Rail-like retaining system for mounting framed or unframed photovoltaic module on e.g. roof, has receiving channel receiving grafts with friction and/or in positive manner, where channel dissipates rain water along longitudinal direction

摘要

The system (10) has a receiving channel (29) comprising a side wall and another side wall. The side walls are oriented parallel to each other. The side walls are connected with each other by a bottom leg. An angle is formed between the side walls. The receiving channel is adapted to receive grafts (12) with friction and/or in a positive manner, where the receiving channel is utilized to dissipate rain water along longitudinal direction. A base profile (14) and a carrying leg are arranged in the system.