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  1. D00DY_T00DY

    Loop circuits

    Hey guys, did a loop circuit today going from a 13A connection unit to a ceiling rose and a 3 plate batten lamp controlled by a 1 way, 1 gang switch now it all works fine; Tested and then made live but i'm not sure how it works? so why certain wires connect here and there. It's easy following a...
  2. L

    Problem with 2 way circuit.

    Hi, I've just started an apprentice course so very green but I've been faced with this issue and can't work it out. Two way light circuit in a garage each controlling 8 x 70w fluorescents. I've never seen a two way wired this way and need help understanding it. Each switch is identically wired...
  3. N

    Rj45 cable plugs and sockets

    I have just finished wiring a house in cat5e cable and have connected up all the plugs and sockets, but after testing it with the continuity tester it comes up with non-parallel, this happens when the green and orange cores are connected in the socket, but when I take them out it says connected...
  4. R

    PIR Sensor

    Hi All This question should probably be in the DIY section but it appears to be locked and won't allow me to post a new message on there so.... I am trying to get a PIR sensor working in a house I moved into but I cannot find any advice online. This sensor was set up by the previous owner in...
  5. A

    12V Dual Pole Relay connections...

    Hi all. I have just received a 12V 2 pole 2NO and 2NC and there's no instructions on how to connect it to the power. Normally being a coil negative swapped with positive would make no difference however, this has an LED light and a resister. I am thinking the 12V life wire should before the...
  6. A

    LED lighting strips

    I am looking at producing a production light for filming using natural white light led strips. I will be using 3 5m reels rated at 12v and 2A/5m. I am looking at using 100cm length (therefore there will be 15 100cm lengths) and was wondering whether it is best to have them in series or parallel...
  7. P

    New board connected to V I R cables

    Hi whats the situation on following! went to wire a bathroom today in old terraced property all looked good new board (last 6 months) full niceic member! certificates not to hand YET! looked in loft to find V I R cables! works out from board new cables run 2 mtrs into joint boxes picking up old...
  8. R

    Fire alarm sounder connected to door entry system help please

    Hi All I have door entry system that i installed at a care home. it is a fail safe system but they didnt ask me to coonect to fire alarm system unitl after i had second fixed it all. Long story short i have connected it (through a relay) to a local fire alarm sounder that gives out 24v on...
  9. D

    Looking for ideas for a wired gate alarm

    Hi, I'm after some ideas to make a wired gate alarm, I have tried a wireless version and it's hopeless, despite claiming a 100M range I have found it has to be so close to the house that the 'visitor' is by the door by the time the alarm goes off. My plan was to use bell wire connected to two...
  10. sibbits

    240v heating element connected through 2 phases?

    i was asked to check why a tank heater was not working properly today an came across something im pretty sure is wrong. but was wondering if any of you had any thoughts on the element 240v rated was connected to two phases (one at each teminal ,no neutral) via seperate breakers, i dont know...
  11. uksparks

    CU Connected with breakers taken out first

    Hi, Just thought id share my photos of a CU I finished, well almost finished today, just needs another 6A breaker and a couple of the circuits connecting in, but otherwise, its pretty much there! I am so please that I have discovered this new better way of connecting everything, it feels like...
  12. M

    DOL 3 Phase

    A bit confused... On a 3 Phase DOL motor starter I have seen a few diagrams online and in books etc and they show one side of the coil A1 connected to L1 and then the other end of the coil connected to L3 and obviously going through the control circuit, so the coil is wired phase to phase...
  13. J

    RCD tripping at 1/2 test

    Testing some new cabinets today which had in them a PDU with a 30mA rcd upfront as main switch. ( We build among other stuff, communications cabinets for highways, railways, etc). First one tested tripped on 1/2 fault current. Tried another cab, same thing. Did a ramp test, (tester is Kewtech...
  14. S

    rcd trip y

    hi i was on a fuse board change to day and the new fuse board was switch off and no buzz bar connected and no tails connected but 1 of the circuits which was a radial to the kitchen when you put the neutral in it tripped the rcd can any 1 tell me why :lightbulb:
  15. S

    RCBO timing too high

    Hi All just done a c/u change fitted with 8 RCBO's and when testing the trip times 2 of the RCBO times were too high (40a 30ma =40.8 ms . 32a 30ma = >40 ms )on X5 ? changed the 2 x trips and retest exactly the same times ?! disconnect the circuits and retest trip times perfect, ok so retest...
  16. D

    Rcd not tripping

    I'm stumped, fitted new cu in one bed house today RCD would not trip using test button or on test. The only time it trips is when a load is put onto socket circuit, or the socket on the cooker isolator, no faults have been found during testing. Its a TNC-S system ze of 0.16ohms IR of >999 on...
  17. cliffed

    Unsatisfactory

    Connected new central heating system,did usual test Zs at switch spur for boiler.Also a visual only on the 3 bed property.Noted no earth on oil supply,upfront a 100ma rcd it's a tt system.Told all this to the gaffer,apparently we did the pit report sometime ago,the client knows all this but...
  18. JD6400

    100+ volts down earth ????

    Just had a call from two of our men who are testing an agricultural dealership , they have found 100 + volts on one of the lighting cpc's . To cut a long story short , they have cut around 2 and a half meters out of the 10 meter the circuit ( 1.5 T+E ) and have it laid on the floor . They say...
  19. S

    rcbo tripping times

    Hi all help please,I tested a6 amp rcbo30ma at board with out load connected the rcd results are 310ms at times 1 and 50ms at times5 so I changed it thinking it was faulty tested new 1I fitted got same results I then rcd tested another rcbo in the board another lighting circuit results are fine...
  20. D

    when i press switch 1 switch2 light come on as well

    i wired kitchen florescent loop in method then i took live feed for outside light (flood light with sensor) direct to switch then to light.when i switch kitchen light on the outside light switch come on as well.can anybody help me with this please.

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