A cable quality detection device and system

By designing conductive clamps and test bridges, and utilizing the four-wire principle testing method, the problem of excessive loop resistance in cable testing was solved, achieving high precision and stability in cable resistance testing.

CN224383360UActive Publication Date: 2026-06-19广州南网科研技术有限责任公司
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Patent Information

Application Number
CN202521388805.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-03
Publication Date
2026-06-19
Estimated Expiration
2035-07-03

AI Technical Summary

Technical Problem

In existing technologies, excessive loop resistance during cable testing leads to decreased resistance testing accuracy. This is especially problematic in complex terrains or environments where connecting wires are prone to loosening or detachment, introducing additional resistance.

Method used

A cable quality inspection device is adopted, which includes at least two conductive clamps and a test bridge. The conductive clamps are connected by an intermediate wire. The clamps are designed with a "匚" shape to hold the cable under test. The four-wire test method is used to eliminate the influence of wire resistance and contact resistance.

Benefits of technology

It improves the accuracy and stability of cable resistance testing, reduces additional resistance and contact resistance, ensures stable cable connection in complex environments, and enhances test accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a cable quality testing device and system, applicable to the field of cable testing technology. The device includes at least two conductive clamps and a test bridge; the two conductive clamps are connected by a central wire; one conductive clamp is used to connect a first cable to be tested, and the other conductive clamp is used to connect a second cable to be tested; each conductive clamp includes a first clamp body and a second clamp body; the first clamp body includes a first frame, a second frame, and a third frame connected in sequence to form a U-shaped receiving space; the first frame has a screw hole, and the second clamp body is screwed into the receiving space through the screw hole, forming a clamping opening with the third frame for holding the cable to be tested; the test bridge has a positive test terminal and a negative test terminal; the positive test terminal is used to connect to the first cable to be tested, and the negative test terminal is used to connect to the second cable to be tested. This device has low additional resistance and a small overall resistance circuit, effectively improving the accuracy of cable resistance testing.
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