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GB/T 13399: Historical versions
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Technical specification for safety monitoring of steam turbine
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| GB/T 13399-2012 | English | 189 |
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Specification for safety monitoring devices of steam turbine
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| GB/T 13399-1992 | English | 239 |
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Specification for steam turbine safety monitoring devices
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Basic data
| Standard ID | GB/T 13399-2025 (GB/T13399-2025) |
| Description (Translated English) | Technical specification for safety monitoring of steam turbine |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | K54 |
| Classification of International Standard | 27.040 |
| Word Count Estimation | 21,224 |
| Date of Issue | 2025-12-02 |
| Date of Implementation | 2026-07-01 |
| Older Standard (superseded by this standard) | GB/T 13399-2012 |
| Issuing agency(ies) | State Administration for Market Regulation, Standardization Administration of China |
GB/T 13399-2025: Technical specification for safety monitoring of steam turbine
---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 27.040
CCSK54
National Standards of the People's Republic of China
Replaces GB/T 13399-2012
Steam Turbine Safety Monitoring Technical Specifications
Published on 2025-12-02
Implemented on July 1, 2026
State Administration for Market Regulation
The State Administration for Standardization issued a statement.
Table of contents
Preface III
1.Scope 1
2 Normative References 1
3.Terms and Definitions 1
4 General Rules 1
5.Technical Requirements 3
6.Factory testing of turbine safety monitoring devices and instruments.
7.Packaging, shipping, and transportation of steam turbine safety monitoring devices. 6.
8.Factory documents for the steam turbine safety monitoring device 6.
Appendix A (Normative) Test of Steam Turbine Safety Monitoring Instruments - Speed Measurement Device 7
Appendix B (Normative) Test of Steam Turbine Safety Monitoring Instruments - Displacement Measurement Devices 9
Appendix C (Normative) Test of Steam Turbine Safety Monitoring Instruments - Eccentricity Measuring Device 11
Appendix D (Normative) Test of Vibration Measurement Device for Steam Turbine Safety Monitoring Instruments 13
Reference 15
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents".
Drafting.
This document supersedes GB/T 13399-2012 "Technical Conditions for Safety Monitoring Devices of Steam Turbines" and is consistent with GB/T 13399-2012.
Compared to previous versions, aside from structural adjustments and editorial changes, the main technical changes are as follows.
a) A new chapter on "Terms and Definitions" and the terms and definitions for "Static Speed Error" and "Dynamic Speed Error" have been added (see Chapter 3);
b) The contents of the turbine safety monitoring instruments have been added (see 4.2);
c) The content of the turbine safety monitoring project has been changed (see 4.3, 3.2.2 of the.2012 version), and the main shaft eccentricity measuring device has been removed [see...].
The.2012 version 3.2.2e) added over-limit protection for time-related changes in rated parameters [see 4.3n];
d) The composition and categories of the turbine safety monitoring devices have been changed (see 4.4, 3.3 of the.2012 edition);
e) Added power switching requirements (see 4.5.1);
f) The operating temperature range of the instrument has been changed (see 4.5.2, 3.4.2 in the.2012 version);
g) The monitoring items for emergency shutdown procedures have been changed, from the time limit between the occurrence of the signal and the output of the monitoring device (see 4.5.7,.2012).
Version 3.4.7);
h) Added technical requirements for instruments or sensors (see 4.5.9);
i) The technical requirements for the speed measuring device have been changed (see 5.1, 4.1 of the.2012 edition);
j) The technical requirements for electrical overspeed protection devices have been revised (see 5.2, 4.2 of the.2012 edition), adding accuracy requirements for electrical overspeed protection.
(See 5.2.4);
k) The technical requirements for axial displacement measurement and protection devices have been changed (see 5.3, 4.3 of the.2012 edition);
l) The technical requirements for the differential expansion measuring device have been changed (see 5.4, 4.4 in the.2012 edition);
m) The technical requirements for the spindle eccentricity device have been changed (see 5.5, 4.5 in the.2012 edition);
n) The technical requirements for the bearing housing absolute vibration measurement device have been changed (see 5.6, 4.6 in the.2012 edition);
o) The technical requirements for shaft vibration measurement and protection devices have been changed (see 5.7, 4.7 of the.2012 edition);
p) The technical requirements for thermal expansion and valve/level measurement devices have been revised (see 5.8, 4.8 in the.2012 edition);
q) The technical requirements for the low lubricating oil pressure protection device have been changed (see 5.9, 4.9 in the.2012 edition);
r) The technical requirements for low vacuum protection devices have been changed (see 5.10, 4.10 in the.2012 edition);
s) The technical requirements for extraction pressure protection devices in extraction condensing steam turbines or extraction back-pressure steam turbines have been modified (see 5.11.2).
(2012 version 4.11.2)
t) The technical requirements for mechanical emergency shutdown protection indicators have been changed (see 5.12, 4.12 of the.2012 edition);
u) The technical requirements for the bearing and lubricating oil overheat protection device have been changed (see 5.13, 4.13 in the.2012 edition);
v) The technical requirements for low-pressure cylinder exhaust temperature have been changed (see 5.14, 4.14 in the.2012 edition);
w) The time recording device for the limit values of rated parameter variation and its technical requirements have been added (see 5.15);
x) The content of the factory test for the turbine safety monitoring device has been changed (see 6.2, 5.1 of the.2012 version), adding that it must be performed in accordance with the contract before leaving the factory.
Factory acceptance testing is required (see 6.4);
y) The packaging, shipping, and transportation details of the steam turbine safety monitoring device have been changed (see Chapter 7, Chapter 6 of the.2012 edition);
z) Added requirements for the technical documentation that should be provided at the time of delivery of the steam turbine safety monitoring device [see Chapter 8 d) and e)];
aa) Added testing methods for safety monitoring instruments (see Appendix A to Appendix D).
Please note that some content in this document may involve patents. The issuing organization of this document assumes no responsibility for identifying patents.
This document was proposed by the China Electrical Equipment Industry Association.
This document is under the jurisdiction of the National Technical Committee on Standardization of Steam Turbines (SAC/TC172).
This document was drafted by. Beijing Beizhong Steam Turbine & Generator Co., Ltd., and Shanghai Power Equipment Complete Set Design & Research Institute Co., Ltd.
Dongfang Electric Corporation Dongfang Turbine Co., Ltd., Hangzhou Turbine Power Group Co., Ltd., China Yangtze Power Group Co., Ltd.
Shanghai Electric Power Station Equipment Co., Ltd., Shanghai Steam Turbine Plant, Harbin Steam Turbine Plant Co., Ltd., Automatic Control Engineering Branch, Dongfang Electric
Pneumatic Automatic Control Engineering Co., Ltd.
The main drafters of this document are. Gong Xiangchen, Ma Xin, Zhang Zijian, Yang Yu, Wang Liyang, He Bin, Wang Junwei, Zhao Shan, Sun Hongyun, Bao Jinhua, and Du Jiguang.
Li Liang.
The release history of this document and the document it replaces is as follows.
---First published in.1992 as GB/T 13399-1992, and revised for the first time in.2012;
---This is the second revision.
Steam Turbine Safety Monitoring Technical Specifications
1 Scope
This document specifies the technical requirements, packaging, shipping, transportation, and factory documentation requirements for safety monitoring of stationary power generation turbines, and describes...
Corresponding experimental methods.
This document applies to the design, selection, and factory commissioning of safety monitoring devices for stationary power generation steam turbines (hereinafter referred to as "steam turbines").
For testing purposes, the design, selection, and factory commissioning of other types of steam turbine safety monitoring devices should refer to this guide.
2 Normative references
The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.
For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.
This document.
GB/T 3047.1 Basic Dimensions of Panels, Shelves and Cabinets in Height Increments of 20mm
GB/T 5578 Standard for Stationary Steam Turbines for Power Generation
GB/T 6075.1 Mechanical vibration – Measurement and evaluation of machine vibration on non-rotating parts – Part 1.General principles
GB/T 11348.1 Measurement and evaluation of radial vibration of rotating machinery shafts - Part 1.General principles
JB/T 2862 Technical Requirements for Steam Turbine Packaging
JJG644 Vibration Displacement Sensor Verification Procedure
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Speed static error
Measurement error when the steam turbine is at a fixed speed.
3.2
Speed dynamic error
Measurement errors during the variable speed process of a steam turbine.
4 General Rules
4.1 Function of Steam Turbine Safety Monitoring Device
The turbine safety monitoring device should be able to work in conjunction with the turbine control system, protection system, and other devices to ensure the safe and reliable operation of the turbine.
During turbine startup, operation, and shutdown, this device should be able to indicate the values of the turbine's main safety monitoring parameters; if parameters exceed limits during operation, it should...
It should be able to issue alarm or shutdown signals, and some monitoring devices should be able to provide survey and/or computer interface signals.
4.2 Contents of Steam Turbine Safety Monitoring Instruments
The safety monitoring instruments required for steam turbines shall comply with the provisions of GB/T 5578.They generally include the following items, which, during use, shall be determined according to...
...
