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OPGW / OPPC and Accessories

Vers. 1/August 2010 2

OPGW / OPPC and accessories

nkt cables products

Optical fibres in general

Quality management

Accessories

References

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Complete OPGW / OPPC solutions

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Optical Phase Conductor(OPPC)

Optical Ground Wire(OPGW)

Metallic Aerial Self Supported(MASS)

OPGW / OPPC

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Optical Ground Wire (OPGW) is used onoverhead transmission- and distribution lines

OPGW replaces the ground wire

Functions of OPGW:

1) Fault-current protection

2) Lightning protection

3) Communication

OPGW What is it used for?

OPGW

MASS

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Optical Phase Conductor (OPPC) based on the same cable technology as OPGW

Replacement of phase conductors

Functions of OPPC:

1) transport of energy

2) Communication

3) Line Monitoring

Special accessories termination units Required to separate optical fibres from

HV- to Zero-potential !!!

nkt cables supplies OPPC incl. accessories up to 420kV

OPPC What is it used for?

OPPC

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Headline

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 / OPPC

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Headline

High fibre excess length of approx. 5, to compensate high strain stresses in case of strong ice- or wind loads

All materials are 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

Our design features

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Headline

One to One replacement No reinforcement of tower static

High mechanical flexibility Easy installation

Wire characteristics as Ground/Phase wire Allows exisiting tools for line engineering

High reliability like conventional ACSR Standard maintenance of transmission line

Our design advantages

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OPGW / OPPC designs

Opticalfibres

Stainlesssteeltube

Optical fibres

Stainlesssteeltube

Stranded tube design Central light tube design

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Vertical integration / used standards

Our production facilities comprise

Fibre colouring

Drawing of aluminium wires

Manufacturing of stainless steel tube with optical fibres

Stranding

Test laboratories

...manufactured and tested according to latest international standards

EN 187 200 / IEC 794-4-1 / IEEE 1138

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Colouring

Coating

Core

Cladding

n2

n1n2

Optical fibres (in a nuts shell)

Made of glass

Different optical densityin core and cladding

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Fibres used in nkt cables designs

All types of fibres can be integrated in our:

OPGW / OPPC designs

Used for long transmission distance:

Singlemode step index fibres; SMF (G.652)

Non Zero Disperion Shifted Fibres, NZDS (G.655)

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Headline

Transmission parametres of optical fibres

Most important fibre characteristics are...

Fibre attenuation causing loss of signal energy Transmission distance is limited

Dispersion causing spread of signal Transmission capacity via long distances is lower

State-of-the-art fibres Highest quality Lowest transmission limiting parametres

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Quality

Check

System

Testing

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Our routine checks

Before shipping all OPGW /OPPC are tested concerning:

Mechanical and electrical design parameters

Attenuation with OTDR (each fibre; 1310nm and 1550nm)

Complete test documentation is presented to the customer

Full material and process tracebility

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Headline

Our environmental type testsIncluding all possible environmental stress events

Tensile tests

Temperature tests from - 45C to + 80C

Aeolean vibration test

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Our electrical type testsConsider all electrical impacts

Short circuit test according to data sheet value of respective design

Worst case lightning current

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Fittings and accessories

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2)

OPGW joint box technology

with Standard technique for up to144 splices

or with fibre management forup to > 288 splices

Made of an aluminium housing

highest resistance against

- environmental stress

- external impacts (e.g. shotgun)

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2)OPGW joint box technology

One hood joint for all OPGW designsand diameters

Quick and easy to install

Low installation cost

Reduced number of single components

Easy to order

No risk of missing components

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2)OPGW joint box tower fixing

Joint box tower fixing

Clamping for corner

Clamp bracket for diagonal

Clamping for tower pools

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FOC into Comms Room and OTS Controller (VALCAP)

TransmissionTelcom

OPPC

OPPC termination unit

OPPC Straight Joint

OPPC - Accessories

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Available voltage levels of OPPC termination units:

- 36 kV- 72,5 kV- 145 kV- 245 kV- 420 kV

For the highest pollution severity level IV

OPPC Accessories Termination units

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2)Fittings and mounting materials

Our OPGWs / OPPCs are compatible with:

Spiral suspension and tension fittings

Standard clamp technology

We recommend:

To select the right fitting dimension with the respective supplier

To take care of the respective installation recommendations with respect to the selected installation material

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OPGW references

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OPGW / OPPC accessories references

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Thank you for your attention!

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