Low-smoke zero-halogen damp-proof fire-resistant tensile-resistant industrial cable

Abstract

The invention discloses a low-smoke zero-halogen damp-proof fire-resistant tensile-resistant industrial cable. The low-smoke zero-halogen damp-proof fire-resistant tensile-resistant industrial cable comprises a cable body, wherein the cable body comprises cable cores, a cable core protection layer, an insulation layer, a shielding layer and an outer sheath. The cross section of the cable core protection layer is of a round structure. A plurality of cable cores are arranged in the cable core protection layer. The gap portion between the cable core protection layer and the cable cores is filled with a filler. The gap portion formed in the cable core protection layer is provided with steel belt tensile-resistant wires. The insulation layer is arranged outside the cable core protection layer. A high-flame-retardant glass cotton tape is arranged between the insulation layer and the cable core protection layer. The shielding layer is extruded outside the insulation layer. A plurality of drainage cores are evenly arranged in the shielding layer. The shielding layer is composed of an inorganic substance filling layer, an armor layer and an aramid fiber woven reinforcement layer which are tightly extruded from inside to outside. The outer sheath is arranged outside the aramid fiber woven reinforcement layer. A high-temperature ceramic coating is arranged between the outer sheath and the aramid fiber woven reinforcement layer. The low-smoke zero-halogen damp-proof fire-resistant tensile-resistant industrial cable is reasonable in structural design and good in using effect and has excellent damp-proof fire-resistant characteristics.

Description

technical field [0001] The invention relates to the field of cables, in particular to a low-smoke, halogen-free, moisture-proof, fire-resistant, stretch-resistant industrial cable. Background technique [0002] At present, with the development of science and technology, industries such as industry and electrical industries are also making progress. At the same time, in these fields, the demand for cables is also increasing. However, due to the continuous development of the economy, the fire hazards caused by cables It also increases, and among many fire-causing factors, the proportion of fire caused by electrical lines is the highest, and some existing cables are often released due to improper material selection or unreasonable structural design. Two-thirds of the people who died in the fire were suffocated by inhaling the toxic gas released when the cables and wires burned. The Chinese patent document application number is CN201320587252.X, which discloses a fire-resistant ...

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Problems solved by technology

[0002] At present, with the development of science and technology, industries such as industry and electrical industries are also making progress. At the same time, in these fields, the demand for cables is also increasing. However, due to the continuous development of the economy, the fire hazards caused by cables It also increases, and among many fire-causing factors, the proportion of fire caused by electrical lines is the highest, and some existing cables are often released due to improper material selection or unreasonable structural design. Two-thirds of the people who died in the fire were suffocated by inhaling the toxic gas released when the cables and wires burned. The Chinese patent document application number is CN201320587252.X, which discloses a fire-resistant and flame-retardant wire The cable is composed of a conductive core, a fireproof layer, a waterproof layer and an outer sheath. By setting the fireproof layer in the cable, it can achieve the effect of heat insulation and fire prevention. However, this structural design is relatively simple, and the fireproof effect is limited. If the fire is fierce , it will not have a good fire prevention effect, and will release a large amount of harmful smoke, causing casualties and bringing great losses to people.

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