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.
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.