Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces TB/T 2311-2008 Surge protective devices for railway signal system. In addition to a number of editorial changes, the following main technical changes have been made with respect to TB/T 2311-2008:
——some terms and definitions of lightning protection devices are modified (see Clause 3; Clause 3 of Edition 2008);
——definition of voltage standing wave ratio of antenna feeder coaxial lightning arrester is added (see 3.36);
——the structure diagram of SPD is changed from hybrid representation method of component diagram and block diagram to block diagram only (see Figure 1; Figure 1 of Edition 2008);
——the classification method for SPD is modified; the definition and special requirements of SPD for railway signal system are specified and DC SPD for railway signal system is deleted (see 5.1; 5.2 of Edition 2008);
——capacity of terminals for connecting wire is modified (see 6.1.6; 6.1.5 of Edition 2008);
——requirements for the SPD disconnector of railway communication device are deleted (see 6.1.3 of Edition 2008);
——voltage protection level of parallel type AC power lightning protection box and the cooperation requirements for SPD and backup protection device are added (see 6.2.2);
——technical requirements for antenna feeder coaxial lightning arrester are added (see 6.2.5.2.3);
——test method for voltage protection level of parallel type AC power lightning protection box is added (see 7.3.1.3.4);
——cooperative test method for SPD and backup protection device in parallel type AC power lightning protection box is added (see 7.3.1.9);
——insulation resistance test for SPD connected to telecommunication and signaling circuits is added (see 7.3.3.3);
——test method for bit error rate of SPD connected to telecommunication and signaling circuits for digital circuits is added (see 7.3.3.6.2);
——capacitance test for SPD connected to telecommunication and signaling circuits is added (see 7.3.3.4):
——test method for antenna feeder coaxial lightning arrester is added (see 7.3.4.4.2);
——impulse waveforms for measured limiting voltage test of the SPD for railway signal system and the SPD connected to telecommunication and signaling circuits are modified (see 7.3.2.3.1 and 7.3.3.1.1; 8.4.3 of Edition 2008);
——test method for bit error rate of SPD connected to telecommunication and signaling circuits for digital circuits is added (see 7.3.3.6.2);
——temperature stability test for the terminal of lightning protection distribution cabinet is added (see 7.4.10);
——vibration test frequency range of outdoor type lightning protection device is modified (see 7.5.1; 8.7.1 of Edition 2008);
——test requirements for the nominal discharge current In for AC SPD used in low-voltage power circuit are deleted (see 8.4.5 of Edition 2008).
This standard was proposed by and is under the jurisdiction of Xi'an Railway Signal Research Co., Ltd.
The previous editions of the standard replaced by this standard are as follows:
TB/T 2311-1992, TB/T 2311-2002 and TB/T 2311-2008.
Lightning protection devices for electronic equipments in railway telecommunication, signaling, power supply systems
1 Scope
This standard specifies the terms and definitions, use environment, classification, technical requirements, test methods, inspection rules as well as marking, packaging, transportation and storage for synthetic lightning protection devices for electronic equipment in railway telecommunication, signaling, power supply systems with nominal AC voltage up to 1 000V (r.m.s. value) and DC voltage up to 1 500V.
This standard applies to lightning protection devices that limit the surges of indirect lightning effects and may be used by manufacturer for manufacturing and users for model selection. It applies to electronic equipment in railway telecommunication, signaling and power supply systems and may be referred by railway system and other department’s electrical and electronic equipment.
2 Normative references
The following referenced documents are indispensable for the application 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 2423.1-2008 Environmental testing - Part 2: Test methods - Tests A: Cold (IEC 60068-2-1:2007, IDT)
GB/T 2423.2-2008 Environmental testing - Part 2: Test methods - Tests B: Dry heat (IEC 60068-2-2:2007, IDT)
GB/T 2423.4-2008 Environmental testing for electric and electronic products - Part 2: Test method - Test Db: Damp heat, cyclic ( 12h+12h cycle) (IEC 60068-2-30: 2005, IDT)
GB/T 2423.10-2008 Environmental testing for electric and electronic products - Part 2: Tests methods - Test Fc: Vibration (sinusoidal) (IEC 60068-2-6:1995, IDT)
GB/T 3482-2008 Lightning test method for electronic equipments
GB 4208-2008 Degrees of protection provided by enclosure (IP code) (IEC 60529:2001, IDT)
GB/T 5169.10-2006 Fire hazard testing for electric and electronic products - Part 10: Glow/hot-wire based test methods - Glow-wire apparatus and common test procedure (IEC 60695-2-10:2000, IDT)
GB/T 14048.7-2006 Low-voltage switchgear and controlgear - Part 7-1: Ancillary equipment - Terminal blocks for copper conductors (IEC 60947-7-1:2002, IDT)
GB/T 17627.1-1998 High-voltage test techniques for low-voltage equipment - Part 1: Definitions, test and procedure requirements (eqv IEC 61180-1:1992)
GB 18802.1-2011 Low-voltage surge protective devices - Part 1: Surge protective devices connected to low-voltage power distribution systems - Requirements and tests (IEC 61643-1:2005, MOD)
GB/T 18802.21-2004
(IEC 61643-21:2000, IDT) Low-voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
TB/T 2310 Gas discharge tube for the lightning protection of railway signaling equipments
TB/T 2312 Zinc oxide varistor for the lightning protection of railway signaling equipments
3 Terms, definitions and abbreviations
3.1 Definitions
For the purposes of this standard, the following terms and definitions apply.
3.1.1
lightning protection device
a general term for devices that limit lightning transient overvoltages and divert lightning surge currents
Note: It contains surge protection devices and their derivatives, as well as coaxial antenna feeder lightning protection device without any nonlinear voltage elements. Lightning protection device is also referred to as lightning arrester.
3.1.2
surge protection device, SPD
device that is intended to limit transient overvoltages and divert surge currents. It contains at least one nonlinear element
3.1.3
voltage limiting type SPD
SPD that has high impedance when no surge is present, but will reduce it continuously with increased surge current and voltage
Note: Common examples of elements used in voltage limiting type SPDs are varistors, suppressor diodes and other non-linear ones.
3.1.4
voltage switching type SPD
SPD that has high impedance when no surge is present, but can have a sudden change in impedance to a low value in response to a voltage surge
Note: Common examples of elements used in voltage switching type SPDs are gas discharge tubes, thyristors (silicon-controlled rectifiers) and bidirectional triode thyristors.
3.1.5
combination type SPD
SPD that incorporates both voltage switching elements and voltage limiting elements
3.1.6
one-port SPD
SPD is connected with the protected line in parallel. A one-port SPD may have separate input and output connections. No specific series impedance is inserted between these terminals
3.1.7
two-port SPD
SPD having two sets of ports, i.e. input and output terminals. There is specific series impedance connected between separate input and output terminals
3.1.8
multistage SPD
SPD with more than one voltage limiting elements; these voltage limiting elements may or may not be electrically separated by a series of elements; they may be either switching type or voltage limiting type
3.1.9
SPD used in low-voltage power circuits
SPD that limits the lightning transient overvoltage and overcurrent invading to the power supply equipment from the power feeder; including AC SPD used in low-voltage power circuits and DC SPD used in low-voltage power circuits.
3.1.10
AC power lightning protection box
power lightning protection device consisting of AC SPD used in low-voltage power circuits, SPD breaker, lightning counter, indicator light, and the power lightning protection device composed of alarm units to protect the power system from lightning overvoltage and overcurrent damage
3.1.11
SPD connected to telecommunication and signaling circuits
SPD for lightning overvoltage and overcurrent that limits the intrusion to information system device via signal transmission channels such as data line, signal line and communication line
3.1.12
antenna feeder lightning protection device
lightning protection device for antenna feeders of wireless communication equipment
3.1.13
maximum continuous operating voltage
UC
rated voltage of SPD
Note: Maximum continuous operating voltage of SPD refers to the DC voltage or r.m.s. value of maximum AC voltage, which may be continuously applied to the SPD. The maximum continuous operating voltage of a SPD connected to telecommunication and signaling circuits or a surge protective device for railway signal system is the maximum voltage r.m.s. value that can be continuously applied thereto without causing a drop in its transmission characteristics.
Foreword i 1 Scope 2 Normative references 3 Terms, definitions and abbreviations 4 Use environment conditions 5 Structure and classification of lightning protection devices 6 Technical requirements 7 Test methods 8 Inspection rules 9 Package, transportation and storage Bibliography
Codeofchina.com is in charge of this English translation. In case of any doubt about the English translation, the Chinese original shall be considered authoritative.
This standard is developed in accordance with the rules given in GB/T 1.1-2009.
This standard replaces TB/T 2311-2008 Surge protective devices for railway signal system. In addition to a number of editorial changes, the following main technical changes have been made with respect to TB/T 2311-2008:
——some terms and definitions of lightning protection devices are modified (see Clause 3; Clause 3 of Edition 2008);
——definition of voltage standing wave ratio of antenna feeder coaxial lightning arrester is added (see 3.36);
——the structure diagram of SPD is changed from hybrid representation method of component diagram and block diagram to block diagram only (see Figure 1; Figure 1 of Edition 2008);
——the classification method for SPD is modified; the definition and special requirements of SPD for railway signal system are specified and DC SPD for railway signal system is deleted (see 5.1; 5.2 of Edition 2008);
——capacity of terminals for connecting wire is modified (see 6.1.6; 6.1.5 of Edition 2008);
——requirements for the SPD disconnector of railway communication device are deleted (see 6.1.3 of Edition 2008);
——voltage protection level of parallel type AC power lightning protection box and the cooperation requirements for SPD and backup protection device are added (see 6.2.2);
——technical requirements for antenna feeder coaxial lightning arrester are added (see 6.2.5.2.3);
——test method for voltage protection level of parallel type AC power lightning protection box is added (see 7.3.1.3.4);
——cooperative test method for SPD and backup protection device in parallel type AC power lightning protection box is added (see 7.3.1.9);
——insulation resistance test for SPD connected to telecommunication and signaling circuits is added (see 7.3.3.3);
——test method for bit error rate of SPD connected to telecommunication and signaling circuits for digital circuits is added (see 7.3.3.6.2);
——capacitance test for SPD connected to telecommunication and signaling circuits is added (see 7.3.3.4):
——test method for antenna feeder coaxial lightning arrester is added (see 7.3.4.4.2);
——impulse waveforms for measured limiting voltage test of the SPD for railway signal system and the SPD connected to telecommunication and signaling circuits are modified (see 7.3.2.3.1 and 7.3.3.1.1; 8.4.3 of Edition 2008);
——test method for bit error rate of SPD connected to telecommunication and signaling circuits for digital circuits is added (see 7.3.3.6.2);
——temperature stability test for the terminal of lightning protection distribution cabinet is added (see 7.4.10);
——vibration test frequency range of outdoor type lightning protection device is modified (see 7.5.1; 8.7.1 of Edition 2008);
——test requirements for the nominal discharge current In for AC SPD used in low-voltage power circuit are deleted (see 8.4.5 of Edition 2008).
This standard was proposed by and is under the jurisdiction of Xi'an Railway Signal Research Co., Ltd.
The previous editions of the standard replaced by this standard are as follows:
TB/T 2311-1992, TB/T 2311-2002 and TB/T 2311-2008.
Lightning protection devices for electronic equipments in railway telecommunication, signaling, power supply systems
1 Scope
This standard specifies the terms and definitions, use environment, classification, technical requirements, test methods, inspection rules as well as marking, packaging, transportation and storage for synthetic lightning protection devices for electronic equipment in railway telecommunication, signaling, power supply systems with nominal AC voltage up to 1 000V (r.m.s. value) and DC voltage up to 1 500V.
This standard applies to lightning protection devices that limit the surges of indirect lightning effects and may be used by manufacturer for manufacturing and users for model selection. It applies to electronic equipment in railway telecommunication, signaling and power supply systems and may be referred by railway system and other department’s electrical and electronic equipment.
2 Normative references
The following referenced documents are indispensable for the application 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 2423.1-2008 Environmental testing - Part 2: Test methods - Tests A: Cold (IEC 60068-2-1:2007, IDT)
GB/T 2423.2-2008 Environmental testing - Part 2: Test methods - Tests B: Dry heat (IEC 60068-2-2:2007, IDT)
GB/T 2423.4-2008 Environmental testing for electric and electronic products - Part 2: Test method - Test Db: Damp heat, cyclic ( 12h+12h cycle) (IEC 60068-2-30: 2005, IDT)
GB/T 2423.10-2008 Environmental testing for electric and electronic products - Part 2: Tests methods - Test Fc: Vibration (sinusoidal) (IEC 60068-2-6:1995, IDT)
GB/T 3482-2008 Lightning test method for electronic equipments
GB 4208-2008 Degrees of protection provided by enclosure (IP code) (IEC 60529:2001, IDT)
GB/T 5169.10-2006 Fire hazard testing for electric and electronic products - Part 10: Glow/hot-wire based test methods - Glow-wire apparatus and common test procedure (IEC 60695-2-10:2000, IDT)
GB/T 14048.7-2006 Low-voltage switchgear and controlgear - Part 7-1: Ancillary equipment - Terminal blocks for copper conductors (IEC 60947-7-1:2002, IDT)
GB/T 17627.1-1998 High-voltage test techniques for low-voltage equipment - Part 1: Definitions, test and procedure requirements (eqv IEC 61180-1:1992)
GB 18802.1-2011 Low-voltage surge protective devices - Part 1: Surge protective devices connected to low-voltage power distribution systems - Requirements and tests (IEC 61643-1:2005, MOD)
GB/T 18802.21-2004
(IEC 61643-21:2000, IDT) Low-voltage surge protective devices - Part 21: Surge protective devices connected to telecommunications and signalling networks - Performance requirements and testing methods
TB/T 2310 Gas discharge tube for the lightning protection of railway signaling equipments
TB/T 2312 Zinc oxide varistor for the lightning protection of railway signaling equipments
3 Terms, definitions and abbreviations
3.1 Definitions
For the purposes of this standard, the following terms and definitions apply.
3.1.1
lightning protection device
a general term for devices that limit lightning transient overvoltages and divert lightning surge currents
Note: It contains surge protection devices and their derivatives, as well as coaxial antenna feeder lightning protection device without any nonlinear voltage elements. Lightning protection device is also referred to as lightning arrester.
3.1.2
surge protection device, SPD
device that is intended to limit transient overvoltages and divert surge currents. It contains at least one nonlinear element
3.1.3
voltage limiting type SPD
SPD that has high impedance when no surge is present, but will reduce it continuously with increased surge current and voltage
Note: Common examples of elements used in voltage limiting type SPDs are varistors, suppressor diodes and other non-linear ones.
3.1.4
voltage switching type SPD
SPD that has high impedance when no surge is present, but can have a sudden change in impedance to a low value in response to a voltage surge
Note: Common examples of elements used in voltage switching type SPDs are gas discharge tubes, thyristors (silicon-controlled rectifiers) and bidirectional triode thyristors.
3.1.5
combination type SPD
SPD that incorporates both voltage switching elements and voltage limiting elements
3.1.6
one-port SPD
SPD is connected with the protected line in parallel. A one-port SPD may have separate input and output connections. No specific series impedance is inserted between these terminals
3.1.7
two-port SPD
SPD having two sets of ports, i.e. input and output terminals. There is specific series impedance connected between separate input and output terminals
3.1.8
multistage SPD
SPD with more than one voltage limiting elements; these voltage limiting elements may or may not be electrically separated by a series of elements; they may be either switching type or voltage limiting type
3.1.9
SPD used in low-voltage power circuits
SPD that limits the lightning transient overvoltage and overcurrent invading to the power supply equipment from the power feeder; including AC SPD used in low-voltage power circuits and DC SPD used in low-voltage power circuits.
3.1.10
AC power lightning protection box
power lightning protection device consisting of AC SPD used in low-voltage power circuits, SPD breaker, lightning counter, indicator light, and the power lightning protection device composed of alarm units to protect the power system from lightning overvoltage and overcurrent damage
3.1.11
SPD connected to telecommunication and signaling circuits
SPD for lightning overvoltage and overcurrent that limits the intrusion to information system device via signal transmission channels such as data line, signal line and communication line
3.1.12
antenna feeder lightning protection device
lightning protection device for antenna feeders of wireless communication equipment
3.1.13
maximum continuous operating voltage
UC
rated voltage of SPD
Note: Maximum continuous operating voltage of SPD refers to the DC voltage or r.m.s. value of maximum AC voltage, which may be continuously applied to the SPD. The maximum continuous operating voltage of a SPD connected to telecommunication and signaling circuits or a surge protective device for railway signal system is the maximum voltage r.m.s. value that can be continuously applied thereto without causing a drop in its transmission characteristics.
Contents of TB/T 2311-2017
Foreword i
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
4 Use environment conditions
5 Structure and classification of lightning protection devices
6 Technical requirements
7 Test methods
8 Inspection rules
9 Package, transportation and storage
Bibliography
