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6
IN S TAL L AT IO N WO Rk
4. When you have made direct connections between
the specified number of solar modules, use a digital
multimeter to measure the voltage and current output
of the array. Do this for each string, and record the
measurement results.
•
This information is needed to check for solar
module wiring mistakes, and it will also be needed
by the electrician who makes the connections to
the inverter.
5. Organize the cables between solar modules. Bundle
the cables so that they do not touch the roof, and use
optional cable clips (AD806) to fasten them to the rear
side of the module frame. Leaves and other debris can
be caught around cables that are allowed to touch
the roof, and over the years loose dirt can build up,
potentially causing the roof to leak.
Use the optional cable clips (AD806) to secure wire to
the module frame. Push clips onto the module frame
where needed. Push wire into clip to secure.
Rail
Use the optional cable support bars (AD803) to secure
wire under the rail. Locate wires under rail and snap
bar into rail as shown above.
6. If the array cables stretch between rows, connect by
running them underneath the rail.
WARNING
output extension cables by covering them with
insulating tape.
High voltage is generated between output cables
whenever sunlight strikes a solar power array. There
is a danger of shock.
7. Tape the output cables for each string together, and
write the number of solar modules in the array on the
tape, so that it can be understood by the electrician
who makes the connections to the inverter.
8. Tape the + (positive) and - (negative) cable ends separately.
CAUTION
Electric cable can deteriorate or be damaged if not
protected.
When cabling is installed outdoors or passed through
walls, protect it with metal conduit, flexible metal
conduit, or other protection. Failure to do so can
result in shock or short circuits.
9. Always protect the array output cables with conduit
wherever they touch the roof or are exposed to direct
sunlight.
Clip
7
7
Protect the terminals of the array
Tape and write the number of
modules on the tape.
Array output cable + (positve)
Taping (to prevent shock)
+
-
Array output cable - (negative)
Follow the provisions of the NEC.
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