Why is white powder being used inside electrical cables?

Different type of powder, such as talcum powder, MGO powder, Swell powder, Chalk powder, etc., are used, depending on the ability of electrical cables.

Electric cable Talcum Powder: In certain low-current cables, such as a computer power cable, Talcum Powder is used In certain low-current cables, such as a computer power cable, Talcum Powder is used The outer rubber of the cable is sticky and can be breaked when it is used for a long time. Talcum powder is used in some electrical cables to prevent this issue.

Electrical cable magnesium oxide powder: In high current cables, Mineral Insulated(MI) cables, magnesium oxide powder is used. Magnesium powder has two useful characteristics, high thermal conductivity and low electrical conductivity. Magnesium oxide powder provides many features and benefits in a subsequent electrical cable, as the high current passes through a wire, creates heat that can damage the cable. The magnesium oxide powder will conduct the heat from inside the cable outside due to its high thermal conductivity property and prevent the cable from heating. Magnesium oxide powder offers good electrical insulation due to its low power conductivity properties. Magnesium oxide powder provides the electric cables with sufficient lubrication. The electric cable is resistant to fire by magnesium oxide powder. Magnesium powder oxide flexibly protects electrical cables.

Electric cable swelling powder: Swellable Powder is used for blocking water and removing the problem of humidity in electric cables. When contacting with water, these powder can produce a gel-like substance that blocks water flow. The powder is swelling and expanding to permanently block water.

Electrical cables Chalk Powder: Chalk Powder is used for fire resistance in some cables. Chalk powder is used in some electrical cables to avoid wires within a cable from burning.

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