I am investigating how machine tool installations should be tested and inspected. I have asked several equipment manufacturers about test certificates and they look at me blankly. In general what I have found is that the supply is tested and certified to the isolator/switchfuse feeding the machine but when the equipment is connected, there is no testing carried out on the actual kit. Does anybody have any thoughts/experience in this area. This also covers periodic inspection. I have used BS EN 60204 as a basis when I have discussed with Machine tool manufacturers.