An electrical installation work is complete only when the prescribed pre-commission tests are conducted on different components and the test results are found satisfactory. By carrying out the pre-commission tests, it is ensured that different components of the system have their declared specifications/characteristics and also the system is fit for safe and reliable operation. The precommission tests for different components of an electrical system are prescribed by the Bureau of Indian Standards and International Electrotechnical Commission. The manufacturers also recommend certain site tests before commissioning their equipments. The Electrical Inspector who is the authority to certify the safety of an electrical installation may insist on the owner of the installation to carry out read more

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