Hi all, im installing a new consumer unit in a bungalow , customer wanted it moving from bathroom to hallway. The system is a tns system and the meter tails are around 7 meters long, now because of this i have installed a 80 amp switch fuse inside the meter box and the tails run from this up the cavity ( around a meter or so ) and over the top of the loft joists. Because this circuit is not on an rcd am i now required to install supplementary bonding? The cavity the tails run up is one of the bathroom walls but tails do not run over the top of bathroom. Thought about putting a 100ma time delayed rcd in aswell but dont think this would count as additional protection as its not 30ma and would struggle to fit in meter box .
Thanks
Thanks