Device and method for sampling metal sheath of ultrahigh-voltage metal sheath cable

Abstract

The invention relates to a sampling device and a sampling method for a metal sheath of an ultrahigh-voltage metal sheath cable. Comprising a fixed platform, a left upper clamping plate and a right upper clamping plate, a left guide notch and a right guide notch are symmetrically formed in the fixed platform in the length direction of the fixed platform. A suspended fixing support is arranged between the left guide groove opening and the right guide groove opening. A left lower clamping plate is correspondingly mounted at the bottom of the left upper clamping plate; a right lower clamping plate is correspondingly mounted at the bottom of the right upper clamping plate; the device is simple in structure and ingenious in design, compared with the prior art, manual work is replaced, the longitudinal cable metal sheath sampling device is adopted, the cost can be saved, waste is reduced, the reliability and accuracy of cable sampling are improved, the device is suitable for cables with different diameters, operation is easy and convenient when the device is adopted for cable sampling, and the sampling efficiency is improved. The operation safety is high, the injury of personnel in operation can be reduced, the cutting depth of the metal sheath can be effectively controlled, and the cable core is prevented from being damaged.

Description

technical field [0001] The invention belongs to the technical field of electric wire and cable auxiliary tools, and in particular relates to an ultra-high voltage metal sheathed cable metal sheath sampling device and a sampling method. Background technique [0002] Ultra-high voltage metal-sheathed cables are used to transmit and distribute electric energy. This cable is often used in urban power grids, outgoing lines of power stations, external power supply of industrial and mining enterprises, and underwater transmission lines across rivers and seas. [0003] In recent years, due to the comprehensive planning and design of cities and the generalization of electrical applications, high-voltage and extra-high-voltage power cables have been used in many fields, and the length and performance of cables have increased significantly. Workers have strengthened the research on ultra-high voltage smooth metal-sheathed cables. High-voltage and ultra-high-voltage power cable technolo...

AI Technical Summary

Problems solved by technology

The most commonly used method in the industry is to use reciprocating saws or hacksaw blades for manual sampling, which is time-consuming and laborious. The sampling cannot meet the standard requirements and the error is relatively large. During the sampling process, it will cause great damage to the insulating core inside the cable, and sometimes The high-voltage test fails, and sometimes the damage is not large. The test is barely qualified, but the service life of the cable is reduced. Therefore, continuing to change this method can change the use of manual sampling of the metal sheath of the ultra-high voltage metal sheath cable, resulting in damage to the cable core. The cable sheath stripping device that reduces the labor intensity, saves time, effectively controls the cable from damage, and ensures the quality of the ultra-high voltage cable

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