Cross-linked polyethylene insulated fireproof flame retardant power supply cable

Abstract

The invention relates to a cross-linked polyethylene insulated fireproof flame retardant power supply cable comprising conductors, conductor shields covered outside the conductors, insulating layers covered outside the conductor shields and insulating shields covered outside the insulating layers, wherein the conductors, the conductor shields, the insulating layers and the insulating shields are lapped with metal shield layers to form insulated wire cores, and a plurality of insulated wire cores are wrapped with a strap to form a cable core; filling layers are filled in the gaps of the cable core; a sheath is sleeved outside the cable core; a ceramic silicone rubber fireproof layer is covered outside the cable core; and a halogen free flame retardant polyolefin protective fireproof layer is covered outside the ceramic silicone rubber fireproof layer. The cross-linked polyethylene insulated fireproof flame retardant power supply cable adopts a compound fireproof layer formed by the fireproof layer and the protective fireproof layer as an inner lining to be covered on the cable core, and the compound fireproof layer has excellent fireproof property, can achieve the A class flame retardant effect, and plays a beneficial effect on the fireproof property of the cable; and in flame, the cable can not release corrosive gas and dense smoke, can not form secondary hazard and is favorable for escape and rescue of personnel.

Description

technical field [0001] The invention relates to a cross-linked polyethylene insulated fire-resistant and flame-retardant power cable. Background technique [0002] With the increase of densely populated places such as intelligent buildings and high-rise buildings, XLPE insulated fire-resistant power cables with rated voltages of 8.7 / 10kV have been used in the power supply systems of these facilities. Because ordinary XLPE insulated power cables do not have fire resistance, they cannot keep the power supply line running safely and stably under flame conditions. In the event of a fire, the cable will quickly catch fire and stop power supply, which is not conducive to the evacuation of personnel. Evacuation and fire rescue. Contents of the invention [0003] The purpose of the present invention is to provide a rated voltage 8.7 / 10kV cross-linked polyethylene insulated fire-resistant and flame-retardant power cable, which is suitable for connecting cables between 10kV transfo...

AI Technical Summary

Problems solved by technology

Because ordinary XLPE insulated power cables do not have fire resistance, they cannot keep the power supply line running safely and stably under flame conditions. In the event of a fire, the cable will quickly catch fire and stop power supply, which is not conducive to the evacuation of personnel. Evacuation and Fire Rescue

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