Semi-conductive cable compounding is a process of adding a semi-conductive material to the insulation layer of a power cable to prevent the occurrence of electrical stress and ensure the safe operation of the cable. The semi-conductive cushion is a layer of material applied to the conductor of a cable to reduce the electrical stress concentration in the insulation layer. It is typically made of a carbon-based material, such as carbon black or conductive carbon, which has a low resistivity and can disperse electrical charges. Water-blocking tape, on the other hand, is a type of tape used in cable construction to prevent the penetration of water or moisture into the cable and cause damage to the insulation layer or conductor. It is typically made of a water-absorbing material, such as a polymer or fiber material, which can absorb and block the ingress of water.
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