Low-smoke halogen-free fire-resistant flame-retardant B1-level power cable and insulating material manufacturing method

• Main Authors: LIANG YU, PAN HAIDONG, LIANG FUQIU, CAO AIMIN, WANG LAN, LI TING, HUA QIGUO
• Format: Patent
• Language: Chinese; English
• Published: 19.09.2023
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONDUCTORS; ELECTRICITY; INSULATORS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention discloses a low-smoke halogen-free fire-resistant flame-retardant B1-level power cable and an insulating material manufacturing method, and relates to the technical field of cables and insulating materials, the technical scheme is that the low-smoke halogen-free fire-resistant flame-retardant B1-level power cable comprises a sheath, a plurality of cable core assemblies are arranged in the sheath, each cable core assembly comprises a copper core conductor, the copper core conductor is sleeved with a fire-resistant layer, and the outer portion of the fire-resistant layer is sleeved with a flame-retardant layer. The cable is characterized in that a fireproof layer is arranged on the outer side of the sheath, an insulating layer is arranged outside the fireproof layer in a sleeving mode, an oxygen isolation layer is arranged on the inner side of the sheath, a flame-retardant filling layer is arranged on the inner side of the oxygen isolation layer, and the space between the insulating layer and a wr