| 摘要 |
The present invention relates to a fire resistant cable and a manufacturing method. The manufacturing method comprises: a first tape forming step of covering the outer surface of a conductive portion in a spiral shape by using a first mica tape; a second tape forming step of covering the outer surface of the first mica tape in a spiral shape by using a second mica tape; and an insulation forming step of forming an insulation layer on the outside of the second mica tape by using extrusion molding. The first mica tape includes a first base layer, a first mica layer which is coated on the first base layer, and a first resin layer which is coated on the first mica layer. The first mica tape is wound such that the first base layer comes in contact with the conductive portion in the first tape forming step. The second mica tape includes a second base layer, a second mica layer which is coated on the second base layer, and a second resin layer which is coated on the second mica layer. The second mica tape is wound such that the second resin layer comes in contact with the first resin layer in the second tape forming step. The first resin layer and the second resin layer are made of a material having a melting point lower than that of the insulation layer, and are melted and bonded in the insulation layer forming step. |
