Photovoltaic Power Systems for Inspectors, Plan
Reviewers & Installers, 3E
by John Wiles
International Association of
Electrical Inspectors (IAEI)
In a time of rapid advancement in photovoltaic
(PV) power systems, this third edition of this acclaimed book serves
as a comprehensive manual for inspectors, plan reviewers, and
installers to ensure National Electrical Code-compliant PV system
Updated for the
2017 NEC, this extensive guide
covers everything plan reviewers, installers, and inspectors need to
know about these systems.
This book reviews PV
systems, explains how each part interacts with the other parts and
reviews the Code requirements.
The Code requirements for a typical
residential PV system are at least as complex as those for
residential wiring, and the direct current (dc) portions of the
system coupled with the alternating current (ac) interconnection to
the utility grid make PV installations somewhat unique.
If these systems are installed by individuals
that have little or no experience or training in installing
electrical systems, they may be unsafe (not code-compliant) at
initial installation, may develop hazardous conditions over the life
of the system, and may fail to deliver the full performance of a
well-designed and installed PV system.
PV installers who pursue additional
PV-specific and electrical training and work closely with the local
permitting and inspecting authorities perform the best, most
John Wiles is perhaps the most recognized and
influential name in the solar industry. He’s worked extensively in
the development of the NEC and UL Standards and is an active trainer
on Code-compliant PV systems.
Wiles has written hundreds of articles on
Code-related photovoltaic system topics and continues to write
Perspectives on PV articles for IAEI News.
- PV fundamentals and calculations
- PV module installation considerations
- Energy storage systems
- Overcurrent protection
- Utility interconnections
- Plan checking
- PV system inspections
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