Railway Kavach Optical Fibre Cable (OFC) Laying, Termination, Splicing, Testing and Commissioning

Railway Kavach Optical Fibre Cable (OFC) Laying, Termination, Splicing, Testing & Commissioning Project

Stallion Power Infra Private Limited successfully executed the Optical Fibre Cable (OFC) Laying, Termination, Splicing, Testing and Commissioning works associated with the Railway Kavach Automatic Train Protection (ATP) System. The project involved establishing a reliable optical fibre communication network along the railway corridor to support communication and data connectivity between Kavach field equipment, stations, telecom infrastructure and associated railway signalling systems.

The project included route preparation, trenching and installation of HDPE ducts, laying/blowing of armoured OFC, construction of cable jointing arrangements, fibre splicing, termination at designated locations and installation of fibre distribution and associated telecom equipment. The OFC network forms an important communication backbone for Kavach infrastructure, with Indian Railways identifying trackside OFC laying as one of the key activities in Kavach implementation.

Detailed testing and commissioning activities were carried out to verify the optical performance, continuity and integrity of the fibre network. OTDR testing, power-loss measurements, fibre identification, termination checks and end-to-end connectivity verification were undertaken before commissioning. All works were executed with appropriate safety measures, quality control procedures and adherence to approved railway drawings, specifications and site instructions.

Project Scope

• Detailed survey and finalization of OFC cable route along the railway corridor.
• Site preparation, trenching and installation of HDPE telecom ducts.
• Laying and installation of armoured Optical Fibre Cable through approved routes and ducts.
• Blowing/pulling of OFC through HDPE ducts using suitable cable-laying equipment.
• Provision of OFC joint chambers and cable protection arrangements at designated locations.
• Preparation and installation of OFC joint closures.
• Optical fibre splicing and proper fibre management at joint locations.
• Termination of OFC at designated stations, Kavach locations, telecom rooms and equipment locations.
• Installation and dressing of fibres in Fibre Distribution Management System (FDMS/FDF) arrangements.
• Installation of connectors, pigtails, patch cords and associated fibre accessories.
• Identification, tagging and proper documentation of individual optical fibres.
• OTDR testing and measurement of optical fibre link performance.
• Optical power and insertion-loss testing of completed fibre links.
• End-to-end continuity and connectivity testing of the OFC network.
• Rectification of fibre faults, excessive losses and improper splicing wherever required.
• Final testing, commissioning and integration of the OFC communication network.
• Preparation and submission of cable route plans, fibre termination details and completion documentation.

Key Highlights

• Project: Railway Kavach OFC Laying & Commissioning
• System: Kavach Automatic Train Protection (ATP) System
• Work Category: Railway Signalling & Telecommunication Infrastructure
• Major Works: Trenching, HDPE Duct Laying, OFC Laying/Blowing, Splicing & Termination
• Testing: OTDR, Optical Power, Insertion Loss, Continuity & End-to-End Connectivity Testing
• Equipment: OFC Joint Closures, FDMS/FDF, Pigtails, Connectors, Patch Cords and Associated Accessories
• Application: Communication backbone supporting Kavach field and station infrastructure
• Quality: Executed in accordance with approved railway specifications, drawings and technical requirements.
• Safety: Strict adherence to railway safety procedures and site-specific HSE requirements.
• Documentation: Cable route, fibre termination, testing and completion records maintained for future maintenance.

Project Highlights