What this category of data looks like
Data for nuclear power operation policy and regulatory basis Q&A comes from official regulatory documents issued by the National Nuclear Safety Administration and the National Energy Administration, as well as internal operation compliance systems and industry standard documents of nuclear power operation enterprises. Updates follow new policy releases and adjusted regulatory requirements, with no fixed cycle. Most documents are in PDF format, with fixed headers and footers containing document numbers, issuing units, and effective dates. The core structure is based on chapters and clauses, with fields including policy number, applicable unit scope, implementation clauses, compliance inspection items, and more. Some supporting compliance inspection data is in Excel format, containing fields such as unit identification, inspection time, and compliance status.
What constraints do these characteristics impose on the "document parsing and chunking" link
Official regulatory documents are often long, and a single document may contain compliance requirements for multiple units. Redundant header and footer information must be filtered during parsing to avoid interfering with chunking logic. Policy documents are structured by chapters and clauses, so chunking should retain clause integrity as much as possible, and avoid splitting continuous compliance clauses. Supporting Excel data contains multi-dimensional fields, so field association relationships must be retained during parsing to avoid losing the association between policies and implementation records during retrieval. No fixed update cycle means incremental parsing must be supported to accommodate re-uploads after policy revisions.
How to set the configurations
Reference only; verify against the target FastGPT release and deployment documentation.
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
PARSE_FILE_TIMEOUT_SECONDS | 600–900 seconds | Nuclear power policy documents are mostly long PDFs. Single-document parsing takes a long time, and the default timeout duration cannot cover the complete parsing process |
chunkSize | 800–1200 characters | Policy clauses are mostly paragraph-style. This character range can retain the integrity of a single clause or consecutive related clauses |
chunkSplitter | Split by chapter and paragraph | Nuclear power policy documents have clear chapter numbering and clause divisions. Splitting by chapter can retain the logical structure of the document |
customPdfParse | Enabled | Official policy PDFs have fixed headers and footers. Custom parsing can filter redundant non-content information such as document numbers and issuing units |
UPLOAD_FILE_MAX_SIZE | 2000 MB | Nuclear power policy documents include historical compliance files for multiple units. The volume of batch-uploaded files in a single package is large |
chunkSettingMode | Manual configuration | Chunking parameters must be adjusted for the long chapter characteristics of nuclear power policy documents to adapt to business retrieval needs |
Three common errors
- Phenomenon: A timeout error is triggered when uploading nuclear power policy PDFs for parsing, and a preset timeout status code is returned. Cause: The
PARSE_FILE_TIMEOUT_SECONDSparameter was not adjusted, and the default duration cannot cover the parsing time of long documents. - Phenomenon: When retrieving compliance inspection Excel data in the knowledge base, the returned entries are fewer than the source data, and specified overseas use location records are not included. Cause: Field association rules were not correctly configured when parsing Excel, and the matching logic for the "use location" field was not retained.
- Phenomenon: When retrieving policy Q&A results, the document number or issuing unit information corresponding to the clause is not returned. Cause: Only the main content was extracted during chunking, and auxiliary data fields were not retained, resulting in inability to associate policy basis during retrieval.
How to confirm the configuration is correct
- Upload a single nuclear power policy PDF with more than 500 pages. Check that the parsing process has no timeout errors, and confirm that the parsing time meets the preset threshold.
- Import the compliance inspection Excel file. Retrieve entries where the specified "use location" is overseas, and confirm that the number of returned entries matches the source data.
- View the chunked document fragments. Confirm that complete information such as policy clauses, document numbers, and issuing units is included, with no residual headers or footers.
- Adjust the
chunkSizeparameter to 1000 characters. Retrieve long policy clauses, and confirm that complete policy chapters are not split during chunking.
The configuration values listed above are common starting points. Adjust them based on your own specific samples and business requirements.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-28.