Renewable energy sources - Energy sources that can be replaced continually andf will never deplete , Non-renewable energy sources - Energy sources that cannot be replaced and will deplete , Bakun Hydroelectric power station in Sarawak , Hybrid power station in Pulau Perhentian Kecil, Terengganu , Example renewable energy sources , Example non-renewable energy sources , Example d.c., Example a.c., Step-up transformer, Step-down transformer, Transformer equation , Single-phase wiring - Electricity usage not exceeding 10kW or 50A , Three-phase wiring - Electricity usage more than 10kW or 50A, 3-pin plug , 2-pin plug , 3-pin plug (appliances) - Electric kettles and iron, 2-pin plug (appliances) - Electric toothbrushes and hair dryers , Live wire (colour) - Brown, Neutral wire (colour)  - Blue, Catridge Fuse, Replaceable wire fuse , MCB, Lightning conductor ,

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