Intelligent energy-saving flexible mineral insulated fireproof cable with reduced size and processing method thereof

• Main Authors: CHEN LEI, YAO XIUYAN, LU XUE, SONG SHUBIN, ZHANG PING, ZHU ZHILAN, ZHAO QINIAN, RONG GAOYANG
• Format: Patent
• Language: Chinese; English
• Published: 26.03.2019
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRICITY; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES

The invention provides an intelligent energy-saving flexible mineral insulated fireproof cable with a reduced size. The cable comprises main wire cores which comprise conductors and inorganic mineralinsulating tapes, first halogen-free flame-retardant tape heat insulating layers and insulating layers sequentially wrapped around the conductors. Three main wire cores and three center wire cores aresymmetrically twisted to form a cable which is filled with an inorganic mineral heat-dissipating fire-proof layer, the inorganic mineral heat-dissipating fire-proof layer is wrapped in a second halogen-free flame-retardant tape heat insulating layer, the second halogen-free flame-retardant tape heat insulating layer is wrapped in a concentric conductor grounding wire core which is wrapped in a third halogen-free flame-retardant tape heat insulating layer, the third halogen-free flame-retardant tape heat insulating layer is extruded in a flame-retardant inner sheath, an interlocking armored metal sheath is outside the