ring main | Page 7

ring main

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  1. T

    12v on socket ring main after isolation.

    Hello all! I've come across a bit of a problem today as I was changing a socket and got a tingle (Isolated the MCB of course). I tested the voltage and it was pulling 12v. I've found when you isolate the upstairs lights the 12v on the upstairs sockets disappears. Its a 17th edition dual RCD...
  2. B

    Ring Main Breaker Size

    Hi Guys, Recently I had an issue with a ring main in my flat either the circuit was over loaded or the connection at the breaker was poor. Either way it ended up with a burnt out breaker with black scorch marks on the top and melted cables by the breaker. As the flat is rented i'm...
  3. T

    Cooker on ring main

    Ive just looked at a job where the double oven is fed from the ring main with no isolator. The rating is 4.2 kw which would draw 18 odd amps. There is no circuit on the board for a cooker. Im not sure wether it would be acceptable to fit an isolator or would it be best to put in a sole circuit...
  4. D

    Rcd protecting new ring main

    Hi all, I have been to look at a job, in a unit who require extra socket in a office. It is one of those building that has been split into small units, The supply is 3ph. Each unit is supplied from mains with separate meters and a 3pole isolation switch with bs88 fuse 63a. the board is a merlin...
  5. S

    3-Phase / 400V ring main

    Hello, New here, but hopefully someone can help...! We have been tasked with installing a number of very small pumps (21 in total) on a large site. Running individual cables to the 7 areas (3 x 1.0kW / 400V / 3phase / DO.L. pumps in each area) where these pumps are located would be expensive...
  6. S

    Ring Main on but half of sockets not working

    hey guys, I am absolutely stumped with this one. Im working on a house and at the fuseboard all the ring mains are on. (ive checked for r1 continuity and CPC etc.. and its a ring on ther However half of the sockets are not working. Ive plugged in my socket tester and im not getting any voltage...
  7. B

    Ring main too big??

    I recently tested a doctors surgery and found a number of ring mains are too large. r1 1.9 rn 1.9 r2 2.7. Zs 1.47 supplied from a type 2 32 amp breaker could anyone suggest how best to rectify this. Dont really want involved with the remedials but don't usually refuse work. any of u guys...
  8. A

    extending ring main

    I've got a twin socket above where a sink will go, the cable drop is from the ceiling, the socket needs moving 2m to one side. Is it ok to snip the two ring cables high up on the wall and fit two single outlets as a means of connecting new longer cables?
  9. S

    Switched fused spur off ring main for electric fire and LED strip

    Hi Ive been searching everywhere to confirm with regulations that you are able to install a fused spur outlet off the downstairs ring for an electric fire (which is only to be used for the flame effect it provides not for heating as have central heating) and a LED Driver for a strip light...
  10. J

    Ring main issue!

    Hi, I'm after a little advice! I have been Carrying out a P.I.R on a old property. When testing a ring main I received a belt which did take me by surprise! After all I had just disconnected the conductors for the ring out of there terminals. So I isolated the supply and switched on one circuit...
  11. J

    Spurring from ring main

    Talking to one of the lads on site today and he asked why i was adding a 13a un switched spur to the radial i had pulled in to the extension. Explained why it was there etc then he said why don't you run the radial in 4mm, doing away with the need for the spur? I have never come accrossthis and...
  12. B

    Ring main fault

    Need help A property I recently done an EICR on has a fault on the downstairs ring main. The fault is an open circuit on the r1. To shorten the story I managed to believe the fault is under the floor and may have possible joint boxes. But the client has sold the property and didn't want to...
  13. I

    Extending ring main - needs cable join.

    Hi, I have a spur in my loft at the moment that feeds off of the ring main. I wish to put another socket up there and not have to worry about the load on the cable so i've run a 2.5mm cable down the trunking into the socket where the spur was connected with the intention of extending my ring...
  14. B

    ring main

    what is the maximum load you can have in a ring main with 32A MCB? guys can you give some idea please.
  15. J

    Ring Main Tripping RCD, Line to Earth reads 0

    Hi All, Will post an introduction on the new members forum but need to blurt out my question while its still in my head. Me and Mrs JimmyB1988 have moved into our first house, it has a split consumer unit, half on RCD half not, my sockets were on the half without an RCD. One breaker does all...
  16. S

    High reading on a R1 + R2 test on a ring main

    Hi I've done a ring main R1 and R2 test all my readings are around 0.15 ohms apart from one which is much higher at 0.83 it is not on a spur it is part of the ring any ideas or is this ok thanks
  17. G

    Kitchen radial or ring main?

    Hi Folks. First post so be gentle.... I have inherited a house which is in need of a good wedge of TLC, we decided to rip out the old kitchen & start afresh. The wall that held the old consumer unit was going & we got a friend of the wifes son to come round to have a look at what was entailed...
  18. D

    Ring main Snags

    Started on a job today, where the customer wanted a new consumer unit to 17th edition standards, and a check over of Electrics which they know is something weird. Started doing some testing before i ripped it all out tomorrow, and found Circuit 1 and Circuit 2 supplying the main ring, only dead...
  19. R

    Continuity at socket on ring main

    Replacing cracked cover on ring circuit, the mcb was turned off , circuit dead tested with volt meter and got beep continuity on L-N L-E N-E, . Ring working before replaced the socket front . Im thinking because appliances with neons pugged in on the ring and it being TNC system that this...
  20. D

    Ring Main Screeded in floor

    Can someone please advise me on the best way to terminate cables that are screeded into a floor ? A socket's being removed as part of a wall removal and the cables are screeded into the floor so can't simply be pulled back. Any advice greatfully accepted.

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