This discussion is locked.
You cannot post a reply to this discussion. If you have a question start a new discussion

Wierd one....

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
  • Many thanks for the replies....


    This is really weird.

    If I connect one panel in the grid I get 20v

    if i connect 2 i get 38v

    Etc Etc it keeps going up.....


    even weirder...


    If I change the mutimeter range to dc volts

    I get -2.8v but when I swap the probes over I still get -2.8v


    I think I will have to get the manufacturers to visit so that I can show them the fault and get their advise......

Reply
  • Many thanks for the replies....


    This is really weird.

    If I connect one panel in the grid I get 20v

    if i connect 2 i get 38v

    Etc Etc it keeps going up.....


    even weirder...


    If I change the mutimeter range to dc volts

    I get -2.8v but when I swap the probes over I still get -2.8v


    I think I will have to get the manufacturers to visit so that I can show them the fault and get their advise......

Children
No Data