Solar cabling solutions get sporty

Lapp Kabel has become an important player in football. In the stadium of current German champions Borussia Dortmund (Signal Iduna Park), a total of 8800 thin-film solar modules were installed on the roof with a total power of 924 kWp. To provide a reliable connection for the modules, Lapp Systems produced four-way Y array harnesses, which were fitted with separate, integral and pluggable overload current fuses at the request of the user.

On the four-way array harnesses, the distance between the coupling points is 10.6 m. The branch is just 20 cm long. The extruded overload current fuse is simply attached to the string and thus connected to the panel series. In the BVB stadium, a total of 160 array harnesses and 640 extruded fuses were installed with 6 km of Ölflex Solar XLR cable.

Environmentally friendly power for the Signal Iduna Park stadium with wiring solutions from Lapp.

At the new Erdgas Sportpark, home of Hallesche FC (German Regional League North), 5094 SE thin-film modules with an output of 535 kWp were installed. For this project, Lapp Systems produced three-way double-Y array harnesses with integrated overload current fuses.

The array harnesses can be produced in a T, Y or double-Y design. The number of strings can be increased depending on the cable cross-section. The electron beam cross-linked Ölflex Solar XLR is used as the cable. It benefits from particularly high thermal and mechanical resistance and is TÜV type approved. Weather- and UV-resistant polyamide resin is used for the extrusion.

The Lapp cabling solutions bring tangible benefits: thanks to the use of array harnesses, up to 60% fewer solar cables are required between the modules and the inverters, which means material costs are significantly reduced. Furthermore, the plugged-in, separate fuses facilitate maintenance and repair.