layer, the internal structure of the cable is effectively prevented from being mechanically changed and electrically changed; and since the PE fire-resistant sheath layer which is made of the PE material is arranged outside the fireproof protection layer, damages to the cable under external environments are effectively reduced, the service life of the cable is prolonged, and the fire resistance and the high-temperature obstruction effect of the cable are obviously reflected.
Description
Technical field
The utility model relates to the electric product field, is specifically related to a kind of cable.
Background technology
Cable is popularized in people's life, the communication cable that wherein has communication to use, and mining needs the mining cable of usefulness, the cables of nuclear power that nuclear power station can be used etc.And the kind of the cable of used in nuclear power station, quantity are more various.It is estimated that the needed cable of the nuclear power generating sets of a gigawatt utmost point can have kind more than 100.If divide by purposes, can be divided into power cable, control cable, measurement cable, telecommunication cable, fireproof cable etc.They not only should possess the characteristic of common cable, also will have low cigarette, Halogen, characteristic such as fire-retardant, and will have specific environment resistant.
Yet the fire resistance of existing used in nuclear power station cable and environment resistantly still have much room for improvement, present in addition fire-resisting cable only is used for a few serial cable, the scope of application is just smaller, the construction of cable and on-the-spot install there is strict demand, then required investment of production equipment is bigger, and the manufacturing cycle is long, and manufacturing cost is also very high, the recognition rate in market is also extremely low, so the popularity rate of existing fire-resisting cable is also very low.
The utility model content
The purpose of this utility model is, a kind of used in nuclear power station control fire-resisting cable is provided, and solves above technical problem.
The technical problem that the utility model solved can realize by the following technical solutions:
Used in nuclear power station control fire-resisting cable comprises a cable conductor, is provided with conductor thread core in the described cable conductor, it is characterized in that, is provided with at least two described conductor thread cores in the described cable conductor;
Also comprise a fireproof jointing sheath, described fireproof jointing sheath is arranged on outside two described conductor thread cores at least;
The fireproof jointing sheath that described fireproof jointing sheath adopts potteryization fire-resistant silicon rubber material to make.
It has possessed the fundamental characteristics of silicon rubber good springiness to the fireproof jointing sheath that the potteryization silastic material is made at normal temperatures; have nontoxic, tasteless, high-low temperature resistant, anti-ozone aging, weather-proof aging, excellent electric insulation performance; also possessed common high temperature silicon rubber good processing properties, to about 200 degree above freezing, can keep the flexible cable state at 40 degrees below zero.Attack at flame; temperature reaches 300 degree when above; fireproof jointing sheath is along with the rising of temperature; can be converted to rigid sponge ceramic body by original soft condition; the inner hole that produces of fireproof jointing sheath helps insulation after the hardening, and the sponge ceramic body has significant fire-resistant and intercepts action of high temperature like this; thereby the machinery variation does not take place in the internal structure of effectively protecting cable and electrical property changes, and can prolong useful life of the present utility model in changeable environment like this.
Described conductor thread core is coated with one deck refractory insulating layer, and described refractory insulating layer is arranged in the described fireproof jointing sheath.When effectively the variation of mechanical performance and electrical property does not take place protection the utility model internal structure, play insulating effect.
The refractory insulating layer that described refractory insulating layer adopts fluoroplastics to make.That fluoroplastics have is high temperature resistant, do not prolong characteristics such as combustion.The refractory insulating layer that adopts fluoroplastics to make can effectively reduce cable and probabilities such as combustion occur prolonging when fire takes place, so that adapt to changeable environment.
The skin of described fireproof jointing sheath is provided with the fire-resistant restrictive coating of one deck, and described fire-resistant restrictive coating is located at outside the described cable conductor.Described fireproof jointing sheath is arranged in the described fire-resistant restrictive coating; so that described fire-resistant restrictive coating can well protect fireproof jointing sheath to avoid the damage of external environment condition; when the described fire-resistant restrictive coating of flame combustion, owing under the effect of fireproof jointing sheath, can well protect the conductor inside core.
Described fire-resistant restrictive coating adopts the fire-resistant restrictive coating of PE of PE material.Make that the utility model can be longer in the changeable following life-span of environment, so that bring convenience to people.
Described cable conductor comprises seven described conductor thread cores, and seven described conductor thread cores are evenly distributed in the described fireproof jointing sheath.
Beneficial effect: owing to adopted technique scheme; the utility model utilizes fireproof jointing sheath effectively to protect the internal structure of cable that the machinery variation does not take place and electrical property changes; and the fire-resistant restrictive coating of the PE that the PE material is set outside fireproof jointing sheath; effectively reducing the utility model externally is damaged under the environment; prolong useful life of the present utility model, also significantly embody fire-resistant and obstruct action of high temperature of the present utility model.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach purpose with effect is easy to understand, below in conjunction with the further elaboration the utility model of concrete diagram.
With reference to Fig. 1, used in nuclear power station control fire-resisting cable comprises a cable conductor, is provided with conductor thread core 1 in the cable conductor.Be provided with at least two conductor thread cores 1 in the cable conductor; used in nuclear power station control fire-resisting cable also comprises a fireproof jointing sheath 3; fireproof jointing sheath 3 is arranged on outside two conductor thread cores 1 at least, the fireproof jointing sheath that fireproof jointing sheath 3 adopts potteryization fire-resistant silicon rubber material to make.Conductor thread core 1 is coated with one deck refractory insulating layer 2, and refractory insulating layer 2 is arranged in the fireproof jointing sheath 3.In the variation that mechanical performance and electrical property do not take place, play insulating effect with effective protection the utility model internal structure.The refractory insulating layer that refractory insulating layer 2 adopts fluoroplastics to make.That fluoroplastics have is high temperature resistant, do not prolong characteristics such as combustion.The refractory insulating layer 2 that adopts fluoroplastics to make can effectively reduce cable and probabilities such as combustion occur prolonging when fire takes place.
It has possessed the fundamental characteristics of silicon rubber good springiness to the fireproof jointing sheath 3 that the potteryization silastic material is made at normal temperatures; have nontoxic, tasteless, high-low temperature resistant, anti-ozone aging, weather-proof aging, excellent electric insulation performance; also possessed common high temperature silicon rubber good processing properties, to about 200 degree above freezing, can keep the flexible cable state at 40 degrees below zero.Attack at flame; temperature reaches 300 degree when above; fireproof jointing sheath 3 is along with the rising of temperature; can be converted to rigid sponge ceramic body by original soft condition; the fireproof jointing sheath 3 inner holes that produce after the hardening; help insulation, the sponge ceramic body has fire-resistant significantly and intercepts action of high temperature like this, thereby effectively protects the internal structure of cable that mechanical the variation and the electrical property variation do not taken place.
The skin of fireproof jointing sheath 3 is provided with the fire-resistant restrictive coating 4 of one deck, and fire-resistant restrictive coating 4 is positioned at outside the cable conductor.Fireproof jointing sheath 3 is arranged in the fire-resistant restrictive coating 4; so that fire-resistant restrictive coating 4 can well protect fireproof jointing sheath 3 to avoid the damage of external environment condition; when the fire-resistant restrictive coating 4 of flame combustion, owing under the effect of fireproof jointing sheath 3, can well protect conductor inside core 1.Fire-resistant restrictive coating 4 adopts the fire-resistant restrictive coating of PE of PE material.Make that the utility model can be longer in the changeable following life-span of environment, so that bring convenience to people.Cable conductor comprises that 1, seven conductor thread core 1 of seven conductor thread cores is evenly distributed in the fireproof jointing sheath 3.
The utility model utilizes fireproof jointing sheath 3 effectively to protect the internal structure of cable that the machinery variation does not take place and electrical property changes; and the fire-resistant restrictive coating of the PE that the PE material is set outside fireproof jointing sheath 3; effectively reducing the utility model externally is damaged under the environment; prolong useful life of the present utility model, also significantly embody fire-resistant and obstruct action of high temperature of the present utility model.
More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. used in nuclear power station control fire-resisting cable comprises a cable conductor, is provided with conductor thread core in the described cable conductor, it is characterized in that, is provided with at least two described conductor thread cores in the described cable conductor;
Also comprise a fireproof jointing sheath, described fireproof jointing sheath is arranged on outside two described conductor thread cores at least;
The fireproof jointing sheath that described fireproof jointing sheath adopts potteryization fire-resistant silicon rubber material to make.
2. used in nuclear power station control fire-resisting cable according to claim 1, it is characterized in that: described conductor thread core is coated with one deck refractory insulating layer, and described refractory insulating layer is arranged in the described fireproof jointing sheath.
3. used in nuclear power station control fire-resisting cable according to claim 2 is characterized in that: the refractory insulating layer that described refractory insulating layer adopts fluoroplastics to make.
4. used in nuclear power station control fire-resisting cable according to claim 1, it is characterized in that: the skin of described fireproof jointing sheath is provided with the fire-resistant restrictive coating of one deck, and described fire-resistant restrictive coating is located at outside the described cable conductor.
5. used in nuclear power station control fire-resisting cable according to claim 4, it is characterized in that: described fire-resistant restrictive coating adopts the fire-resistant restrictive coating of PE of PE material.
6. used in nuclear power station control fire-resisting cable according to claim 4, it is characterized in that: described cable conductor comprises seven described conductor thread cores, seven described conductor thread cores are evenly distributed in the described fireproof jointing sheath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200964456U CN201975111U (en) | 2011-04-02 | 2011-04-02 | Fire-resistant control cable for nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200964456U CN201975111U (en) | 2011-04-02 | 2011-04-02 | Fire-resistant control cable for nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201975111U true CN201975111U (en) | 2011-09-14 |
Family
ID=44580208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200964456U Expired - Lifetime CN201975111U (en) | 2011-04-02 | 2011-04-02 | Fire-resistant control cable for nuclear power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201975111U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103903766A (en) * | 2014-03-06 | 2014-07-02 | 江苏珠影特种电缆有限公司 | Fireproof flexible control cable for elevator |
| CN104464905A (en) * | 2013-09-25 | 2015-03-25 | 无锡市逸翔线缆有限公司 | Fluorine plastic fireproof cable |
-
2011
- 2011-04-02 CN CN2011200964456U patent/CN201975111U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464905A (en) * | 2013-09-25 | 2015-03-25 | 无锡市逸翔线缆有限公司 | Fluorine plastic fireproof cable |
| CN103903766A (en) * | 2014-03-06 | 2014-07-02 | 江苏珠影特种电缆有限公司 | Fireproof flexible control cable for elevator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110914 |
|
| CX01 | Expiry of patent term |