Now, why would one code an upfront RCD as anything? It is fully compliant although if a fault occurs may not be convenient.
Your bathroom list, is the fan or light fitting in a zone, and which? Bonding may well not be visible, you check the earth resistance with a meter and check it meets 415.2.2. There is no requirement for supplementary bonding to be in a particular position (701.415.2), as long as it is present (low resistance value, it is adequate). Remember bonding is only required if the metalwork is extraneous to the bathroom, isolated items (or plumbing with plastic pipes) do not need any. Items needing bonding must be able to introduce a potential into the bathroom from somewhere else. If the light fitting is plastic or class 2 it doesn't require bonding, similarly the fan.
Your list of potential C2 defects is now looking a bit thin. Do you really have a metal partition, or do you mean that it has metal studs? If so which regulation is breached by a lack of earthing this structure? Perhaps you are concerned that a cable (sheathed, so mechanically protected) might somehow contact the frame, and then someone put an exposed screw into the frame potentially allowing them to receive a shock? The frame is not an exposed conductive part, or an extraneous conductive part, so where is this coming from? Note that BS 7671 explicitly states that metal fittings which are isolated do not require bonding. You recently asked if metal ceiling parts need bonding. Again they are generally isolated metalwork, and light fittings which may be attached are Earthed anyway. Earthing continuity in the average suspended ceiling would be difficult to arrange, and in any case, is not required.
Now, why would one code an upfront RCD as anything? It is fully compliant although if a fault occurs may not be convenient.
Your bathroom list, is the fan or light fitting in a zone, and which? Bonding may well not be visible, you check the earth resistance with a meter and check it meets 415.2.2. There is no requirement for supplementary bonding to be in a particular position (701.415.2), as long as it is present (low resistance value, it is adequate). Remember bonding is only required if the metalwork is extraneous to the bathroom, isolated items (or plumbing with plastic pipes) do not need any. Items needing bonding must be able to introduce a potential into the bathroom from somewhere else. If the light fitting is plastic or class 2 it doesn't require bonding, similarly the fan.
Your list of potential C2 defects is now looking a bit thin. Do you really have a metal partition, or do you mean that it has metal studs? If so which regulation is breached by a lack of earthing this structure? Perhaps you are concerned that a cable (sheathed, so mechanically protected) might somehow contact the frame, and then someone put an exposed screw into the frame potentially allowing them to receive a shock? The frame is not an exposed conductive part, or an extraneous conductive part, so where is this coming from? Note that BS 7671 explicitly states that metal fittings which are isolated do not require bonding. You recently asked if metal ceiling parts need bonding. Again they are generally isolated metalwork, and light fittings which may be attached are Earthed anyway. Earthing continuity in the average suspended ceiling would be difficult to arrange, and in any case, is not required.
