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Product Name: Alcatel-Lucent URC2 Unrepeatered Fiber Optic Cable 2
Product Description
The Alcatel-Lucent Unrepeatered Fiber Optic Cable 2 (URC2) for unrepeatered submarine systems is designed to ensure no strain is exerted on the fibers during normal operation. The cable features a welded steel-tube housing of up to 24 fibers.
Benefits
- Low and few maintenance costs: if a cable does break, the effects of high strains and seawater ingress are contained to preserve the majority of cable
- Highly reliable for over 25 years
Features
- Used for water depths of 7,000 m
- Can be used in extreme situations
- Highly resistant to cable breaks
Documents
> Up to 24 fibers
> Maximum deployment depth: 7000m
> Highly reliable over 25 years
> Highly resistant to cable breaks
> Hermetic barrier against hydrogen
> Electroding capabilities
> Complete range of armouring
> Universal Quick Joint (UQJ) qualified
Alcatel has developed a complete range of fiber optic submarine
cables, one of them being the URC2 cable family. The URC2 cable has been
designed specially for unrepeatered systems, benefiting from our past extensive
experience in the conception and development of submarine fiber optic cables.
The cable design is based on a welded steel tube, housing up to 24 fibers in a
stress-free environment to ensure a long lifetime. The fibers have a defined
excess length relative to the tube, which is filled with a water-blocking
compound. The steel tube offers mechanical and hydrostatic protection and acts
as a hermetic barrier against hydrogen for the optical fibers. A steel vault
protects the steel tube to complete the cable core. This vault provides a high
level of protection and a very good mechanical behavior during sea-going
operations, allowing the URC2 cable to be laid in very deep water, to depths of
7000 meters. The vault is held in place by a welded copper tape that increases
the hydrogen protection and allows electroding (fault location by means of
sea electrodes) The necessary mechanical properties of the URC2 cable family are
adapted for each application. Different structures external to the insulation,
such as the number and diameter of armour wires, differ according to different
water depths, seabed topology and the degree of protection needed. Two layers of
polypropylene yarn outer servings, flooded in bitumen, are applied over the
armouring to provide corrosion protection. The URC2 cable family and associated
joints are designed to perform reliably for at least 25 years. The URC2 cables
are also qualified for use with the Universal Quick Joint (UQJ). The cable
design ensures that no strain is exerted on the fibers during normal operation.
In the case of a cable break, high strains and seawater ingress are limited to a
short length, so the majority of the cable remains serviceable.
Company Details
Formed from the merger of Alcatel and Lucent Technologies, Alcatel-Lucent combines two entities that share a common lineage that can be traced back to 1986, when Alcatel’s parent company, CGE (la Compagnie Générale d’Electricité), acquired ITT’s... more
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