Describe the methods and precautions involved in ‘hot tapping’ a live steam pipeline in a geothermal power plant.

Hot tapping, also known as pressure tapping or live tapping, is the procedure of connecting a new branch to an existing pipeline while the pipeline is in service and under pressure. In a geothermal power plant's live steam pipeline, this is a high-risk operation requiring careful planning and execution. The first step is a thorough risk assessment to identify potential hazards and develop mitigation measures. This includes evaluating the pipeline's material, thickness, pressure, temperature, and the presence of any corrosion or defects. A detailed procedure must be developed, outlining each step of the hot tapping process, including the equipment to be used, the personnel involved, and the safety precautions to be taken. The next step involves preparing the pipeline by cleaning ....