Tubes which are to be terminated on the instruments, may be subjected to vibrations during operation, a semi circular loop shall be formed on the tube near the termination point to avoid damage to the tubes during operation. All such instruments shall be identified in consultation with the department Engineer, before termination of the tubes. Tubes shall be identified at both ends by line number/instrument number/equipment number to which it is terminated by Anodized Aluminium tags of rectangular shape and shall be tied to the tube securely by 16 gauge S. S. wire. Compression unions shall be used for joining the tubes. At the joint an offset of around six inches (3 inches on each side of the joint) shall be given on the tube run, so that the fitting will be away from the surface of the tube support having free access for tightening and checking of leaks during test. Joints on adjacent tubes in a bundle shall be staggered suitably to avoid interference. All the air supply lines shall be pneumatically tested to 1.1 times of the operating pressure by the vendor. The joint should be bubble tight. All tube fittings and Teflon tapes for commissioning the valves are party scope Auxiliary system: 3.4.4.10.1 CCTV CCTV Cameras shall be installed as per installation drawing approved by the department. CAT 6 / Co-axial cable to be laid from CCTV camera post to FJB as per 3.4.4.15 Laying of armoured power cable from CCTV camera post to 230 V ac outlets available in the facility. Cable trays shall be laid between each camera to FJB as per 3.4.4.14. Cables shall be terminated to the instrument / FJB using suitable Aluminium cable gland. Functional verification upto monitor and Test & Evaluation. 3.4.4.10.2 Intercommunication System Wall Mounted/structure mounted Intercommunication Systems shall be installed as per installation drawings approved by the Department. 10 core shielded armoured cable has to be laid between Intercommunication System units and FJB. Cable laying shall be carried out as per 3.4.4.15 3 core armoured power cable has to be laid from inter communication equipment to 230 V AC outlet in test stand.
Tubes which are to be terminated on the instruments, may be subjected to vibrations during operation, a semi circular loop shall be formed on the tube near the termination point to avoid damage to the tubes during operation. All such instruments shall be identified in consultation with the department Engineer, before termination of the tubes. Tubes shall be identified at both ends by line number/instrument number/equipment number to which it is terminated by Anodized Aluminium tags of rectangular shape and shall be tied to the tube securely by 16 gauge S. S. wire. Compression unions shall be used for joining the tubes. At the joint an offset of around six inches (3 inches on each side of the joint) shall be given on the tube run, so that the fitting will be away from the surface of the tube support having free access for tightening and checking of leaks during test. Joints on adjacent tubes in a bundle shall be staggered suitably to avoid interference. All the air supply lines shall be pneumatically tested to 1.1 times of the operating pressure by the vendor. The joint should be bubble tight. All tube fittings and Teflon tapes for commissioning the valves are party scope Auxiliary system: 3.4.4.10.1 CCTV CCTV Cameras shall be installed as per installation drawing approved by the department. CAT 6 / Co-axial cable to be laid from CCTV camera post to FJB as per 3.4.4.15 Laying of armoured power cable from CCTV camera post to 230 V ac outlets available in the facility. Cable trays shall be laid between each camera to FJB as per 3.4.4.14. Cables shall be terminated to the instrument / FJB using suitable Aluminium cable gland. Functional verification upto monitor and Test & Evaluation. 3.4.4.10.2 Intercommunication System Wall Mounted/structure mounted Intercommunication Systems shall be installed as per installation drawings approved by the Department. 10 core shielded armoured cable has to be laid between Intercommunication System units and FJB. Cable laying shall be carried out as per 3.4.4.15 3 core armoured power cable has to be laid from inter communication equipment to 230 V AC outlet in test stand.
IDT00207900000000000isro05402.docx