Mineral Insulated Flameproof Cable
1.Application
Magnesium oxide mineral insulated fireproof cable is also known as fireproof cable or copper core copper sheathed magnesium oxide insulated cable, and it is also known as MI cable abroad. The cable was first developed and patented by the Swiss in 1895. In 1934, France took the lead in converting this new technology into production. The emergence of magnesium oxide mineral insulated fireproof cables is an innovation to traditional cables, especially in some important places and key electrical circuits, making plastic cables incomparable. As a result, industrialized countries such as the United States and the former Soviet Union have successively started producing magnesium oxide mineral insulated fireproof cables, but they are still mainly used for military and important industrial facilities. However, China’s involvement was relatively late, and it was not until 1968 that the Shanghai Cable Research Institute began to develop the product. Due to the unique material and structure of this product, it has electrical, mechanical, environmental, and environmental performance that traditional plastic cables cannot match. With the continuous promotion of this product, magnesium oxide mineral insulated fireproof cables are increasingly recognized by people and have been widely used in basic industry and civil construction. Mineral cable is the main line of modern construction engineering, and it is an indispensable fireproof cable to ensure power transmission. It is suitable for power supply lines such as fire power supply, uninterruptible power supply, and emergency lighting power supply.
BTTZ、BTTQ magnesium oxide mineral insulated flameproof cable
2. Magnesium Oxide Mineral Insulated Firproof Cable Structure
3. Main Performance of Cable
- Fireproof Performance
- Strong Overload Protection
- Large Current Carrying Capacity
- High Working Temperature
- Waterpoofing, Anticorrosion and explosion-proof property
- Excellent Shielding Property
- Strong Radiation Resistance
- Long Service Life
- Small Outer Diameter and Light Weight
- Environmental Protection and Safety
- High Mechanical Strength
- Bending Performance
- Perfect Earthing
4. Mineral Cable Models
| Class | Model | Name | Section (mm2) | Cores | Rated voltage (V) | |
| Light-duty | BTTQ | Light-duty copper sheathed magnesia insulated control cable with copper conductor | 1.0-4.0 | 2-19 | 500 (450/750) | |
| BTTVQ | Light—duty copper sheathed magnesia insulated control cable with copper conductor and anticorrosion outer sheath | |||||
| BTTYQ | Light-duty copper sheathed magnesia insulated control cable with copper conductor and non—halogen low—smoke outer sheath | |||||
| Heavy-duty | BTTZ | Heavy-duty copper sheathed magnesia insulated control cable with copper conductor | 1.5-400 | 1-5 | 750 (600/1000) | |
| BTTVZ | Heavy-duty copper sheathed magnesia insulated control cable with copper conductor and anticorrosion outer sheath | |||||
| BTTYZ | Heavy-duty copper sheathed magnesia insulated control cable with copper conductor and non—halogen low—smoke outer sheath | |||||
