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confused

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  1. SolarCity

    5 year product warranty - 25 year performance warranty: confused!!

    Can anyone help me work this out? Most panels have a 5 year warranty on the panel yet have a 25 year warranty on the performance of the panel. Isn't this a bit odd? Surely if the panel malfunctions, then the performance will also be affected. Therefore, haven't they all effectively got a 25...
  2. S

    Confused

    Ok, I bit the bullet and bough PvSol, now I'm trying to design 2 systems on it - PC about to go out the window :mad: Can't figure out how to add the panels onto the roof (already identified panels and inverter and roof size and boundaries) Did a test report and the yield is way below...
  3. J

    very confused

    hello all today me and the boss went to a PIR on a 4 bed house. there are a couple of things i am a lil confuselzed about... 1) we carried out a Zs test on the lighting cct. although when testing the bulb was flickering on and off even though the switch was turned off? 2) on that same...
  4. T

    testing

    wiring 2 new flats can i sign test sheets/certificates i am qualified approved electrician :confused::confused::confused::confused::confused::confused::confused::confused:
  5. M

    Confused ??

    Hi i am nearly finished my 2330 level 3 and will be doing 2392 and also 17th edition regs in the next few weeks. A friend in the building trade has offered to put a load of work my way as long as i can test and inspect and certify my work. So i thought that once get all my certificates i would...
  6. M

    *URGENT* Confused about fitting a ceiling rose

    Hi, I have very limited knowledge of electrics and I am in need of some help. I've just gone to change the ceiling rose on my landing, took all of the wires out of their appropriate places, and can't remember where to put them on the new one. It's one of them that when you flick one of 2...
  7. G

    Confused about pv systems commissioning test sheets.

    Trying to get my head around pv system commissioning sheets ready for future mcs assessment. How do i work out my array parameters Voc (stc) and Isc (stc). How do i find out the dc rating (V) of the protective device and also can anyone explain how string test method annex -2 Voc, Isc,Sun is...
  8. B

    part p confused

    hi all i am a recently qualified domestic electrician and was tought that any work out doors was notifiable. just phoned building control about installing some garden lighting and was told that i didnt need to let them know,does this rule vary from city to city or is the person on the other end...
  9. D

    Neutral fault on ring (12 volts)?

    Got a call from a friend who's just changed his old c/u for a new one. He said everything seemed fine when he swithched it all on until he plugged his socket tester in and it said he had a neutral fault. He said the neutral bar was live until he took the two neutrals from the ring out of the...
  10. R

    really confused

    hi , got a really big problem,been trying to find a fault for week nw.The problem is though,when i wnted to see if it was a main neutral incoming causing the problem i turned off main switch disconnected neutral and switched mains on without nuetral but the whole installation still worked...
  11. M

    Sub board needed or not??

    Looking to fit a twin socket and florrie in my shed, would it be ok to just fit a socket and s/f spur next to it for the florrie, or have i got to fit a sub board (2 way jobbie), all advice greatly appreciated, i think the sub board, but is it Realy needed???:confused::confused:
  12. C

    Confused

    I am looking to start training in September to be a Spark and have looked at a few colleges One college offers the 2330 level 2 i believe over 2 years, 2 evenings a week The other college offers a course called Building Services Studies - Electricial Installations Course summary - This one...
  13. Amp David

    Marking on former of conduit bender

    Why is there a mark stamped into the former on some conduit benders. Is it to line up the mid point of a crank set so the length of the conduit doesn't become to short when the set is pulled. Seen a video on doing crank sets, and the guy marks 50mm from the edge of the former and make a mark...
  14. O

    3 plate wiring at switch??

    As a training electrician i yesterday came across, for the first time, the 3 plate wiring method wired into a switch. I was slightly confused on how to terminate this? There were 3 twin and earths present (feed in, feed out and what i assume is a switch line and neutral?) and a 3 core seeing as...
  15. P

    So confused by different courses to be an electrician!!!

    Hey guys and girls. this is my first post as I'm a newbie (yay), I wish to become an electrician doing electrics in peoples house businesses etc but searching on google has turned up so many things and so many courses but nothing is so straight forward as to what qualification I need exactly...
  16. U

    correct shower rating??

    ok, without visiting the premisies and without testing the actual voltage, what is the score with this specific shower. existing set-up 6mm T&E 40A mcb with rcd protection old shower was 8.7kw load / 9.5 kw supply voltage??? so instructions read! new shower, still in box instructions...
  17. S

    Confused about JIB card

    Hi Just a random question, I received my JIB installation electricians card in march 2008 and for some reason its says I have I.E.E Wiring Regulations 17th edition in the qualifications bit............ I finished my college exams and Am2 about 6 months before this? Am I supposed to have...
  18. A

    Parallel feeder cable Question

    Hello All. Not been on here for a while, hoping you guys can help me with this one. We installed 185mm single copper core aluminium armoureds (2*185mm per line conductor each run 170m) to an MCC feeder. The intend was to use the aluminium armourings as the main CPC. My question is, how can i...
  19. I

    Electromagnetic induction

    In what ways can the effects of Electromagnetic induction be harnessed? :confused::confused::confused::confused::confused:
  20. C

    old wylex board

    :confused:I am trying to complete an installation form but am unable to find a out the Main Switch reference for the board in situ - it is a very old 4 way Wylex board. any clues???:confused:

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