NB/T 10883.1-2023
Hydropower Engineering Drawing Standards Part 1: Basic Drawing (English Version)
- Standard No.
- NB/T 10883.1-2023
- Language
- Chinese, Available in English version
- Release Date
- 2023
- Published By
- Professional Standard - Energy
- Latest
- NB/T 10883.1-2023
- Replace
- DL/T 5347-2006
- Introduction
Background of Standard Revision and Technological Evolution
As an alternative standard to DL/T 5347-2006, NB/T 10883.1-2023 mainly adapts to the development needs of 3D design technology, adds color drawing specifications and 3D drawing chapters, adjusts the drawing extension size and title bar format, and the revisions involve 12 key technical points.
Comparison of core revisions
Dimensions 2006 Edition 2023 Edition Three-dimensional drawing Not included New independent chapter (Chapter 6) Drawing size Long side lengthened by 1/2 times Allowed to lengthen by 1/4 times (Table 3.1.3) Line types 8 categories 11 categories (newly added thick double-dotted dash line, etc.) Font requirements HZTXT font Cancel the mandatory requirement of HZTXT
Key technical points
1. Drawing specification system
Frame format:Clearly define the principles for selecting horizontal/vertical frames (Clause 3.1.1), and add the requirement of extending the center mark by 5mm (Clause 3.1.5).
Title bar:Foreign-related projects require Chinese and foreign language comparison (Figure 3.2.2-4), and the modification column should record version changes (Clause 3.2.4).
2. 3D drawing implementation
The model is required to be built based on actual size (Clause 6.0.1), support multi-view observation and 2D drawing generation, and it is recommended to divide the modeling area according to profession (Clause 6.0.2).
3. Special expression standards
Surface drawing: Parallel lines are used for cylinders (Figure 4.7.2), and radial lines are used for cones (Figure 4.7.3).
Elevation annotation method: Three attenuation lines are required for water surface elevation (Figure 5.3.7-3), and the characteristic water level should be marked with the name.
Implementation suggestions
Transition plan: It is recommended to complete the design template update before November 26, 2023, with key adjustments:
- Delete the review column in the title bar and add a version number field
- Establish LOD grading standards for 3D models
- Change the surface expression to the new standard straight line method
Common problems: When marking the pile number (Clause 5.3.8), it is necessary to add distinguishing marks when multiple systems coexist, and the axis turning points should be marked repeatedly.
NB/T 10883.1-2023 Referenced Document
- DL/T 5347-2006 Drawing standard for base of hydropower and water conservancy project
NB/T 10883.1-2023 history
- 2023 NB/T 10883.1-2023 Hydropower Engineering Drawing Standards Part 1: Basic Drawing
NB/T 10883.1-2023 Hydropower Engineering Drawing Standards Part 1: Basic Drawing has been changed from DL/T 5347-2006 Drawing standard for base of hydropower and water conservancy project.
