File : pdf, 3.08 MB, 149 pages
CONTENT
Introduction
Methods of Achieving Objectives
Scope and Purpose of the National Electrical Code
This Guide
Longevity, Materials, and Safety
Testing and Approval
Photovoltaic Modules Module Marking
WIRING
Module Interconnections
Tracking Modules
Terminals Transition Wiring
Module Connectors
Module Connection Access
Splices
Conductor Color Codes
PV Array Ground-Fault Protection
PV Array Installation and service
Grounding Definitions
Grounding System
Size of DC Grounding Electrode Conductor
Point of Connection
Unusual Grounding Situations
Charge Controllers System Grounding
Ungrounded Systems
Equipment Grounding
Inverter AC Outputs
PV Inverters Create Separately Derived Systems
AC Grounding
DC Grounding
Backup Generators
Suggested AC Grounding
Grounding Electrode
Conductor Ampacity Stand-Alone Systems Inverters
Overcurrent Protection Ampere Rating
Branch Circuits
Amperes Interrupting Rating (AIR) Short-Circuit Conditions
Fusing of PV Source Circuits
Current-Limiting Fuses Stand-Alone Systems
Current-Limiting Fuses Utility-interactive Systems
Fuse Servicing
Disconnecting Means
Photovoltaic Array Disconnects
PV DISCONNECT LOCATION
Equipment Disconnects
Battery Disconnect
Charge Controller Disconnects
UNGrounded Systems
Multiple Power Sources
Panelboards, Enclosures, and Boxes
Batteries Hydrogen Gas
Battery Rooms and Containers
Acid or Caustic Electrolyte
Electric Shock Potential
Battery and other large Cables
Generators
Charge Controllers
Stand-Alone Distribution Systems
Interior DC Wiring and Receptacles
Smoke Detectors
Ground-Fault Circuit Interrupters
Interior Switches
Multiwire Branch Circuits
AC PV Modules
System Labels and Warnings Photovoltaic Power Source
Multiple Power Systems
Interactive system Point of INterconnection
Switch or Circuit Breaker
APP A: Sources of Equipment Meeting the Requirements of
APP B: PV Module Operating Characteristics Drive NEC Requirements
APP C: Utility-Interactive Systems
APP D: Cable and Device Ratings at High Voltages
APP E: Example Systems
APP F: DC Currents on Single-Phase Stand-alone Inverters
APP G: Grounding PV Modules
APP H: PV Ground Fault Protection Devices and The National Electrical Code
APP I: Selecting Overcurrent Devices and Conductors in PV Systems
APP J: Fusing of DC PV Module Circuits in Utility-Interactive PV Systems
APP K: Flexible, Fine-Stranded Cables: Incompatibilities
APP L: Ungrounded PV Systems
APP M: Service Entrance Conductor Taps for Utility-Interactive
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