What the Data for This Category Looks Like
Primary document sources for power grid equipment investment research include industry standards, supplier technical white papers, equipment operation and maintenance logs, bidding documents, and power grid operation reports. Document update frequency varies by content type: industry standards are revised every 1 to 2 years, operation and maintenance logs are updated daily or per project cycle, and bidding documents are released with individual projects. Documents include structured parameter tables, equipment wiring diagrams, and long technical descriptions. Common fields include equipment model, rated voltage, insulation grade, and service life. Supported units include professional power industry units such as kV, A, Ω, and kg.
Constraints for Document Parsing and Chunking
Parsing must retain the correspondence between fields and units for structured parameter tables in power grid equipment documents. It must not break the association of parameters in the same group during chunking. Parsing must synchronously extract image-text association information, as a large number of equipment wiring diagrams and 3D models are bound to text paragraphs. This prevents text from being separated from its corresponding diagrams. Parsing tasks must adapt to large files and long-running scenarios, as individual bidding documents or operation and maintenance log collections have large file sizes. Parsing must accurately exclude non-core redundant content such as fixed headers and footers from some documents. This prevents invalid information from being included in chunks.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
PARSE_IMAGE_ENABLE | Enabled | Power grid equipment documents contain many wiring diagrams and parameter schematics. Parsing must retain image-text association information |
CHUNK_SIZE | 800–1200 characters | Power grid equipment documents include long parameter paragraphs and table blocks. This setting avoids splitting the same group of technical parameters |
PARSE_TABLE_STRUCTURE | Retain fields and units | Parameter tables in power grid equipment documents include fields with units such as rated voltage (kV), rated current (A). Parsing must retain the complete structure |
UPLOAD_FILE_MAX_SIZE | 500 MB | Individual power grid equipment bidding documents or operation and maintenance log collections have large file sizes. This setting supports large file uploads |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Parsing large technical white papers requires significant time. This setting prevents mid-task timeout |
RECALL_CHUNK_THRESHOLD | Calibrated via actual testing | The setting must match the parameter density of power grid equipment documents. This avoids recalling redundant content or missing key parameters |
The parameter values provided on this page are common recommended starting points for configuration. Actual values are affected by material format, data volume, and business rules. Specific issues require individual analysis, and it is recommended to test on your own samples before finalizing settings.
Three Common Misconfigurations
- Phenomenon: No image content appears in parsing results after uploading a PDF document. Cause: The
PARSE_IMAGE_ENABLEconfiguration is not enabled, and the association between images and corresponding text paragraphs is not maintained. - Phenomenon: No parsed content appears after uploading an HTML interface document generated by javadoc. Cause: Parsing rules for HTML documents are not configured, and parameter content within structured tags is not extracted.
- Phenomenon: Equipment parameters and corresponding wiring diagrams are separated in chunking results. Cause: The
CHUNK_SIZEis set too small, which breaks the paragraph boundary where images and text are associated during chunking.
How to Confirm Proper Configuration
- Upload a single PDF document containing equipment wiring diagrams, and check whether the OCR text of the image is associated with the corresponding paragraph in the parsing result.
- Upload an HTML interface document generated by javadoc, and check whether the parsing result includes structured content such as interface parameters and return values.
- View the chunking result preview, and confirm that parameters in the same group of equipment are not split into different chunks.
- Upload a single power grid equipment operation and maintenance log exceeding 200 MB, and confirm that the parsing task does not trigger a timeout error.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-14.