BS60898 - M.C.B, BS1361 - HRC cartridge fuse, BS3036 - Rewireable Fuse., BS88 - Industrial type fuse (HBC), Advantages of an MCB - Cheap, quick to reset, easy to fit., Disadvantage of a BS1361 fuse. - Wrong size fuse wire installed., Main incoming size of line conductor - 16mm, Average size of main fuse in the home. - 80/100A, Earth system in which the earth and neutral are combined. - TNC-S system, Earth system that relies on an earth electrode. - TT system,

Design.

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