Not correct there as the vehicle charging point advertised contains a double pole RCBO no doubt at least Type A. Unlike an SRCD does not require upstream RCD protection.
So do the new SRCDs, one of the changes is that they will have Type A Double Pole RCD protection, instead of Type AC.
But as pointed out by the manufacturer that socket can be used for mowing the lawn rather than just charging a car, so it’s just a bog standard multipurpose outdoor socket.
So does it have to have an Type A DP RCD upfront of its circuit?
Jack, (our retiree) is not happy. It started when his twin rcd socket in his workshop was condemned by an EICR to the effect of = C2 potentially dangerous. Jack had bought and installed his socket around 3/4 years ago and as far as he was concerned it was from a reputable shop,and met the regulations at the time. It wasn't his place to wade through endless British Standards and guide books, and fitting was not rocket science. He got an electrician friend to confirm the trip time. All was well. Now every time the trip goes he has to take a brisk walk to the meter cupboard in the house. However, on the internet one evening he decided to do some digging. He found a piece in a publication "Wiring Matters" from 2015 that covered his type of trip sockets in detail. To his disbelief he found the paragraph, "there is no advantage to have two RCDs in series in his situation". Funny he thought, this was the header of Lisa Miles new topic from the new Wiring Matters, "new amendment to BS 7671" which says these devices now must have an upstream device as well. "These people don't know what they are talking" about he thought.
Jack has now reinstalled his SCRD in the workshop (and removed the RCD from the house)
Regards, UKPN
As you say, if you do sn internet search you can find articles in which the IET gave SRCD socket outlets as an example of how to provide RCD protection in various locations such as outbuildings.
Do not waste time learning 'dot' and 'dash' - they are the wrong length, and it is not what it sounds like, and you just have to learn it twice,
Of course there are also morse code converters such as www.unit-conversion.info/texttools/morse-code/, though I was confused that it told me the above was ZC until I realised I had missed out a couple of spaces. Alasdair
I have just been out into Wales for two days and stayed overnight in a hotel to do a couple of electrical jobs, one out in Pembrokeshire and another at Newport on the way back.
The one job was in an ex-Council house, you would assume that the electrical installation would just be dated having been installed to a good standard in the first place under the supervision of a Clerk of Works.
I needed to alter the lighting circuit and move and move it onto the RCD side of the consumer unit, when it was installed the electricians had run out of twin and earth, so for the circuit conductor and switch drops they used three core with the yellow core cut back, then wired the two way on the stairs in three core.
I needed to ensure that there is not a borrowed neutral on the landing light or elsewhere that would result in the RCD tripping, however just to make life interesting the guys who redecorated the hall, stairs and landing had replaced the two switches and the downstairs switch no longer worked; and both switches are two gang with everything wired in three core, with or without the yellow core being used.
So moving the upstairs lighting circuit MCB across the consumer unit onto the RCD side took a hour, as first I stripped the landing light switching and rewired it, then did some testing and checks to ensure all the lights work without the RCD tripping.
All done and sorted, but as I commented to my wife the trouble is I am trying to polish a - ..- .-. -.. which according to the old saying cannot be done.
It is very easy to say just add a RCD here instead of there, but the reality is some what different.
There are practical issues to contend with, such as having to complete repairs just to achieve the desired outcome, but given the general state of electrical installations in this country with do much shoddy installation work having been completed in the past and the state of many houses limiting access to the installation with so many hoarders or at the other end of the scale homeowners who don’t want their pristine homes dismantled, electricians are left at trying to polish a - ..- .-. -..
I know that you have to consider the state of the whole installation when you are making an alteration or addition, but if the existing installation was installed to an earlier edition of the Wiring Regulations you cannot always upgrade all the existing installation to the latest edition, you cannot completely rewire a house and replace the old fuse board to make one small addition or alteration, so you ensure the new work is compliant and there is not an issue with the existing installation that will make the addition unsafe. That is what you are signing for on the minor electrical works certificate.
A example of what I am trying to work around from another job I did a couple of weeks ago, that I have already put in another post.
I was not making any alterations or additions to the lighting circuit, it would have just been good practice to move it to a RCD protected fuse board next to the one it is in, but was not included in the contract and ended up staying where it is with the customer being advised in writing the there are issues with the existing installation that require improvements.
If you take your car to a garage to have the brakes repaired they may advise you that you need one or more new tyres on your car, but they won't replace them as part of the job of replacing the brakes. It's not work that has been contracted.
