[quote author=JerryD  link=1096066841/15#16 date=1098039468]However some of the others on my course are also doing 2391 at the same time. they say it is a nightmare!!  Formulas about 18" long!!

Is inspection and testing THAT difficult?? [/quote]

No, it's not. And there are hardly any formulas to worry about at all. (The maths involved in most electrical installation and testing work is very elementary anyway.)

What is probably of more concern to those on the 2391 is that the pass mark is very high and no books are allowed in the exam.