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Main performance data of ITU-TG.**2(B1.1) Single mode Optical Cable Series Products Item Technical, Data Fiber-optic performance Mode field diameter(um), W/L***0nm (8.6~9.5) �0.7 Concentricity error of core(�m) ≤0.8 Cladding diameter (�m) **5.0�1.0 Clad non circularity (�m) <2.0 Coating diameter (�m) **5�*0 Cladding/coating concentricity error (�m) ≤*2.5 Cut-off W/L(nm) *0 m optical cable*2m fiber-optic(λcc) ≤***0 Attenuation constant (dB/km) ***0 nm GradeA≤0.*6dB/km GradeB≤0.*0dB/km ***0nm GradeA≤0.*2dB/km GradeB≤0.*5dB/km Dispersion Zero dispersion W/L(λo)(nm) ********4 Zero dispersion rate W/L(ps/nm 2.km) ≤0.**3 (ps/nm.km) Dispersion factor peak (ps/nm.km) ***8nm****9nm ≤3.5 ***1nm****0nm ≤5.3 ***0nm ≤*8 Optic cable mechanic property meet GB/T***4.*****8 national standard Optic cable environment performance Attenuation feature **0~**0�C Cat proper temperature, additional fading≤(0.*0~0.*5)dB/km Water leakage performance Under normaltemp, 1mwatr column, 3m optic cable, no water leakage at *4 hours Dribble performance *0cm optic cable is vertically placed. Filling/coating composite etc.are not dripped at *0 �C Electrical performance Of sheathing Insulation resistance After is sipped for *4 hours, water insulation resistance≥***0MΩ.km at DC**0V Dielectric strength After is sipped for *4 hours, it is not broken down at Dc *5kv 2 minutes Performance of multi-mode Optic Cable Series Products (YD/T**6) Fiber-optic model Ala Alb Alc used for mono-W.L area Used for double-W/L area used for mono-W.L area Used for double-W/L area Used for double-W/L area Used for double-W/L area Attenuation (dB/km) **0nm ≤(3.0~3.5) ≤(2.4~2.7) ≤(3.0~4.0) ≤(3.0~3.5) ≤4.0 ≤(3.0~3.5) ****0nm ≤(0.8~1.5) ≤(0.6~1.0) ≤(0.8~2.0) ≤(0.7~1.5) ≤2.0 ≤(0.7~1.5) Bandwidth (MHz/km) **0nm ≤(**0~***0) ≤(**0~**0) ≤(**0~**0) ≤(**0~**0) ≤(**0~**0) ≤(**0~**0) ***0nm ≤(**0~**0) ≤(***0~***0) ≤(**0~***0) ≤(**0~***0) ≤(**0~***0) ≤(**0~**0) N.A 0.2�0.*2/0.*2�0.*2 0.**5�0.**5 0.2�0.*2/0.*6�0.*3 Core diameter *0.0�3�m *2.5�3�m *5.5�3�m Out of roundness of core ≤6% ≤6% ≤6% Cladding diameter **5.0�3�m **5.0�3�m **5.0�3�m Clad non circulularity(%) ≤2% ≤2% ≤2% Coating diameter **5.0�*0�m **5.0�*0�m **5.0�*0�m Full-length prooftest Sustain 1s time under≥0.*7Gpa stress