The Special Magnesium Oxide Used in Cable

   The magnesium insulation cable is a kind of new cable with seamless copper tube outer layer. The centrality is filled with magnesium oxide powder, and the conductor is sub-thread copper rod. It has many advantages, such as high temperature resistance, fireproofing, anti-explosion, inflaming retarding, small outside diameter, high mechanical strength, long life and need not independent earth lead. Therefore, magnesium insulation cable has been widely applied in the environment with risk, scurviness and high temperature, for example, nuclear power station, metallurgy, chemical engineering, mine, etc. Over the years, with the flourish of different skills and crafts, the magnesium oxide cable is also used in civil architecture, like high-rise buildings, airport, wharf, underground and so on.

The advantage of magnesium insulation cable

   1. Preventing fires thoroughly.

   The magnesium insulation cable is nonflammable. When the temperature achieves 250℃, it can operate for a long time. When the temperature achieves 1000℃, it also can insist to operate normally for 30 minutes. Therefore, it won’t bring fire. Even in the case with fire, the magnesium insulation cable need not to change if flame temperature is lower than melting point temperature of copper. In addition, in the case of fire, it won’t create toxic fumes and gases.

   2. Strong ability of overload protection

   When the circuit overload, the cable won’t be damaged as long as the heat can not achieve copper’s melting point. Even if it is punctured at moment, the magnesium oxide crystal won’t form carbides. After the overload eliminates, the functions of cable would not change and operate normally.

   3. High operating temperature

   Because the melting point temperature of magnesium oxide crystal in insulating layer is higher than the melting point temperature of copper. Therefore, for the cable, the highest temperature of long operation can achieve 250℃. In the short term, it can operate regularly at nearly cooper’s melting temperature.

   4. Good explosion-proof function and antisepsis function

   Due to the protecting bush is solid drawn steel pipe, magnesium oxide cable has many functions, such as prevent water, inoisture, oil and the damage of chemicals. In addition, the copper pipe has proper mechanical strength. So it has a better explosion-proof function.

   5. Long life

   The magnesium insulation cable is composed of inorganic data. So there can be no question on insulation aging. Its using life is more than three times as much to general cable.

   6. Higher flexibility

   As a magnesium oxide supplier, we can tell you the magnesium insulation cable can be set on crane span structure with general cable. It is always more flexible than general cable laying and saves the investment of cable bridge. In this way, it drops project cost as well.