NB/T 10883.3-2023
Drawing standards for hydropower projects Part 3: Metal structures (English Version)

Standard No.

NB/T 10883.3-2023

Language

Chinese, Available in English version

Release Date

2023

Published By

Professional Standard - Energy

Latest

NB/T 10883.3-2023

Introduction

Analysis of the standard technical framework

Technical modules	Core requirements	Innovation points
3D drawing	Specify the specifications for the entire process of model construction, collaborative design, and drawing annotation	Incorporate exploded view and 3D annotation requirements for the first time
Hydraulic system	Specify the rules for drawing component symbols and identifying medium flow direction	Add a simplified representation method for subsystems
General drawing of gate hoist	Distinguish between the tables of technical characteristics of fixed/mobile/hydraulic types	Strengthen safety protection reminder requirements

---

Key term analysis

3D collaborative design: Based on BIM technology, multi-disciplinary data sharing such as gates and hoists can be realized. For example, a power station project reduced design conflicts by 30% through a collaborative platform.

Synthetic view: A new way to express symmetrical structures, which can reduce the number of views by 50% when applied to the general drawing of trash racks.

---

Implementation and application suggestions

1. Transitional measures: Complete the update of drawing software templates before November 26, 2023, and focus on adjusting the material table format (see Appendix A for details)
2. Training focus: 3D annotation technology, simplified representation of hydraulic systems, and new characteristic table filling specifications
3. Quality control: Establish a matching checklist for view types and equipment types (such as mobile gate hoists must include track details)

---

Technology evolution analysis

Compared with the 2010 version of the standard, this version has the following major breakthroughs:

• Added Chapter 7 Requirements for the entire process of 3D drawing
• Detailed hydraulic gate hoists schematic drawing specifications (Article 5.5)
• Supplementary illustrations of 11 new materials (Appendix B)

Typical application case: The gate system of the Baihetan Hydropower Station adopts the 3D annotation technology of this standard to control the installation error within ±2mm.

NB/T 10883.3-2023 history

• 2023 NB/T 10883.3-2023 Drawing standards for hydropower projects Part 3: Metal structures

Topics on standards and specifications

Standard and Specification