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benkler14013 May 2019 21:25Hello everyone,
We have been living in our own home for two years now, and the gable end wall needs to be replastered.
This might be our last chance to expand the exterior lighting, which was previously overlooked...
On May 9th, the scaffolding will be installed, and within the following two weeks, the existing plaster will be removed, new plaster applied, and finally painted.
We currently have one outdoor power outlet with permanent power supply located in the center of the gable end.
I would now like to tap into this outlet and extend the exterior lighting on the gable side by adding four more outlets.
So my questions for you are:
- How deep would I need to chase the wall to lay the cable? What is the minimum depth? (The shallower, the better.)
- I would have to run the power cable horizontally across the entire gable end. What is the best way to secure it in the chase? Similar to indoor installation, fixing it every few centimeters/meters with some plaster?
- Since the existing outdoor power outlet is situated approximately in the middle, I would need to run one cable to the left and one to the right, resulting in three cable ends at the current outlet location, which might cause space constraints. Is there a better solution?
Thank you very much.
We have been living in our own home for two years now, and the gable end wall needs to be replastered.
This might be our last chance to expand the exterior lighting, which was previously overlooked...
On May 9th, the scaffolding will be installed, and within the following two weeks, the existing plaster will be removed, new plaster applied, and finally painted.
We currently have one outdoor power outlet with permanent power supply located in the center of the gable end.
I would now like to tap into this outlet and extend the exterior lighting on the gable side by adding four more outlets.
So my questions for you are:
- How deep would I need to chase the wall to lay the cable? What is the minimum depth? (The shallower, the better.)
- I would have to run the power cable horizontally across the entire gable end. What is the best way to secure it in the chase? Similar to indoor installation, fixing it every few centimeters/meters with some plaster?
- Since the existing outdoor power outlet is situated approximately in the middle, I would need to run one cable to the left and one to the right, resulting in three cable ends at the current outlet location, which might cause space constraints. Is there a better solution?
Thank you very much.
benkler1401 schrieb:
How deep would I need to chase the wall to lay the cable, or what would be the minimum depth? (The less, the better)
- I would have to run the power cable horizontally across the entire gable wall.. That is not allowed for structural reasons.
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benkler14013 May 2019 23:37That's why I was considering about 2cm (1 inch) below the old plaster. I think that would be around 1cm (0.4 inches) in the masonry. That should still be adjustable with 36cm (14 inch) thick bricks, right?
With 36cm (14 inches) blocks, almost anything is allowed when making channels for wiring, both vertically and horizontally. However, there are designated installation zones. I have some experience with electrical work, but mostly in the industrial field, so I’m not very familiar with typical residential installations. Therefore, don’t take my statement as absolute fact.
I would do it the same way as you plan to do it in your house. The proper way, however, is to stay within the installation zone. I’ve attached two photos for you. Fasten the cables either with nail clips or just some plaster. Something will be applied over it anyway later on. The main thing is that the cable doesn’t fall out. The channel depth is, as mentioned above, almost irrelevant. Even 3cm (1¼ inches) should be fine with 36cm (14 inches) blocks as far as I know. Since you only have one cable going left and right, I would use a 1cm (½ inch) channel.
That depends on your judgment. I would probably go with a single junction box anyway. The light fixture will be installed there later on anyway. It is important to use airtight boxes and ensure the sealing remains intact. In the end, just feed the cable through. Just search “Kaiser outdoor junction box” online. I’m attaching a photo of one as well.
I would do it the same way as you plan to do it in your house. The proper way, however, is to stay within the installation zone. I’ve attached two photos for you. Fasten the cables either with nail clips or just some plaster. Something will be applied over it anyway later on. The main thing is that the cable doesn’t fall out. The channel depth is, as mentioned above, almost irrelevant. Even 3cm (1¼ inches) should be fine with 36cm (14 inches) blocks as far as I know. Since you only have one cable going left and right, I would use a 1cm (½ inch) channel.
benkler1401 schrieb:
- Since the existing outdoor fireplace is located roughly in the center, I would have one cable going left and one going right, so there would be three cable ends at the existing fireplace (which might cause space issues). Or would there be a better solution?
That depends on your judgment. I would probably go with a single junction box anyway. The light fixture will be installed there later on anyway. It is important to use airtight boxes and ensure the sealing remains intact. In the end, just feed the cable through. Just search “Kaiser outdoor junction box” online. I’m attaching a photo of one as well.
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benkler14017 May 2019 12:20Thank you all in advance.
What are your thoughts on chasing grooves in the wall? The blocks are 36cm (14 inches) thick, reddish and porous, filled with polystyrene beads.
I want to chase grooves as little as possible, so my question is: would you cut a groove only about 1cm (0.4 inches) deep, just enough to fit the cable, and then secure it every few centimeters with some plaster? After that, the normal base coat plaster would be applied over it. Or would you go somewhat deeper?
Regarding installing a flush-mounted box in the wall, I would rather avoid it. The lamp would be very close, since it’s a spotlight, and that would mean a fairly large hole in the wall.
How would you recommend proceeding with chasing grooves? Any suggestions on the tools or equipment to use?
Thank you very much.
What are your thoughts on chasing grooves in the wall? The blocks are 36cm (14 inches) thick, reddish and porous, filled with polystyrene beads.
I want to chase grooves as little as possible, so my question is: would you cut a groove only about 1cm (0.4 inches) deep, just enough to fit the cable, and then secure it every few centimeters with some plaster? After that, the normal base coat plaster would be applied over it. Or would you go somewhat deeper?
Regarding installing a flush-mounted box in the wall, I would rather avoid it. The lamp would be very close, since it’s a spotlight, and that would mean a fairly large hole in the wall.
How would you recommend proceeding with chasing grooves? Any suggestions on the tools or equipment to use?
Thank you very much.
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