EICR - main earth and neutral

istead of expected single 25mm

As it's an apartment, I wouldn't be at all surprised if it was fused down after the cut-out - and thus a smaller size could be expected (often 16mm² perhaps even 10mm² if the load was expected to be modest).


Split-con often used to be used in place of SWA (as it's much easier to handle and terminate), but has a few disadvantages for modern requirements - firstly much of the "armour" is N rather than PE, so it's not suitable for avoiding 30mA RCD protection when concealed in a wall or similar - so basically treat it as if it were T&E rather than SWA. Also some care is needed with fault protection - since the plastic covering on the individual strands of the N mean that fault currents aren't necessarily shared between all of the strands if the fault occurs before the final terminal, unlike a normal stranded conductor, so you might want to think about  fault protection of conductors in parallel (e.g. appendix 10 of BS 7671).


   - Andy.

istead of expected single 25mm

As it's an apartment, I wouldn't be at all surprised if it was fused down after the cut-out - and thus a smaller size could be expected (often 16mm² perhaps even 10mm² if the load was expected to be modest).


Split-con often used to be used in place of SWA (as it's much easier to handle and terminate), but has a few disadvantages for modern requirements - firstly much of the "armour" is N rather than PE, so it's not suitable for avoiding 30mA RCD protection when concealed in a wall or similar - so basically treat it as if it were T&E rather than SWA. Also some care is needed with fault protection - since the plastic covering on the individual strands of the N mean that fault currents aren't necessarily shared between all of the strands if the fault occurs before the final terminal, unlike a normal stranded conductor, so you might want to think about  fault protection of conductors in parallel (e.g. appendix 10 of BS 7671).


   - Andy.