Just a slight re-traction here guys.
Look, I think I may have come over too strong in my posts above.
I'm all for Megger testing and as PaulUK said it is still in our regulations.
However, to call another countries training lacking is beside the point.
I view the Megger as just another tool in our arsenal, to give the customer (and ourselves) peace of mind, not only during the building process, but afterwards as well.
You don't have to spend Mega-bucks to get a good Megohm-meter, although the marketing branch of the larger Test Equipment companies will tell you different.
All a Megohm-meter has to do is send a DC voltage of twice the working voltage of the wires (ie: 120V= 250V, 240V=500V)down the circuit under test.
What's more, the current is so low, there is no way that anything could be damaged.
It isn't a Hi-Pot test, therefore it isn't destructive, I've worked with Hi-Pot tests as a Line Mechanic and they are only used on MV and HV cables, before they are connected to anything.
Comparing a Megger test with a Hi-Pot test is like comparing Oranges with Bananas.
Also,
I just go with what I've been taught, if I can pass that on, so be it.