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Metal Conduit needed for <50m of DC cables


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Does anyone have photos of their cabling from their PV panels into their roofs? I might have to redo ours for longevity and CoC coding because the cables are in PVC tubing. I'd like to see examples of before I have to remove roof tiles to go inside the roof to access and re-tube the cables.

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What I did. Used the structure to route them cables, lids on where it was exposed. Underneath the panels, no lids needed, except where lids were needed 😉 covered exposed areas in aluminium tape as per pictures.
All panel cables were tucked in and cable tied to the frames of the panels, or routed in the channels underneath the panels. No cables flapping in the wind.

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For cement tiles, normally one or more tiles are lifted and cables fed to the inside. It depends on the installer how they go about that tho. They may use the same tile where the anchers to the roof trusses were installed. You would normally lift the tile in a place that is covered by the panels for added weather protection. 

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I used a normal Armored SWA cable from my pv junction box on the roof, drilled through the tile then sealed with a UV quality silicone. There is no water going in there. But I am also having second thoughts and might change to pv double insulated cable, still figuring out if this SWA cable is legal or not because it sounds like only double insulated pv cable must be used and not SWA cable. I used 10mm2 and don’t think voltage drop is going to be any issue, also the SWA has its own built-in armoring as mechanical protection covered with another layer of pvc and I could even paint a UV mastic coating over the cable if that would make it more durable. So my question is what is best PV double insulated cable or SWA? (another can of worms)

If I decide to replace the cable I will use a CCG weatherproof box siliconed on top of the roof feeding the cables through into a galvanized conduit running through the roof cavity to maintain the mechanical protection.6A00B5E4-9980-4EB6-8E1E-2AA017EB0B93.thumb.jpeg.0415f7feb3b4325cd771f9fbe6f08cb3.jpeg

 

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2 hours ago, Antonio de Sa said:

There is a better way to go through the tiles.

see photo.

DEKS-Dektite-Nu-Lead-Multicable-Solar-Flashing-Tiled-or-Slate-Roofs_1024_1024x1024@2x.jpg?v=1625079388

Sorry guys I’m a bit skeptical to me it looks like it’s missing some sort of mechanical protection to avoid being stepped on and causing leaks. I would not be happy using it just like that.

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Just now, Gerrie said:

Sorry guys I’m a bit skeptical to me it looks like it’s missing some sort of mechanical protection to avoid being stepped on and causing leaks. I would not be happy using it just like that.

I would think that the idea would be that its under one of the panels so its protected from that ?

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