damage/entry of water, suitable individual enclosures shall be designed. All Equipments in the Racks are mounted with space to have proper ventilation. All rack wiring are provided with proper labels to have easy fault fixing. Mechanical assembly and position of Instruments and accessories is to be provided Proper internal wiring, routing and Harnessing Electrical and functional testing of wired racks. Earthing of all racks and instruments. Detail Engineering of measurement system Separate field junction boxes shall be used for facility and test article measurements. 3.1.1.1 Test Article Measurements: Separate junction box shall be planned for each type of measurement (Pressure, temperature, vibration, and speed etc.) Cabling from test article sensors to FJB is PTFE 6 Core for pressure and 4 core for RTD/Flow/Speed. Multi core 96/64 shielded PVC armoured cabling shall be carried out between test article pressure, temperature (RTD), displacement and speed measurement junction boxes (FJB) to SCR. Multicore thermocouple cabling shall be carried out between thermocouple JB to SCR for high temperature and heat flux measurement. Single core shielded co-axial cable shall be used for vibration, acoustic and dynamic pressure measurement from test article FJB to SCR. Mechanical assembly and position of Instruments and accessories in the Instrument Rack Proper internal wiring, routing and Harnessing of SCR and Control room Racks. 3.1.1.2 Test Facility Measurements: All Measurement cables shall be grouped to FJB and are routed to SCR. Field junction boxes with 225 terminals are planned. Multi core 64/96 shielded PVC armoured cable shall be used between FJB to SCR. Two core shielded PVC armoured cable shall be used between facility transmitters (Pressure & Temperature) and FJB. Impulse lines for pressure transmitters shall be of 12 mm OD SS tube and thickness suitable for the process pressure. Suitable double compression SS tube fittings shall be used to connect process line, impulse tubes and instruments. The length of impulse lines shall not exceed 5 meters without any joint wherever not possible lines should be extended through weld or compression fitting connectors. Removal of Absolute/Differential pressure transmitters must be possible without stopping the process. Necessary manifold valves on
damage/entry of water, suitable individual enclosures shall be designed. All Equipments in the Racks are mounted with space to have proper ventilation. All rack wiring are provided with proper labels to have easy fault fixing. Mechanical assembly and position of Instruments and accessories is to be provided Proper internal wiring, routing and Harnessing Electrical and functional testing of wired racks. Earthing of all racks and instruments. Detail Engineering of measurement system Separate field junction boxes shall be used for facility and test article measurements. 3.1.1.1 Test Article Measurements: Separate junction box shall be planned for each type of measurement (Pressure, temperature, vibration, and speed etc.) Cabling from test article sensors to FJB is PTFE 6 Core for pressure and 4 core for RTD/Flow/Speed. Multi core 96/64 shielded PVC armoured cabling shall be carried out between test article pressure, temperature (RTD), displacement and speed measurement junction boxes (FJB) to SCR. Multicore thermocouple cabling shall be carried out between thermocouple JB to SCR for high temperature and heat flux measurement. Single core shielded co-axial cable shall be used for vibration, acoustic and dynamic pressure measurement from test article FJB to SCR. Mechanical assembly and position of Instruments and accessories in the Instrument Rack Proper internal wiring, routing and Harnessing of SCR and Control room Racks. 3.1.1.2 Test Facility Measurements: All Measurement cables shall be grouped to FJB and are routed to SCR. Field junction boxes with 225 terminals are planned. Multi core 64/96 shielded PVC armoured cable shall be used between FJB to SCR. Two core shielded PVC armoured cable shall be used between facility transmitters (Pressure & Temperature) and FJB. Impulse lines for pressure transmitters shall be of 12 mm OD SS tube and thickness suitable for the process pressure. Suitable double compression SS tube fittings shall be used to connect process line, impulse tubes and instruments. The length of impulse lines shall not exceed 5 meters without any joint wherever not possible lines should be extended through weld or compression fitting connectors. Removal of Absolute/Differential pressure transmitters must be possible without stopping the process. Necessary manifold valves on
IDT00277300000000000isro05402.docx