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drcat
10 Kw Shower installation, CU 2 floors down and 4 meters back. Approx 10mm2 cable run of 12 meters. Can I spur from lighting circuit in attic above airing cupboard into separate RCD enclosure fixed in airing cupboard to reduce wiring run or do I run fully to CU and install RCBO (if poss)or fix a separate shower RCD enclosure there?