ITU L.26:2002
ITU L.26:2002 Optical Fibre Cables For Aerial Application Describes characteristics, construction and test methods of optical fibre cables for aerial application but does not apply to Optical Fibre Ground Wire (OPGW) cables.
Table of Contents
FOREWORDCONTENTS
1Scope
2References
2.1Normativereferences
2.2Informativereferences
3Termsanddefinitions
4Abbreviations
5Characteristicsofopticalfibresandcables
5.1Opticalfibrecharacteristics
5.1.1Transmissioncharacteristics
5.1.2Fibremicrobending
5.1.3Fibremacrobending
5.2Mechanicalcharacteristics
5.2.1Bending
5.2.2Tensilestrength
5.2.3Crushandimpact
5.2.4Torsion
5.3Environmentalconditions
5.3.1Hydrogengas
5.3.2Moisturepermeation
5.3.3Waterpenetration
5.3.4Lightning
5.3.5Bioticdamage
5.3.6Vibration
5.3.7Temperaturevariations
5.3.8Wind
5.3.9Snowandice
5.3.10Strongelectricfields
6Cableconstruction
6.1Fibrecoatings
6.1.1Primarycoating
6.1.2Secondarycoating
6.1.3Fibreidentification
6.1.4Removabilityofcoating
6.2Cableelements
6.2.1OpticfibreRibbon
6.2.2Slottedcore
6.2.3Tube
6.2.4Strengthmember
6.2.5Water-blockingmaterials
6.3Sheath
6.4Armour
6.5Identificationofcable
7Testmethods
7.1Testmethodsforcableelements
7.1.1Testsapplicabletoopticalfibres
7.1.2Testsapplicabletotubes
7.1.3Testsapplicabletoribbons
7.2Testmethodsformechanicalcharacteristicsofthe
cable
7.2.1Tensilestrength
7.2.2Bending
7.2.3Bendingundertension(Sheavetest)
7.2.4Crush
7.2.5Abrasionresistance
7.2.6Torsion
7.2.7Impact
7.2.8Kink
7.2.9Repeatedbending
7.3Testmethodsforenvironmentalcharacteristics
7.3.1Temperaturecycling
7.3.2Longitudinalwaterpenetration(applicableto
filledcablesonly)
7.3.3Hydrogen
7.3.4Nuclearradiation
7.3.5Aeolianvibration
7.3.6Ultravioletresistance
7.3.7Sheathtracking
7.3.8Shotgun
7.3.9Lightning