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Showing posts with the label EEE

Electrical Safety

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It is recommends that a periodic inspection and test of the electrical installation should be carried out by a registered electrician at least every five year. The electrical works should meets the national standards “You should never try to carry out your own electrical repairs” However, there are number of simple, visual checks that you can carry out yourself 1)       Check your RCD protection in your fuse-box 2)       Make sure that your plug sockets are not overloaded 3)       Ensure that plugs and sockets are not damaged 4)       Check that visible cables and leads are in good conditions 5)       Check that your light fittings are not visibly damaged and that down-lighters are in good working condition 6)       Check that you are not storing combustible materials around your fuse-box, electric meter or electr...

Specification required for Earthing

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1)       Earthing electrode should be placed at least one and half meter  away from the building 2)       Earth wire should be same material with earth electrode 3)       The minimum sectional area of earth wire should be greater than 0.02 sq. inch and less than 0.1 sq. inch 4)       The size of earth conductor should not be less than half of the section of a line conductor 5)       The earth electrode should be taken as GI pipe with minimum diameter of 12 mm and at least 32 cm length 6)       Coal and salt mixture with loose soil should be filled around the earth electrode 7)       All the earth wire run along with the sub-circuits should be terminated hooked firmly at the main board 8)       The earth resistance should be low enough to flow of current sufficient to op...