1. TRANSFORMER TANK:

1.1 The tank shall be of electrically welded construction and fabricated from sheet steel of adequate thickness. Tanks shall be hydraulically tested to ensure that they are leak-proof and subjected to vacuum test.1.2 The tank shall have adequate strength to withstand without any deformation (i) Mechanical shock during transportation and (ii) oil filling by vacuum1.3 The tank shall also be provided with two numbers grounding pads for earthing.1.4 The transformer tank shall be provided with sets of bi-directional flat wheels for rolling the transformer parallel to either centre lines.1.5 Jacking pads, lifting eyes and pulling lugs shall be provided to facilitate lifting and movement of the transformer, filled with oil. All heavy removable parts shall be provided with eye bolt for ease of handling.1.6 The transformer top shall be provided with a detachable tank cover with a bolted flanged gasket joint. Lifting lugs shall be provided for removing the cover. If necessary, the surface of the cover shall be suitably sloped so that it does not retain rain water.1.7 Adequate space shall be provided at the bottom of the tank for collection of sediments.