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Long Span Length > 1,8 km Span OPPC – up to 400 kV
OPGW / OPPC and Accessories
System Solution
OPGW / OPPC solution
Used fibres adding flexibility and future to fibre network
SMF-28e+ - extending G652 standard
– Improved bending – Advanced technology for future
networks
G657 Fibre optimised for Access-network and broadband installation in house
– Specified microbending down to 5mm bend radius
Fibres used in cables designs
G655 NZDS-Fibre optimised for Long Haul Terrestrial network
– Industry leading specification – Lowest PMD available
have to be resistant against stress of…
Installation
Ice loads
Temperature change
Lightning impact
Short circuit currents
Wind loads
therefore our OPGW / OPPC designs provide…
OPGW and OPPC
high fibre excess length of approx. 5‰, to compensate high strain stresses in case of strong ice- or wind loads
all materials being highly corrosion resistant
high mechanical flexibility avoiding long term fatigue and breaks of the wires and the optical fibre unit in case of high vibration stress
Design Features
Faultless operating of the fibers requires a proper protection against mechanical and thermal stress.
nkt manufacturers tubes from seamless welded stainless steel which protect the fibers
against various mechanical impacts, moisture and heat.
They are placed as a loose buffer in the center or in the first layers of the cable.
The fibers are embedded with a defined over length and space for movement in a special heat resistant and moisture repellent gel, to withstand bending, vibration, elongation and temperature variation.
Steel tube design description
All material are specially choosen to exclude corrosion
Example:
OPPC without Grease!!!
4 layer design
Salt Spray Corrosion Test: according to UNE-EN ISO 9227 NSS (07) or ASTM B-117(09), during 1000 hours.
Result no significant corrosion !
Excelent protection against corrosion
Excellent fibre protection in case of short circuit
Example short circuit test 3 layer design:
Test according to IEC 60794-4-1 Temperature far below max of the conductor No attenuation change
Fibre protection
Continuous operation during / after lightning test
Test performed according IEC 60794-1-2
Fibre: No attenuation change < +/- 0,05 dB/km
High remaining RTS in case of broken wires
Fibre protection
Engineering Works OPGW/OPPC system design, design sag-calculation
TestingType-, routine- and sample testing Factory acceptance tests Special optical and mechanical tests
SupervisionStringing and installation of Joint boxes and OPPC accessories
Measurement Services Optical measurements at site
Installation including splicing of (subcontracted) OPGW Joint Boxes OPPC Termination Units and OPPC straight Joints
Installation Training
What Services do we provide?
for more details you are welcome with …
SALTEC GmbHPapenkamp 7D-21376 Salzhausen Germany
Phone: +49 4172 9895 0Fax: +49 4172 9895 44 E-Mail: [email protected]: www.saltec.de
