It's really very easy. Earth is, um, brown because that's the colour of earth, and the live is right and that must be the yellow and green because that's a lively colour. And that just leaves blue on the left, like the democrats... Hmm do you have a link to that video?
Tell that to old colour-blind electricians. Oh wait, you can't because they kept getting electrocuted.
I can'[t remember when I last had to change a fuse. I bought some spares when I moved in here 25 years ago and have used 2 each of 3amp and 13 amp.
I think the fact that the fuse box has much-more-sensitive breakers fitted these days is probably why the fuses in the plugs don't go. I've have to go an reset a fuseboard breaker probably once a year, and I'm not aware of my parents ever having had to replace fuse wire
I wouldn't know what to tell them, judging by threads on IET forums people who work in that field can't agree if the move to harmonise colour schemes made things better or worse. Data cabling seems to be more of a concern.Tell that to old colour-blind electricians. Oh wait, you can't because they kept getting electrocuted.
I routinely swap cheap looking moulded plugs with MK Safetyplugs.
Tell that to old colour-blind electricians. Oh wait, you can't because they kept getting electrocuted.
I always thought that the harmonised colours chosen might have worked better as:
Gas, Electric or plumbing beyond most basic tasks are left to professionals. Demolitions I am your man
I was taught that brown/blue was chosen because that combination was best based on what red-green colour blind people already saw with red/black wires.
I’m sure that’s why they did it that way for portable appliance leads, and a lot of stuff and plugs would have had existing earth terminals colour coded green As ever you have to cover the transition. Indeed the standard wording on instructions for recently bought appliances still reads as though you might want to connect a red/black/green coded plug...
Similarly I recently upgraded some wiring for my grandparents, including installing a junction box in place of some crimp connectors...
Using the correct tool often makes the job so much easier; for example, if you've always done electrical work using a Stanley knife, when you discover the existence of mechanical wire strippers it's like Christmas come early!
Gas, Electric or plumbing beyond most basic tasks are left to professionals. Demolitions I am your man
Were you provided with any evidence to back up what you were taught?
studylib.net
True, and why were those colours used in continental Europe? It's commonly stated that those colours were chosen because of colour blind people.
a sledge hammer doesn't need much technology to operateDemolitions? So you mean... find something that's electric and very powerful... wire it up, making sure to get confused by which one is the red/brown/whatever and which is the green, plug it in, and stand well back...
It is not that long ago that the colours for fixed wiring changed. The original change from red-black-green to brown-blue-green/yellow for flex was done for the benefit of the amateur colour blind who might wire domestic plugs. It was not considered necessary to change fixed wiring colours because that was generally done by professionals who tended not to become electricians if they were colour blind. Mind you, my father was an electrical technician who was red-green blind, just like I had a gas fitter who said he had no sense of smell.
I understood the difference was deliberate to distinguish cable designed for flex from cable designed to be fixed. They are subject to different standards. But the change to "harmonise" the colours was at about the same time as it became illegal for non-approved people to do certain work on fixed wiring, and that such work had to be formally recorded. So if work is found using the new colours that has not been recorded, someone (the house owner perhaps) can be prosecuted. Wiring with the old colours "gets away with it" as it is assumed to pre-date that law.
Actually, the earth lead is the one that is most dangerous to get wrong, eg if you are wiring a plug. Think about it.
And the European standard evolved having regard to the colour blindness issue, as was said.
If you mix a couple of those together you're quite likely to have a very speedy demolitionGas, Electric or plumbing beyond most basic tasks are left to professionals. Demolitions I am your man
Brown is for the colour of your underwear after you’ve touched the live
