It is not I who has completely flipped Chris, it is simply that the scope definition is much too wide. I thought you had learned the regs too, but then perhaps Chapter 1 is not very interesting!
I am simply trying to summarise the very difficult situation faced by inspectors, it is not up to them or the client to define the limitations under normal conditions, this should be defined by the book of regulations to be used for the inspection. It is not reasonable to expect one to know all the details of the machinery regulations, and standards for cookers and other appliances or anything except BS7671. To make this work the boundary needs to be properly defined, the end of BS7671 (fixed wiring for now), and appliances or attached items that cannot be inspected to BS7671. This includes the totality of connected machines, control panels, fire alarms, etc. and the situation can only get more complex when more technology enters the world. Take a domestic electronic control system using wi-fi for control. It controls lights, AV systems, heating, air-con, etc. It contains loads of electronics. All the loads are wired in. Now, what do I inspect and test? One could probably break the entire expensive thing with an MFT and some misplaced testing. Most electricians would wisely run away. The definition should stop at an Isolator, a socket, or the first electronic item encountered (dimmer switch thermostat etc.). Zs or whatever cannot be safely tested, but in the grand scheme of things, does it matter? We can check the Earth bonding and this is quite sufficient, there will probably be RCD protection anyway, and overload is not at all likely. Similarly, disconnection time is probably the least of our worries.
It is not I who has completely flipped Chris, it is simply that the scope definition is much too wide. I thought you had learned the regs too, but then perhaps Chapter 1 is not very interesting!
I am simply trying to summarise the very difficult situation faced by inspectors, it is not up to them or the client to define the limitations under normal conditions, this should be defined by the book of regulations to be used for the inspection. It is not reasonable to expect one to know all the details of the machinery regulations, and standards for cookers and other appliances or anything except BS7671. To make this work the boundary needs to be properly defined, the end of BS7671 (fixed wiring for now), and appliances or attached items that cannot be inspected to BS7671. This includes the totality of connected machines, control panels, fire alarms, etc. and the situation can only get more complex when more technology enters the world. Take a domestic electronic control system using wi-fi for control. It controls lights, AV systems, heating, air-con, etc. It contains loads of electronics. All the loads are wired in. Now, what do I inspect and test? One could probably break the entire expensive thing with an MFT and some misplaced testing. Most electricians would wisely run away. The definition should stop at an Isolator, a socket, or the first electronic item encountered (dimmer switch thermostat etc.). Zs or whatever cannot be safely tested, but in the grand scheme of things, does it matter? We can check the Earth bonding and this is quite sufficient, there will probably be RCD protection anyway, and overload is not at all likely. Similarly, disconnection time is probably the least of our worries.
