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  1. A

    Bathroom extractor fan switch query

    Hi there I hope this is the right place. I am having a house rewire, and the electrician has told us that it's against regulations to have a specific switch for the bathroom extractor fan. It has an isolator switch, and all switches are outside the bathroom, but at the moment his configuration...
  2. DT1991

    Can anyone help with a fire alarm query.

    Can anyone assist me in finding out if all cables involved with a fire alarm system must be FP or similar. By fire alarm I mean sounders, call points, door holders etc. Thanks.
  3. HoverSPRX

    Max Demand/Diversity Query

    Hello All, Iv been asked to pick up the remedials on someone else's EICR that was done last year on a school for Deaf Children. One of the items listed on the report is the conductors leading to the sub mains from the main panel are undersized. I popped the cover off to have a look and sure...
  4. E

    Earthing System Query

    Hi, just a quick question... I’m at the stage now where I’m being pretty nosey at other people’s consumer units/supply set ups etc to further improve my understanding and recognition of the different earthing systems found in domestic properties. The image below was taken at a member of my...
  5. B

    Query about 12 & 24 hour supply

    Hi I'm new here . I have a simple question please. At work we have *12 hour supply* and *24 hour supply* labels on some of the distribution boards. What is meant by this please???
  6. 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...
  7. 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?
  8. 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...
  9. 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...
  10. 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...
  11. 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...
  12. 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...
  13. 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...
  14. 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...
  15. 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...
  16. 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...
  17. 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...
  18. 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
  19. 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...
  20. 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...

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