CN206774272U - A kind of flexible mineral insulation cable - Google Patents
A kind of flexible mineral insulation cable Download PDFInfo
- Publication number
- CN206774272U CN206774272U CN201720417066.XU CN201720417066U CN206774272U CN 206774272 U CN206774272 U CN 206774272U CN 201720417066 U CN201720417066 U CN 201720417066U CN 206774272 U CN206774272 U CN 206774272U
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- China
- Prior art keywords
- enhancing
- insulating barrier
- fireprotection layer
- mineral insulation
- flame retardant
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Abstract
It the utility model is related to a kind of flexible mineral insulation cable, including sheath, enhancing fireprotection layer, conductor, flame retardant coating, insulating barrier and packed layer；Enhancing fireprotection layer is provided with the sheath；The enhancing fireprotection layer is high-flame-resistance halogen-free strap；Several conductors are provided with the enhancing fireprotection layer, and bag is provided with flame retardant coating and insulating barrier successively outside each above-mentioned conductor；The material of the flame retardant coating is calcining muscovite；The insulating barrier is EPR rubber；Packed layer is provided between the insulating barrier and enhancing fireprotection layer, flexible mineral insulation cable of the present utility model, it is simple in construction, cost is low, the advantages of with good fire protection flame retarding, heat-and corrosion-resistant, also there is preferable bending property and softness simultaneously, convenient use packaging and transport are placed, and meet the use demand of technical field of electric wires and cables.
Description
Technical field
The utility model belongs to technical field of electric wires and cables, more particularly to a kind of flexible mineral insulation cable.
Background technology
Mineral insulated cable abbreviation MI cables, as distribution in use, domestic custom is referred to as magnesia cable or anti-thermoelectricity
Cable.It is that mineral insulated cable is by copper conductor, oxidation by copper core copper sheath cable of the mineral material magnesia powder as insulation
Two kinds of magnesium, copper sheath inorganic material compositions.
The existing common working environment of mineral cable is all more severe, it is necessary in face of outer strips such as high temperature, low temperature, corrosion
The test of part, especially for the specific environment for having fire resisting and insulating requirements, such as offshore oil platform, oil plant, natural gas life
Illuminating line etc. on the mating existing network network and coke of production induction system etc., the heating furnace electric wiring and stove of metallurgical production, and
Insulating properties and the fire protecting performance deficiency of existing mineral insulated cable, the use to reality bring potential safety hazard.
Utility model content
The purpose of the utility model is to provide a kind of fire resistance and insulating properties height for overcome the deficiencies in the prior art,
And the flexible mineral insulation cable of service life length.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：A kind of flexible mineral insulation cable, including shield
Set, enhancing fireprotection layer, conductor, flame retardant coating, insulating barrier and packed layer；Enhancing fireprotection layer is provided with the sheath；The enhancing is anti-
Fire bed is high-flame-resistance halogen-free strap；Several conductors are provided with the enhancing fireprotection layer, and bag is provided with successively outside each above-mentioned conductor
Flame retardant coating and insulating barrier；The material of the flame retardant coating is calcining muscovite；The insulating barrier is EPR rubber；The insulating barrier and
Packed layer is provided between enhancing fireprotection layer.
Preferably, the material of the sheath is low smoke and zero halogen compound.
Preferably, the quantity of the conductor is four；The conductor is annealing twisted copper conductors.
Preferably, the packed layer is made up of several low smoke and zero halogen bars.
Due to the utilization of above-mentioned technical proposal, the utility model has following advantages compared with prior art：
The flexible mineral insulation cable of the utility model, simple in construction, cost is low, have good fire protection flame retarding,
The advantages of heat-and corrosion-resistant, while also there is preferable bending property and softness, convenient use packaging and transport are placed, symbol
Close the use demand of technical field of electric wires and cables.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present utility model；
Wherein：1st, sheath；2nd, fireprotection layer is strengthened；3rd, conductor；4th, flame retardant coating；5th, insulating barrier；6th, packed layer.
Embodiment
Below in conjunction with the accompanying drawings and specific embodiment the utility model is described in further detail.
A kind of flexible mineral insulation cable described in the utility model as shown in Figure 1, including sheath 1, enhancing fire prevention
Layer 2, conductor 3, flame retardant coating 4, insulating barrier 5 and packed layer 6；Enhancing fireprotection layer 2 is provided with the sheath 1；The enhancing fireprotection layer 2
For high-flame-resistance halogen-free strap；Described strengthen is provided with several conductors 3 in fireprotection layer 2, and is wrapped successively provided with resistance to outside each above-mentioned conductor 3
Fire bed 4 and insulating barrier 5；The material of the flame retardant coating 4 is calcining muscovite；The insulating barrier 5 is EPR rubber；The insulating barrier 4
Packed layer 6 is provided between enhancing fireprotection layer 5；The material of the sheath 1 is low smoke and zero halogen compound；The quantity of the conductor 3
For four；The conductor 3 is annealing twisted copper conductors；The packed layer 6 is made up of several low smoke and zero halogen bars.
Specifically, wherein conductor belongs to five class conductors, has natural bending property using annealing twisted copper conductors
The advantages of, while insulating barrier uses rubber-covered, has a stronger bending property, routinely cable laying requirement during laying
Can, it is not necessary to the special junction box of inorganic mineral insulation cable and wiring Glan, while good environmental protection.
Flame retardant coating material therefor is calcining muscovite, and mica content is high, and specific insulation is larger, possesses certain insulating properties
Can, and its fire resisting can meet 950 DEG C of x 180min, fire resistance is very reliable, good environmental protection.
Packed layer is filled using low smoke and zero halogen bar, and compared with conventional polypropylene tear gasket for packing, content of halogen is lower, combustion
A large amount of dense smokes, good environmental protection are not produced after burning.
Enhancing fireprotection layer is high-flame-resistance halogen-free strap, has at 500 ~ 1200 DEG C under the conditions of flame, nonflame and does not melt, do not fall off not
Spot fire can be caused, firm ceramic-like armour body can be burnt till, the time is more long harder, can play it is extraordinary it is heat-insulated, cooling,
The effect of fire resisting；Specific insulation >=1.0*101 4 possesses preferable insulating effect；The other ceramic band flue gas toxity is small, inhales
Water rate is small, stable insulation, good environmental protection.
The material of sheath is low smoke and zero halogen compound, and oxygen index (OI) >=38 possess stronger flame retardant effect, and cable can integrally lead to
Cross IEC60332-3-22 bunchy fire retardancy test；Specific insulation >=1.0*101 1, good insulation preformance, low smoke and zero halogen, nothing
Asbestos, good environmental protection.
Further, above-mentioned flexible mineral insulation cable, it does not contain the magnesium oxide insulated of conventional mineral insulated cable, because
This does not possess moisture absorption, and insulaion resistance is highly stable, will not be deteriorated because of magnesia moisture absorption insulating properties.
Flexible mineral insulation cable of the present utility model, simple in construction, cost is low, has good fire protection flame retarding, heat-resisting
Corrosion resistant advantage, while also there is preferable bending property and softness, convenient use packaging and transport are placed, and meet electricity
The use demand of line field of cable technology.
It the above is only concrete application example of the present utility model, do not form any limit to the scope of protection of the utility model
System.All technical schemes formed using equivalent transformation or equivalent replacement, all fall within the utility model rights protection scope it
It is interior.
Claims (4)
- A kind of 1. flexible mineral insulation cable, it is characterised in that：Including sheath, enhancing fireprotection layer, conductor, flame retardant coating, insulating barrier And packed layer；Enhancing fireprotection layer is provided with the sheath；The enhancing fireprotection layer is high-flame-resistance halogen-free strap；The enhancing fireprotection layer It is interior to be provided with several conductors, and bag is provided with flame retardant coating and insulating barrier successively outside each above-mentioned conductor；The material of the flame retardant coating is Calcine muscovite；The insulating barrier is EPR rubber；Packed layer is provided between the insulating barrier and enhancing fireprotection layer.
- 2. flexible mineral insulation cable according to claim 1, it is characterised in that：The material of the sheath is low smoke and zero halogen Compound.
- 3. flexible mineral insulation cable according to claim 1, it is characterised in that：The quantity of the conductor is four；Institute Conductor is stated as annealing twisted copper conductors.
- 4. the flexible mineral insulation cable according to claim 1 or 3, it is characterised in that：The packed layer is low by several Cigarette Halogen bar forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720417066.XU CN206774272U (en) | 2017-04-20 | 2017-04-20 | A kind of flexible mineral insulation cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720417066.XU CN206774272U (en) | 2017-04-20 | 2017-04-20 | A kind of flexible mineral insulation cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206774272U true CN206774272U (en) | 2017-12-19 |
Family
ID=60634337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720417066.XU Active CN206774272U (en) | 2017-04-20 | 2017-04-20 | A kind of flexible mineral insulation cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206774272U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068260A (en) * | 2017-04-20 | 2017-08-18 | 苏州闪联高压电器有限公司 | A kind of flexible mineral insulation cable |
-
2017
- 2017-04-20 CN CN201720417066.XU patent/CN206774272U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107068260A (en) * | 2017-04-20 | 2017-08-18 | 苏州闪联高压电器有限公司 | A kind of flexible mineral insulation cable |
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