threephase123
Junior Member
- Joined
- Feb 25, 2012
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Why do we protect ring final circuits with 32 amp mcb's if 2.5mm t&e can only take a maximum of 27 amps?
Also when calculating volt drop on a ring, length of cable is calculated from start of leg one of ring (outgoing) to end of leg 2 of ring (incoming)? Or is it the farthest point away from consumer unit?
Also when calculating volt drop on a ring, length of cable is calculated from start of leg one of ring (outgoing) to end of leg 2 of ring (incoming)? Or is it the farthest point away from consumer unit?