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 Standards Used for Earthing Systems Definitions Over the past century, Electrical Safety Standards have evolved into highly developed systems that cover all the major aspects for a safe installation, including Earthing Systems. In Low-voltage (LV) Electrical Installations, the reference standard IEC 60364 is used for the measures to be implemented to guarantee the protection of personnel and property. The IEC 60364 standard has defined three types of Earthing Systems, namely TT, IT, and TN systems. Since IEC publishes International Standards for all electrical, electronic, and related technologies and is the leading international organization in its field, IEC 60364 is the apex level document that informs the standards for LV Electrical Installations around the world. Therefore, the three types of earthing systems defined in IEC 60364 are also recognised in many national standards. BS 7671: 2008, also known as the IEE Wiring Regulations 17th Edition is the British Standard publish...

International Electrical Engineering Regulation - (I.E.E. Regulation) 01. Live wire should always be mounted on the right side of the switch. 02. The live socket should be connected to the right side of the socket outlet 03. Earth wire should be connected to metal covered electrical appliances. 04. Sub circuits should be clearly mentioned on the distribution board. 05. All low voltage devices should be clearly mentioned. 06. If there is more than one sub-circuit they should be connected to the      distribution board. 07. Neutral wire circuits of the distribution board should be connected in an       orderly manner 08. Aluminum conductors should not be in direct contact with copper conductors. 09. For PVC (Polyvinyl Chloride) cables the temperature should not exceed 60C. 10. Power should be supplied to the hanging electrical equipment through       flexible wires. 11. Oil-filled electrical equipment should be installed no more than 30 meters ...