9842 to 11,154 ft. (3000 to 3400 m) = 850 V
-
If the open circuit voltage exceeds the values stated above, the inverter may
be damaged and all warranty rights will become null and void as the inverter
records the last DC voltage in the system meaning that non-compliance with
the maximum permitted limits can be checked.
-
Note the temperature coefficients in the solar module data sheet
-
More exact data for sizing the solar modules for the particular location can
be obtained using calculation tools such as the Fronius Solar.creator (creat-
or.fronius.com).
-
See NEC table 690.7 for the appropriate voltage adjustment factor for crys-
talline silicon solar modules, or use the manufacturer's specified voltage
coefficients.
NOTE!
Before connecting solar modules, make sure that the voltage specified by the
manufacturer corresponds to the actual measured voltage.
▶
Note the safety instructions and specifications of the solar module manufac-
turer regarding solar module grounding.
Connecting Alu-
minum Cables
The DC-side terminals are designed for connecting single-wire, round aluminum
cables. Due to the reaction of aluminum with air that creates a tough, non-con-
ductive oxide layer the following points must be considered when connecting alu-
minum cables:
-
Reduced rated currents for aluminum cables
-
The connection requirements listed below
Notice! Always follow the instructions of the cable manufacturer when using alu-
minum cables.
Notice! Take into account local specifications when configuring cable cross sec-
tions.
Connection Requirements:
1
Carefully clean off the oxide layer of the stripped end of the cable, e.g. using
a knife
IMPORTANT! Do not use brushes, files, or sandpaper; aluminum particles may
get stuck and can transfer to other cables.
2
After removing the oxide layer of the cable end, rub in a neutral grease, e.g.,
acid-free and alkali-free Vaseline
3
Then immediately connect it to the terminal
IMPORTANT! Repeat the steps above whenever the cable is disconnected and
then reconnected.
43
EN-US
To Next Page
Loading...
