Normal earth used to be via an 'earth spike' hammered in the ground - I still have one in use.
I'm not sure if I'm connected via a PME earth now or not though?, as an inspector said the wire to the spike was too thin (under new regulations), and as it's part buried under concrete I wasn't going to change it
So for the retest (which I had to pay for!) I asked to have a PME earth connection provided - but I've no idea if they did it, and I don't 'think' they charged me for me? - but anyway, they passed the job they were testing.
Ah, to ground or not to ground, that is the question. Well King Oslo it is your Kingdom to decide.
Since I am sitting here in Cleveland, Ohio USA I certainly can'y comment on Norwegian power or building codes as to what would or would not be a good or wise investment. I would suggest someone a little more local and familiar with your power distribution.
I wouldn't expect any - even with no precautions at all - LED's aren't particularly static sensitive.
But even for devices that are static sensitive, it's not failures in production that are the problem, it's damage caused which can greatly reduce their life expectancy.
I wouldn't expect any - even with no precautions at all - LED's aren't particularly static sensitive.
But even for devices that are static sensitive, it's not failures in production that are the problem, it's damage caused which can greatly reduce their life expectancy.
Herewith spec. sheet for Nichia white LED's. Nichia invented the White LED. White LED's are static sensitive. Please see documentation: Page 5 is good.
Herewith spec. sheet for Nichia white LED's. Nichia invented the White LED. White LED's are static sensitive. Please see documentation: Page 5 is good.