Mushrooms come in all sorts of shape, so the description is not very
scientific. It's only a concern if the AHJ thinks it is!
Whether the English is acceptable is a matter for national legislation,
so there are probably several incompatible answers.
Best wishes
John Woodgate OOO-Own Opinions Only
J M Woodgate and Associates www.woodjohn.uk
Rayleigh, Essex UK
On 2019-04-24 17:43, Brian Kunde wrote:
I am constantly being asked three questions about E-Stops which I
cannot find the answers to.
1. "Mushroom Shape" is specifically called out in some standards but
the newer style e-stop switches are becoming less and less Mushroom
Shaped. If this a concern?
2. "Yellow Background" is getting smaller and smaller. Some small
e-stop switches has no yellow background but has a small area on the
shaft of the switch that is yellow. This is not technically the
"background". Is this acceptable or is a yellow background required
in addition? The size of the yellow area is not specified as far as I
have found.
3. English text "Emergency Stop" printed on the button or on the
yellow background ring: Is this a problem in non-english speaking
countries? Do I have to translate (like in French for France and
Canada) or are these words "globally acceptable"? I have been telling
our engineers to choose e-stop switches and yellow rings without text
but some manufacturers only provide it with the text.
Thanks to all.
The Other Brian
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