A mineral insulated cable comprises the cooper conductor, magnesium oxide imsulator, a copper sheath. If necessary, there is outer plastic jacket outside copper sheath. It can be provided with an Halogen-free, low-smoke sheath in necessary occasions.

As Mineral insulated cable (fireproof cable) is made of inorganic materials, therefore it has some characteristics superior to any other cables, such as fire proof, high current rating, high strengh, halogen-free and no toxicity, esposion proof, water proof, corrosion resistance, long service life, high overload, high operating temperature, low cost and small curve radius.