Armored Cable Assembly With External Ground Conductor Contact
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Solution Overview
Problem
Existing armored cables face challenges in maintaining effective grounding performance due to intermittent contact between the second ground conductor and the interlocked armor, which reduces the cable's ability to act as a reliable backup ground.
Innovation Solution
The armored cable assembly incorporates a SZ cabled core with a first ground conductor and multiple conductors wrapped in binder tape, along with a second ground conductor positioned outside the binder tape, aligned with the cable's longitudinal axis. This configuration ensures that the second ground conductor contacts the interlock armor at each helical convolution, enhancing the grounding path.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the second ground conductor is positioned between the valleys of conductors within the binder tape, then the cable structure is compact, but the grounding performance is reduced due to intermittent contact with the interlocked armor
Solution Approach 1:
The second ground conductor is extracted from the conventional position between conductor valleys and relocated to the cable exterior, positioned against the outer surface of the interlocked armor. This extraction resolves the intermittent contact issue by ensuring continuous grounding contact while maintaining structural simplicity through the natural alignment of the external conductor with the armor surface.
2Ease of manufacture
If the second ground conductor is positioned outside the binder tape between conductor valleys, then the manufacturing process is simple, but the grounding contact is intermittent and unreliable
Solution Approach 1:
The second ground conductor is repositioned from a radial position (between conductors) to an axial/external position (on cable exterior). This dimensional change allows the conductor to run parallel to the cable axis and maintain continuous contact with the interlocked armor's outer surface, ensuring reliable grounding without complicating the manufacturing process.
Data Source
AI summary
An armored cable assembly with grounding path component equipped armor and a method of producing the same is provided. The armored cable includes an SZ cabled core having a binder tape wrapped conductor bundle that includes a first ground conductor. A second ground conductor is positioned outside the binder tape such that it is aligned with the longitudinal axis of the SZ cable core and contacts the interlock armor at each helical convolution.