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  1. M

    Out of interest. effect of East/West split on one string?

    I wouldn't do it but a client asked about an east/west split on one string. I couldn't quite describe how bad the effect would be? Would the 8 on the east side(shaded eg.) drag the current down from the 8 on the west (sun shining on)? Or any other answers? Much appreciated
  2. O

    RCBO failure in an unbalanced split phase installation

    Hello all, this is my first post on any forum so please forgive any ineptitudes. I'm a relatively recently qualified electrician and have encountered a single phase /split phase 3 wire installation for the first time. This installation is fed through a three phase board containing mccb's...
  3. J

    Split Air Con Wiring Question

    Hi, Need some advice regarding running cable for - split air conditioning unit (Mitsubishi Heavy Industries Air Conditioning SRK40HG-S Wall Mounted, 3.6kW / 13200 Btu Heat pump Fixed speed Split Type) The pipe work has been installed but the client cant get hold of the installers and no...
  4. B

    east/west split and pvsol help!

    Trying to do an east/west split on my own house for mcs, i have pvsol, on the 3d shading programme i cant seem to find were you link the 2 arrays together so it will choose one inverter? so i tried to do it without 3d shading and no inverters came up.Im wanting to put 10x 250w on the east side...
  5. R

    Split Consumer unit tripping on lighting when switch 2 way light on

    I have just replaced a CU with split load and now the 2 way hall light trips the opposite RCD, existing PVC wiring. Bulbs removed. I suspect a Line-Line insulation problem. La-E > 299 M Lb-E > 299 M Na-E 17 M Nb-E 99 M Hall circuit is on RCDa, other lights on RCDb Na - Nb > 299 M La -...
  6. S

    17th edition Split board issues.

    Hi guys n gals, i've fitted another general electric 17th edition split board. It's the 3rd one i've fitted and the 3rd one that i've had problems with. Haven't changed many boards over, only ever done so for friends or family who've needed/wanted too, i still have my rewireble box taking care...
  7. P

    house cu rcd tripping when testing garage cu rcd altough on non rcd side of split boa

    Hi i have just finished wiring in a garage consumer unit. I have no sockets or lighting on the board yet i have only wired into the cu in the house. I have wired it using 3 core 6mm swa. I have earthed the wire armour through a gland into a mtal junction box and then run a seperate 6mm from the...
  8. prospark

    Split con cable for sub main?

    Hi folks, interested in opinions for the use of split concentric cable BS7870 for use as sub main to garage or loft conversion within a domestic property. Also were can i find a guide to current ratings as they dont appear in the regs tables or my basic cable calc many thanks steve
  9. A

    Fitting dual split/supply Crabtree CU for all circuits and eco7 .. two EIC's or one?

    Hello and good evening everyone. I am changing the consumer unit in the flat which I am renting for Napit to come and inspect to complete my registration. I am fitting a dual split/supply Crabtree CU with RCBO's for all circuits and a separate mains switch for eco7 also with RCBO's all...
  10. D

    West/South uneven split system

    I've recently had a 3.6 Kw system commissioned involving a 7 panel 230W string on a west facing roof and an adjacent 9 panel string with the same panel type on a south facing roof. The system has been installed with a Deihl 3800s inverter and the two strings have been connected from what I...
  11. C

    East west split

    Has anyone had any problems with east /f west/f systems? Went back to an install lastweek only generated 6.5kw in 5 days (4.0kw system)With pv1 3.6 not good! Customer going mental!
  12. D

    split a single string pv array in to 2 using a splitter

    I am a solar installer and i have been told that i can use a mc4 splitter to connect 1 string in to both connections on inverter as they had done this before to spread the load surly this can not be right. as a splitter is used for 2 strings going in to 1 not the other way around
  13. jibjob

    Split Load Board with 100ma RCD

    Hi Guys, During a visit to a rented property on behalf of a local agent it was noted that the RCD in the split load board was 100mA. The property is a 1st floor flat, PME and the protected circuits are cooker & sockets. It's a Proteus board with a beast of an RCD that swallows up 4 ways...
  14. B

    3kw split array with an aurora 3000 - is it working correctly ?

    I have just had installed a Aurora power one split invertor and have 6 250W Solarworld panels facing east, plus 6 facing west. How do I know if both sides are working correctly ? I have no manual on the Aurora but from the panel readout I assume that PIN 1 is for one set of panels and PIN 2 is...
  15. T

    Split main

    Question I have been called out to a job that has a number of 3 phase boards supplied by neutral blocks so there is no main switch to isolate all the boards does anybody know the regulation number to which this contravenes please any help would be great thanks
  16. S

    fault finding on ring splitting technique

    Hi all can anyone explain how to carry out fault finding on a ring main using the splitting the ring technique. Other than splitting a socket and testing each way do you have to do anything in the consumer unit, ie do you leave the wires in the circuit breakers and bus bars or do you split...
  17. D

    ring main fault

    hi my customer wants me to change her fuseboard for a 17th edition at her home.i went today to pretest the circuits and found that there was no neutral continuity on the kitchen ring and no earth continuity on the upstairs ring.My client has just had the whole house decorated and the decorators...
  18. M

    Global optitrac, on or off for east/west split??

    Hi, im after some advice on an east/west split with a 4000tl please. I would assume it wise to turn on the optitrac feature due to the consistant shading issues an e/w system on a pitched roof would have? Has anyone ever compared yields with it on/off? All advice most welcome as this will be my...
  19. D

    3kw split array with an aurora 3000 for 9400 is that reasonable?

    Im getting a system installed with what should be a split 3kw ( 12 suntech 250's) with what should be an aurora 3000 inverter. one half is south east the other is west. It includes scaffolding ect. Does this sound ok? and is there anything i need to be careful about for the install. Im not that...
  20. C

    dual aspect split array with sunny boy 3800v? located in the attic????

    We are having to rush a decision on which of two quotes to give the go ahead to - both who can fit us in for install by end of november. Unfortunately our preferred installer (most reputable) couldn't fit us in. The chap we've so far given our deposit to (with a 14 day cool -off available)...

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