Hot Surface Warning
Hot Surface Warning
(OP)
Hi,
I would like to ask what is the threshold surface temperature of electrical devices from which the application of "HOT SURFACE" warning sticker is mandatory and which standard(s) could be applied ?
I would like to ask what is the threshold surface temperature of electrical devices from which the application of "HOT SURFACE" warning sticker is mandatory and which standard(s) could be applied ?






RE: Hot Surface Warning
It is likely defined in a standard applicable to wherever you are - without that information it's difficult to help.
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If we learn from our mistakes I'm getting a great education!
RE: Hot Surface Warning
Basically, I would like to know when is the usage of the following sign type mandatory : http://www
RE: Hot Surface Warning
As a general rule of thumb, we put the warning label on any equipment that may reach above above 60 degC. VFD heatsinks for instance.
Matt
RE: Hot Surface Warning
RE: Hot Surface Warning
Suggest you try NIMA website for details -National Insulation Manufacturers Association.
Also, temperatures over 80o Centigrade can cause 2nd degree burns (definition of arcflash protection boundary to limit burns to a curable 2nd degree burn, temp >80o)
Hope this helps
RE: Hot Surface Warning
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If we learn from our mistakes I'm getting a great education!
RE: Hot Surface Warning
I have found at the OSHA discussion http://www.eng-tips.com/viewthread.cfm?qid=79451 that the suggested limit should be around 140F ( 60 C ).