YD/T 993-2016 The technical requirements and test methods of overvoltages and overcurrents resistibility for wire telecommunication terminal equipment (English Version)
1 Scope
This standard specifies the technical requirements and test methods of overvoltages and overcurrents resistibility for wire telecommunication terminal equipment.
This standard is applicable to test of protective performance of wire telecommunication terminal equipment, either indoor type or outdoor type, connected to the communication network and public supply network.
2 Normative References
The following documents are indispensable for the application of this document. For dated references, only the dated editions apply. For undated references, the latest editions (including any amendments) apply.
GB/T 17626.5-2008 Electromagetic Compatibility—Testing and Measurement Techniques—Surge(Impact) Immunity Test
YD/T 1540-2014 Test Methods for Overvoltage and Overcurrent Resistance of Telecommunication Equipment
3 Terms, Definitions and Abbreviations
3.1 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
TTE
telecommunication equipment, connected at the public telecommunication network terminal, provides users with functions of sending and receiving information.
3.1.2
Overvoltages and Overcurrents
the external voltage and current exceeding the normal working voltage and current of the equipment.
3.1.3
Simulation Lightning Surge
impact on equipment when lightning stroke happens at or nearby the simulation line facilities.
3.1.4
Power Induction
interference of power line or electrified railway system with adjacent communication line.
3.1.5
Mains Power Contact
direct contact between power line and communication line.
3.1.6
Specific Energy
a factor to measure the power induction energy, numerically equal to energy consumed by 1Ω resistance, i.e. a product of second power of induced current and time spent when current flows through.
Specific Energy of signal generator is measured by placing the signal generator short circuited at output end.
3.1.7
Primary Protection
a method for protecting the equipment with surge protection device, and preventing the overvoltage and overcurrent from entering into device port. The surge protection device shall be available easily and removed safely and be kept in equipotential bonding.
3.1.8
Inherent Protection
a protection method, provided on device port, which can be achieved by intrinsic property, structure design or appropriate protective element.
3.1.9
Special Test Protector
the circuit or component in place of coordination protector for protection of coordination.
3.1.10
External Ports
a specific communication port for a specific equipment, which is connected directly with the metal conductor extended to building wiring.
3.1.11
Internal Ports
Foreword i
1 Scope
2 Normative References
3 Terms, Definitions and Abbreviations
3.1 Terms and Definitions
3.2 Abbreviations
4 Product Application Environment Classification
4.1 Class I Environment
4.2 Class II Environment
4.3 Identification and Description
5 Technical Requirements
5.1 Test Type
5.2 Protection Coordination Test
5.3 Technical Requirements
6 Test Method
6.1 Test Condition
6.2 Recommended Test Procedures
6.3 Simulation Lightning Surge Test
6.4 Power Induction
6.5 Mains Power Contact Test
Annex A (Normative) Example of Test Circuit Configuration
Annex B (Normative) Qualification Criteria
Standard
YD/T 993-2016 The technical requirements and test methods of overvoltages and overcurrents resistibility for wire telecommunication terminal equipment (English Version)
Standard No.
YD/T 993-2016
Status
valid
Language
English
File Format
PDF
Word Count
12000 words
Price(USD)
360.0
Implemented on
2017-1-1
Delivery
via email in 1 business day
Detail of YD/T 993-2016
Standard No.
YD/T 993-2016
English Name
The technical requirements and test methods of overvoltages and overcurrents resistibility for wire telecommunication terminal equipment
1 Scope
This standard specifies the technical requirements and test methods of overvoltages and overcurrents resistibility for wire telecommunication terminal equipment.
This standard is applicable to test of protective performance of wire telecommunication terminal equipment, either indoor type or outdoor type, connected to the communication network and public supply network.
2 Normative References
The following documents are indispensable for the application of this document. For dated references, only the dated editions apply. For undated references, the latest editions (including any amendments) apply.
GB/T 17626.5-2008 Electromagetic Compatibility—Testing and Measurement Techniques—Surge(Impact) Immunity Test
YD/T 1540-2014 Test Methods for Overvoltage and Overcurrent Resistance of Telecommunication Equipment
3 Terms, Definitions and Abbreviations
3.1 Terms and Definitions
For the purposes of this document, the following terms and definitions apply.
3.1.1
TTE
telecommunication equipment, connected at the public telecommunication network terminal, provides users with functions of sending and receiving information.
3.1.2
Overvoltages and Overcurrents
the external voltage and current exceeding the normal working voltage and current of the equipment.
3.1.3
Simulation Lightning Surge
impact on equipment when lightning stroke happens at or nearby the simulation line facilities.
3.1.4
Power Induction
interference of power line or electrified railway system with adjacent communication line.
3.1.5
Mains Power Contact
direct contact between power line and communication line.
3.1.6
Specific Energy
a factor to measure the power induction energy, numerically equal to energy consumed by 1Ω resistance, i.e. a product of second power of induced current and time spent when current flows through.
Specific Energy of signal generator is measured by placing the signal generator short circuited at output end.
3.1.7
Primary Protection
a method for protecting the equipment with surge protection device, and preventing the overvoltage and overcurrent from entering into device port. The surge protection device shall be available easily and removed safely and be kept in equipotential bonding.
3.1.8
Inherent Protection
a protection method, provided on device port, which can be achieved by intrinsic property, structure design or appropriate protective element.
3.1.9
Special Test Protector
the circuit or component in place of coordination protector for protection of coordination.
3.1.10
External Ports
a specific communication port for a specific equipment, which is connected directly with the metal conductor extended to building wiring.
3.1.11
Internal Ports
Contents of YD/T 993-2016
Foreword i
1 Scope
2 Normative References
3 Terms, Definitions and Abbreviations
3.1 Terms and Definitions
3.2 Abbreviations
4 Product Application Environment Classification
4.1 Class I Environment
4.2 Class II Environment
4.3 Identification and Description
5 Technical Requirements
5.1 Test Type
5.2 Protection Coordination Test
5.3 Technical Requirements
6 Test Method
6.1 Test Condition
6.2 Recommended Test Procedures
6.3 Simulation Lightning Surge Test
6.4 Power Induction
6.5 Mains Power Contact Test
Annex A (Normative) Example of Test Circuit Configuration
Annex B (Normative) Qualification Criteria