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Panel/Switchgear Yellow Electricity Warning Labels

Former Community Member
Former Community Member
Guys,


I am trying to find the specific standard that states what voltage value is to be placed on the yellow colored electricity warning labels found on panels/switchgear. As I understand it the electricity warning sign template is coming from ISO 7010. However having read ISO 7010 I can see it makes no reference to what voltage value should appear on the warning label.


Is it the nominal voltage, is it peak voltage, is it rated operational voltage ? 


What standard is specifying this ?


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    Though I'd have to say I do not like it - as for a long time we used to put  put 400V (or 415V or 440V depending who did it) on boxes with 3 phases where the phase to phase voltage was 400, so you could get similar labels on both cases, and possible confusion in an old building.

    I do prefer to see the star/delta voltages  so 230/400 or 400/690 or 690/1200 (this last not seen in the UK to my knowledge, only seen once in  a large German Factory myself, along with Achtung Hochspannung Lebensgefahr labels ) as it is less ambiguous, though I agree it is not what the modern standards request.

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  • 0
    Though I'd have to say I do not like it - as for a long time we used to put  put 400V (or 415V or 440V depending who did it) on boxes with 3 phases where the phase to phase voltage was 400, so you could get similar labels on both cases, and possible confusion in an old building.

    I do prefer to see the star/delta voltages  so 230/400 or 400/690 or 690/1200 (this last not seen in the UK to my knowledge, only seen once in  a large German Factory myself, along with Achtung Hochspannung Lebensgefahr labels ) as it is less ambiguous, though I agree it is not what the modern standards request.

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