Solar Energy
For “Class C” modules, the assembly is to be
mounted over a fire resistant roof covering
rated for the application.
Under normal conditions, a photovoltaic module
is likely to experience conditions that produce
more current and/or voltage than reported at
standard test conditions. Therefore, the values
of Isc and Voc marked on this module must be
sized according to section 690-8 of the National
Electrical Code for all component voltage rat-
ings, conductor ampacities, fuse sizes, and size
of controls connected to PV output.
Use only UL Listed grounding lugs suitable for
outdoor use: Burndy P/N CL-50-DB or ILSCO
P/N GBL-4DB in conjunction with an 8-32
stainless steel fastener and star washer. USE
conductor cable of minimum 10 AWG and
minimum 90°C temperature rating, which is
also sunlight resistant rated, for modules and
interconnect wiring that is exposed to weather
as per NEC.
National Electrical Code (NEC)
The National Electrical Code (NEC) covers the
installation of photovoltaic systems and must
be adhered to when systems are designed and
installed. Article 690, Solar Photovoltaic Sys-
tems, of the NEC applies to solar photovoltaic
electrical energy systems including the array
circuit(s), power conditioning unit(s) and con-
troller(s) for such systems.
All wiring shall be in accordance with the NEC,
and grounding method of the frame of arrays
shall comply with the NEC, article 250.
USL/CNL
All USL/CNL installations shall be in accordance
with CSA C22.1, Safety Standard for Electrical
Installations, Canadian Electrical Code, Part 1.
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