Topics & Concepts
This chapter covers the following topics and concepts:
Working safely with PV systems
Connecting and operating PV systems
Marking and labeling requirements
Access, pathways, and smoke ventilation requirements
Location and protection of direct current (DC) conductors
Non-habitable building requirements
Ground-mounted PV arrays
Safe design of PV systems—what the NEC says
Safety hints for testing a PV system
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DESIGNING AND INSTALLING a photovoltaic (PV) power system requires
strict attention to guidelines, legal requirements, and directions. Safety prac-
tices are critical to reducing or eliminating installation errors, electrical haz-
ards, or worse—injury or death on the job. Guidelines make sure that systems
are measured and installed appropriately. The NEC is the go-to guide for
legal requirements for installing PV systems. NEC regulations are updated
every three years. Step-by-step directions simplify and secure installation.
This chapter describes safety practices and procedures that must be
used to install PV systems. These practices protect the health and safety of
the installation team and property owners. It touches on the critical pro-
cesses for connecting and operating PV systems. It also provides tips for
safely testing PV systems.
Essential Safety
Practices for Designing
and Installing PV
Systems
c h a p t e r
2
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