Search results

  1. V

    replacement of boiler

    just would like to have some guidence on this please. i want to upgrade my boiler due to it being quite old. British gas have been to have a look and have quoted for a condesing Worcester Greenstar 18Ri high effciency boiler at £3'327.75 ! this price includes the -£400.00 scrapage scheme...
  2. V

    TT Ze reading

    sank an earth rod today to see if we can get a lower value of earth resistance, reading we had came to 80.1 ohms. Nothing is connected proper yet to this new earth as the system is still using the old earth, (in the process of upgrading) figures quoted in on-site guide say max of 200 ohms...
  3. V

    second supply taken from cu incoming

    been to a property today to do a pir, on visual inspection of the garage( the garage had a dedicated metal clad cu suppling two circuits, these were lighting and power circuits) a second cable (swa) is taken from the incoming tails of the cu to an out-house with another cu supplying two...
  4. V

    RCD fcu protection

    can someone clear this one up please. Is it within the regulations to install a power shower in a bathroom with the electrical supply coming off an existing ring main to RCD fcu, then to shower ? or would you have to install a new cu with RCD so the whole ring main that the spur to shower is...
  5. V

    insulation resistance on a ring main

    if someone could just clear this up please, when doing a insulation resistance test on a ring main, be it between live conductors, or between live conductors and earth, would i be correct in saying that you put the crock clips on both live conductors of the circuit and test :?: or just one...
  6. V

    disconnection times

    would someone please explain the reasons for having a 0.4 second disconnection time and a 5 second disconnection time, why is there a big difference between the two readings
  7. V

    Clean earth facility

    Can someone just explain what this term generally means ?
  8. V

    provisions for outside sockets

    Can someone clear this one up please, if you want to install a socket outside i understand that it has to be according to regulations be rcd protected. If the consumer unit has rcd protection for the power circuits already, do you also install a socket that has rcd protection incorporated in it...
  9. V

    Pre-wired transformer

    I would like to know if this is correct in what i am thinking, i have a Skot T105 transformer purchased from Screwfix about 5 years ago. The trany's minimum loading is 35 watts and maximum 105w (hence T105). The wiring for the transformer is pre-wired with 0.75mm primary and 0.75mm secondry. If...
  10. V

    Dimmers on low voltage

    Been at college today and had a discussion on SELV circuits regarding lighting, cable selection etc. Question came up about using dimmers on selv lighting with the tutor saying in his notes basically not to use them because of problems that they may cause to cable / lights. On further...
  11. V

    Domestic Installer Scheme

    Can anyone point me in the correct direction please.Received application form from NICEIC.I understand that i have to nominate two sites for assessment,one being notifiable work and the other not.I intend to use my own property for the notifiable work as in a new consumer unit and the other a...
  12. V

    toilet flushing leak

    when i flush my toilet i get water leaking between the cistern and where it joins the pan,is there a rubber seal that would need replacig in there-toilet approx 20 years old ?
  13. V

    Like for like replacement

    When replacing a light fitting with mains or low voltage down-lighters,is this notifiable or not ?
  14. V

    Low voltage lighting

    When wiring low voltage lighting,is there anything in the regs that say you cannot use cable flex for the permanent wiring of these fittings ?[/b]
  15. V

    low voltage cable selection

    I'm planning on installing 6 low voltage down-lighters,each lamp is 20w.Supply of lamps will be coming from two 20-60 transformers-each transformer controling 3 lights.Cable i plan on using from transformer to each light (which in length is approx 2 metres max to furthest point) via a junction...
  16. V

    junction box's for low voltage

    When installing low voltage downlighters , what is ok to use for junction box's on the 12v side of transformer -5amp ok ?
  17. V

    fuse protection on radial

    i understand that if i wanted to create a new radial circuit off a 30a fuse which is already supplying a ring main,the new sockets (3) on the radial have to be protected by a 20a fcu.What will protect the length of cable (2.5) from the cu to the fcu before it gets there ? does it need any ?
  18. V

    radial circuit

    On a ring main protected bya 30a fuse,would it be possible to run a radial circuit direct from the consumer unit off the same fuse supplying 3 double sockets?would it overload the fuse ?
  19. V

    fire hoods

    A friend is having his conservatory plasterboarded with a false ceiling.He has asked me to install down-lighters in the new ceiling,will i need to install fire hoods above the down-lighters being there is no room above the conservatory
  20. V

    lights fusing

    i have a light in my kitchen with 4 50w bulbs,problem is every now and again the bulbs start to blow,sometimes quite soon and sometimes after a lenghthy time-any ideas ?
Back
Top