E-Stops Have A Yellow Background, Right?
In my opinion, the intent behind this requirement is to unequivocally differentiate the e-stop button from other red devices in the area of the emergency stop device. Only when this requirement is complied with will the potential for hazardous mistakes be minimized. Several suppliers have developed solutions for this requirement that are relatively easy to apply in the field. But, the number one obstacle to compliance I’ve seen is awareness of the requirement. Hopefully this blog will help educate – and reduce hazards!
In response to: E-Stops Have A Yellow Background, Right?Rick T commented:
Thank you for sharing your considerable and relevant expertise on this forum.
I do have a question regarding functional marking of E-Stops.
I’ve been led to believe that having a yellow background only is sufficient for the E-stop switch(es). Is this true, or does a function label, by way of text, or symbol, have to be used along with the yellow background? The rational I heard for not using additional text or the international symbol is that the E-stop switch with its yellow background, is unique enough and easily recognizable internationally, i.e. identification is no problem anywhere.
Is this true and what is thought on the issue?