Dongguan Zhongkai Cable Co

The mineral insulated cables produced by Shengyu Cable include the following models:
Copper sheathed magnesia mineral insulated cable B, B, B, B, B,
Isolated (flexible) mineral insulated cable fireproof cable-( B),B,-,B,
Flexible mineral insulated cable fireproof cable B
Flexible metal sheathed inorganic mineral insulated fireproof cable,,,B,BR,B,B,B,,,B,
The mineral insulated cable model is more complex, please call us for details.
Isolated (flexible) mineral insulated cable fireproof cable
Uses
This type of flexible fireproof cable can ensure emergency use after installation. It can also be used as a temperature-resistant ℃ halogen-free flame-retardant cable. The use of fire-resistant cables, because this series of cables covers a wide range, not only overcomes the shortcomings of rigid fire-resistant cables, but also brings into play the advantages of flexible fire-resistant cables, and provides practical products for various key projects, enabling modern engineering to achieve the goal of short-circuit non-burning in electrical lines. , the effect of burning without short-circuiting. The application cases used in this article prove that flexible mineral insulated cables can not only be successfully applied in fire alarms and emergency life-saving circuits, but can also be promoted and applied in cases of high-density current and other special performance requirements. .
Features
① Fire resistance standards can pass three assessments: no breakdown under flame at ℃3, water spray after ℃3 (direct immersion in water is also acceptable), and knocking vibration under flame at ℃3 It will not be damaged, thus fully reaching the assessment standard of B in terms of fire resistance. ②This product can produce ~3 cores in ~square specifications, ~cores in ~square specifications, and single cores can be produced in 3~3 square meters. The length can be customized according to user needs, and the entire core can be delivered in a single package without joints. ③ There is no need to wear additional pipes when laying, and it has the same waterproof and impact-proof functions as B. ④ It has good anti-rat, anti-ant and anti-radiation functions, which can ensure the stability, long life and durability of the cable. ⑤ Low operating temperature, small line loss, strong overload resistance, long service life, and high safety. It is especially suitable for applications in projects with environmental protection requirements. ⑥ Explosion-proof (highly compacted insulating materials in cables and cable terminals installed with special sealing sleeves can prevent steam, gas and flame from entering the electrical equipment connected to the cable, so it is suitable for use in places with explosion risks and various explosion-proof equipment and equipment. Wiring.) ⑦ Corrosion resistance (The metal sheath of B series mineral insulated cables has high corrosion resistance. For most installations, it does not require additional protective measures even when the metal sheath of the cable is susceptible to chemical corrosion. Or in places with serious industrial pollution, because the outermost layer of the cable is protected by a plastic outer sheath, it is still safe.) ⑧ High mechanical strength (B series mineral insulated cables are strong and durable, even when the cable diameter is deformed by one-third It can still work normally, and even if it undergoes severe mechanical damage, its electrical properties will not be damaged.)
Main functions
Using aluminum as the main material for metal tube extrusion instead of copper tube drawing not only simplifies the process and improves It improves efficiency and significantly reduces product costs (aluminum is only // of the comprehensive cost of copper). The reason why aluminum pipes can replace copper pipes and do not melt under high-temperature flames is due to the expanded refractory layer extruded on the outside of the aluminum pipes: when attacked by flames, the expansion layer foams and solidifies, forming a thick barrier that blocks the flame from the aluminum. direct injection of the tube. Not only the integrity of the aluminum tube is preserved, but also the heating temperature of the mica tape is reduced to below ℃, and the stability of the mica tape insulation is undoubtedly improved (the insulation resistance of the mica tape increases as the temperature decreases)