Power cable for monitoring and alarm system

Abstract

The invention discloses a power cable for a monitoring alarm system. The power cable comprises a cable core which comprises a cable core, wherein the cable core comprises a Y-shaped rubber framework. A temperature measurement wire core is arranged at the center of the Y-shaped rubber framework and includes two temperature measurement wire core conductors wrapped by thermosensitive insulation layers respectively and stranded into a beam to form a wrapped taped covering, power wire cores are respectively arranged in three gaps of the Y-shaped rubber framework, and each power wire core comprises two fan-shaped wire cores and a round wire core. Each fan-shaped wire core comprises a fan-shaped conductor and a silicone rubber insulation layer wrapped on the fan-shaped conductor, and the round wire core comprises a round conductor, a mica layer and a fluoroplastics insulation layer, and the mica layer and the fluoroplastics insulation layer are wrapped on the round conductor. A taped covering, a copper braid shielding layer and a sheath layer are wrapped outside the cable core in sequence. The temperature measurement conductors and the power cable are combined, therefore, temperature changes of the cable in use of the cable can be monitored, the alarm function can be achieved, electric appliances can be switched off in advance, or fire disasters can be avoided.

Description

technical field [0001] The invention mainly relates to the field of cables, in particular to a power cable for a monitoring and alarm system. Background technique [0002] Fire is one of the major disasters that cause personal injury and property loss. With the development of high-rise buildings, the wide application of automation technology and the increase of various electrical equipment, the risk of fire has increased. In this regard, various countries and regions have successively formulated increasingly strict fire protection regulations. At present, ships, oil production platforms, petrochemical enterprises, power plants and power stations, self-control center buildings, hotels and restaurants, high-rise buildings, tunnels and subways all need fire monitoring and automatic alarm devices to facilitate fire extinguishing, alarming, lighting, communication, etc. Our country also attaches great importance to the fire safety and lifesaving of buildings and other aspects. W...

AI Technical Summary

Problems solved by technology

The traditional cable sheath material has the disadvantage of poor wear resistance, which leads to cable damage caused by friction between the cable product and the outside world during installation and use, thus affecting the protection and insulation performance of the cable.

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