Mining photoelectric composite cable

Abstract

The invention relates to a cable, more particularly to a mining photoelectric composite cable. The composite cable mainly comprises an optical cable, a low-voltage cable, a central reinforcement, a water-blocking yarn, a waterstop, a mica tape, a protective layer and a sheath. Besides, the waterstop, the mica tape, the protective layer and the sheath are successively coated outside the optical cable and the low-voltage cable. Beneficial effects of the cable are as follows: requirements on equipment power consumption and signal transmission are met once and for all; pipeline space is saved; costs are reduced and it is also convenient for installation; moreover, there are following beneficial effects: 1, the optical cable employs a full dry type structure and there is no relative sliding between all original components of a cable core and a protective layer, so that accidents caused by downflow of ointments can be eliminated and it is convenient for construction; 2, the conductor employs a beam line mode and thus the conductor has good flexibility; 3, the synthetic mica tape is employed and double-layer lapping processing is carried out, so that the cable has excellent fire resistance performance; 4, an outer sheath of the cable core is formed by tubular glass fiber reinforced plastics, so that it can be ensured that the cable core is not influenced by machinery, chemistry and other environmental stresses; 5, the sheath utilizes low-smoke halogen-free polyethylene, so that the sheath has a good fire resistance property; and damages caused by fire hazards are reduced.

Description

technical field [0001] The invention relates to cables, more specifically to a mine-used photoelectric composite cable. Background technique [0002] At present, coal mine accidents occur frequently, and the number of casualties continues to rise. In this situation, it is even more important to strengthen the safety monitoring of coal mines. Using the security monitoring system, ground or central monitoring personnel can directly monitor the underground situation in real time, not only can visually monitor and record the safety production situation of the underground work site, but also, through the monitoring equipment installed underground, the signs of accidents can be found in time, Prevent problems before they happen. Therefore, the security monitoring system is an important part of the modern coal mine safety production monitoring system. And in order to ensure unimpeded communication and reduce losses in case of accidents, the transmission cables used in the mine a...

AI Technical Summary

Problems solved by technology

And in order to ensure unimpeded communication and reduce losses in case of accidents, the transmission cables used in the mine are required to meet the requirements for power consumption and signal transmission of transmission equipment, and also have excellent tensile, rodent-proof, compression-resistant, flame-retardant and fire-resistant functions, but The current cables cannot fulfill this requirement very well, and there are many deficiencies

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