We used to look up to them as the Police for electrical work, When we had inspectors the standard of workmanship was a lot better because of the random checking of sockets, connections etc.
Especially on new jobs, when it was not OK the power was NOT connected up and no meter was hung and a second visit had to be arranged for with an additional charge.
COC's are fine but a lot of sparky's don't always use them.
The product of rotation, excitation and flux produces electricty.
