GB/T 14048.11-2024 PDF English
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Low-voltage switchgear and controlgear - Part 6-1: Multiple function equipment - Transfer switching equipment
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Low-voltage switchgear and controlgear -- Part 6-1: Multiple function equipment -- Transfer switching equipment
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Low-voltage switchgear and control equipment -- Part 6: Multi-function electrical 1: Automatic Transfer Switching Equipment
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GB/T 14048.11-2024: Low-voltage switchgear and controlgear - Part 6-1: Multiple function equipment - Transfer switching equipment
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GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 29.120.40; 29.130.20
CCS K 30
Replacing GB/T 14048.11-2016
Low-voltage switchgear and controlgear - Part 6-1.Multiple
function equipment - Transfer switching equipment
(IEC 60947-6-1.2021, MOD)
Issued on. APRIL 25, 2024
Implemented on. NOVEMBER 01, 2024
Issued by. State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword... 4
Introduction... 8
1 Scope... 11
2 Normative references... 12
3 Terms, definitions, symbols and abbreviated terms... 13
3.1 Transfer switching devices... 14
3.2 Operation of TSE... 16
3.3 Main contact positions... 19
3.4 Symbols and abbreviated terms... 19
4 Classification... 20
5 Characteristics... 21
5.1 Summary of characteristics... 21
5.2 Type and characteristics of equipment... 21
5.3 Rated and limiting values for the main circuit... 23
5.4 Utilization category... 25
5.5 Control circuits... 25
5.6 Auxiliary circuits... 26
6 Product information... 26
6.1 Nature of information... 26
6.2 Marking... 26
6.3 Instructions for installation, operation and maintenance, decommissioning and
dismantling... 29
6.4 Environmental information... 30
7 Normal service, mounting and transport conditions... 30
8 Constructional and performance requirements... 30
8.1 Constructional requirements... 30
8.2 Performance requirements... 33
8.3 Electromagnetic compatibility (EMC)... 39
9 Tests... 41
9.1 Kinds of tests... 41
9.2 Type test... 41
9.3 Routine tests... 69
9.4 Environmental tests... 71
Annex A (normative) Assignment of utilization categories based on results of tests. 73
Annex B (informative) Items subject to agreement between manufacturer and user. 74
Annex C (informative) Controller... 75
Annex D (normative) Multi-source transfer switching equipment... 91
Annex E (normative) Bus-tie transfer switching equipment... 97
Annex F (normative) Bypass transfer switching equipment... 106
Bibliography... 114
Foreword
This document was drafted in accordance with the rules given in GB/T 1.1-2020,
Directives for standardization - Part 1.Rules for the structure and drafting of
standardizing documents.
This document is Part 6-1 of GB/T 14048, Low-voltage switchgear and controlgear.
The following parts have been issued under GB/T 14048.
-- Part 1.General rules;
-- Part 2.Circuit-breakers;
-- Part 3.Switches, disconnectors, switch-disconnectors and fuse-combination
units;
-- Part 4-1.Contactors and motor-starters - Electromechanical contactors and
motor-starters (Including motor protector);
-- Part 4-2.Contactors and motor starters - Semiconductor controllers and
starters for AC motors (including soft starters);
-- Part 4-3.Contactors and motor-starters - AC semiconductor controllers and
contactors for non-motor loads;
-- Part 5-1.Control circuit devices and switching element - Electromechanical
control circuit devices;
-- Part 5-2.Control circuit appliances and switching elements - Proximity
switches;
-- Part 5-3.Control circuit devices and switching elements - Requirements for
proximity devices with defined behaviour under fault conditions (PDDB);
-- Part 5-4.Control circuit devices and switching elements - Method of assessing
the performance of low-energy contacts - Special test;
-- Part 5-5.Control circuit devices and switching elements - Electrical
emergency stop device with mechanical latching function;
-- Part 5-6.Control circuit devices and switching elements - DC interface for
proximity sensors and switching amplifiers (NAMUR);
-- Part 5-7.Control circuit devices and switching elements - Requirements for
proximity devices with analogue output;
-- Part 5-8.Control circuit devices and switching elements - Three-position
enabling switches;
-- Part 5-9.Control circuit devices and switching elements - Flow rate switches;
-- Part 6-1.Multiple function equipment - Transfer switching equipment;
-- Part 6-2.Multiple function equipment control and protective switching
devices (or equipment) (CPS);
-- Part 7-1.Ancillary equipment - Terminal blocks for copper conductors;
-- Part 7-2.Ancillary equipment - Protective conductor terminal blocks for
copper conductors;
-- Part 7-3.Ancillary equipment - Safety requirements for fuse terminal blocks;
-- Part 7-4.Ancillary equipment - PCB terminal blocks for copper conductors;
-- Part 7-5.Ancillary equipment - Terminal blocks for aluminium conductors;
-- Part 8.Loaded thermal protection (PTC) control units for rotating electrical
machines;
-- Part 9-1.Active arc-fault mitigation systems - Arc quenching devices;
This document replaces GB/T 14048.11-2016, Low-voltage switchgear and controlgear
- Part 6-1.Multiple function equipment - Transfer switching equipment. Compared with
GB/T 14048.11-2016, except for structural adjustment and editorial changes, the main
technical changes are as follows.
-- Add the provisions for the scope to which this document does not apply (see
Clause 1; Clause 1 of the 2016 edition);
-- Update terms and definitions (see Clause 3; Clause 3 of the 2016 edition);
-- Add multi-source transfer switching equipment (see Clause 4, Annex D);
-- Add bus-tie transfer switching equipment (see Clause 4, Annex E);
-- Add bypass transfer switching equipment (see Clause 4, Annex F);
-- Change the definition of utilization category (see 5.4; 5.4 of the 2016 edition);
-- Change the marking requirements (see 6.2; 6.2 of the 2016 edition);
-- Add requirements for clearances and creepage distances (see 8.1.6);
-- Add requirements and tests for mechanical and electrical interlock (see 8.2.1.2,
9.2.3.2);
-- Add requirements for operating sequences (see 6.3);
-- Change the requirements for rated short-time withstand current (see 5.3.6.2,
8.2.5.1, 9.2.5.2; 5.3.6.1, 8.2.5.1, 9.3.4.3 of the 2016 edition);
-- Change the requirements for electromagnetic compatibility (see 8.3, 9.2.8; 8.3,
9.5 of the 2016 edition);
-- Add test sequence V – critical load current performance of equipment with a
DC rating (see 8.2.6, 9.2.7).
This document adopts IEC 60947-6-1.2021 Low-voltage switchgear and controlgear -
Part 6-1.Multiple function equipment - Transfer switching equipment by modification.
This document has made the following structural adjustments compared to IEC 60947-
6-1.2021.
-- 3.1 corresponds to 3.3 of IEC 60947-6-1.2021; 3.2 corresponds to 3.4 of IEC
60947-6-1.2021; 3.3 corresponds to 3.5 of IEC 60947-6-1.2021; 3.4
corresponds to 3.6 of IEC 60947-6-1.2021;
-- Add Annex C ~ Annex F.
The technical differences between this document and IEC 60947-6-1.2021 and their
reasons are as follows.
-- Use the normatively referenced GB/T 14048.3 to replace IEC 60947-3.2020,
to adapt to our country's technical conditions and increase operability (see
3.2.5, 9.2.6.1);
-- Add the terms and definitions for specific transfer switching equipment in
3.1.6 to adapt to our country's technical conditions and increase operability;
-- Add the terms and definitions related to purposely introduced time delays in
3.2.11 to adapt to our country's technical conditions and increase operability;
-- Add multi-source transfer switching equipment [see Clause 4 f) and Annex D]
to adapt to our country's technical conditions and increase operability;
-- Add bus-tie transfer switching equipment [see Clause 4 f) and Annex E] to
adapt to our country's technical conditions and increase operability;
-- Add bypass transfer switching equipment [see Clause 4 f) and Annex F] to
adapt to our country's technical conditions and increase operability;
-- According to the product technical requirements, change the description of the
utilization category and add the relevant performance requirements of AC-33i
to adapt to our country's technical conditions and increase operability;
-- Modify Figure 1 to introduce the relevant definition of purposely introduced
time delays in 3.2.11 to adapt to our country's technical conditions and
increase operability;
-- Delete 9.2.8.2.6 in IEC 60947-6-1.2021 to avoid conflicts with the relevant
provisions on power-frequency magnetic field in 8.3.1 General requirements.
This document also makes the following editorial modifications.
-- Add controller related content (see Annex C).
Please note that some of the contents of this document may involve patents. The issuing
organization of this document is not responsible for identifying patents.
This standard was proposed by China Electrical Equipment Industry Association.
This document shall be under the jurisdiction of National Technical Committee 189 on
Low-voltage Apparatus of Standardization Administration of China (SAC/TC 189).
Drafting organizations of this document. Shanghai Electrical Apparatus Research
Institute, Schneider Wingoal (Tianjin) Electric Equipment Co., Ltd., Changshu
Switchgear Mfg. Co., Ltd.(former Changshu Switchgear Plant), Shanghai Liangxin
Electrical Co., Ltd., Guizhou Taiyong-changzheng Technology CO., LTD., Zhejiang
Chint Electrics Co., Ltd., Siemens Ltd. China, Delixi Electric Ltd., Zhejiang Tianzheng
Electric Co., Ltd., Suo Gao Mei Suo Ke Man Electric (Shanghai) Co., Ltd., China
Inspection and Testing Technology Research Institute Co., Ltd., Gongli Automation
Technology (Ningbo) Co., Ltd., Schneider Electric (China) Co., Ltd. Shanghai Branch,
EATON Electric Limited, Xia’men Hongfa Electrical Safety & Controls Co., Ltd.,
Zhejiang People Electric Appliance Co., Ltd., Jiangsu Daqo Kfine Switch Co., Ltd.,
ABB Xiamen Low Voltage Equipment Co., Ltd., Radin Electrical Technology Co., Ltd.,
Shanghai AEG Enterprise Development Co., Ltd., Zhejiang Modern Electric Co., Ltd.,
Baoding Fuyang Electric Power Technology Co., Ltd.
Main drafters of this document. Yin Tianwen, Chen Hongqun, Jia Feng, Gu Yiwen, Xu
Dujiang, Zhang Zhiyu, Guo Dexin, Tang Guangqiang, Song Zhiwen, Liu Jinmiao, Ye
Jianhua, Xu Liang, Peng Jun, Liu Zhenzhong, Zhou Hui, Zhang Xieli, Bao Zhizhou,
Qian Xingyong, Huang Tianyi, Li Yongfang, Zhu Xiaoge, Dan Hailong, Zhao
Yangyang.
The previous versions of this document and the documents which are replaced by this
document are as follows.
-- First published in 2002 as GB/T 14048.11-2002, first revised in 2008, and
second revised in 2016;
-- This is the third revision.
1 Scope
This document applies to transfer switching equipment (TSE), to be used in power
systems for ensuring the continuity of the supply and allowing the energy management
of the installation, by transferring a load between power supply sources, the rated
voltage of which does not exceed 1 000 V AC or 1 500 V DC.
2 Normative references
The following documents are referred to in the text in such a way that some or all of
their content constitutes requirements of this document. For dated references, only the
edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
GB/T 2423.2-2008, Environmental testing for electric and electronic products -
Part 2.Test methods - Tests B. Dry heat (IEC 60068-2-2.2007, IDT)
GB 4824-2019, Industrial, scientific and medical equipment - Radio-frequency
disturbance characteristics - Limits and methods of measurement (CISPR 11.2016,
IDT)
3 Terms, definitions, symbols and abbreviated terms
For the purposes of this document, the terms and definitions given in GB/T 14048.1-
2023, and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the
following addresses.
4 Classification
Transfer switching equipment is classified according to.
5 Characteristics
The rated operational current of TSE is stated by the manufacturer according to
subclause 5.3.2.3 of GB/T 14048.1-2023 for uninterrupted duty. It is possible for a
device to have several Ie, depending on utilization category and operational voltages Ue.
6 Product information
Subclause 6.2 of GB/T 14048.1-2023 applies, where applicable, and according to Table
2 below.
In addition to Table 2, all controls accessible to the operator shall be marked to indicate
their function.
7 Normal service, mounting and transport conditions
Clause 7 of GB/T 14048.1-2023 applies.
Standard conditions of vibration are defined in footnote b of Table Q.1 of GB/T
14048.1-2023.
8 Constructional and performance requirements
The main moving contacts of all phase poles of the switching device of a multipole TSE
shall be so mechanically coupled that they make and break substantially together,
whether operated manually, remotely, or automatically.
Parts including stored charge (capacitors) that are removable for servicing (such as coil
replacement), installation, or disconnection shall present no risk of electric energy
hazard after disconnection.
9 Tests
The following tests shall be applied to all possible combinations of manual, remote and
automatic operated transfer switches, respectively.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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