Bruce B
I can safely say it is enough of a poke to make you flinch away from the contact point which could be dangerous if you are at height eg on a ladder, but as I stated I have'nt as yet measured the current as my clamp meter does'nt register milliamps
I posted that I've been testing the Tl arrays for some time now this was because on the first one I turned the system on and was checking what voltage if any there was between array and earth rod and accidently touched the rod and earth wire while the system was on, daft thing to let happen I know but there you go (curiosity killed the cat) , anyway without knowing the current level present it certainly made me jump.
Incidentally I've just finished our first console job today 4000TL sanyo 250's and next door the neighbour is having an identical system
the installer is new to the game 3rd job and asked why I had run a cpc between the panels and earthed via rod so I explained the reasons why and he did'nt seem convinced that it was necessary, I went there to commission this morning ,afterwards went over to have a chat with the other installer who was not there but his apprentice was working at the house , the first thing he said was that their system was turned off after he received a belt off the panels ,and that they were now going to earth and bond them together
This installer seemed to be competent but he has had some quite bad advice from his training provider and he said from the technical helpline of the MCS who both told him that a 90 metre run in 6mm swa would be ok for the current the system would produce and that there was no need to earth any array
With 5 <4kw systems nearby, 3 of which I've done myself , I've noticed the local voltage regularly over 250v I told him to expect the system to shutdown at some point and also a large difference between the meter and inverter totals