Post and beam Posted November 4 Share Posted November 4 The Kiosk that i am fitting out by the entrance to the plot is 20 metres from the house. I am not a sparky and am struggling to understand what cable is acceptable for a 100Amp (23KVA) supply from the kiosk to the consumer unit indoors. The meter will stay out in the Kiosk. Partly because the DNO price to move it later is eye watering. Not only confused by what cable but whether i can install it in the 32mm Consuit sunk 450mm under the lawn. Any details gratefully received as always keith Link to comment Share on other sites More sharing options...
Russell griffiths Posted November 4 Share Posted November 4 Call up a cable company like Cleveland cables, tell them the distance, tell them you have 100amp supply, they will give you a size of cable depending on the distance covered and the voltage drop. over 20m it won’t be anything special. Mine comes 120m from the meter to the consumer unit. Link to comment Share on other sites More sharing options...
Mattg4321 Posted November 4 Share Posted November 4 Expect it’s going to be 25mm2 or 35mm2 depending on the design current. 32mm duct sounds tight. Is it solid wall/rigid with no even remotely tight bends? Not much chance if not imo. Why such a small duct! Get your sparks involved asap Link to comment Share on other sites More sharing options...
saveasteading Posted November 4 Share Posted November 4 (edited) Just done ours after some advice on here. Our electrician asked for 4 core and a separate earth. 35mm cable, even 4 core, is very heavy and stiff. Even a 65mm duct provides a lot of resistance. Ours is in the ground with sand bed and surround and only ducting for 1m into the kiosk and a hockeystick for the earth: it's what they expect to see. In the photo the other duct is for UKPN. ours are too far to the side because of constraints by others, and it should have been longer out of the duct but hey-ho it should be OK. Edited November 4 by saveasteading Link to comment Share on other sites More sharing options...
Post and beam Posted November 5 Author Share Posted November 5 8 hours ago, saveasteading said: only ducting for 1m into the kiosk and a hockeystick for the earth: it's what they expect to see. So i can lay the cable in the trench without any ducting then. My plan was always a 100mm sand bed, cable, 200mm back fill then the 'cable under' tape. Link to comment Share on other sites More sharing options...
saveasteading Posted November 5 Share Posted November 5 40 minutes ago, Post and beam said: lay the cable in the trench without any ducting then. My plan was always a 100mm sand bed, cable Yes. The concern is that it is buried there and and not adjustable. But I've seen cables stuck in ducts where there are curves or being too long a pull. I'm nervous about 1. Ukpn saying it's not right 2. Sparky ditto tho he's seen the pic 3. Ukpn putting their stuff on the right and sparky hasn't room or enough cable 4. Not enough free cable. That was supervision....I had to leave site and hadn't explained 1m above finished slab. There is loads of cable at the other end. Everyone else says it looks fine. The hockeystick shows that the cable isn't deep at that point. There was an obstruction. We should have cut the red end off and only shown the white. Link to comment Share on other sites More sharing options...
ProDave Posted November 5 Share Posted November 5 Generally speaking, the DNO's expect the incoming cable to enter the kiosk at the bottom left and they put their supply head and fuse to the left then the meter above it. That kiosk is large enough that the incoming cable can just make it's way to the left. Consumer side outgoing cable usually on the right. Assuming the DNO fit a 100A fuse the outgoing cable wants protecting by a lower rating fuse to give discrimination, I normally use an 80A switch fuse for that. 1 Link to comment Share on other sites More sharing options...
saveasteading Posted November 5 Share Posted November 5 Fortunately after advice here and from the sparky, I got the bigger kiosk. It is called an S3. Very glad I did, and even without the constraints we had, I now know how awkward that big cable is to handle. We will put a polite note on the backboard asking for ukpn to use the left half. They will draw their new supply through the duct with the drawcord. It is a 15m duct by the site vendor's builder so I hope it's OK. @Post and beam if you still have the choice, get the bigger kiosk option. More buying advice available if you want. Link to comment Share on other sites More sharing options...
Alan Ambrose Posted November 5 Share Posted November 5 >>> More buying advice available if you want. Yes please. Do you have a go to manufacturer? It's not easy to tell which are good quality onlne. Link to comment Share on other sites More sharing options...
Kelvin Posted November 5 Share Posted November 5 Our service cable from the pole comes into the kiosk on the right through ducting onto a 38mm hockey stick. The cable from the kiosk to the house comes into the kiosk on the left. It’s 35mm SWA and also ducted. All on a sand bed as per DNO instructions with warning tape above. The kiosk is a larger 3 phase one rather than a single phase despite the single phase supplyThis was also on advice of the sparky who said the single phase boxes were too tight. Link to comment Share on other sites More sharing options...
saveasteading Posted November 5 Share Posted November 5 (edited) 1 hour ago, Alan Ambrose said: go to manufacturer Mine was made in Glasgow by Kingspan it says on the label. Searching comes up with hand crafted and very expensive options so just search for kiosk S3. Mine was advertised cheapest but had a £100 delivery added. They (waterwise) agreed to reduce that to £12 and I ordered it. £584.40 total. I looked again and the price had gone much higher. Seems to be that plus VAT now. The local electric merchant wanted much more than that. There are mentions from competitors of inferior qualities and it needing a double door. But I'm happy. Edited November 5 by saveasteading Link to comment Share on other sites More sharing options...
LnP Posted November 5 Share Posted November 5 I've got a 3 ph supply and my electrician recommended this kiosk from Meter Boxes UK. W800 x H1064 x D320 mm current price £684 incl VAT and delivery. It seems robust enough and will be big enough for all the 3 ph stuff - don't have everything in there yet. Link to comment Share on other sites More sharing options...
Russell griffiths Posted November 6 Share Posted November 6 Have a look for second hand ones. I’ve picked up two so far, £150 for a large one. Link to comment Share on other sites More sharing options...
saveasteading Posted November 6 Share Posted November 6 56 minutes ago, Russell griffiths said: £150 for a large one Now you tell me! Link to comment Share on other sites More sharing options...
Russell griffiths Posted November 6 Share Posted November 6 1 minute ago, saveasteading said: Now you tell me! It’s a whopper. Link to comment Share on other sites More sharing options...
saveasteading Posted November 6 Share Posted November 6 8 minutes ago, saveasteading said: Now you tell me! For future reference, and the OP, where do you look for a second hand kiosk? Link to comment Share on other sites More sharing options...
Russell griffiths Posted November 6 Share Posted November 6 22 minutes ago, saveasteading said: For future reference, and the OP, where do you look for a second hand kiosk? I looked on e bay and Facebook, found a lad on Facebook who has a yard full of them, located near Swindon if anybody wants one. he also has miles of underground ducting. 1 Link to comment Share on other sites More sharing options...
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