Hi - I suggest to get the load fully tied down first (a written spec) as food stalls may fully load each outlet with water boilers and cookers etc. If so a domestic rfc isn't really going to cut the mustard, I reckon. All the old things are returning, Cosmic circles ever turning. Hi - I suggest to get the load fully tied down first (a written spec) as food stalls may fully load each outlet with water boilers and cookers etc. If so a domestic rfc isn't really going to cut the mustard, I reckon. Click to expand. Hi All, I'm needing to calculate the cable size for a long ring main. Cable type will be SWA/LSF. The ring is feeding 5no Twin Sockets, on a 32A Type B RCBO, kicker is the length out and back is 300m. Using cable calculation tools can i half the length, 150m, half the current, 16A and allow 20% volt drop? the reason for the 20% is that i've done a bit of hunting and when manually calculating you get R1+R2/4 as you have parallel paths. Using the calculation above i can use a 6mm which seems reasonable, but if i allow the full lot then i need a 50mm, which obviously cant be right. Please make sure you checkout our forum sponsors, many do discounts for members and, they keep the forum free to use. New screed down - trying to figure tiling out approach! posted by GrayD. Hi all, I'm new to the forum but have read many posts over the past year as I have created and tiled a wet room and also created and tiled a bathroom in my house that we are renovating. I've. I can run a small DB closer to the location but each run will still be 150 there and back so i'd still need to run the calcs. The plan to terminate the armour would be to mount the socket on a 6x6 joint box which the armour is glanded into. 6mm will be a pain but at worst it'll be joint the 6mm and out to the socket in 4mm. Are undertile bath seals any good really posted by James Firth. Hi all, In the next few weeks I am looking at getting my bathroom redone and have purchased a Carron sigma 1900x900mm bath. My question is are these undertile bathrooms seals any good? Some. Just looking for a nudge in the right direction if anyone can help?. All the old things are returning, Cosmic circles ever turning. Your original post mentioned 5 sockets on a RFC now it's 40 sockets across 8 RFCs 1 consumers unit would d0, 8 RFCs wired from that CU, don't mean to be disrespectful Mate, but are you sure you are suitably experience to do this type of work?. What's stopping you running a Sub Main, and fitting a small consumers unit closer to the site of the 5 twin sockets, and then install the RFC as normal using 2.mm2 or install a 32A Radial final circuit using 4mm2? What CSA do you get if you calculate for a radial?. Listen, don't mention the war! I mentioned it once, but I think I got away with it all right. I have but I cant fit small CU's all over the stand, and if i tried to do it in one run its 150m so therefore a 25mm SWA is needed, which obviously inst viable for a few sockets. When installing pedestals posted by mutley racers. Do you guys put the waste pipe and the hot and cold inside the pedestals? Some of them are pretty tight!!! Discussion in ' Electrical Wiring, Theories and Regulations ' started by appspark,. I went for a ring rather than a radial as then I can allow the higher volt drop without having to up the cable size too much. It may be a surprise but i am a sparky, i'm fine and happy doing cable calcs on radials but was looking for a bit of help on the ring side of things. Empire posted May 9, 2019 at 5:49 PM. Sean Kennedy posted May 11, 2019 at 12:49 PM. what is the cable size for a ring socket outlet,. Waste Pipe for toilet posted by H573. Hi Everyone, Hope all's okay. Regarding cutting hole for waste pipe for toilet. The floor tiles are down. The waste pipe hole could be slightly higher due to tile thickness. I haven't seen.