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Shocked Child. But How?

Waddayou reckon happened here then?

https://www.dailymail.co.uk/femail/article-7747715/Mother-shares-shock-warning-little-girl-burnt-iPhone-charger.html


Z.
Parents

  • Chris Pearson:




     




    Quite possibly, but an electrical burn depends upon current density. Old-fashioned single pole diathermy (surgeons for the use of) uses a pair of forceps or other pointy instrument at the cutting/sealing end and a large pad at the other.


    Similarly, whilst defibrillators may leave a red mark, they do not burn the skin.


     




    If you look at the size of the burn in the photo, and the adjacent scorch marks on the fingers/palm, it looks to me like this is the result of a flash effectively happenning 'inside' a closed hand placed over the an arcing contact.  The article says it was done on a power block, so potentially flat on the floor with the hand above.


    Still looks nasty by whatever mechnism.


    Jason.

Reply

  • Chris Pearson:




     




    Quite possibly, but an electrical burn depends upon current density. Old-fashioned single pole diathermy (surgeons for the use of) uses a pair of forceps or other pointy instrument at the cutting/sealing end and a large pad at the other.


    Similarly, whilst defibrillators may leave a red mark, they do not burn the skin.


     




    If you look at the size of the burn in the photo, and the adjacent scorch marks on the fingers/palm, it looks to me like this is the result of a flash effectively happenning 'inside' a closed hand placed over the an arcing contact.  The article says it was done on a power block, so potentially flat on the floor with the hand above.


    Still looks nasty by whatever mechnism.


    Jason.

Children
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