however

  1. A

    Two 32amp outlets on one circuit

    Anybody got any thoughts on this; I've been asked to install a new 16 amp 4 pin 415v industrial socket in a workshop to supply a lathe.....seams like an easy request, however there isnt a single distribution board in the building with a spare single phase, let alone a three phase way left on it...
  2. D

    Earthing and voltage issues

    Hi all Having a strange problem with some testing . Did an installation for somebody and upon testing discovered high Ze . ( 640 ohm ) Not happy with result ( after testing all other earthing conductors to infinite ohm or higher than 640, bonding no doubt), i discovered the earthing...
  3. L

    Use of cpc as a live conductor - EICR Coding

    Fella's I'm just writing up an EICR from last month, one of the findings was a lighting circuit on the non RCD side of the board where the cpc was used as a strapper in 2 way light switching, Ive marked it as C2 for two reasons, one being that there is no longer a cpc in the cable and also that...
  4. S

    6.4kw hob circuit

    Customer has himself fitted a new hob of 6.4kw in place of previous gas hob with electric ring x 1 ? Under the hob there was x 2 sfcu both on there own circuits and both run in 1 x 2.5mm t/e. He has connected his hob to one of the sfcu fused at 13a and on a 16a MCB at the board. Using...
  5. L

    Help, Lighting Circuit

    My client has asked for her kitchen lights to be re-wired, im an apprentice which has been made redundant so have my own minimal basic work coming in, however i assume i will have to rewire the whole circuit back to the CU, maybe leaving the drops in for the switches?! My concern is going to be...
  6. D

    Insulation Resistance Testing Problems

    Been to a Job this morning problems with RCD tripping, Global IR came back 0.016, Split circuits down and lighting tested (Including outside tested 0.018) however tested again 0.567 and then 1.03 each time the figure increases until it sits about 1.14. Testing done L&N - cpc and then N-Cpc...
  7. A

    Fluke 111 Multimeter

    Hi folks wonder if you can shed some advice too a newbie. Just started out on apprenticeship, getting tools bit by bit. Just acquired a Fluke 111 multimeter, discontinued now, but setting me up I'm not complaining! Really chuffed. Anyways, should this be calibrated regularly? Readings seem ok...
  8. W

    Cooker Hood installation

    Hi, I have just purchased a Matrix MEH601 Cooker Hood, I bought it for the purpose of recirculation not ducting. There is already a plug socket for an extractor fan on the wall so the basic electrics are already in place, however I need to replace the current plug socket with a Double Pole...
  9. S

    Eicr

    Hi Chaps What quals does one need to be able to do EICRs? Thanks
  10. D

    wiring up a small single 35watts light from the light switch

    Hello Guys, is there an acceptable safe way to add and wire in a small 35wat light from an existing light switch. I was thinking to put the light in series but however if I do that, wont that light be taking all the amps that are passing through the light switch. at the moment that switch only...
  11. F

    EPC Commercial

    I'm just completing a quote for a roof from 50kwp to 200Kwp options however this is an old unit which is going to be refitted. Therefore I have assumed EPC of D, however wondered if there are any short cuts eg. have a partitioned office with heating controls in with the rest of the unit without...
  12. G

    Help Wiring Honeywell Rf2 Pk3 Controls To Existing System Boiler

    Hi guys & gals, Wonder if anyone can help with my problem Fitted a new honeywell RF2 pack 3 Heating controller with wireless room stat & cylinder stat for my neighbour a few days ago, which replaced a honeywell ST699B programmer. The boiler is a Ideal Mexico Super 2 RS50 which i believe is...
  13. S

    Garage Power fed via SWA from the back of a 13amp double socket to a DB int he Garage

    I'm hoping some of you guys out there on the forum can perhaps provide the benefit of your experience with the below issue:- Currently working on a job where the garage which is approximately 25 - 30 feet away and adjacent to the house, has its power fed to it via SWA connected off the back of...
  14. S

    2 way and intermediate switching

    Hi all just a quick one, can you have 2 dimmers one at each end on a 2 way and intermediate lighting circuit? Or can you only have one dimmer (2 way) an intermediate switch and a standard 2 way switch? Thanks chris
  15. S

    Really I am 'now required to register on a competent persons scheme' ??

    check this link out Electrical Installation - Burnley College Adult Courses Didn't realise that I had to register LOL
  16. H

    1% AC volt drop

    Hi Guys, I haven't been on here for a while and was just wondering how most people are interpreting the DTI guide 1% voltage drop recommendation nowadays? Is the only way to be 100% sure that inverters will not ever drop out to design to 1%? And when meeting 1% requires enormous cable sizes...
  17. D

    Inverter connnected to garage CU - testing

    Hi, I am doing an install where the inverter is connected to a cable feeding an existing garage CU - we have split the cable and fitted a 2 way CU for the inverter only. Cabling is 6mm which is fine for the inverter supply, however I suspect it may be on the small side for the number of garage...
  18. R

    Supplier's fuse, disconnection time and max Ze

    Have a job where Ze is 0.36 ohms on a TNC-S with 80A BS1361 suppliers fuse. The general rule, as per OSG (page 11), is if Ze is below 0.35 ohms then this is acceptable, but that relates to a 100A fuse (OSG fig 2.1 on page 15 refers). Now I believe that this installation should comply, so have...
  19. D

    DNO or NOT for a 4kw system

    Guys - I am sure this has been answered but I am not clear. I have been advised by two installers that if I have a 4kw system ie 16x250w panels I don't need a DNO providing the inverter is not capable of or is limited to 3.5kw as can be done on the SunnyBoy. He said he installs all systems...
  20. R

    Help on AM2 Papers

    Hi guys, i passed my am2 in september 2009, and with the current state of work, ive put off putting my papers in and getting my electricians card. basically i passed at a bad time which the company i work for was laying people off, and tbh were still really quiet so just havnt put them in. now...

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