Power cable quality detection method

Abstract

The invention discloses a power cable quality detection method comprising the following seven steps: sampling, resistivity detection, conductor strength detection, insulation detection, cable overall strength measurement, cable thermal resistance and fire resistance measurement, and percent-of-pass measurement. The method is characterized by standardized steps, easy implementation, easy mastery, full detection coverage and high accuracy. Through the method, the quality of newly produced or purchased power cables can be conveniently and comprehensively evaluated, which, on one hand, prevents inferior power lines from being mixed into a power transmission and transformation grid to threaten safe operation of the grid, and on the other hand, helps power cable production and utilization enterprises to improve the level of internal management and reduce quality decrease of power cables due to human factors.

Description

technical field

[0001] The invention relates to a power cable quality detection method, which belongs to the technical field of power cable detection. Background technique

[0002] At present, in the process of power grid construction, general industrial and mining enterprises or civil power supply, the quality of power cables is an important factor directly related to the quality and safety of power supply, so whether it is a power cable manufacturer or a power cable user, all There are strict requirements on the quality of power cables. In practical applications, due to the influence of various factors such as raw materials, production equipment and personnel, the performance parameters of cables produced in the same batch often exist. Therefore, it is necessary to carry out strict quality inspection for each batch of power cables produced or newly purchased and used. However, the current quality inspection of power cables mainly depends on the manufacturer through large-s...