Bending-resistant and tensile elevator or lift travelling flexible fireproof cable

Abstract

A bending-resistant and tensile elevator or lift travelling flexible fireproof cable comprises multi-strand soft copper wire conductors formed by twisting multiple strands of soft copper wires. A first synthetic mica tape layer is wound on the surface of each multi-strand soft copper wire conductor, and a ceramic silicone rubber insulation layer is arranged on the surface of each first synthetic mica tape layer through extrusion to form a fireproof insulated wire core. A plurality of fireproof insulated wire cores are stranded together, and a third refractory layer and a second synthetic mica tape layer wrap the stranded fireproof insulated wire cores to form a cable core. A plurality of cable cores are arranged in parallel to form a cable core group, multi-strand flexible steel wires are arranged between the cable groups, each multi-strand flexible steel wire is coated with a second refractory layer, and the gaps between the cable cores and between the cable cores and the multi-strand flexible steel wires coated with the second refractory layers are filled with glass fibers, so as to form a multi-group cable core. A first refractory layer and a third synthetic mica tape layer are arranged in a winding way, a metal welding corrugated armor layer is arranged in a longitudinal wrapping way and a ceramic silicone rubber outer sheath is arranged in an extrusion way outside the multi-group cable core in sequence.

Description

technical field [0001] The invention relates to a cable, in particular to a deflection-resistant and tension-resistant elevator or elevator accompanying flexible fireproof cable. Background technique [0002] With the continuous development of elevator accompanying cable wiring, people pay more and more attention to fire safety. At present, it is generally a flame-retardant cable, which uses multiple strands of tinned annealed copper wires to form a conductor, and ceramic silicone rubber insulation is extruded outside the conductor. Layers constitute the insulated wire core, and then two or three insulated wire cores are twisted and wrapped around the tape to form a wire pair. The wire is braided with oxygen-free copper wires to form a separate shielding layer, and multiple wire pairs with separate shielding layers are twisted. Constitute the cable core, the gap between the cable core is provided with a non-hygroscopic filling layer, the cable core and the filling layer are ...

AI Technical Summary

Problems solved by technology

The technical problem it solves is: how to improve the signal transmission quality of the elevator cable and the tensile resistance of the elevator accompanying cable to avoid damage to the elevator accompanying cable

Images