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3.2 Solar Arr ay Mounting Rack
WARNING All parts of your mounting structure must be engineered for wind resistance, ease of
adjustment, and safety.
Follow the rack manufacturer’s instructions that are packed with your rack.
WARNING Use extreme caution when assembling
the array above your head.
You will work with a large
and heavy assembly and unpredictable wind. The use of
ladders can be dangerous. It is best to assemble a
platform using a strong scaffold assembly (the
temporary platform system that is used for building
construction). A scaffold system can be rented from a
local supplier.
Solar Tracking
A solar tracker is a special pole-
mounted solar array rack that tilts automatically to follow
the daily path of the sun. In clear summer weather, it
can increase your daily pumping volume by 40-50%. (It
is much less effective in winter and in cloudy weather.)
A tracker is an option with
SunCentric P
Systems.
PHOTO
Typical assembly of a solar array on a passive
(non-electric) tracker. The tracker pipe was extended to
about 10 feet (3m), by welding it to a larger pipe. The
array was assembled and wired on the ground, then
lifted and lowered onto the pole with the help of a
backhoe and chain. Wire is single-conductor type USE
(outdoor rated). See how the wire is looped. This allows
it to shed water, and to flex easily as the tracker swings
East-West. Wires enter the conduit through a “weather
head” fitting (enlarged).
3.3 Solar Arr ay Assembly Methods
WARNING Use extreme caution when assembling the array above your head.
You will work with a
large and heavy assembly and unpredictable wind. The use of ladders can be dangerous.
There are two ways to install the solar array. See PHOTO GALLERY for examples.
1. Assemble the array on the ground, wiring and all, then lift the entire assembly onto the pole or
roof. A system of 300 watts or more may require the assistance of a backhoe, boom truck or
crane to lift it over the pole.
Assemble the array piece-by-piece on the pole. If the pole is higher than about 6 feet (2m), it is best to
construct a temporary platform, like a scaffold assembly commonly used in building construction). A
scaffold system can be rented from a local supplier.
Содержание SunCentric P
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