Testing to Determine Whether a PetroSleeve Can be Used for an Electrical Connection to a Pipe for AC Mitigation
Bibliographic record
Abstract
The use of a mechanical electrical connection to a pipeline is tested to determine its’ viability. Historically, the installation of a cadweld on pipelines has been the method generally accepted for attaching an electrical connection to pipe. Cadwelds are usually serviceable. In the case of accommodating up to 800 amperes of current, up to 3 CAD welds have been used. In addition, there is a general feeling in the pipeline industry to avoid cadwelds, if possible, because they can create a heat affected zone and the possibility of cracking. Where pipelines traverse or parallel high voltage transmission lines, there exists the possibility of voltage and current induction when phase imbalance occurs. These current flows can approach 800 amps. If a cadweld is the main conduct at the pipe surface, burns, high heat, or connection malfunction can occur. This paper describes the testing undertaken to determine if a PetroSleeve installation could be used as a mechanical electrical connection suitable for conducting up to 800 amperes of current. Following the initial testing, three sleeves were installed on operating pipelines for AC Mitigation.
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How this classification was reachedexpand
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 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".