Double Core Copper Sheath Mineral Insulated Cable for Freezing Proofing, is a kind of mineral insulated cable with two core conductors inside insulated with densely compressed magnesium oxide and covered with copper sheath. It is widely used on freezing proofing industry by the electric heating the frozen media into melten point.
Composition of Mineral insulated cable
Mineral insulated cable is a kind of cable which USES annealed copper as conductor, dense magnesium oxide as insulation and annealed copper pipe as sheath. If necessary, it can be squeezed with a layer of plastic outer sheath around the annealed copper sheath. For specially required occasions, a layer of low-smoke halogen free sheath can be applied.
Product presentation
| Structure Characteristic | Voltage Grade | Model | Name | Core Number | Cross Section mm2 |
| Light load | 500V | BTTQ | light copper conductor copper sheathed mineral insulated cable | 1,2,3,4,7 | 1-4 |
| BTTVQ | light copper core copper sheathed PVC sheathed mineral insulated cables | 1,2,3,4,7 | 1-4 |
| Heavy load | 750V | BTTZ | heavy duty copper conductor copper sheathed mineral insulated cable | 1,2,3,4,7,10,12,19 | 1-400 |
| BTTVZ | heavy duty copper conductor copper sheathed PVC sheathed mineral insulated cables | 1,2,3,4,7,10,12,19 | 1-400 |
Advantages of Mineral Insulated Cables
Since all the materials of this cable are inorganic, it has some advantages that other cables cannot have, such as, fire prevention, high current carrying capacity, resistance to mechanical damage, non-toxic, non-halogen, explosion-proof, waterproof, corrosion resistance, long life, safety, overload resistance, high temperature resistance, low cost, small bending radius, anti-ant, anti-rat bite, copper sheath used as a protective grounding wire and so on.
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