Grounding, earthing and lightning protection for solar panels

[Derlyn]

The panels we use, are class II rated so they should not be leaking power to the frame. The solar cabling is also double insulated, so unless someone is going out of their way to damage the equipment, you shouldn't experience leakage problems.

Bonding and earthing the panel frames is not only in case of any leakage, but extremely important on houses with overhead supplies, irrespective of whether the panels are class II rated or not. If the overhead wire breaks and touches the panel frame, you will want that supply to disconnect immediately otherwise the frames are "live". This can only be achieved by earthing the frames. This is the same reason that metal roofs, gutters and down pipes must be earthed.

[Shadyshaun]

This is why it is so important to visit the site.

Bonding and earthing the panel frames is not only in case of any leakage, but extremely important on houses with overhead supplies, irrespective of whether the panels are class II rated or not. If the overhead wire breaks and touches the panel frame, you will want that supply to disconnect immediately otherwise the frames are "live". This can only be achieved by earthing the frames. This is the same reason that metal roofs, gutters and down pipes must be earthed.