A big problem in some countries is stupid officialdom. A classic example in the UK was the "Part P Domestic Wiring Regulations". In spite of the UK having an Institution Of Electrical Engineers the government chose to bypass them and railroad through their own agenda. This created the absolute farce that technicians and engineers who had heavy duty qualifications, apprenticeships and long industrial experience were debarred from doing "Mickey Mouse" domestic wiring. House wiring had been made into a building trade! Now when some people have routinely worked with 11,000 volt three phase equipment and have done a full apprenticeship its a bit much when some plonker of a politician dictates that they aren't qualified to wire up a house. Of course this probably got quite a lot of votes from the guys whose technical reading ends at the Sun page three. Admittedly quite a few people in the UK have been electrocuted but in a great many cases this has been due to some bozo driving a screw into the live conductor. As the stupid bozos typically use a double insulated power screwdriver (often with over-length screws) they are not the ones who get electrocuted. Unfortunately there are no government regulations for stupid bozos. Ground Fault Circuit Interupters also known as Earth Leakage Circuit Breakers will of course help and in some cirumstances they might prevent fires caused by gnawing rodents (there are still no government rules for rodents unfortunately not even the two legged ones) Anyhow IMHO fortunes are being made out of the qualifications fiascos by claiming that ones examinations and course numbers were not the right ones. They then want one to do yet more courses at vast expense! By the way one facet of my career involved Helium refrigerators that cooled things down to 7 or 8 degrees Kelvin and another aspect involved Mercury Arc Rectifiers and high vacuum using a mercury vapour pump. Unless the vacuum was extremely hard, unpleasant "arc backs" would occur which were bad for ones nerves! Looking back on it all its a bit like climbing Everest and then being told that one isn't qualified to go up a ten foot ladder.