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Lowest Expected Ambient Temperature (°C/°F)
Correction Factor
24 to 20 / 76 to 68
1.02
19 to 15 / 67 to 59
1.04
14 to 10 / 58 to 50
1.06
9 to 5 / 49 to 41
1.08
4 to 0 / 40 to 32
-1 to -5 / 31 to 23
1.10
1.12
-6 to -10 / 22 to 14
1.14
-11 to -15 / 13 to 5
1.16
-16 to -20 / 4 to -4
1.18
-21 to -25 / -5 to -13
1.20
-26 to -30 / -14 to -22
1.21
-31 to -35 / -23 to -31
1.23
-36 to -40 / -32 to -40
1.25
Table 1: Low temperature correction factors for open-circuit voltage
C
VOC
= 1-αVoc ˣ (25 - T)
Alternatively, a more accurate correction factor for the
open-circuit voltage can be calculated using the following
formula:
T is the lowest expected ambient temperature at the
system installation site.
α
Voc
(%/ºC) is the voltage temperature coefficient of the
selected module (refer to corresponding datasheet).
Electrical calculations and design must be performed by
competent engineer or consultant.
4.0 UNPACKING AND STORAGE
PRECAUTIONS
· Module should be stored in a dry and ventilated
environment to avoid direct sunlight and moisture. If
modules are stored in an uncontrolled environment, the
storage time should be less than 3 months and extra
precautions should be taken to prevent connectors from
being exposed to moisture or sunlight.
· Unpack module pallets carefully, following the steps
shown on the pallet. Unpack, transport and store the
modules with care.
· Modules must always be unpacked and installed by two
people. Always use both hands when handling modules.
· Do not lift modules by their wires or junction box, lift
them by the frame.
· Stacks of modules should contain no more than 12
modules, and the frames should be aligned.
· Do not place excessive loads on the module or twist the
module frame.
· Do not stand, step, walk and / or jump on modules
under any circumstances. Localized heavy loads may
cause severe micro-cracks at cell level, which in turn may
compromise module reliability and void Canadian Solar
Inc’s warranty.
· Do not carry modules on your head.
