Solar Energy Systems 01.09.2009
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Mounting Directions for In-Roof Photovoltaic Systems
Ernst Schweizer AG, Metallbau, CH-8908 Hedingen, T41 44 763 61 11, T41 44 763 61 19, www.schweizer-metallbau.ch
4.3 Wiring
TIP
Lay the inverter cables and the circuit connecting cables before installing the modules.
Do not connect the modules in vertical circuits: the modules can have different temperatures and thus
different outputs.
Avoid induction loops when wiring the circuits.
TIP
Only high voltage cables and ultraviolet and heat resistant solar cables are permissible for wiring photovoltaic
systems (e.g., Solarflex 1 x 2.5 mm² or 1 x 4 mm²).
1. Connect the inverter cable to the first module or to the lowest module of the circuit.
2. Connect the modules in horizontal circuits with circuit connecting cables and plugs.
3. Connect the module circuits by means of the circuit connecting cable (not included in the delivery).
4. In case of exposed areas decide on site about the possibility of lightning protection measures.
Image 4-3: Correct laying of cables
1 Cable from the circuit to the inverter
3
Module cable with plug
2 Socket
4
Circuit connecting cable
