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confused

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  1. Mark42

    Sizing DC cables, PV Array to Inverter. Confused. Help please!

    My brain is overheating trying to make sense of PV panel parameters and calculate the CSA of a DC feed cable to the inverter. For my 16 HL Solar 250W panels, the spec is: Imp 4.94A Vmp 50.6V Isc 5.35A Voc 60.5V Two strings of eight panels in parallel. Therefore: Total current at max power =...
  2. D

    Confused on electrical education!?

    Hello Everyone, I am new in this forum, and I would love to get advice from someone here. I've started a OLCI course, and now I am a bit confused about all qualifications and how it all works, because I am from Lithuania, I don’t know how it all works in England... can someone help me...
  3. M

    Think I must be confused!

    An underground tt supply going into a meter cabinet on the outside of a garage, 16mm tails straight through the wall to henley blocks, 10mm earthing conductor to a rod with a Ze of 38ohms. From henley blocks a small gagage sub main with a 63A 100ma T rcd, main house feed from henley blocks (in...
  4. M

    Help, im confused about what qualifications i need in what order

    Help !! I was recently made redundant and want a new direction and career and have decided i want to "try" being an electrician. I have looked at "domestic electrician" courses as i want to really concentrate in this type of area but im seriously sceptical..i mean come on...qualified sparky in...
  5. L

    Confused, can anyone shed some light?

    Hey, been to look at a job this evening its not your standard S, Y or Combi system. The plumbers gone in and only changed the boiler but disconnected all the cables to it. Scenario: Boiler, with pump above it, basic programmer (HW ON, CH ON) Then in the airing cupboard theirs one 2port valve...
  6. P

    Solarmax Efficiency figures...confused

    ...basically, I note the datasheet has Max Efficiency Figures and European Efficiency figures. Can anyone explain the difference? Thanks Newb
  7. Rockingit

    Getting confused with a Zs / time - regs in contradiction??

    Ok, I'm trying to work out whether or not I can put a C50 protected final circuit onto an SNE supply which already has a Ze of .67 Section 411 Table 41.3 (new book) gives me a max value of Zs as .46, so we need to use an RCD...right?? 411.4.9 goes on to say that you can do that for a non time...
  8. richardg

    Confused green electrical wanabee

    Hi all I have spent many months ghosting the site looking at ways of improving my chances of becoming a competent electrician. I'm a mature student on the c&g 2330 level 3 with a G.S.O.H (looking for Pettitt female with a big nose) sorry off track!! To streamline my career options it looks like...
  9. richardg

    Confused green electrician in the making

    WOW I have been reading all your amazing posts and I'm still confused. Working through my third year of city&guilds 2330 level 3 as a mature GSOH with a big heart and loving the course.(looking for blond young sexy female) sorry side tracked there!! For me to become a fully qualified domestic...
  10. D

    Little confused about Earthing - Some advice Please

    Hi Guys Go easy, I'm learning. Went to look at a little job today. In brief TNS, split 25mm tails. First CU is next to service head with 16mm Earth. 2nd CU is about 5m away in new extension with 16mm Earth. First CU is bonded to Gas with 6mm, and the 2nd CU is bonded to water with 10mm. I...
  11. O

    Confused..

    Might just be getting myself lost and confused but wanna know... If I've got 2 seperate rooms with 2 lights in each and I use the same supply to feed the 2 rooms (from DB to light 1 then light 2 in the first room, then from light 2 to light 3 and light 4 in the second room), and I want a switch...
  12. O

    Slightly confused apprentice

    Hello!! I'm currently a Panel wiring apprentice but want to become an electrician. I'm doing 2330 C&G at college, recently passing level 2. I'm confused as to what further units at level 2 + 3 I'll need to take to become an electrician. The other thing that's confusing me is that all my certs...
  13. A

    Confused- many questions on Panels N' Shading N' Inverters

    My place has a WSW aspect and am in the East of Scotland, just north of Edinburgh. So not ideally placed. However I am still game to have a system installed. I have had 5 quotes from different companies and the best comes in at about £11500 for a 15x Sharp MU250 which will give, according to my...
  14. S

    Confused.com

    hello one and all, new to the site and I am looking for some hel[p and advice, but first let me start with a long winded story. recently my company that i work for lost the long term contract which I was working on, and under the Tupe laws i was due to go over to the new company. However one of...
  15. X

    Please help! Confused about training courses.

    Hi, im new here and could really do with some help please. I have worked as an arcade machine technician and also have experience with domestic electrical installation both under the supervision of a qualified person. Unfortunately i am now unemployed but as i do not have any qualifications i...
  16. N

    Lighting Circuit - A bit confused

    Hello, I have just started doing electrical work on an extension (all notified to the council ect, also be signed off by them...) I'm trying to incorporate a 'loop in' lighting circuit and I am slightly confused at the moment (maybe I'm tired) on how to go about it. Please look at my wiring...
  17. N

    Totally confused

    I am a qualified electrician from Ireland.Due to the work situation over here(there is none) I am thinking of moving to the U.K for a bit. Whats confusing me from reading this forum is all the codes etc (part p).Could someone explain this to me please.I am almost 20 years in the business and...
  18. C

    Im confused with my qualifications???

    Right.... My training officer isnt what id describe as a clever bloke.... Infact it would be closer to the truth if id have said the opposite... Iv tried to have him explain what im gonna ask but im none the wiser lol. Ive done my 3 years at college, ive done my am2 and my portfoilio is just...
  19. E

    Confused here...Detached garages and earth rods...

    TN-S system. 20m run of 4.0mm SWA to ne CU in garage, supplying 3 lights and 4 sockets. RCD protected, lights on 6A breaker, sockets on 20A breaker. Does this need and earth rod and why? Why is the 3rd core of SWA not effiecient? I'm confused because reading some older posts people are...
  20. A

    what qualifications do i need to do work

    hi can you tell me do i need my 2391 test and inspection to start work if i am registerd with elecsa do not want to pay to join eleca if i need my 2391 first no space at training centre intill august:confused::confused::confused::confused::confused::confused::confused:

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