▎ 摘　　要

NOVELTY - The utility model relates to cable manufacturing technology field, and claims a copper core cross-linked polyethylene insulating fire-resistant flame-retardant cable, comprising an outer sheath; an insulating wire core and a conductor; the inner wall of the outer sheath is connected with the metal sheath; and the inner wall of the metal sheath is connected with the waterproof layer; the inner wall of the waterproof layer is provided with a peripheral fire blocking layer; and the inner wall of the fire blocking layer is connected with a steel belt armour layer; the inner wall of the steel belt armour layer is connected with an inner protective layer; and the inner wall of the inner protective layer is connected with the graphene heat conducting layer; the graphene heat conducting layer inner wall is provided with a filling material; and the filling material is connected with three insulating wire cores with the same structure; the insulating wire core comprises an outer shielding layer; and the inner wall of the outer shielding layer is connected with the insulating layer; the inner wall of the insulating layer is connected with the inner shielding layer; and the inner shielding layer is provided with a conductor. The copper core cross-linked polyethylene insulating fire-resistant flame-retardant cable has environment-friendly, heat-insulating waterproof effect, and good heat-insulating and waterproof effect, improving the practicability of the cable.