normally

  1. F

    Danlers PIR

    Hi, I have installed a Danlers occupancy PIR in a bathroom. This operates two 4.5watt LED bulbs contained in the obvious downlight housings and a Icon low voltage fan. When the PIR timer runs out the fan carries on running indefinitely. There remains around 50volts at the fan transformer. I...
  2. S

    For Sale Quantity of memshield 3 mcbs new and sq d qoe used mcbs/main switches

    Have a quantity of MEMSHIELD 3 mcbs for sale, leftovers from several projects All are new , but not boxed also some used in excellent conditon Sqaure D QOE MCBS (the ones with the yellow stripe on them ) , B6 , B16 B20 and B32 in various quantities. also 2x double pole 100A...
  3. D

    Trunking cable capacity

    Hey folks, im wiring in a shower circuit, i've decided on singles in PVC trunking (10mm line/neutral) (4mm CPC) I've worked out my cable factor in trunking as 87.2...................Problem is OSG shows smallest size trunking as 50mm X 38mm Thats way to big!!!! Can anyone point me in the right...
  4. W

    NIC Approved contractor periodic assessment

    Got my first annual assessment on wed, since upgrading from DI last year, how many jobs will he normally want to see is it still five or is it less after your initial main assessment?
  5. L

    All experienced CH sparks - what do you normally do in this situation?

    I'm not asking for help on wiring just wondered what other people would do in the same situation. Go to wire up a new boiler, boiler going back in existing position. Boiler requires pump over run. Boiler one side of house, airing cupboard other side of house. All existing controls wired up...
  6. B

    normally open you say??

    Hi all, I am wiring 2 s-plan bolier systems (danfoss) tomorrow and the room stats can be normally open or normally closed. I am using the 230p type, does anyone know if it should be wired as normally closed or open?? also, I have cylinder stats to connect up and i am unsure to make them...
  7. L

    Nightclubs and testing???

    Hi Sparkies Please can anyone tell me how often a nightclub should have a periodic inspection carried out. I thought that if a property had a public entertainment licence that it was every year, but I have also been told every 5 years. Muchas grasias
  8. F

    DPDT relay connections

    Hi please can someone help on relay wiring. I have a dpdt relay of 30 amps(all 230v) i am using a central heating control to power the coil to turn relay on, as i understand i put the switched live and neutral to pins A1 and A2 from central heating control, to energise the coil to switch the...
  9. E

    Where can i find a 100A/63A change over relay/contractor????

    Anyone know where can i find a 100A/63A change over relay/contractor???? hears a little diagram so you know what im after
  10. La Poste

    Contactors vs relays.

    Does anyone know why contactors are more expensive than relays? In my mind they do the same thing in fact relays do more (IE normally on/ normally off terminals) so why the difference in price IE contactors are more expensive, I don't get it. Thanks.
  11. B

    About alarm systems?

    I have limited knowledge about alarm systems, i no only the very basic things about them, but i am wondering can any make outside bell box be linked to any make alarm system? I no its a bit of a strange thing to say but if anybody can pass on any information that they think could help me for...
  12. N

    work

    I am resistered with NICEICE but i am not busy. how can i get more work ,i live in london. I'm hoping someone would be able to help me, Any advice will be greatly appreciated
  13. H

    metal containment within battery store

    does anyone know if there is any chemical reaction with galv conduit within a chemical/battery store? is enamal better
  14. B

    Pilz Relays

    i am an apprentice in a factory doing electrical engineering. i would like to know how pilz safety relays work, and how they are wired into an electrical circuit. any info would be appreciated.
  15. C

    relays, time delayed

    hi, i am connecting a time delay relay onto a lighting circuit. i am going to have a switch on the circuit, when you switch the light on it should go on and stay on, until the switch is switched off again. when the switch is switched off, i want the light to stay on for ten minutes then go off...
  16. Goody

    Isolator switchs for bathroom extractors

    Hi, Isolator switches for the bathroom extractors, could they be in the loft rather than the unsightly position on the wall outside the bathroom? “Electrical Installers’ Guide to the Building Regulations” or the “Red Book” doesn’t say anything about their position. Could someone shed some...
  17. J

    PIR sensor

    Im in need of a really good pir sensor for some flood light, the customer doesnt want it going off when leaves move ect just wondered if any one had any recommendation as i normally just buy cheap one's from screwfix and have notice they have this problem thanks for the help jimmy
  18. sythai

    What make of downlight do you normally use (gu10 style) ?

    Just seeing what make of downlight you normally use (gu10 style) ? Been through a few variations over the years, JCC, Robus, Click, Wilts Plus and as from this week giving Aurora a try. Would be nice to get one where you could easily fit 2 twin and earths in there, rather than resorting to my...
  19. C

    earth leakage tumble dryer

    hi guys tumble dryer is tripping the rcd ,tested the rcd 0.5, x1 and x5 all worked out ok, even ran a extension lead from the house to the tumble dryer (normally fed by sub-main in outhouse) turned on and tripped the rcd in the house, 1) now i was wondering if there was a way to measure the...
  20. R

    Service cut out Fuse the red ones.

    Hi just wondering if anyone knows the rating of the red service head fuses? I havent come across one with a label on it yet and when I pulled one the other day I was going to have a look but they seem to have something like a rivet holding it together where the screw normally is. I'm thinking...

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