Table of Contents. 1 Introduction. 2 Power System Requirements. Preface... xi

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1 Power Requirements in Telecommunications Plant GR-513-CORE Table of Contents Table of Contents Preface xi 1 Introduction 1.1 Reasons for GR-513-CORE, Issue Other Telcordia Documents on Power Systems and Equipment Document Scope Considerations Beyond Document Scope Requirements Terminology Requirement Labeling Conventions Numbering of Requirement and Related Objects Requirement, Conditional Requirement, and Objective Identification Power System Requirements 2.1 General Power System Design Power Equipment in Telecommunications Facilities and NEC Code Battery Disconnects Standby AC Plant General Selection Guidelines Unattended or Partially Attended Plants AC Standby Plant Loads Non-Essential Loads Essential Loads Voltage Level Reliability and Maintenance Reliability Levels Maintenance Electrical Safety Alternative Standby or Primary Power Systems General Design Requirements Site-Specific Considerations DC Power System Rectifier Battery Plants Converter and Inverter Plants DC Distribution Voltage Limits and Load Currents Determination List 1 Currents - Normal Load and Operating Conditions List 2 Currents - Worst-Case Load or Operating Conditions List 3 Currents Distribution and Voltage Drops Cabling and Bus Bars Distribution Protection Grounding Referencing for the DC Return Energy Storage Technologies Battery Chemistries and Technologies Lithium-Ion Battery Chemistries and Technologies Comparison of Battery Technologies Supercapacitors v

2 GR-513-CORE Table of Contents Issue 2, January Central Office and Microwave Radio Long-Duration Batteries Batteries for Outside Plant (OSP) and Fiber Regeneration Site Facilities Battery Reserve Time Central Office Facilities Outside Plant (OSP) Facilities Facilities with Uninterruptible Power Systems (UPS) Units Batteries Supporting Alternative Applications - Wind Power, Photovoltaic, and Hybrid Systems Engine-Start Batteries Batteries for Uninterruptible Power Source (UPS) Batteries Distributed Power (DP) Within the CO General Features AC Feed Cables and Conduit DC Cables and Distribution Distributed Power Plant Equipment Rectifiers Spatial Requirements - Equipment Cabinet or Closure Maintenance Equipment Power Connectors Grounding, Bonding, and Protection Power Backup and Battery Standby Alarm and Monitoring Telecom Data Centers AC Powered Equipment Within the CO Facilities Monitoring, Control and Alarms 3.1 Introduction Power System Monitor/Controller - General Features General Communication Protocols TL1 Packet - Communication Protocols SNMP - Communication Protocols Contact Closures - Power Devices in the Outside Plant (OSP) and Remote Access Hardware Requirements Power Devices in the Outside Plant (OSP) Data Collection and Storage Requirements Access and Security Requirements Display Requirements Alarm Management Alarm Categories Power Alarms General Alarm and Monitoring Requirements AC Mains DC Power Plant Backup Batteries Converters Inverters Standby Engine - Engine-Alternator (AC) and Engine-Generator (DC) vi

3 Power Requirements in Telecommunications Plant GR-513-CORE Table of Contents 4 Outside Plant (OSP) Sites 4.1 DC Power Systems for OSP Locations Backup or Standby Power Requirements Outside Plant (OSP) Locations General Requirements Telecommunications Huts Controlled Environmental Vaults (CEVs) Walk-In Cabinets Electronic Equipment Cabinets Cabinets Small Cabinets Pole Mounted Cabinets Wireless Cell Sites Powered Optical Network Units Commercial Customer Premises (CCP) Customer-Powered FTTP Sites Reporting and Listing Requirements 5.1 Operational Locations for Power Equipment Energy Metrics Rectifiers, Inverters, and Converters Batteries Air Flow Characteristics (EC Class) Surface Temperatures Reliability, Quality and Documentation Requirements 6.1 General Design Requirements Safety and Reliability Considerations Materials Documentation Instructions and Training Installation and Maintenance Quality Management System (QMS) Product Changes Engineering Complaint Process Functional Requirements 7.1 AC-Power System Commercial AC Service Overvoltage Protection AC Grounding Requirements Standby AC Plants AC-Powered Equipment General No-Break Power System Requirements Protected Power System Requirements DC Power System Power Equipment - AC Input Requirements DC Power Plant Capacity vii

4 GR-513-CORE Table of Contents Issue 2, January Output Voltage Range Telephone Influence Factor Electrical Noise DC Plant Start-Up Characteristics DC Power System Grounding Requirements and Definitions Grounding Interfaces Batteries and Accessories DC Distribution Power Feeders Current Drains Appendix A: References A.1 Telcordia Documents A 1 A.2 Non-Telcordia Reference Documents A 4 A.3 Telcordia Reference Notes A 6 Appendix B: GR-513 and the LSSGR FR-64 Family of GRs Appendix C: Communication Protocols and Alarm Types C.1 Telcordia References on Communication Protocols C 1 C.2 Environmental Alarm Types C 2 Appendix D: Environmental Classes of GR-3108 Appendix E: Nickel Metal Hydride Battery Requirements Appendix F: Acronyms and Definitions Requirement-Object Index viii

5 Power Requirements in Telecommunications Plant GR-513-CORE List of Figures List of Figures Figure 2-1 Typical AC-DC Power System for a Telecommunications Office Figure 2-2 Example of Voltage Drop Calculation Figure 2-3 Schematic -- Li-ion Battery s Battery Management System (BMS) Figure 2-4 Grounding Schematic (DP in CO Facility) Figure 2-5 System Grounding of a Single Line Figure 3-1 PSMC Schematic Figure 7-1 Protection Levels Figure 7-2 Typical DC Power System for a Local Switching Office ix

6 GR-513-CORE List of Tables Issue 2, January 2010 List of Tables Table 2-1 Battery Chemistry and Technology Comparison Table 2-2 Common Rechargeable Lithium Electro-Chemical Systems Table 2-3 Battery Technology Comparison Table 2-4 Cable Feed Architecture Choices for Distributed Power Plant Table 3-1 Alarm Level Classification and Associated Colors Table 3-2 Power Systems Report Parameters Table 3-3 Battery Plants Table 3-4 Converter Plants Table 3-5 Inverter Plants Table 5-1 Report Format for Rectifiers Table 7-1 Rectifier AC Voltage Ranges Table 7-2 Central Office DC Power Plant Voltages Table 7-3 Transient Limits Table C-1 Valid Values for Alarm Parameters C 2 Table E-1 Functional Performance Requirements for Ni-MH Batteries.... E 1 x