NABCEP PV System Inspector Certification with all
Correct & 100% Verified Answers |Latest Version |
Already Graded A+
During an inspection of a 90kW commercial rooftop PV system, the inspector notices that the
orientation of the PV does not match the plans. The solar installer said the engineer told him that it
would be code compliant to change the tilt or azimuth, since the NEC does not cover PV orientation
and the project will actually be safer and produce more energy. What is the best reason that the
inspector gave for a failed the inspection ✔Correct Answer-The installation does not match the
permit design
When dc PV circuits are installed in conduit, it is required to have a label that says something like:
"WARNING: PHOTOVOLTAIC POWER SOURCE." What is the MAXIMUM distance between labels?
✔Correct Answer-10'
What is the label that should be on dc-to-dc converter source circuit conduit on the side of a
building? ✔Correct Answer-White letters on red background saying "WARNING: PHOTOVOLTAIC
POWER SOURCE" every 10 feet
What is a function of a diversion charge controller? ✔Correct Answer-Prevents overcharging
The PV dc disconnecting means label in an interactive inverter, shall have the following information
✔Correct Answer-Maximum voltage
What is the limit of bends between places where wire can be pulled in an EMT or other typical
conduit run? ✔Correct Answer-360 degrees
Which type of wire can be installed under a PV array in free air? ✔Correct Answer-USE-2
What is the best and most Code compliant way to insure against corrosion with dissimilar metals,
such as copper and aluminum in a solar PV array? ✔Correct Answer-Using listed products that are
listed to work with the different types of metals
If you are using a UL 2703 listed racking system, in which case can you use it for bonding modules?
✔Correct Answer-The racking system has to be identified for grounding PV modules
Battery system working space lighting controls must be controlled by ✔Correct Answer-Not by
automatic means only
The diagram you are given by the building department shows that you cannot have a rafter sag that
is more than 1 inch every 25 feet. If you have a 15-foot rafter span, what would be the maximum
sag? ✔Correct Answer-0.6"
Applies to AC conductors of the same circuit, grounded conductors, and all equipment grounding
conductors and bonding conductors ✔Correct Answer-Shall be contained within the same raceway,
auxiliary gutter, cable tray, cable bus assembly, trench, cable, or cord, unless otherwise permitted.
Correct & 100% Verified Answers |Latest Version |
Already Graded A+
During an inspection of a 90kW commercial rooftop PV system, the inspector notices that the
orientation of the PV does not match the plans. The solar installer said the engineer told him that it
would be code compliant to change the tilt or azimuth, since the NEC does not cover PV orientation
and the project will actually be safer and produce more energy. What is the best reason that the
inspector gave for a failed the inspection ✔Correct Answer-The installation does not match the
permit design
When dc PV circuits are installed in conduit, it is required to have a label that says something like:
"WARNING: PHOTOVOLTAIC POWER SOURCE." What is the MAXIMUM distance between labels?
✔Correct Answer-10'
What is the label that should be on dc-to-dc converter source circuit conduit on the side of a
building? ✔Correct Answer-White letters on red background saying "WARNING: PHOTOVOLTAIC
POWER SOURCE" every 10 feet
What is a function of a diversion charge controller? ✔Correct Answer-Prevents overcharging
The PV dc disconnecting means label in an interactive inverter, shall have the following information
✔Correct Answer-Maximum voltage
What is the limit of bends between places where wire can be pulled in an EMT or other typical
conduit run? ✔Correct Answer-360 degrees
Which type of wire can be installed under a PV array in free air? ✔Correct Answer-USE-2
What is the best and most Code compliant way to insure against corrosion with dissimilar metals,
such as copper and aluminum in a solar PV array? ✔Correct Answer-Using listed products that are
listed to work with the different types of metals
If you are using a UL 2703 listed racking system, in which case can you use it for bonding modules?
✔Correct Answer-The racking system has to be identified for grounding PV modules
Battery system working space lighting controls must be controlled by ✔Correct Answer-Not by
automatic means only
The diagram you are given by the building department shows that you cannot have a rafter sag that
is more than 1 inch every 25 feet. If you have a 15-foot rafter span, what would be the maximum
sag? ✔Correct Answer-0.6"
Applies to AC conductors of the same circuit, grounded conductors, and all equipment grounding
conductors and bonding conductors ✔Correct Answer-Shall be contained within the same raceway,
auxiliary gutter, cable tray, cable bus assembly, trench, cable, or cord, unless otherwise permitted.
