ClicSeam™ Safety and Installation Manual
17
Grounding
Each PV system must be connected to the grounding cable to ensure electrical safety.
All
Roofit
.solar products that are assembled with each-other are galvanically
connected through the combination of the fastening clip and screw.
Roofit
.solar
recommends 2 grounding cables per roof, to provide the possibility to measure ground
connection quality.
If the building has more than one type of active surface on the roof (i.e.,
Roofit
.solar Prod-
ucts covering different sides of the roof), they can be connected in one grounding circuit
to minimize the number of grounding cables as shown in the picture. Double grounding
of the PV system is recommended even when applicable regulations, code requirements
and standards do not require any safety-related grounding.
The grounding should be initialized by screwing a self-tapping A2 or A4 stainless steel
screw, ST 4.8 according to DIN 7981C with a length between 10 mm and 16 mm. The screw
is connected to the grounding conductor on the uppermost metal sheet of the roof under
the ridge cap. The grounding is finalized by connecting the grounding conductors to the
equipotential grounding.
