Investigation on the Implementation of the Single-Sheath Bonding Method for Power Cables
Bibliographic record
Abstract
Sheath bonding is an essential requirement for transmission and distribution cables. Three bonding methods are widely used in industry at present: solid bonding, single-point bonding, and cross bonding. The latter two are for solving the ampacity reduction problem caused by solid bonding. This paper presents an in-depth investigation of a new cable sheath bonding method called single-sheath bonding. The new method uses one of the cable sheaths as the return path for the fault current and thus eliminates the need for the ground continuity conductor (GCC). In this paper, various configurations to implement the single-sheath bonding method are proposed. Their performances are comprehensively evaluated and compared with those of the existing bonding methods through simulation and sensitivity studies. The results show that single-sheath bonding can achieve a similar performance of either single-point bonding or cross bonding with a lower cost. Therefore, single-sheath bonding can be an alternative to single-point bonding and cross bonding. The potential applications of the single-sheath bonding method are also clarified in the paper.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".