Temperature-measuring soft fire-proof water-blocking signal power cable

Abstract

The invention discloses a temperature-measuring soft fire-proof water-blocking signal power cable comprising a cable core formed by twisting of three insulated wire cores and one optical fiber unit. The gap of the cable core is filled with a water-blocking cable paste; the outside of the cable core is extruded by an aluminum-plastic composite tape split screen; a steel-wire main shielding layer isbraided outside the aluminum-plastic composite tape split screen; an outer tooth-shaped water-blocking sheath is arranged outside the steel-wire main shielding layer; fireproof mud is arranged at thetooth form of the outer tooth-shaped water-blocking sheath; and a temperature monitoring wire core is arranged inside the outer sheath. According to the invention, the temperature monitoring wire core is arranged inside the outer sheath and thus the temperature change of the cable in use can be monitored; and an external monitoring device is connected by a monitoring cable to carry out alarming.

Description

Technical field [0001] The invention relates to the field of electric wires and cables, in particular to a temperature-measuring soft fire-proof and water-proof signal power cable. Background technique [0002] At present, domestic high-rise buildings, petroleum, mining, metallurgy, ships, power stations, subways, tunnels, etc. require high fire safety conditions. Existing fire-resistant cables can only use the material characteristics of the cable itself for ordinary fire protection when a dangerous situation occurs. However, when there is a danger to be discovered, the fire has generally spread, which may lead to untimely rescue and cause injury; in addition, the water resistance is also general, and once water enters, the cable is easy to burn. [0003] Therefore, the development of a flexible fire-resistant transmission signal cable capable of monitoring and alarming has become an urgent problem for the industry. Summary of the invention [0004] The technical problem to be sol...

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Problems solved by technology

[0002] At present, domestic high-rise buildings, petroleum, mining, metallurgy, ships, power stations, subways, tunnels and other fire safety requirements are high. Existing fireproof cables can only be used for ordinary fireproofing by using the material properties of the cable itself when a dangerous situation occurs. However, when there is a dangerous situation waiting to be discovered, it is generally because the fire has spread, which may lead to untimely rescue and cause injury; in addition, the water resistance is also average, and once water enters, the cable is easy to burn out

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