radials

radials

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  1. spuff01

    Industrial Radials in SWA

    Hello all, Trained years ago, not done much for about a decade but I've been asked by a friend to add 5x double sockets into an industrial unit, my thinking is to use a radial 32A RCB, 4mm 3-core SWA cleated to the wall (moderate impact risk). Area is small, only about 2-3m from the...
  2. D

    Can I supply 2 separate radials from 1 Fused Spur?

    Hello all. I have just bought my first house but it needs a bit of work. I am re-wiring it and I've found the conservatory ring has been spurred off a socket in the house. I am also getting really low insulation resistance readings between L & CPC on the conservatory ring. I've located the...
  3. Pretty Mouth

    A2 and A3 radials for sockets

    Browsing the OSG, I notice in section 7 that the data for ring finals assumes the load is distributed throughout the circuit, whereas the data for 20A and 32A radials assumes a terminal load. So my question (particularly to those who install radial socket circuits regularly, in preference to...
  4. J

    two radials into an RCBO

    No spare ways in the consumer unit. There are two low current radials on their own RCBOs. Do the regs forbid putting the two radials onto the same RCBO - that is two L wires into the one RCBO?
  5. J

    4mm radials

    Morning all, I‘d really appreciate some advice - not a kick in the pants please - from those more knowledgeable than me! My new kitchen and utility room are each supplied by 4mm T&E radials. Each circuit is protected by a 32A RCBO. Kitchen Single oven rated at 2.5kW connected to single...
  6. B

    RFC and Radials for Computers

    Hi, I have a couple of questions regarding RFC and Radial circuits. Regarding the radial circuits. I have been reading a few post lately regarding the use of a 16amp MCB radial in 2.5mm T&E that when installed on a 16amp MCB that there should be only one socket connected to the circuit. Is...
  7. L

    No end to end 2 Radials on one MCB

    Hello, I have tried to search the forum but have not found anything although this must have been asked a thousand times. When completing a board change for example and there is no end to end on the neutral does downgrading the mcb to a 20amp and effectively running two radials from the same MCB...
  8. edwardcasbon

    Running 2 radials off a spur. Is this possible?

    Hi all, I've a double socket in the loft running off a spur from a bedroom socket. I'd love to add lighting into the loft, and wondering if I can run a socket radial and lights off the spur using a junction box and 2 fused connection units? Please see the attached diagram for a description of...
  9. Sparky10

    Radials V Ring mains

    Hi all, This may be a common topic and may already have been spoken about 100s of times so forgive me in advance. I have always wired in ring mains for my sockets up until recently.. I came across an install where all sockets were wired in 2.5 radials protected by 20A RCBO they had wired 3...
  10. Bobby34

    Moving to radials in Kitchens

    I'm going to quote for a kitchen rewire shortly where the client is having a new kitchen fitted and new appliances and am contemplating doing away with the traditional 2.5 ring final on a 32amp mcb and running a 4mm radial instead. Clipped direct is 36amp so could still use a 32amp but with...
  11. A

    Questions about radials

    First, I am not an electrician, but my brother is and he is helping me on this, I just wanted an extra opinion. I am refurbing a house and want to have some sockets in my shed and IT corner, I want to make sure that I can connect 4 sockets (in each location) on a 32Amp RCBO with 4mm twin and...
  12. M

    Are people moving away from rings

    hi all I’m just wondering are the forum members moving away from doing ring circuits and doing radials instead ? I have been reading that this may be the way industry is going wether this is to aid in the introduction of AFDDs I don’t know , obviously AFDDs won’t work in rings, that’s why I...
  13. M

    Low Ze, high(ish) R1+R2, Got a plan but just had an idea

    So Ze=0.02 and R1+R2 = 0.73 on a first floor ring main. Nearest submain is about 35m away, so that Ze's plausible, and even a slightly indirect route makes Ze=0.03 realistic. So MCBs are going to need changing to Type Cs. Unfortunately for that first floor ring R1+R2 of 0.73 is too high for a...
  14. N

    Ring main become 2 radials

    Electrical ring circuit The electricalian came and did the second fix. But we werent sure if all the wires had been bought through the plaster board. All the sockets work, but we wanted to make sure there are no wires hiding in the walls.. we tested by disconnecting one of the 2 lives going...
  15. O

    Rings or Radials ....

    Just started on a complete refurbishment / extension on a 3 bedroom property which is having a complete rewire. I'm not keen on Dual RCD boards, nor trying to have as few circuits as possible .... So when it comes to the socket circuits I was thinking of: Radial 20A for hall, lounge and...
  16. L

    Can I join 2 radials to make a ring?

    I have 2 radial lines coming out of our CU in 2.5mm that used to run storage heaters, but have now been replaced with a double outlet on each (they are both powered from the same MCB). I have a couple of questions: Can I join these together to turn it into a ring? If so, would this constitute...
  17. Dave

    Can you feed 2 radials from one fused spur

    Before I start, I know this is not usual but I want to know if it's against regs. I'm testing a conservatory ring, feed from a fused spur. There's a Live-Neutral IR fault between two of the three sockets. The cable is embedded in the conservatory bare block wall. If I just disconnect the faulty...
  18. C

    Ovens One at 3.45kw with 16A rating and one at 3.65kw with 15A rating - same radial?

    Hi all, I recently started training to become a domestic installer. I have some practical experience and some knowledge of part P. Also done a little testing but only continuity and insulation resistance. A friend of mine is fitting a new kitchen and will be having two ovens side by side. He...
  19. kingeri

    4mm 32a Radial In Trunking

    Changed a CU today and noticed the kitchen sockets were wired in 4mm t&e surface mounted in trunking and on a 32A breaker. Now, the CCC for this is strictly only 30A (ref.method B). Would anyone be overly bothered about this? Common sense tells me that it is unlikely this cable will be asked to...
  20. rolyberkin

    Two Radials on one MCB

    Is this acceptable or bad practice, have read loads of posts and seems to be a bone of contention, say for two 4mm radial circuits protected by a 32amp RCD? Thanks

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