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Thread ID: 48460 2004-08-23 21:35:00 Beware if you notice this Spacemannz (808) Press F1
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264776 2004-08-24 19:39:00 The reason is because color blind people can not tell the difference between red & black not sure is green fits in there somewhere .

Anyway color blind people have not problem with the updated color code and if you call a color blind electrician in to your house, you will live longer, that is the thoey anyway .

You could say brown is a faded version of red, (OK)
and blue is a colorized version of black? (what ?)




> wires I will never know because to me red, black and
> green were very logical whereas brown, blue an
> green/yellow are not .
Earnie Moore (5918)
264777 2004-08-24 19:49:00 The reason is because color blind people can not tell the difference between red & black, not sure if green fits in there somewhere .

Anyway color blind people have no problems with the updated color code and if you call a color blind electrician in to your house, you will live longer, that is the theory anyway .

You could say brown is a faded version of red, (OK)
and blue is a colonized version of black? (what ?)



-------- More --------
By the way taking about logic, some counties in Europe use White & Black for their color everyone here thinks black=negative, white=positive, but in fact it is black=negative & white=positive .






> wires I will never know because to me red, black and
> green were very logical whereas brown, blue an
> green/yellow are not .
Earnie Moore (5918)
264778 2004-08-24 20:29:00 Baldy, its one thing to know what you are doing its another trying to convince the insurance company :(. If you ever have a house fire and they find out it wasnt done by a certified electrician you can say bye bye to any pay out :(. But you can also do the wiring yourself and then get a certified electrician to "certify it". Budda (2736)
264779 2004-08-24 22:23:00 Ernie I thought it was brown, red and green that looked all the same colour to colour blind people. Look at those colours, with the same tone, in greyscale and get the idea. I laso understand that most colour blind people are not devoid of colour in their world but have trouble distinguising certain colours and the aforementioned in particular.

I have come across the old mix the phase/neutral trick a few times or the live conduit is a real doozy. It's always seems to be when the sparky is late and I've been to lazy to walk to the fuse/switch board or figure out which circuit to nix. You can get a crude lesson in how anodising and arc welding work if your lucky.

Cheers Murray P
Murray P (44)
264780 2004-08-24 22:36:00 Power doesn't actually "leak" into computers or appliances like that because of a faulty earth (or any other defect in the mains supply side), therefore it can't get really to your CPU, video card or any other part of the electronics. If by extraordinary circumstances and amazing coincidences it did (such as a piece of loose metal or bare wire inside linking the livened case directly to a cpu pin, the cpu would be stone dead, not just malfunctioning.

Power points don't fail suddenly either, so it has probably been like that for quite some time, probably many years. You didn't say what the fault was, but it is usually spread pins in the socket due to metal fatigue, or the earth wire not connected at all. It is quite common in older houses to find that the earth socket is making poor connection and if a house is more than 25-30 years old it is worth getting a check made on any regularly used outlets such as those in kitchens etc.

Cheers

Billy 8-{)
Billy T (70)
264781 2004-08-25 00:48:00 > Ernie I thought it was brown, red and green that
> looked all the same colour to colour blind people.
> Look at those colours, with the same tone, in
> greyscale and get the idea. I also understand that
> most colour blind people are not devoid of colour in
> their world but have trouble distinguising certain
> colours and the aforementioned in particular.

The problem is that the red perception is usually missing or limited in function. Probably due to reduced "cones" in the retina.
This leads to a lack of ability to correctly deduce colours with any red content.

Its actually described as red-greed colour blindness, and it affects about 12% of males but less than 1% of females. Its hereditary and passed on by the maternal line. Something else we men can thank the ladies for...

Its more complex than just the "grey scale" equivalent.

Perhaps you could borrow my eyes, you may understand?

Test your ability here:
www.toledo-bend.com

Regarding cable colours, shorly it will be illegal to use yellow as a mains cable color in NZ. This is to avoid confusion with Green/Yellow striped cable which is used for earth identification.
godfather (25)
264782 2004-08-25 01:58:00 Interesting to see the different varieties and the effect, 4 types, with 4 sub-types, including 2 rarer monchrome (greyscale like) I might add, with the commonest being the red/brown one. Took a few tests and checked out fine but can imagine by looking at the with - without examples (linked on from linked site) that visual input is quiet different for some and presents considerable challenges in a world devised by and large by and for the norm.

Cheers Murray P
Murray P (44)
264783 2004-08-25 04:30:00 Godfather, that's me down to a "T", Red on Green or Green on Red.

Traffic lights are no problem!! different shades I suppose.

Compulsory Military Training (CMT), I failed on this test but was asked if I would like to do the 14 weeks. Often wondered why!.

Turns out that colour blindness doesn't affect your quality of markmanship, brother and I were classed as top Marksmen, over 95% on all small arms and 6 pounder anti tank gun.

Have replaced a lot of plugs, but have always double checked the embedded letters in the plug.

So that's why the wire colours changed, learn something every day!.

Les 3.

Ps. wished we could sort out these computer problems the same way.

les 3
leshibbard (873)
264784 2004-08-25 04:52:00 > Traffic lights are no problem!! different shades I
> suppose.

Red is always on the top ... ?

> Turns out that colour blindness doesn't affect your
> quality of markmanship, brother and I were classed as
> top Marksmen, over 95% on all small arms and 6
> pounder anti tank gun.

I too had no problem getting a "possible" (100%) in both grouping and accuracy. Perhaps it improves the eyesight for that?

> Have replaced a lot of plugs, but have always double
> checked the embedded letters in the plug.

I have registration allowing me to do it, but perhaps the less said the better ...
Faded flex cores can be tricky. Meggers are useful. When you replace a plug on an extension flex, do both ends.
godfather (25)
264785 2004-08-25 07:11:00 Re colour-blindness and shooting.
My brother is colour-blind and does a lot of skeet shooting.
If the skeets are painted orange in colour, and fired off to a landscape where there is a range of green trees, my brother has difficulty in seeing the orange colour of the skeet in the green background of the trees, but is fine against the blue sky.

Also, apparantly colour blind people are very good in the war zone, as they can pick out camouflaged vehicles etc among the green vegetation while on aerial patrol.

regards Marg.
pulling hair out (4493)
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