1 Scope
This standard specifies definitions, classifications, technical specifications, testing methods and inspection rules of surge protection of power supply for telecommunications.
This standard is applicable to AC distribution equipment for telecommunication stations/sites, oil engine control system, AC uninterruptible power supply equipment for communication, semiconductor rectifier equipment for telecommunication and high frequency switch-mode rectifier for telecommunication.
Power supply equipment for telecommunications integrated in the system may be implemented by reference.
2 Normative References
The following normative documents contain provisions which, through reference in this standard, constitute provisions of this standard. For dated references, subsequent amendments to (excluding corrections), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For any undated references, the latest edition of the document referred to applies.
Foreword I
1 Scope
2 Normative References
3 Terms and Definitions
3.1 Power Supply for Telecommunications
3.2 Surge Protective Device, SPD
3.3 Nominal Discharge Current, In
3.4 Coupling/Decoupling Network
3.5 Wave Parameters
4 Classifications
5 Technical Specifications
5.1 Basic Requirement
5.2 Nominal Rated Value
5.3 Technical Specifications for Classification of All-level Power Supply Equipment
6 Testing Methods
6.1 Testing Conditions
6.2 Surge Protection Performance Test for the Power Interface of Power Supply Equipment
6.3 Surge Protection Performance Test for Communication Interface (Including Three-remote Interface) of Power Supply Equipment
7 Inspection Rules
7.1 Acceptance Inspection
7.2 Type Inspection
Appendix A (Normative) Testing Items
Standard
YD/T 944-2007 Technical Specification and Testing Methods for Surge Protection of Power Supply for Communications (English Version)
Standard No.
YD/T 944-2007
Status
valid
Language
English
File Format
PDF
Word Count
3000 words
Price(USD)
60.0
Implemented on
2007-12-1
Delivery
via email in 1 business day
Detail of YD/T 944-2007
Standard No.
YD/T 944-2007
English Name
Technical Specification and Testing Methods for Surge Protection of Power Supply for Communications
1 Scope
This standard specifies definitions, classifications, technical specifications, testing methods and inspection rules of surge protection of power supply for telecommunications.
This standard is applicable to AC distribution equipment for telecommunication stations/sites, oil engine control system, AC uninterruptible power supply equipment for communication, semiconductor rectifier equipment for telecommunication and high frequency switch-mode rectifier for telecommunication.
Power supply equipment for telecommunications integrated in the system may be implemented by reference.
2 Normative References
The following normative documents contain provisions which, through reference in this standard, constitute provisions of this standard. For dated references, subsequent amendments to (excluding corrections), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For any undated references, the latest edition of the document referred to applies.
Contents of YD/T 944-2007
Foreword I
1 Scope
2 Normative References
3 Terms and Definitions
3.1 Power Supply for Telecommunications
3.2 Surge Protective Device, SPD
3.3 Nominal Discharge Current, In
3.4 Coupling/Decoupling Network
3.5 Wave Parameters
4 Classifications
5 Technical Specifications
5.1 Basic Requirement
5.2 Nominal Rated Value
5.3 Technical Specifications for Classification of All-level Power Supply Equipment
6 Testing Methods
6.1 Testing Conditions
6.2 Surge Protection Performance Test for the Power Interface of Power Supply Equipment
6.3 Surge Protection Performance Test for Communication Interface (Including Three-remote Interface) of Power Supply Equipment
7 Inspection Rules
7.1 Acceptance Inspection
7.2 Type Inspection
Appendix A (Normative) Testing Items
