These aluminum brackets are used, to fasten the profiles to the roof. (There are several versions, but this is for a roof with tiles) |
In this way, the brackets are mounted around a wooden board. |
Because the hook is also under the shelf, one screw is enough to fasten the hook. |
Before I started working at the roof, I used AutoCAD to determine where the hooks had to be mounted on the roof, taking into account: |
The tiles are pushed upwards, so that the planks may be screwed on the roof rafters. In the red circle you see that I have grinded a recess in the tile, in which the roofs hook, has to come. |
The bottom surface of the tile, which will be on the hook, is grinded to make the tile thinner. |
I first mounted to the lower hooks standing on a ladder, and then worked further up. I could use the underlying hooks to hold a shelf where I could support my feet during the grinding of the tiles. I could also place my tools on the roof without slipping down. |
The hook is positioned so that the thinnest part is between the overlap of the tiles. |
After the hook was screwed, he should not press the underlying tile, otherwise the tile may crack afterwards. |
The upper tile should not bear on the hook. |
The tiles should be perfectly connected with each other, just as they did before a hook was mounted between. |
Mounting a total of 66 brackets was more than one day work. |
Fortunately the weather in January 2008 was not to cold and the roof stayed dry, so this work progressed well. |
I first simply attached the aluminum profiles to the hooks, without tightening the screws. |
With a cord I aligned the profiles, both in length as compared to each other. Then I fastened all the screws. |
Before moving the solar panels to the roof, my wife has attached the wires to the middle profile of the panels. |
My brother lifted up the panels. While I was sitting behind the aluminum profile, I was able to grab the panels. |
While I rose, the panel was supported by the profile. So I brought the panels into place. |
The lower panels were held in place by my wife who was standing on a ladder. I screwed the panels on the profiles For the second and third row, I could just lay down the panels in order to screw them to the profiles, because they were supported by the bottom row. |
I was important not to forget to plug the plugs together, because once that the panels are installed, you can no longer reach them. |
The end result is good.
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Here's a detail of a hook, profile and a mounted panel. |
The people of Solar Spirit connected the strings (which are the DC cables). So there will be 3 plus and 3 minus cable wires inside. |
The strings are connected at the bottom of the inverter. You can also see the antenna, which transmits data to the sunny beam. |
The converter is screwed to the wall in our attic. |
Because we have lived several years in our garage, our energy meter is mounted in the garage next to a fuse box. A second fuse box is mounted in our house. In the fuse box, where the electrical power enters the network, people of Solar Spirit installed a surge protector. |
A calibrated energy meter is connected in the fuse box of the house, to measure the generated electricity. |
The entire PV system is protected by a fuse of 40 A |
On March 5, 2008 evening, the installation is completely finished and connected. On March 28, 2008, the installation was finally approved, and officially inaugurated. |
I want to thank my daughter Lore for the pictures she made. |