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GB/T 31989-2015Power supply safety for high voltage consumer (English PDF)

高压电力用户用电安全

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

September 11, 2015

Implementation date

April 1, 2016

Scope

GB/T 31989-2015 is the English-translated version of 高压电力用户用电安全.

GB/T 31989-2015 is the Chinese standard "Power Supply Safety for High Voltage Consumer".

Its scope clause reads: This Standard specifies the basic safety requirements for power supply and self-contained emergency power supply configuration, equipment configuration, safety management, operation management of high voltage consumer (hereinafter referred to as "consumer").

This Standard is applicable to the power supply safety work for the 10kV and above consumers. The power supply safety work for the 1kV above and 10kV below consumers can refer to this Standard to use.

Its clauses include terms and definitions; general; equipment configuration; safety management; operation management. It was issued by the General Administration of Quality Supervision, Inspection and Quarantine on SEPTEMBER 11, 2015 and took effect on APRIL 1, 2016.

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Document preview — GB/T 31989-2015

National Standard of the People's Republic of China

ICS: 29.020
Classification: C 65

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword3
1 Scope4
2 Normative References4
3 Terms and Definitions6
4 General8
5 Consumer's Electric Power Supply and Self-Contained Emergency Power Supply Configuration8
6 Equipment Configuration9
7 Safety Management11
8 Operation Management13
Bibliography18

Foreword

This Standard was drafted as per the rules specified in GB/T 1.1-2009.

1 Scope

This Standard specifies the basic safety requirements for power supply and self-contained emergency power supply configuration, equipment configuration, safety management, operation management of high voltage consumer (hereinafter referred to as "consumer").

This Standard is applicable to the power supply safety work for the 10kV and above consumers.

The power supply safety work for the 1kV above and 10kV below consumers can refer to this Standard to use.

2 Normative References

The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this standard.

GB 1094.1 Power Transformers - Part 1: General

GB 1984 High-Voltage Alternating-Current Circuit-Breakers

GB/T 2900.50 Electrotechnical Terminology - Generation, Transmission and Distribution of Electricity - General

GB 3906 Alternating-Current Metal-Enclosed Switchgear and Controlgear for Rated Voltages above 3.6 Kv and up to and including 40.5 Kv

GB/T 11022 Common Specification for High-Voltage Switchgear and Controlgear Standards

GB/T 12325 Power Quality - Admissible Deviation of Supply Voltage

GB/T 12326 Power Quality - Voltage Fluctuation and Flicker

GB/T 13499 Application Guide for Power Transformers

GB/T 14285 Technical Code for Relaying Protection and Security Automatic Equipment

GB/T 14549 Power Quality - Harmonics in Public Supply Network

GB/T 15543 Power Quality - Admissible Three-Phase Voltage Unbalance Factor

GB/T 16434 Environmental Pollution Classification and External Insulation Selection for High Voltage Transmission Line, Power Plant and Substation

GB/T 17468 The Guide for Choice Power Transformers

GB 26859 Safety Code of Electric Power Industry - Part of Electric Lines

GB 26860 Safety Code of Electric Power Industry - Electric Part of Power Plants and Transformer Substations

GB 50061 Code for Design of 66kV or under Over-Head Electrical Power Transmission Line

GB 50140 Code for Design of Extinguisher Distribution in Buildings

GB 50150 Standard for Hand-Over Test of Electrical Equipment for Installation of Electrical Installations

GB 50168 Code for Construction and Acceptance of Cable System Electric Equipment Installation Engineering

GB 50173 Code for Construction and Acceptance of 35kv and under Over-Head Power Levels Electric Equipment Installation Engineering

GB 50194 Safety Code of Power Supply and Consumption for Installation Construction Engineering

GB 50217 Code for Design of Cables of Electric Engineering

GB 50229 Code for Design of Fire Protection for Fossil Fuel Power Plants and Substations

GB 50545 Code for Design of 110kv~750kv Overhead Transmission Line

DL/T 486 High-Voltage Alternating-Current Disconnectors and Earthing Switches

DL/T 587 Code for Operating Management of Microprocessor-Based Relaying Protection Equipment

DL/T 596 Preventive Test Code for Electric Power Equipment

DL/T 995 Testing Regulations on Protection and Stability Control Equipment

DL/T 5352 Technical Code for Designing High Voltage Electrical Switchgear

GA 1089 Public Security Risk Levels and Security Requirements for Power Facilities

JB/T 3855 High-Voltage Alternating-Current Vacuum Circuit-Breaker

JGJ 46 Technical Code for Safety of Temporary Electrification on Construction Site

3 Terms and Definitions

The following terms and definitions specified in GB/T 2900.50 are applicable to this document.

3.3 [Power] consumer The party receiving the power supply from the grid and power plant.

3.7 [Electrical equipment] defect the upper and lower levels of cooperation, 110kV and below device is suitable for adopting the integrated digital protection device with the protection, control, measurement, acquisition and communication functions. The relay protection device with voltage level 220kV and above shall be configured by the duality principle.

3.1 High voltage, HV

The voltage level exceeding 1kV.

NOTE: In specific condition, it indicates the transmission voltage level in the power system.

3.2 Electric power utilization

The behavior of using electricity for a intended purpose.

3.4 Important power consumer

The electric power utilizing organizations or electric power utilizing sites having specific reliability requirements for the power supply, which take a crucial position in the social, political, economic life of certain region (city) or country; the power-off of which may lead to personal injury and death, greater environmental pollution, greater political impact, greater economic losses, and serious confusion of social and public order.

3.5 Double power supply

Two buses from two different substations, respectively, or two buses in the same substation with different power incoming lines; two power supplies generating load electricity to the same consumer.

3.6 Double circuit

Two power supply lines generating load electricity to the same consumer.

6 Equipment Configuration

6.3.4 The low-voltage configured electronic release shall combine the load characteristics to have the delay or instantaneous protection function.

6.4 Automation and communication device

6.4.1 35kV and 110kV substation (power distribution station) shall be equipped with automation system; 220kV-and-above substation shall be equipped with monitoring system, and shall adopt the integrated monitoring system.

6.4.2 The automation system shall not only ensure the equipment operation monitoring and accident analysis processing, but also satisfy the requirements for dispatching the automation system to exchange data at the same time. When dispatching the automation system to exchange date, it shall meet the requirements for the safety and protection of secondary system, and shall be equipped with uninterruptible power supply and time synchronization system.

6.4.3 The monitoring host in the 220kV-and-above voltage level substation shall adopt dual-computer redundancy configuration; the monitoring host in 110kV-and-below substation shall adopt the single-computer redundancy configuration.

6.4.4 Proper communication mode shall be selected according to the actual situations and specific requirements of substation (power distribution station).

6.5 Electric energy metering device

6.5.1 The consumer shall not start the metering cabinet, box arbitrarily, or add lead seal to the instrument; shall not move, change, damage, forge the electric energy metering device arbitrarily.

6.5.2 The metering device, acquiring device and other devices equipped to the consumer shall be protected by the consumer. In case of the loss or damage, and etc., the power supply enterprise shall be informed immediately.

7 Safety Management

7.1 General requirements

7.1.1 The consumer shall carry out the safety management work according to the provisions of laws and regulations, and requirements of relevant national and industrial standards like GB 26859, GB 26860, GB 50229, GB 50140, GA 1089 and etc..

b) For the consumer not setting the centralized monitoring center or monitoring center.

1) 35kV-and-above voltage level substation shall be arranged special personnel to be on-duty for 24h in the whole day; no less than 2 personnel for each shift, and one of the two ones shall be designated as shift leader; […]

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 18 pages — is available in the English PDF.

Referenced standards

Normative references

GB 3906 · GB/T 16434 · DL/T 486 · DL/T 596 · GA 1089 · JGJ 46

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