8) This describes the essential skills and knowledge and their level, required for this unit. Evidence shall show that knowledge has been acquired of safe working practices and installing and modifying performance data communication optical fibre cabling. All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies.. KS01-EF105A Optical fibre cable installation and modification practices Evidence shall show an understanding of optical fibre communication cable installation and modification practices, applying safe working practices and relevant Standards, Codes and Regulations to an extent indicated by the following aspects: T1. Telecommunications Standards and Regulations Telecommunications Wiring Rules AS/ACIF S009 or its replacement. Telecommunications Equipment Standards AS/ACIF S008 or its replacement. Cabling Provider Rules. T2. Risk Management Principles with respect to: laser and similar products. optical fibre products. low voltage and extra low voltage circuits. working in hazardous areas. T3. Optical Fibre Safety - Laser AS/NZS 2211.1 Safety of laser products AS/NZS 2211.2 Safety of optical fibre communications systems (OFCS) Nature of intense light outside of the visible light spectrum. Safety precautions to be employed when working with intense light sources. Laser classifications and their typical uses T4. 4. Optical Fibre Safety - Hazards Chemicals used in the installation and termination process including Isopropyl Alcohol, Acetone, Kerosene, Mineral Turpentine and other solvents. Epoxy resins and other adhesives. Hot surface precautions. Disposal of hazardous materials including sharps (syringes glass shards and the like). Working in confined spaces and at height. T5. Optical Theory Electromagnetic Spectrum and the place of visible light, infrared and ultra violet bands. Frequency of oscillation and the relationship to wavelength of light. Propagation speed and the refractive index. Reflection of light and refraction of light. T6. Optical Fibre Principles of Operation Multi Mode Optical Fibres (MMOF) Single Mode Optical Fibres (SMOF) Advantages and applications Refractive index and how it can be employed in optical fibres. Transmission path for laser energy within the optical fibre. Optical fibre performance and the mechanisms that may result in losses. Requirements of optical fibre cables as specified in current Standards T7. Installation of Cables Requirements of the standard AS/ACIF S009 or its replacement. AS/NZS 3080 or its replacement. Installation requirements of cables by the manufacturer. Building Codes of Australia. Construction of domestic, commercial and industrial buildings. Purpose and procedures for pre-testing optical fibre cable prior to installation Bending radii and hauling requirements. Cable supporting structures, cable trays and catenaries Types of securing devices and anchors. Safety precautions T8. Terminating Fibre Cables Precautions required for the use of solvents and cleaning agents. Safe handling and disposal of waste materials at the conclusion of termination. Safe handling of fibre cables that may carry laser light energy. Manual means of striping and cleaning optical fibre cables. Optical devices to safely examine optical fibre cables. Mechanical means to terminate or splice optical fibre cables Termination devices and methods Preparation and splicing techniques. Devices used to protect terminations and splices against mechanical damage. Colour individual fibre cables and tubes to ensure end to end integrity. T9. Testing optical fibre cables. AS/NZS 3080 Telecommunications Installations Concept of measurements in decibels. Loss measurements methods at different wavelengths of light Setting up required equipment for accurate testing and the calibration of that equipment. Precautions employed to ensure accurate measurements. Operating principles and applications of an Optical Time Domain Reflectometer (OTDR). Operating principles and applications of an visible light source and an optical light loss test set Extraction and recording of test reports. Analyse and interpretation of test reports and corrective action. T10. Building Construction and the building codes. Building Codes of Australia Construction of domestic, commercial and industrial buildings T11. Supporting structures and fixings Types of cable supporting structures, cable trays and catenaries Types of securing devices for anchoring cable trays and catenaries. T12. Administration and management (records) Completion Compliance Certificate (TCA1) Contractual obligations for the provision of test results and reports to customers. Requirements to keep and make available copies of test results of individual fibres. Requirements to record cable pathways and locations of coiled extra cable length for expansion or re-termination. Requirements of labelling Frames, Cabinets and outlets. Requirements of record keeping for cross connects and patches. How to plan records indicating history of faults or deficiencies attributed to the fibre cable to plan replacement or maintenance. |