To get any sort of valid comparison there would need to be some accurate way of determing what proportion of those domestic electrocutions in each country were down to work done by those trading as electricians, which might be quite difficult.
Sponsored Links
True - but, quite honestly, what probably makes these discussions even more moot is the fact that I doubt that many (of the tiny number of) domestic electrocutions in the UK (and probably other countries) are "down to" a person who worked on the electrical installation at all. If anyone is 'to blame', it's probably most likely to be the person who gets electrocuted.
Kind Regards, John
Interesting that they mentioned 19 strand cable. The stiffness of the more common 7 strand cable makes it (IMO) put a lot of mechanical strain on the connections, and the mounting of the main switch - of more concern where the DIN rail is plastic and so the live bar ends up providing some of the mechanical support for the main switch !
Hager have it covered
Sponsored Links
Indeed, I would love to use the 25mm² insulated and sheathed tri rated cable we use for telecoms DC supplies. Not sure if it's permitted for meter tails use, but with ferrules on each end would remove the strain from the terminals. Not to mention being much easier to install.
That looks much flimsier than the earlier clamp with 2 screws.
Completely irrelevant.
"Registration" may or may not be a good idea, or necessary, but what is necessary is a system which prevents people from trading as electricians (or plumbers or carpenters or roofers or builders or gardeners or mechanics or... or.... or...) unless they are properly qualified.
So long as "properly qualified" doesn't mean somebody who has been on a 5-day course to get some worthless "domestic installer" certificate or whatever it's called but still barely even understands Ohm's Law.
Well, yes, but the problem obviously is that, at present, there is no 'requirement' (legislated or otherwise) for someone to be 'properly qualified' in order to trade as 'an electrician', nor any definition of what 'properly qualified' would mean in that context. In practice, were such a requirement to become mandatory, the most obvious way to implement/administer/police/enforce it would be to have some sort of system of registration/licensing - just as with taxi drivers, pub landlords or whatever.
Kind Regards, John
I'm far from convinced that they teach Ohm's Law at all on such 5-day courses!
Kind Regards, John
I don't think there are any specific regs for meter tails (cue someone stating otherwise
) beyond being suitable for the job and sheathed (ie not just single insulation). Do you have any reference/code for it and then perhaps someone could look it up ?I've just been working with some Elandflex cable at work and thinking much the same thing ...
Provided the installer is able and prepared to terminate the ends in ferrules using the correct tool then Tri-rated would be a far better option. But if not crimped correctly it could pose a risk of cut strands and loose connections.
The neutral tails in RCBOs are multi-strand flexible cable with their ends pre-formed ( welded ) into a solid block. The reason given for not cutting them short ( in order to tidy up the CU ) is the concern that the cut ends would not be crimped before being fitted into the neutral bar.
'ohms is where electricians live
There would clearly have to be work done to establish what constituted "properly qualified", and legislation put in place.
Quite possibly.
There would need to be different levels of qualification.
Lowest would be the qualification to install cables and wire accessories in compliance with regulations.
Highest would be the qualification and experience to be able to fault find on existing installations.
( that is not meant to be derogatory to installers whose skill set is important and of value but is very different to that necessary for fault finding )
Lowest would be the qualification to install cables and wire accessories in compliance with regulations.
Highest would be the qualification and experience to be able to fault find on existing installations.
( that is not meant to be derogatory to installers whose skill set is important and of value but is very different to that necessary for fault finding )
As soon as you do that you have created the environment where old Mrs Smith gets a former in to replace a broken light switch , after doing so he finds that it still doesn't work, and then what...?
Together with regulators, examiners, enforcement procedures, guidance, and all the associated bureaucracy. Do we really need all that, given the tiny number of serious electrical accidents in domestic premises that can be attributed to poor workmanship?
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
Sponsored Links
