Fire-resistant aluminum alloy medium-voltage ant-and-rat-preventing cable

• Main Authors: ZENG QINGBING, LI CHUAN, KUANG ZHIWEN, ZHANG JUN, PAN ZHUN
• Format: Patent
• Language: English
• Published: 07.01.2015
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRICITY; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES

The utility model discloses a fire-resistant aluminum alloy medium-voltage ant-and-rat-preventing cable. The fire-resistant aluminum alloy medium-voltage ant-and-rat-preventing cable comprises at least one aluminum alloy conductor; the exterior of each aluminum alloy conductor is sequentially provided with an insulating layer and a metal shielding layer; an inner thermal insulation layer, an inner fire-resistant layer, a waterproof layer, an outer fire-resistant layer, an interlocking armored layer and an outer sheath are sequentially arranged outside the at least one aluminum alloy conductor of which the exterior is provided with the insulating layer and the metal shielding layer; and a halogen-free low-smoke polyolefin layer and a hard polyolefin layer which are distributed sequentially from inside to outside are co-extruded so as to from the outer sheath. The fire-resistant performance of the fire-resistant aluminum alloy medium-voltage ant-and-rat-preventing cable of the utility model is high, and the fire-resistant aluminum alloy medium-voltage ant-and-rat-preventing cable can continue to supply power for a period of time under a flame condition, and therefore, fire rescue as well as escape and evacuation of people can be benefitted; and the cable has the advantages of high creep resistance, high fire resistance, corrosion resistance, waterproof property, ant-and-rat-preventing performance, high flexibility, high conducting performance and wide application range.