On 11/11/2017 13:49, Steve Walker wrote:
On 11/11/2017 12:31, Robin wrote:
On 11/11/2017 11:46, charles wrote:
In article ,
Â*Â*Â* Bob Minchin wrote:
Steve Walker wrote:
On 10/11/2017 14:39, Brian Gaff wrote:
Grey, really?
Â*Â* Brian

Yes, Grey. A compromise, as the original harmonization suggestion
was to
have three phase wired using three black cores!

SteveW


Yes, an absolutely mad decision making it impossible to have any
illuminated indicators in the phase colours

how about 1, 2 & 3?

I thought colours ought not to be relied upon anyway - unless users
all airline pilots, train drivers or others known not to be colour-blind

An electrician who is colour blind will presumably know it and use other
methods for identification, for the rest following a colour in and out
of junction boxes, isolators, etc. is the normal way.



yes but I had in mind not cable but the "illuminated indicators"

In passing I'm not sure how many colour-blind electricians are trained
these days. The JIB used to require a medical certificate to show
"absence of colour blindness in order to carry out the role to the
degree necessary to ensure no impediment to safe working and in
accordance with disability discrimination law" which left me not much
wiser. Employers are under a duty to assess the risks of any employee
who works with colour coded stuff. I don't know about insurance for
self-employed sparks.


--
Robin
reply-to address is (intended to be) valid