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Wierd one....

tonydon
Hi everyone. 


So,  today we installed 6 new led panels in a new ceiling grid

The panels ar Ansell panels.  They are class 2. Low volt.


Then , our plumber says he has had a shock when touching the ceiling grid and a boiler at the same time.


So, we tested the ceiling grid to a local earth.   120V AC  or   -2.9V DC......   The grid  even lights a volt stick....


After trying several ideas I eventually swapped the live and neutral connections on the primary of the led drivers.......


The result..... no measurable voltage  between the grid and earth.......


The driver and the led panel are both marked class 2 ......


How is this possible??


Is it safe?


Do I need to bond the ceiling grid?
Parents
  • 0
    Higher frequencys should be less dangerouse because of skin effect 50 cycle currents will easily get into a person  to do there damage whereas 50 Kcs will travel over the skin maybe only going in to skin depth so not able to get to the heart
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  • 0
    Higher frequencys should be less dangerouse because of skin effect 50 cycle currents will easily get into a person  to do there damage whereas 50 Kcs will travel over the skin maybe only going in to skin depth so not able to get to the heart
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