Novel sleeve casing for cable of primary equipment

Abstract

The invention discloses a novel sleeve casing for a cable of primary equipment, which comprises a soft insulation protection layer; a metal shielding net is arranged in the soft insulation protection layer; a sticking layer is arranged between the metal shielding net and the soft insulation protection layer; the two sides of the metal shielding net are respectively provided with two agraffs; and the second agraff is matched with the first agraff. The novel sleeve casing is a buckling type sleeve casing, which is of a tubular shape after being buckled, and has a plane structure after being unfolded. As the novel sleeve casing has a buckling type structure; when the novel sleeve casing is replaced, the sleeve casing is unfolded and coated on the periphery of the cable, and then is buckled into a sleeve shape; the power of the primary equipment is not needed to cut off; and the head of the cable does not need to dismount, power supply can not be influenced, the replacement is convenient and quick, the time and the effort are saved, the equipment can be prevented from being cut off, and the power supply quality is guaranteed; moreover, a city can be prevent from causing tremendous economic loss by power cut in each year. Moreover, the novel sleeve casing is also provided with a sleeve locking and connecting mechanism, which is convenient to fix the two ends of the sleeve casing, prevents the two ends of the sleeve casing from cracking, and prolongs the service life of the sleeve casing.

Description

technical field [0001] The invention relates to a new type of sheath tube for primary equipment cables. Background technique [0002] The cables on the primary equipment used in the ultra-high voltage power transmission and transformation industry are mainly used for the transmission and distribution of secondary load power, and are the link between primary equipment, secondary equipment and comprehensive self-equipment. Since the primary electrical equipment and cables are installed outdoors, they are exposed to wind, sun, rain and snow all year round. Although the exposed cables are also protected by sheaths, the original sheath materials are prone to aging and corrosion. It plays an important role in protecting the cable. In order to avoid affecting the safe operation of primary equipment, the cable sheath needs to be replaced. When the sheath needs to be replaced, since the cable head must be pulled out, and then a new sheath tube must be inserted through the cable hea...

AI Technical Summary

Problems solved by technology

Such a replacement procedure will inevitably affect the power supply reliability of the equipment, increase the number of power outages of the equipment, and waste manpower and material resources

Since the above-mentioned problems generally exist in substations of various voltage levels, it not only affects the safe operation of the equipment, but also increases the workload of the staff, consumes a lot of manpower and material resources, and more importantly, it will bring huge economic benefits. Losses, according to statistics from the Zibo Management Office of Shandong Province, more than 500 aging cable sheaths need to be replaced by power outages every year, and the power outages last for more than 200 hours, causing various economic losses of tens of millions of yuan

Images