query

  1. I

    Ryefield Query

    Hi all, Been asked today to quote for installing a Ryefield board which will in turn supply 1 x shop with 3 phase power and also 3 x flats with single phase power. My question is... Would the DNO connect directly into the Ryefield board or will they expect some form of isolation which I will...
  2. M

    Emergency Lighting query

    It's been a while since I tested emergency lights and I just wanted to clarify something. If the lights not working and the green LED light is off, is this an inverter and if the LED light is off and the lights still not working is this a dead battery?
  3. M

    House supply questions

    Hi all, Got a bit of a query with my mains supply where it enters the house. Its in an empty room that i'd like to either fit a bathroom in (as in my picture) or a toilet and wash basin. Would I need to have this DNO fuse etc moved or can it be boxed in with a water sealed access hatch? All I've...
  4. BeeJay2

    Smart metre LED's query.

    Hello all, My present duel fuel supplier, Bulb, doesn't use the smart meters installed by my previous supplier, British Gas. The 3 LED's on a separate unit linked to the electric meter are, top, (WAN) Green, on permanently, middle, (HAN) Red continuous flashing & bottom, (PWR) Green which I...
  5. J

    Rather Low R1+R2 Query

    Quick query I’m hoping someone can clear up. Im just looking at an example of a schedule of test results in a book I’m studying and I’ve come across an example I don’t understand. A lighting circuit protected by a 6amp 60898 Type C (Ref Method 100) using 1.5/1.0 T&E is measuring out R1+R2 at...
  6. I

    Another SPD question & groupin query

    In a domestic situation where dwelling would be used for air b & b would it still be classed as single dwelling? Would it be classed a comericial dwelling as people staying there and paying , also would there be requirement for surge protection , I Would assume so , as items in property value...
  7. Andy C

    EV charging point query

    I have a nice job on in a few weeks which includes wiring up a solo chargepoint EV point. The pod doesn’t have its own RCD like Rolec do. I am rewiring the house and intended to use either a type A RCD or RCBO. As they also detect small levels of DC leakage. I use BG consumer units but I...
  8. T

    Complete dwelling refurb inc re wire query

    Hi all New here. Apologies if this is in the wrong forum! I have a query regarding what will and won’t be possible with regard to a property I own in the north east. The 3 bed semi is empty and being completely stripped out of all finishes and all services inc water and plumbing. Right back...
  9. I

    Quick Thermostat Query

    Good morning all, Probably quite a simple question for all of those who use thermostats/temperature sensors regularly. I'm in need of a thermostat which has the ability to close it's contacts once the temperature in the room has reached a degree which is deemed too high. Do most thermostats...
  10. Alrebcon180

    Main 185mm earthing query

    Hi guys bit of knowledge needed.. Have a 2x185mm 3phase supply going to a panel board with 800amp main switch from a UK Power networks transformer about 15m away, also run with them a 185mm earth which goes to a earth bar next to the panel board where all the outgoing swa earth overlays are...
  11. R

    Electrician Jobs RCBO trip test query - Testing wrong or is there a fault?

    Hi, Can anyone please explain why my friend's 30mA trip RCBOs passes the trip test (e.g. x5 is less than 40ms) when the test is done at the consumer unit but fails when the test is done at the sockets. Is he doing something wrong or is there a fault somewhere (the RCBO or the circuit...
  12. J

    Earthing Copper Pipe Lamps Query

    Hi, I build lamps from copper piping and various other bits and bobs (including the occasional trumpet!!). The lamps are made from sections of copper pipe connected to elbow joints and other copper plumbing connectors. The lamp terminates at a brass lampholder at one end and a plastic clamp at...
  13. the pict

    A query about KVA and cost

    A customer has been quoted 11,000 quid to upgrade to 3 phase a whole load of cable and a pole mounted 11kva are required is 11kva a standard or are they punting us one so to future proof further requests for loads P
  14. S

    Bypassing PIR and installing switch query.

    Hi guys hope to hear some suggestions from your fine selves. I have been asked to bypass 3 PIR sensors in an office and install a standard 1g switch. On closer inspection it appears the PIR's have cat5 cable running to and from them into some sort of control module where the light fitting are...
  15. W

    Hi, FICA candidate query

    Hi, a nervous FICA candidate here, sitting my retest next week on the Underpinning Knowledge multiple choice part. Earlier on today I posted a question I was stuck on, it was in the trainee page. I have got a reply but it says I am unauthorised to enter that area so I can view the reply. Can...
  16. mrloy99

    Irish job query for testing

    Hi I have a testing job to do in ireland.The test sheets i've to use ask for the R2 reading only..not R1+R2.....It is impractical to use the long wander lead method so I was thinking to work it out from R1+R2-(R1+Rn)/2=R2.........I was thinking to use this as opposed to R1+R2/2 to take account...
  17. Y

    MC4 Connector/6mm Cable Query

    Hi Guys & Girls, Can anyone help. Im trying to find evidence that standard MC4's wont fit 6mm cable. If fitted it will result in Riso faults, loss of generation etc. Reason being using a standard MC4 your unable to tighten the gland up fully, if tightened to much it cross threads making the...
  18. A

    Electrical heating system Query

    Hello!! I am writing here to ask if anyone can help me with an issue I am facing. In the apartment I live in, I have Applimo electric radiators mounted into the walls and a radiator in the bathroom. There is also a Sunvic thermostat (old one, not digital) mounted onto the wall in the living...
  19. S

    Mains Powered Medical Headlamp repair query

    Dear Electricians, I am a veterinary surgeon and need help from someone in the know as to how to bring an old bit of equipment back to life. It is a headmounted lamp with a special mirror to allow examination of the retinas of dogs and cats, however my query relates to the power supply for the...
  20. A

    Socket location query

    I am looking to install a fused spur and double socket in a new place, but the new place is located on a wall which has the soil stack nicely boxed in. The question being is this acceptable???
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