VIKRAM SOLAR
INS
TALLA
TION MANUAL
DO
C NO
. VSL/ENG/WI/08/ R
ev01
,
MOUNTING WITH CLAMPS
Vikram Solar has tested its modules with a number of clamps from different manufacturers and
recommends the use of clamps which have an EPDM or similar insulating washer, mounting bolt of
at least M8.
Use at minimum 6 clamps to attach modules to the mounting rails.
Be sure to avoid shadowing effects from the module clamps.
When choosing this type of clamp-mounting method, use at least four clamps on each module, the
6 clamps should be attached on each long sides of the module. Depending on local wind and snow
loads, additional clamps may be required to ensure that modules can bear the load.
Fig 2:
Mounting with clamps
Vikram Solar Limited warranty may be void in cases where improper clamps or unsuitable
installation methods are found. When installing clamps, take measures so as:
Not to bend the glass excessively.
Not to cast shadow on the cells.
Not to damage or scratch the surface of the glass.
To ensure the clamps overlap the module by 13 mm to 15 mm.
To ensure thickness of top and bottom rubber ≥ 3 mm, and side rubber thickness ≥ 1 mm.
The mounting rails shall be designed to limit as much as possible shade on module rearside cells.
A.
Use 6 clamps on the long side. Mounting rails run parallel to the long side frame
Clamp length ≥ 200 mm
A = 330 ± 20 mm
Maximum Load:
Uplift load ≤
1600
Pa
Downforce load ≤
1600 Pa
06