Wire Number Direction - Is there a standard?
Wire Number Direction - Is there a standard?
(OP)
Anyone know if there is a European standard that dictates the direction that a wire identification number should read? ie toward or away from the terminal its connecting to?
I've always applied the numbers so that they read AWAY from the terminal, now I'm hearing that a european standard dictates otherwise, but I can't find out which one it is.
Anyone have any experience or input on this would be grateful.
I've always applied the numbers so that they read AWAY from the terminal, now I'm hearing that a european standard dictates otherwise, but I can't find out which one it is.
Anyone have any experience or input on this would be grateful.





RE: Wire Number Direction - Is there a standard?
I don't know if it's some standard.
From my expirience with many types of cubicles:
direction is as you read books, from left to right or
from bootom to top.
Only my opinion.
Regards.
Slava
RE: Wire Number Direction - Is there a standard?
Gunnar Englund
www.gke.org
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100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: Wire Number Direction - Is there a standard?
From time to time, yes...
Only in case if my DIN rail with terminals is horisontal and numbering of terminals from left in right direction.
BTW, intresting situation, what we can do in case of Arabic or Chienise or Japanise cubicles
Slava
RE: Wire Number Direction - Is there a standard?
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If we learn from our mistakes I'm getting a great education!
RE: Wire Number Direction - Is there a standard?
RE: Wire Number Direction - Is there a standard?
Luck is a difficult thing to verify and therefore should be tested often. - Me
RE: Wire Number Direction - Is there a standard?
Bill
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"Why not the best?"
Jimmy Carter
RE: Wire Number Direction - Is there a standard?
I think it's some misunderstanding between us, sorry, becouse my bad explaination
label --->: 123-xxx(terminal)-123 (label)--->
vertical DIN rail. from left to right, or toward from left side--away from right side.
turn now this terminals on 90deg and DIN rail now is horisontal,
from bottom to top, or same toward to terminal--away from terminal:
3
2
1
xxx terminals
3
2
1
I hope that Im more clear now
Best Regards.
Slava
RE: Wire Number Direction - Is there a standard?
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RE: Wire Number Direction - Is there a standard?
Also, numbers might not just be applied inside panels, but on machine mounted parts too. When I worked in the tobacco industry, there was a lot of dust around (even inside cabinets when the doors were left open) also the numbered rings werent as good then, and the numbers eventually disappeared but the colours were visible, then there is no 'upside down' , you need a rule or rules to tell you which way to read.
RE: Wire Number Direction - Is there a standard?
Matt
RE: Wire Number Direction - Is there a standard?
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If we learn from our mistakes I'm getting a great education!
RE: Wire Number Direction - Is there a standard?
RE: Wire Number Direction - Is there a standard?
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If we learn from our mistakes I'm getting a great education!
RE: Wire Number Direction - Is there a standard?
If you get past 8 letters for a wire number it gets unreadable.
using common sense I would never put a wire number upside down based on spec. think of the end user having to turn his head upside down based on this spec.
RE: Wire Number Direction - Is there a standard?
Regarding long idents, any design engineer who uses more than 8 characters really needs to re-think his design unless it is a staggeringly huge panel. Numbers to identify cores are fine - lengthy text descriptions aren't necessary. Long idents can add to the build cost too if the panel spec forbids the use of printed labels, which many do because printed labels fade over time.
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If we learn from our mistakes I'm getting a great education!
RE: Wire Number Direction - Is there a standard?
If I was checking out a panel at a panel shop and they turned the terminal wire numbers upside down, I would tell them to renumber them all. I would not accept a panel for that reason.