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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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  • 0
    AJJewsbury:
    Seems a bit odd that there are so many companies selling 230V yellow warning labels if BS7671 does not require them to be installed

    The wiring regs used to require them (at least 415V ones where over 250V was present between phases) but the requirement was gradually watered down over the years (including one period where the wording wasn't at all clear) so a lot of people felt more comfortable continuing label things in the same way as they were originally taught (and of course wholesalers don't discontinue things if they still sell).

       - Andy.


    An organisation's electrical maintenance / operational safety procedures may require the labels as a warning for their maintenance electricians - there is certainly nothing to prevent this approach in the standards.


Reply
  • 0
    AJJewsbury:
    Seems a bit odd that there are so many companies selling 230V yellow warning labels if BS7671 does not require them to be installed

    The wiring regs used to require them (at least 415V ones where over 250V was present between phases) but the requirement was gradually watered down over the years (including one period where the wording wasn't at all clear) so a lot of people felt more comfortable continuing label things in the same way as they were originally taught (and of course wholesalers don't discontinue things if they still sell).

       - Andy.


    An organisation's electrical maintenance / operational safety procedures may require the labels as a warning for their maintenance electricians - there is certainly nothing to prevent this approach in the standards.


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