Apparently Green Hornet shows a TT in his avatar but seldom backs ups Steptoes posts, this really does confuse me. Maybe the next time he logs on he can enlighten me.I must say though, that I do like Rods, at least there are limited variables with the installation of them, providing you know what you are doing.
Then there is the American idea of 10mA RCD protection, and our own 5mA RCd protection in some school laboratories
However I think I would fail if placed on the spot to answer any general questions.
Can we cheat? and look up the recent forum posts for inspiration? Download section is full of very useful learning tools.