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  1. J

    Low IR on new radial circuit

    Hi All, I have a very mystifying problem on a very simple circuit. It is a new radial circuit for a garage power supply, it's wired in 2.5 T&E 16A MCB 30mA RCD. The cable goes directly from the dis board up the wall in trunking to the roof space where it is clipped to the joists before...
  2. D

    Ring, Radial and Earth

    Hey guys! Hope some of you can help me out quickly! So I've got incoming PV and battery supply of 2000W at roughly 8.7A. This is through an RCBO and to a RCCB 30mA garage style consumer unit, just with a 16a and 6a MCB. The 16A serves 5 sets of double sockets with about 15M of 2.5mm. 1st...
  3. MarkRibbands

    13A and 16A sockets on the same 20A radial. OK or not?

    I’ve just had a ‘robust exchange of views’ :) with a visiting engineer about the 16A sockets in my workshop. These, together with local 13A sockets, are run from radials in 2.5mm, protected by 20A RCBOs. I say it’s fine to have say a couple of 16A interlocked sockets, and lots of 13A doubles...
  4. dokkan1080

    32amp radial

    In a school today helping an approved contractor. There is a over door fan heater on a 32amp radial fed off a rotary isolator. It then goes into a bank of 3 switches that are used to control it. The swtchs are double pole rated at 20 amps. Isn't that a danger being on a 32 amp 4mm mcb
  5. I

    Radial circuit from 20A MCB

    Not sure if this is possible but just putting it out there... Current Situation Need to tidy up some of the mess in the garage from the previous owner of the house. Wires going all over the place. Additionally, all of the upstairs lights, the garage light and an external light are all radial...
  6. J

    Thoughts on overloaded radial?

    Hi all Pretty new to working for self. Got call out yesterday for a ring circuit that kept tripping rcd. I identified the faulty cable which had low 0.05 IR reading L to N. I followed this to where next point should be but on opening circuit found only one cable...not good. On closer inspection...
  7. Spike1947

    Light circuit from 16A Radial

    Hi Scenerio : a JB that feeds a couple of lights ! , (nothing else) in a small Barn Building ( storage use only ) , it is fed via a SWA 2.5mm2 from a 63A RCCB , CU via a 16A mcb ( feeding 2 double sockets ) in the main storage barn shed , there is no isolator in the small barn , I am wanting...
  8. N

    Ring or Radial

    Hi, Been out of the industry for 20 years and have found an interesting spark on YouTube who is very entertaining, he made a comment on one of his videos, Rings Vs Radials, would be interesting to see your views this in todays world.
  9. B

    Radial circuit split 2 ways

    Hi all, working with a spark today, basically dodgy wiring in kitchen junction boxes everywhere, all ripped out, now all we’re doing is a new 6mm cooker feed and radial socket circuit, basically new 2.5mm radial circuit from CU to one side of kitchen where spark I’m with has decided to put a...
  10. A

    Commercial Radial circuit help

    Hi, I went to look at job; it is a 2.5mm2 radial coming from the CU (from a 32A MCB) to two sockets and the sockets are using two appliances which are a 3.6 kW combi oven and a 2.5 kW 2 plate electric hob, what i've been told that it trips at the CU and sometimes it doesn't trip and the...
  11. J

    What tests for new radial circuit

    Job is to install one or two new sockets in a commercial premises. Possibly on a new radial circuit or an extension to ring. If extension on a ring them a Minor electrical certificate is required together with all relevant testing. However if a new radial circuit is the way a full EIC...
  12. G

    Trainee Loft conversion wiring

    Hi there I’m working on a loft conversion, just adding two small bedrooms in existing space. Would it be ok adding a radial circuit off a 16 amp MCB ? And how many sockets could I have? Thanks
  13. S

    Radial vs Ring in a standard 3 bed

    Afternoon all. I normally cable my first fixes in a standard 3/4 bed as follows: Ring up Ring down Kitchen ring. I was at a trade show the other day and got talking to a few people and they said they only use a ring in the kitchen. Radials up and down. Got me think what’s the standard? I know...
  14. D

    Radial final circuit

    Hi guys, just started rewiring my house, and noticed the sockets in the attic wired in radial instead of ring. Can I leave it in radial? There are only 2 sockets up there, unlikely there will ever be much load on it. I was thinking of wiring it 2,5mm2, (as it is now) on a 16A beaker. Any...
  15. B

    Adding Light to Power circuit.

    Adding a light to a Radial Power Circuit - the circuit is wired in 2.5mm and on a 20A MCB Now if I add a FCU to my Radial and then wire my light in 1.5mm this should be safe? But what if I don't use a FCU but wire the light with 2.5mm cable? what dangers are there.
  16. J

    What’s going on with this radial

    Called to a property which has just been sold to do an EICR The sockets down stairs including the kitchen were on a 16a 2.5 radial the issue being the Zs for the first couple of sockets were about average readings but the last few and the sockets in the kitchen went from 0.90 ohms to 1.19 ohms...
  17. B

    Electrician Radial Adding socket into radial circuit protected by 32amp RCB

    Just after a bit of advice regarding the following. First up I am not electrically qualified and know limits of what I would and would not attempt but am electrically read. The situation is that I have a radial power circuit fed from the consumer board and protected by a 32amp RCB feeding 5...
  18. Y

    Can I use a 32 amp rcbo on a radial circuit.

    Hello Is it OK to use a 32 amp rcbo on a radial Circuit. Cable size is 6mm2, cable length is about 15 m. There are 4 double plugs on the circuit. Loads are kettle 2.2 kw, washing machine max 2 kw, electric cooker 1 kw. Cheers
  19. sjhall

    4mm t&e radial circuit

    Hi Lads Do any of you guys run radial socket circuits ( with multiple points ) in 4mm ? Do you find 2 x 4mm in the back of a socket a squeeze? Only asking as I've just been passed 2 x 100m drums of 4mm off the lad doing the solar on a job I'm on for doing him a favour.... so 4mm radial...
  20. P

    Radial or Ring Final Issues

    Hi all I have just moved in and am in the process of adding some sockets. Am I right in saying that I can add to the circuit regardless of which type of circuit it is as the MCB is a 20a, obviously as long as I'm using 2.5mm t+e not speaker wire etc. I get the issues with RFC where 32a fuse...
  21. B

    6mm 32A radial to supply 2 3.65kw 16a ovens

    Hi, Doing wiring for a kitchen co. Done plenty of these recently, but we've been doing all wiring from scratch and have just run 16a radials direct from board. In this instance it's a ballache to run back to board, and I've got a perfectly decent 6mm cable from board to oven location. I'm...
  22. P

    Domestic Radial lighting not used in new build home

    Hi, My son had a water leak last night in his upstairs bathroom which resulted in the water pouring through a couple of the downstairs ceiling roses. In order to rectify the situation we turned off the power to the downstairs lighting circuit and removed the covers and pendants in order to...
  23. J

    Radial Socket Installation of 8 Double Sockets

    Hi The sockets are already in place for the upstairs bedrooms and hallway but just need to be connected to the Consumer Unit, which MCB would I need to use? Also should it be 2.5mm Twin and Earth? Thanks for any help on this :-)
  24. M

    Domestic Similar places in two circuits causing trip

    I have two line wires coming out of the top of the 'Sockets' B32 MCB. One of those line wires connects to 3 sockets in the bedroom and the other wire connects to 5 sockets in the living room. Each socket takes two line wires, one to power the socket and the other to pass the current onto the...
  25. GBDamo

    odd one seen today, three FCUs each for a 3KW immersion on one 6mm radial

    As title, Megaflo hot water cylinder has three 3KW immersion elements. Each fed from an FCU in 2.5mm 3093Y flex. On the surface all looked good. Initial testing showed no earth continuity on two of the elements. Closer inspection showed all FCU covers were loose. Further inspection showed...
  26. M

    Ring circuit or radial . Is this positive

    I was talking to 1 of the QSs today and was told that in amendment 1 of the 18th he thinks it will say about going back to doing radials rather than ring circuits. I'm not sure how true this is but the guy is friendly with NICEIC people and seeminly this was discussed at a recent road show (...
  27. B

    2.5kw split aircon unit on 20amp Radial

    I currently have 4 double sockets on a 20amp Radial, I am looking to get a small air con unit (2.5kw I think) to cool a 5m by 3m space. Bearing in mind the only things plugged into the sockets are 2 PC and 2 Monitors at most, do you think a 20amp feed is enough? It is a right pain to try and run...
  28. S

    Domestic 2 FCUs from a radial in garage

    Hi, I'm planning my wiring for my garage and can't find the answer easily for this question my garage is connected to my house, there is a 2.5mm cable reel fed from the CU. I will be supplying 7 double sockets and 2 led light fittings from this cable I will put a 3amp FCU to supply the lights...
  29. S

    adding fused FCU to radial circuit in kitchen

    Hi, I am fitting a new kitchen and would like to know if it's ok to connect switched 13amp FCU onto a radial circuit. The kitchen has a radial circuit with 4 x double sockets fitted - 2.5 twin and earth cable. I would like to add 4 x 13amp switched FCU's - one from each double socket so as I can...
  30. R

    16amp radial circuit additional sockets

    Hi all I am looking to add 2 additional 2G sockets to an existing 16amp radial circuit that has 2 1G sockets on it. It’s a 3 story house and the consumer unit is in the Cellar. There are two rooms on the top floor and two radial circuits are feed from the one 16amp MCB with no RCB fitted. I...
  31. E

    Radial circuit for appliances

    Refurbishing a kitchen and was looking to put the appliances on a radial circuit as they are all very close together for spurring off the ring main. Had originally planned 2.5mm t&e and 16 or 20 amp fuse for Fridge freezer, dishwasher and hob with fuse spurs in the cupboard. Client now wants to...
  32. S

    Radial socket on landing and rear bedroom appears to be powered from lighting and radial

    Hello all, first time posting here, was hoping for some theories/advice regarding a confusing situation. Essentially we were looking to add one or two sockets to a upstairs bedroom (40's build rewired in 80's I think with black/red colour system). It currently has two sockets and there is also...
  33. A

    ring or radial and As the Kitchen/living room extension

    Hi guys I’m due to carry out a part rewire for now on my parents 1930s home in the living rooms and bedrooms etc and eventually the kitchen and living room will be knocked through into one room in a few months time. I’m going to update a downstairs socket circuit, upstairs socket circuit...
  34. S

    Radial or spur off of ring

    Hi guys, Just an initial heads up, I’m just level 2 qualified, so go easy on me. I’m currently adding some sockets in my house. So I thought I’d break the ring, extend it and add them in. Took the back off a socket and it only had one cable going into it, so presumed it was a radial. I’ve...
  35. A

    4mm Radial and re-wire Dillema

    Hi new to the forum and thanks for any help, Parents have bought a typical 1930s 3 bed semi which had a rewire in the early 70s. I’m guessing the consumer unit has been updated since then because all circuits are protected with RCBO’s ( 2 x 6amp lighting circuits 1.5mm cable, 2 x 16amp radial...
  36. steptoe84

    Domestic Running a radial circuit in bedroom. He

    HI, I'm renovating my house room by room and am turning what was the kitchen into a bedroom. Anyway, I've ran a new 2.5T&E cable from the consumer unit to the bedroom and want to know if this is an acceptable way to wire the room as it will make it much easier if this is allowed. Just not...
  37. P

    Voltage drop on radial and ring

    when working out voltage drop on a lighting circuit to work out the amp's (lb)I don't have a problem, say 10 lights @ 100 watts each 1000 watts 4.35 amps but what should I apply for a ring final and radial circuit.
  38. C

    Adding single radial sockets to Ring as spurs

    Hi, I have recently completed an intensive electricians course and I am at the stage where I am trying to get practical experience wherever I can. One of my jobs, which I am planning to use to join a competent person scheme, is to change my consumer unit and wire up my extension. At present...
  39. Soulsurfer

    Ring final & Radial circuits off one mcb ?

    Another straight forward job today has turned out to be a right mess once again so I thought I'd get some thoughts on the following before I start ! So an old MK LN59 board, feed to garage sockets on a single 2.5mm t&e from a 15A mcb and also spurred to feed a boiler on S plan, Next ring final...
  40. charlie76

    Stramit - Straw Walls - Installation Reference Method

    Evening all. Working on a bungalow at the minute with the dreaded stramit walls. All my new cables have been surface, galv capped and the builder is dot 'n' dabbing over. There is an existing radial serving sockets in the living room which is not being rewired. For those that are familiar with...
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