I thought if was frowned upon to have 2 phases in the same room in a domestic situation let alone at the same socket outlet.
Yep so did I, but can't find anything in the regs to say not allowed.
If one could find a double socket with separate connections for each outlet (would probably have to use a 'modular' approach), what UK regulation would prevent one having the two fed from different phases? (quite apart from the fact that regulations do not define what is 'allowed' in the UK).
The LAP grid system would allow two sockets in the same double socket arrangement to have different phases.
Well speaking from the experience of living in an ex-USA air base house in the UK the USA spec sockets were powered via a 55-0-55V 20A transformer. When we moved in there was just 4 single UK 13A sockets (fridge, washing machine, dishwasher points in the kitchen; 1 in the heater plant 'room'). Rest of the house had 240V outlets using FCU's - 2 in the lounge, 1 on landing, 1 in main bedroom by the nursery door. Quite a job changing the FCU's for 13A doubles.
USA outlets - there was 5 doubles in the lounge, 3 in the kitchen over the worktop, 2 in each bedroom, 1 double in the bathroom.
Any appliance rated over 1KW was permanently connected on 240v. Had similar in the Condo I lived and worked in Colorado Springs.
If I built myself a house I'd wire it as per the USA spec, just seems to be so much safer; especially with young children around.
Interesting did wonder how they did it, I know the USA drills etc can over heat with 50 Hz instead of 60 Hz, over the years had a lot of problems with imported USA equipment, specially when used on building sites, as they have twice the voltage to earth to what we use. Also some of there systems have delta wound transformers with one delta winding centre tapped and bonded to earth so actually 135 volt to earth, OK better than 230 volt but a lot worse than the 64 volt allowed on UK building site.
I have looked at using site equipment in the home, however the problem is a 12 amp trip on incoming supply to a 110 volt site transformer can deliver 50 amp to earth, and in the main we have no earth leakage protection on 110 volt site supplies, so actually there can be more not less danger when using 110 volt site supplies.
USA equipment has far thicker cables than used in standard UK stuff, and like the French and German sockets the earth does not have to be provided with all socket outlets, however unlike the French and German a plug with an earth pin can't be plugged into a socket with no earth connection, and like French and English any equipment needing an earth is polarised, it is only the Germans who used non polarised sockets.
However our type AC RCD is not allowed in most of Europe and they did start using RCD's before us, so a German socket protected with a type AC RCD would not be allowed in Germany we are told? But how can be be sure? Even if we had a copy of their regulations most of us could not read them.
So even if theory it says any EU regulations, we really don't have the option as can't read them.
This sign in Welsh I am told says
"bladder disease has returned" OK we can laugh, but trying to translate is not as easy as it seems. And this sign was between between Cardiff and Penarth where one would have thought they would have known.
In Welsh and French there is a word that both means how are you, and I am well, depending where used, there is no direct translation into English so there are bound to be errors in translation. We have argued about what this means.
514.4.2 Protective conductor
The bi-colour combination green-and-yellow shall be used exclusively for identification of a protective conductor and this combination shall not be used for any, other purpose.
Single-core cables that are Coloured green-and-yellow throughout their length shall only be used as a protective conductor and shall not be over-marked at their terminations, except as permitted by Regulation 514.4.3.
In this combination one of the colours shall cover at least 30 % and at most 70 % of the surface being coloured, while the other colour shall cover the remainder of the surface.
A bare conductor or busbar used as a protective conductor shall be identified. where necessary, by equal green-and yellow stripes, each not less than 15 mm and not more than 100 mm wide, close together, either throughout the length of the conductor or in each compartment and unit and at each accessible position. If adhesive tape is used, it shall be bi-coloured.
How could anyone translate that to another language when we are not even sure what it means in English? It is stated as it says "single-core" then if not single core it can be over-marked, however there is a full stop at end of purpose, so green-and-yellow can't be used etc. Not wanting to debate if green-and-yellow can be used, but pointing out how hard it would be to translate.