marcoaar
Member
hello kevin k,
can you send me a copy off this european standard,
thank you.
marco.
can you send me a copy off this european standard,
thank you.
marco.
There is a "standard" in industry:PeterW said:I wish someone would come out with a standard, if you want bizzare try my current place.
dale1627 said:I relate it to that if you see a red light, do not enter. If you see a green light, go ahead.
Dale
Way back then, it was no problem at all. We used illuminated pushbuttons. The red unlit button was pushed to start a motor (or to "make it dangerous and unsafe"). Once started, the red light turned on, the universal sign indicating "danger" since the first fire alarm was made. To stop, press the green unlit button to "make it safe again". Once stopped, the green light came on. Simple, and it was according to the NEMA standard of the time.However, it doesn't make a lot of sense to me to use the red=running and green=safe approach due to the prevelance of green start PB's and red stop PB's.