Solar Energy Systems 01.09.2009
Page
37
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
4.5
Potential Equalization and Lightning Protection
CAUTION
Voltage via Residual Current or Capacitive Charging
Electric shock upon contact with metal parts is possible and can result in damage or injury.
Prevent personal injury by correctly conducting potential equalization.
Potential Equalization
TIP
It is generally recommended to ground the photovoltaic generator and to link it to potential equalization. Potential
equalization is of the utmost importance in the following cases:
Non-transformer inverter
Existent lightning protection system with proper distancing
Establish potential equalization in accordance with DIN VDE 0100 or with the corresponding national
regulations as protection against electric shock.
It is possible to drill two holes in the upper frame profile of the Solrif
®
modules in order to link to the potential
equalization. If necessary screws and tags can be fastened there securely (cf. image 4-25).
Image 4-24: Holes drilled for potential equalization
