Students who complete PV202 will be able to:
Define the purpose of the National Electrical Code (NEC®) and NEC® terminology for PV equipment
Determine procedures for proper installation of equipment and conductors, including minimum requirements for working space
Examine methods for PV wire management and determine where expansion fittings are required
Describe and identify electrical services, including split-phase and three-phase Wye (Y) and Delta (â)
Evaluate electrical service details to collect and record during solar site evaluation
Identify options for NEC®-compliant PV system interconnection to the utility grid and determine whether a supply side, load side, or additional service connection is appropriate
Identify code-compliant methods for connecting an inverter to an existing AC feeder
Calculate PV module voltage based on temperature to ensure compatibility with system components and NEC® Section 690.7, and explore other options for maximum PV system DC voltage calculations
Identify NEC® requirements and sizing of disconnects and overcurrent protection devices (OCPDs) in grid-direct PV systems
Define inverter grounding configurations
Evaluate inverter choices and system configurations, including string inverters, central inverters, and module level power electronics (MLPE)
Identify requirements for equipment grounding, equipment grounding conductors (EGC), and grounding electrode conductors (GEC), and size the conductors according to the NEC®
Identify common causes of ground-faults and arc-faults
Describe ground-fault and arc-fault protection devices
Describe benefits and appropriate locations of surge protection devices (SPD)
Demonstrate the use of sun charts and perform calculations to determine row spacing and minimize inter-row shading
Identify how Codes detailing access for first responders impact PV array roof layout
Examine fire classifications that affect racking and module selection
Detail NEC rapid shutdown requirements and options for implementation
Identify load and structural considerations for low- and steep-slope roof-mounted PV systems
Calculate wind uplift force and select appropriate lag bolts
Review issues related to planning, design, and installation of ground-mount PV arrays
Review PV system circuit terminology, definitions, and conductor types
Calculate minimum overcurrent protection device (OCPD) size and conductor ampacity using appropriate adjustment and correction factors
Calculate voltage drop and verify system operation within acceptable limits
Examine requirements for PV system labeling
Calculate the maximum and minimum number of modules per PV source circuit, and number of PV source circuits per inverter
Determine size of residential grid-direct PV system based on site and customer-specific considerations including the number and wiring layout of modules, conductor and OCPD sizes, and the AC interconnections
Determine the size of a large, multiple inverter, grid-direct PV system based on site and customer-specific considerations, including the quantity and layout of modules and inverters and the AC interconnection
Define large-scale PV and review associated NEC® allowances and requirements
Describe importance of Data Acquisition Systems (DAS)
Identify common DAS equipment and hardware
Review DAS design, installation, and commissioning processes and common
problems associated with DAS
Show how reports can be generated and utilized to remotely assess health of
system