Overview
Product Details
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Detailed Description |
Mineral insulated cable is also called fireproof cable or copper-conductor copper sheathed magnesia insulated cable in china, known as MI cable abroad abroad. In 1985 , Swiss researched and developed this cable and received the patent. In 1934, this new technology was converted into the production for the first time in France. The emergence of MI cable demonstrates the innovation of traditional cable, especially, its effect in the some important areas and electric circuits, it leaves the plastic cable in the dust. According, U.K., Australia and Canada began to produce the MI cable gradually, but, the cable was applied to building industry and key industrial facilities at that time. And, China was relatively late to involve in the field of this cable, until Shanghai Cable Research Institute was engaged in the research and development of this product in 1968. Due to the particularity of product material and structure, it has high electric property, mechanical performance environment resistance and environmental protection that the continuous promotion of this product, people require higher demands for the safety, it is recognized by more and more people, and now, it has been widely applied to the basic industry and civil construction. |
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Structure diagram |
MI cable is composed of high-conductivity copper conductor, mineral (magnesium-oxide) insulator and seamless copper tube sheath, if the cable is used in the locations where the copper will be eroded, it may be added with plastic sheath(optional) at the outermost layer.The continuous working temperature of bare cable reaches 250℃, it can supply the power for 3hours continuously at 950℃~1000℃, in addition, it can work at copper melting point of1083℃in short time or unusual time (melting point of magnesia:2800℃). |
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Main performance of cable |
1.Fire-resistive performance.
2.Strong overload protection. 3.Large current carrying capacity. 4.High working temperature. 5.Waterproof, anticorrosion and explosion-proof property. 6.Excellent shielding property. 7.Strong radiation resistance. 8.Long service life. 9.Small outer diameter and light weight. 10.Environmental protection and safety. 11.High mechanical strength. 12.Bending performance. 13.Perfect earthing. |
| Class | Model | Name | Section(mm²) | Core | Rated voltage(v) |
| Light-duty | BTTQ |
Light-duty copper sheathed mineral insulated cable with copper conductor |
1.0-4.0 | 2-7 | 500(500/500) |
| BTTVQ |
Light- duty copper sheathed mineral insulated cable with copper conductor and anticorrosion sheath |
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| BTTYQ |
Light-duty copper sheathed mineral insulated cable with copper conductor and non-halogen low-smoke sheath |
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| Heavy-duty | BTTZ |
Heavy-duty copper sheathed mineral insulated cable with copper conductor |
1-400 | 1-19 | 750(750/750) |
| BTTVZ |
Heavy-duty copper sheathed mineral insulated cable with copper conductor and anticorrosion sheath |
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| BTTYZ |
Heavy-duty copper sheathed mineral insulated cable with copper.conductor and non-halogen low- smoke sheath |
