David morris
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- Joined
- Oct 31, 2019
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Hello i have a fuse box in the shed which is feed from a fcu in the house i plugged my table saw into a portable rcd from a extension reel and it tripped however it did not trip the portable rcd ,the shed fuse or the fcu fuse instead it fused the mcb on the main board in the house could anyone tell me why this was please