Determining Lightning-Critical Locations along Transmission Lines using LiDAR Data - a BC Hydro Approach
Why this work is in the frame
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Bibliographic record
Abstract
BC Hydro's high-voltage transmission lines are generally not shielded due to low keraunic levels. In addition, transmission lines in BC span across mostly rugged and mountainous terrains which would make the addition of shielding very costly. However, lightning performance remains an important consideration when designing transmission lines, especially in critical locations along the length of a line that are highly exposed to lightning. This article describes BC Hydro's methodology to determine lightning-critical locations based on advanced LiDAR data and implemented in an in-house developed tool. A casestudy for identifying locations critical to the overall lightning performance of a transmission line is presented. Validation of the proposed methodology against the historical lightning performance records is given. It is anticipated that a similar approach can be used by other power utilities to determine lightning critical locations, and to identify optimum design solutions.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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 it