B
benten69
Hi all,
New to the forum and looking for some advice. Basically, I have just purchased a new house and the previous owner decided to run some 6mm Twin Earth to the garage, underground in some PVC pipe over a distance of about 20 meters, and only burried about 15cm underground!
As I am getting the drive re-done I am looking to re-do with some 10mm SWA and 32mm polyduct, burried to about 50cm under the new drive.
Now the electrical wiring side of things is no bother what-so-ever. Nice easy job.
However when it comes to the polyduct I have a few queries, so first little background on how the current Twin Earth is laid. When you come into the house through the front door there is a little vestabule where the CU is located. The wall at the side (to the outside world) has been drilled through, then the 6mm Twin Earth has been pulled through the hole, into PVC pipe going vertically down the wall (about 1 foot), underground from the front of the house to the side of the garage, up 1 foot of PVC pipe attached to the side of the garage, then through a hole at the bottom of the garage wall.
So I would like to follow the same route (through the holes in the side of the garage and house that already exist).
I was planning on running the SWA out of the hole in the garage wall, going down the side of the garage wall (clipped direct), into the polyduct which will be laid underground, running it all the way to the front of the house, then exiting the polyduct, going up the wall on the outside of the house (clipped direct), then into the existing hole in the wall and into the house.
My questions are as follows......
1. Do I need to create a proper seal at either end of the polyduct, with some kind of glanding, silicon or something? Basically, I am thinking about moisture getting in.
2. If I need to make a good seal where the SWA exits the polyduct, how do I do it?
3. Can I just leave the polyduct horizontal on the ground and have the cable come out of the polyduct, then make a shallow 90* bend in the cable to bring it vertically up the wall?
4. Would it be better to I make the shallow 90* bend in the polyduct itself so the cable exits the polyduct in an already vertical position?
5. If it is the latter of questions 3 & 4, do I need to seal and prevent dirt, etc getting into the polyduct as it gets burried, and if so, how?
I appreciate this has been a large post, and I would greatly appreciate some advice on the above. I suspect I may be over-thinking it, but would rather do it right the first time, as while the wiring is no issue, I don't tend to do any work with stuff underground, so looking for advice from those who have done it before.
Thanks!
New to the forum and looking for some advice. Basically, I have just purchased a new house and the previous owner decided to run some 6mm Twin Earth to the garage, underground in some PVC pipe over a distance of about 20 meters, and only burried about 15cm underground!
As I am getting the drive re-done I am looking to re-do with some 10mm SWA and 32mm polyduct, burried to about 50cm under the new drive.
Now the electrical wiring side of things is no bother what-so-ever. Nice easy job.
However when it comes to the polyduct I have a few queries, so first little background on how the current Twin Earth is laid. When you come into the house through the front door there is a little vestabule where the CU is located. The wall at the side (to the outside world) has been drilled through, then the 6mm Twin Earth has been pulled through the hole, into PVC pipe going vertically down the wall (about 1 foot), underground from the front of the house to the side of the garage, up 1 foot of PVC pipe attached to the side of the garage, then through a hole at the bottom of the garage wall.
So I would like to follow the same route (through the holes in the side of the garage and house that already exist).
I was planning on running the SWA out of the hole in the garage wall, going down the side of the garage wall (clipped direct), into the polyduct which will be laid underground, running it all the way to the front of the house, then exiting the polyduct, going up the wall on the outside of the house (clipped direct), then into the existing hole in the wall and into the house.
My questions are as follows......
1. Do I need to create a proper seal at either end of the polyduct, with some kind of glanding, silicon or something? Basically, I am thinking about moisture getting in.
2. If I need to make a good seal where the SWA exits the polyduct, how do I do it?
3. Can I just leave the polyduct horizontal on the ground and have the cable come out of the polyduct, then make a shallow 90* bend in the cable to bring it vertically up the wall?
4. Would it be better to I make the shallow 90* bend in the polyduct itself so the cable exits the polyduct in an already vertical position?
5. If it is the latter of questions 3 & 4, do I need to seal and prevent dirt, etc getting into the polyduct as it gets burried, and if so, how?
I appreciate this has been a large post, and I would greatly appreciate some advice on the above. I suspect I may be over-thinking it, but would rather do it right the first time, as while the wiring is no issue, I don't tend to do any work with stuff underground, so looking for advice from those who have done it before.
Thanks!