StandardsInternational : EN 50399 B2; IEC 60332-1; IEC 60332-3; IEC 60754-1; IEC 60794; IEC 61034
National : NF C 32-070/C1
This tight buffer cable is designed for indoor/outdoor installation.
This cable has an outstanding fire behaviour.
Direct connectorization is made easy with 900µm buffered structure.
This cable can be operated under a large temperature range.
The TBU-B2 LSZH* SP1857 cable has a central strength member (FRP: Fibre Reinforced Plastic), with 900µm buffered structure around. The design is reinforced by a layer of glass yarns and a LSZH* sheath.
The TBU-B2 LSZH* SP1857 cable is available with singlemode and multimode fibres.
The tight buffer cable performances are specified in the following tables.
This cable is provided as a standard with a black sheath, other sheath colours are also available. Long exposure to UV with these other colours could generate colour fading.
B2ca S1a d0 a1
* LSZH: Low Smoke Zero Halogen.
|Strength member||Central FRP|
|Construction type||Multi Tight|
|Additional strength member||Glass yarn|
|Halogen free||IEC 60754-1|
|Cable Diameter, range||5.3 .. 8.4mm|
|Number of optical fibres, range||4 .. 24|
|Crush resistance (IEC 60794-1-E3)||100N/cm|
|Mechanical resistance to impacts||10 impacts of 3 N.m|
|Flame retardant||IEC 60332-1|
|Fire retardant||IEC 60332-3|
|Smoke density||IEC 61034-2|
|Gases toxicity||IEC 60754-1|
|U.V resistance||Very good|
|Installation temperature, range||0 .. 40°C|
|Storage temperature, range||-40 .. 70°C|
|Operating temperature, range||-20 .. 70°C|
|See all products|
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Docs and info
Nexans - FIBRE OPTIC CABLE - TBU-B2 LSZH Cca s1 d0 a1 SP1857 - XXxYY - FB - TN - metricXX = Fibre Count YY = Fibre Type FB = Frameries, Belgium (manufacturing place) TN = Traceability Number