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Thanks everyone for your replies. To be honest, I don't have any specific issues - it's just that I haven't been exposed to much heating installations 'in the field', so to speak, and didn't cover much in theory during my training either, so a primer or Heating for Electricians 101 would...

Hi everyone - I've been on here a few times before and found replies helpful. I was wondering if anyone could recommend a good training course (3 days or so) for (inexperienced but 17th edition qualified) electricians to help me with a 'blind spot' in my knowledge around heating systems - in...

Great.  Thanks again, Murdoch.

Ok - The supply company DID supply an isolator switch, so I could work safely.  I  installed the tails from the isolator to the CCU and carried out all of the work downstream of the supply.  Except for one thing.  I don't know if this is a numpty question, so apologies in advance.  Now, the...

Got it. Thanks Murdoch - Got the CU, but naively thought the DNO would supply the isolator switch as they did to a previous existing supply I was working on. My mistake. Thank you. Think I'll refer the customer to a more experienced sparky. I'm content installing the CU, all the upstream...

Hi everyone - Thanks for your replies. So are you saying, Murdoch, others ... that I'll need to supply this or similar ..... http://www.tlc-direct.co.uk/Images/Products/size_3/CGMSF100.JPG And install it upstream to the CCU etc.... and downstream with the meter tails ready to be connected to...

Hello everyone - I've been on her before and got some useful replies to questions, so I hope you can help me again... I've passed my BS7671 and have done quite a few jobs, including upgrading a CU under supervision, but I'm lacking experience in a couple of areas. Here's my question - A...

Hello everyone - I'd just like to Thank once again, everyone who has contributed to this post, particularly in the past few days.  The problem as described (and shown by Apache) was EXACTLY the case in the Garage. Moving the incoming SWA neutral to the RCD Neutral in fixed the issue and the...

Got it.  Thanks Apache!

Thanks so much to everyone who took the time to reply to this thread!

Thanks again everyone - Like I say, I will provide photo(s) when I can... BUT ... from memory (and it's getting hazy).. The thicker blue cable from the RCD goes from (I think, could be wrong) the Left Hand Side of the RCD into the Neutral bar - This cable is 10mm or more, maybe 16mm?   And the...

Thanks to everyone for their replies. I'm back home on Tuesday after a short break away at the in-laws.  Just to be clear - By NewHomeOwner, I meant I'm new at owning a home, NOT that the home is new.  I'd say it was 1950's, perhaps - probably explains the wiring colours - all the sockets are IN...

I will post a picture up, but to date, other than connecting the temporary socket as a 'test' I haven't done anything.  That is to the Garage CCU.  MCB's and RCD were there, but no wiring out from the CCU, just the SWA IN to the CCU

Hello everyone - I hope someone can advise me. First up, I'm an enthusiastic DIYer, but I know my limits - What I describe below is a job for an experienced electrician, but I want to know whether there's something basic I'm missing before I call one out as they can be expensive and cash is...