WCA November 2016

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60 Wire & Cable ASIA – November/December 2016
Qin Yu, Fei Qian, Liming Chen,
Qingqing Qi, Shiying Wang, Huiping Shi, Cheng Liu
FiberHome Telecommunication Technologies Co Ltd
Wuhan, Hubei, China
Tel: +86 27 87420569
Email:
4.2.3 Environmental property
Water penetration and temperature cycling test according
to IEC 60794-1-22 F5and IEC 60794-1-22 F1, respectively,
were carried out and the results are shown in the following
section.
4.2.3.1 Water penetration test
The water penetration test was carried out on a 3m flat
cable sample; the cable must sustain 1m height of water
for 24 hours.
After this there should be no water penetration. Five
samples were cut to verify the water penetration
performance of the cable, and all of the five samples
passed the test.
4.2.3.2 Temperature cycling test
According to the requirements of the clients, the flat
cable went through a temperature cycling test from
-20ºC to +60ºC, and kept 12 hours for -20ºC and +60ºC,
respectively.
The whole temperature cycling test included two cycling
process. When the experiment was over, the additional
attenuation of the flat cable was tested, and the results
showed that it was much less than 0.1dB which was the
acceptance criteria of the client.
4.2.4 Flame retardant test
The flat cable designed was mainly used for the drop
application, and the sub-unit of the cable should satisfy
flame retardant requirements.
A vertical flame propagation for a single sample according
to IEC 60332-1-2 standard was carried out. After the flame
application reached 60 seconds, the distance between the
lower edge of the top support and the onset of charring
was 120mm.
In other words, the riser cable demonstrated in this paper
is safe for the drop application.
5 Conclusions
The first and second designs of the flat cable could
both satisfy good processing performance, and the
test results showed that they also both have excellent
transmission, mechanical, environmental and flame
retardant properties.
These two kinds of flat cable could apply in the FTTH
application and give the operator more choice for the drop
application.
6 Acknowledgments
The authors wish to thank the staff of Fiberbn Home
Telecommunication Technologies Co Ltd for their support.
Special thanks to the IWCS staff for the articles in this
year’s publication.
7 References
[1] Qingqing Qi, Kai Fu “A new all-dielectric aerial cable for FTTH access
network,” Proceedings of 63rd IWCS (2014)
[2] Enrico Consonni, Paolo Marelli, “Latest developments on high
fibre count cables for metro/access networks dedicated to FTTH
applications”, Proceedings of the 57th IWCS (2008)
[3] Mechanical performance for cables: IEC 60794-1-2 Ed 2.0: Optical
Fibre Cables- Part 1-2: Generic specification- Basic optical cable test
procedures
[4] IEC 60794-1-22 Ed 1.0: Optical Fibre Cables-Part 1-22: Generic
specification- Basic optical cable test procedures- Environmental test
methods
[5] IEC 60332-1-2 Edition 1.0: Test on electric and optical fibre cables
under fire conditions- Part 1-2: Test for vertical flame propagation for a
single insulated wire or cable- Procedure for 1kW pre-mixed flame
Paper courtesy of the 64th IWCS Technical Symposium,
Atlanta, Georgia, USA, November 2015.