Study Committee B2Technical Advisory Group B2-AG-06

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BangkokBangkok 28 February, 2011

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Fittings for Optical Cables –Selection, Test and Assessment,

SCB2, WG11, TF3 reports – Fittings for Optical Cable on Overhead LinesCable on Overhead Lines

Results of Questionnaire – Electra 165Results of Questionnaire Electra 165Guide to Selection & Use – Electra 176 Guide to Testing Procedures for OPGW & OPPC gfittings – Electra 188 Guide to Testing Procedures for ADSS & OPAC fittings

Electra 191– Electra 191

Study Committee B2 - Technical Advisory Group B2-AG-06

T d D fi iti O ti l C blTypes and Definitions - Optical Cable on Overhead Lines

OPGW – Optical Ground WireADSS – All Dielectric Self Supporting cable pp gOPAC – Optical cable wrapped, lashed or clipped to ground wire or conductor (Attached)OPPC – Optical Phase Conductor (OPCON)

Study Committee B2 - Technical Advisory Group B2-AG-06

Typical Optical Ground Wire (OPGW) Installation

OPGWTypical OPGW Cable Construction

Aluminium Spacer

Buffer Tube

Optical Fibres

Aluminium Clad Steel Wire

Aluminium Barrier Tape

Study Committee B2 - Technical Advisory Group B2-AG-06

Typical All Dielectric Self Supporting (ADSS) installation

Typical ADSS Cable ConstructionBuffer Tube

Aramid Yarn Layer

Central Member

Optical Fibres

Outer Sheath

Inner Sheath

ADSS Cable

Study Committee B2 - Technical Advisory Group B2-AG-06

Typical OPAC Optical Cable (attached) Installation

EarthwireTape or Spiral Clip

Lashed CableLashed CableTypical Lashed Cable Construction

Buffer Tube

Optical Fibres

St th M b

Outer Sheath

Strength Members

Study Committee B2 - Technical Advisory Group B2-AG-06

Questionnaire - Fittings for Optical Cable on Overhead LinesOverhead Lines

Circulated via SCB2 National members66 replies received from Utilities in Australia (4), Asia66 replies received from Utilities in Australia (4), Asia (4), Europe (37), North America (17) & South America (4)Drawings of typical fittings included in QuestionnaireDrawings of typical fittings included in QuestionnaireQuestionnaire did not address Optical Phase Conductor (OPPC)

Study Committee B2 - Technical Advisory Group B2-AG-06

Typical Suspension Clamps for Optical Cable on Overhead Lines

Bolted

Armour Grip (AG)

Study Committee B2 - Technical Advisory Group B2-AG-06

Armour Grip (AG)

Typical Tension Clamps for Optical Cable on Overhead Lines

Helicale ca

ConicalBolted

Study Committee B2 - Technical Advisory Group B2-AG-06

Typical Vibration Dampers for Optical Cable on Overhead Lines

Stockbridge

BretelleImpact

Study Committee B2 - Technical Advisory Group B2-AG-06

Results of Questionnaire - Fittings for Optical Cable on Overhead Lines

5060

40

50Bolted suspensionAG suspension

2030 AG suspension

Bolted deadendConical deadend

010

OPGW OPAC ADSS

Conical deadendHelical deadend

Study Committee B2 - Technical Advisory Group B2-AG-06

Results of Questionnaire - Fittings for Optical Cable onResults of Questionnaire - Fittings for Optical Cable on Overhead Lines

40

30 StockbridgeImpact damper

10

20 Impact damperBretelleOther

0OPGW OPAC ADSS

OtherNone

Study Committee B2 - Technical Advisory Group B2-AG-06

R l f Q i i OPAC O i l C blResults of Questionnaire - OPAC Optical Cable on Overhead Lines

WRAPPEDWRAPPED57%LASHED 29%CLIPPED 14%14%

Study Committee B2 - Technical Advisory Group B2-AG-06

Results of Questionnaire – Operating Experience

30

40

20

30 OPAC

ADSS

10 OPGW

0No

problemMinor

problemcable

Minorproblemfittings

Majorproblem

cable

Majorproblemfittings

Study Committee B2 - Technical Advisory Group B2-AG-06

Results of Questionnaire - Test Standard, Fittings for Optical Cable

20

15

20NoneSuppliers Standard

10In-house StandardNational Standard

0

5

Study Committee B2 - Technical Advisory Group B2-AG-06

0OPGW Attached ADSS

Fittings for Optical Cable on Overhead Lines

Results of Questionnaire was published in Electra No 165Task Force continued work - Guide to Selection & Use of Fittings for optical cable on overhead lines

Study Committee B2 - Technical Advisory Group B2-AG-06

Selection and Use - Fittings for Optical Cable on Overhead Lines

Fittings for OPGW -Suspension clampsTension (dead end) clamps

Fittings for ADSS -Suspension clampsTension (dead end) clampsTension (dead-end) clamps

Aeolian vibration dampers Anti-galloping devicesAircraft Warning Markers

Tension (dead-end) clampsAeolian vibration dampers Anti-galloping devicesDownlead clampsAircraft Warning Markers

Grounding connectorsJumper connectorsDownlead clamps

Downlead clamps

Fittings for OPAC –R ti fitti lDownlead clamps Routing fittings only

Study Committee B2 - Technical Advisory Group B2-AG-06

Selection and Use - Fittings for Optical Cable on Overhead Lines

TYPE USE FITTINGOPGW Longer spans Helical dead-end

All voltagesNew build lines

AG SuspensionStockbridge damper

ADSS Shorter spans Helical deadendADSS Shorter spans< 150 kVExisting lines

Helical deadendAG SuspensionImpact damper

OPAC All earthwires Routing fittings only

Study Committee B2 - Technical Advisory Group B2-AG-06

Fittings for Optical Cable on Overhead Lines

Guide to Selection and Use was published in Electra No 176in Electra No 176Task Force continued work - Guide to Testing Procedures, Fittings for OPGW,Testing Procedures, Fittings for OPGW, OPPC, OPAC and ADSS optical cable

Study Committee B2 - Technical Advisory Group B2-AG-06

Test Terms and DefinitionsMFL – Mechanical Failure LoadRTS – Rated Tensile StrengthSMWT* – Specified Maximum Working Tension Also known as gMAT* – Max Allowable Tension or MRCL* – Max Rated Cable LoadEDT – Every Day Tension nm – nanometre (optical wavelength) dB/k d ib l/k ( ti l l )dB/km – decibel/km (optical loss)

* Max tensile load that may be applied to cable in service with an optical attenuation increase < 0.05 dB/km at 1550 nm

Study Committee B2 - Technical Advisory Group B2-AG-06

Test Procedures - Fittings for OPGW on Overhead LinesLines

TENSION FITTINGTensile load*

SUSPENSION FITTINGVertical load/turning angle*

Aeolian vibration fatigue*Galloping fatigue*Fault current

Aeolian vibration fatigue*Galloping fatigue*Fault current Unbalanced load to IEC 61284

* Increase in optical atten ation hen loaded p to SMWT < 0 05 dB/km at* Increase in optical attenuation when loaded up to SMWT < 0.05 dB/km at 1550 nm

Study Committee B2 - Technical Advisory Group B2-AG-06

Optical SchematicMonitoring optical signal by concatenating fibres in one continuous loop

Study Committee B2 - Technical Advisory Group B2-AG-06

Tension Test

Load cable to a minimum of 50% RTS while monitoring optical signal losswhile monitoring optical signal loss.

8m

Study Committee B2 - Technical Advisory Group B2-AG-06

Aeolian Vibration TestVibrate cable at resonant frequency between 20-70 Hz at an anti-node loop velocity of 500mm/s for 100,000,000 cycles while monitoring optical signal losscycles while monitoring optical signal loss

Study Committee B2 - Technical Advisory Group B2-AG-06

Turning Angle TestTension cable to Specified Maximum Working Tension (SMWT) at maximum angle while monitoring optical signal losssignal loss

Study Committee B2 - Technical Advisory Group B2-AG-06

T t P d Fitti f OPGW O h dTest Procedures - Fittings for OPGW on Overhead Lines

VIBRATION DAMPER ANTI-GALLOPING DEVICEVIBRATION DAMPERApplication test*Reference to IEC 61897 for Stockbridge dampers

ANTI-GALLOPING DEVICEApplication test*Required to limit galloping

Damper should control vibration to Anti-node velocity < 500 mm/sec

AIRCRAFT WARNING DEVICEApplication test*

DOWNLEAD CLAMPGROUND CONNECTORS DOWNLEAD CLAMPApplication test*

GROUND CONNECTORSApplication test*

* Increase in optical attenuation when loaded up to SMWT < 0.05 dB/km at 1550 nm

Study Committee B2 - Technical Advisory Group B2-AG-06

Test Procedures - Fittings for OPPC on Overhead Lines

TENSION FITTINGAs OPGW plus

Corona and RIV

SUSPENSION FITTINGAs OPGW plus

Corona and RIV

VIBRATION DAMPERAs OPGW plus

Corona and RIV

ANTI GALLOPING DEVICEAs OPGW plus

Corona and RIV

JUMPER CONNECTORSAs OPGW plus

Corona and RIV

DOWNLEAD CLAMPAs OPGW plus

Corona and RIVCorona and RIV Corona and RIV

PHASE TO EARTH INSULATOR

Study Committee B2 - Technical Advisory Group B2-AG-06

PHASE TO EARTH INSULATOR

Fittings for Optical Cable on Overhead Lines

Guide to Testing Procedures of Fittings for OPGW & OPPC was published in Electra No 188OPPC was published in Electra No 188Guide to Testing Procedures of Fittings for OPAC & ADSS optical cable was published in Electra No 191

Study Committee B2 - Technical Advisory Group B2-AG-06

Test Procedures - Fittings for ADSS cable on Overhead LinesOverhead Lines

TENSION FITTINGUltimate Tensile load

SUSPENSION FITTINGVertical load/turning angle*

Optical tensile load*Elevated temperature*Aeolian vibration fatigue*

Vertical load/turning angleAeolian vibration fatigue*Galloping fatigue*Unbalanced loadg

Galloping fatigue*Unbalanced load

> SMWT-EDT < SMWT-EDT2

* Increase in optical attenuation when loaded up to SMWT < 0.05 dB/km at 1550 nm

Study Committee B2 - Technical Advisory Group B2-AG-06

Elevated Temperature TestRaise cable temperature to 70°C and load to Every D T i (EDT) f 24Day Tension (EDT) for 24 hours

Study Committee B2 - Technical Advisory Group B2-AG-06

Test Procedures - Fittings for ADSS cable on Overhead Lines

VIBRATION DAMPERApplication test*Reference to IEC 61897 for

ANTI-GALLOPING DEVICEApplication test*Required to limit galloping

Stockbridge dampersRequirement for performance Standard for Impact dampers on ADSS cables

q g p g

ARC SUPPRESSION DEVICERequired to withstand vibration and galloping testADSS cables test

DOWNLEAD CLAMPApplication test*

* Increase in optical attenuation when loaded up to SMWT < 0.05 dB/km at 1550 nm

Study Committee B2 - Technical Advisory Group B2-AG-06

Test Procedures - Fittings for OPAC cable on Overhead LinesOverhead Lines

Routing effectivenessClamping*Abrasion (vibration & combined cyclic motion)*Abrasion (vibration & combined cyclic motion)Fault conditionsWeathering, ageing and pollution resistanceMechanical loading*Mechanical loadingMovement controlElectrical tests

* Increase in optical attenuation when loaded upto SMWT < 0 05 dB/km at Increase in optical attenuation when loaded upto SMWT < 0.05 dB/km at 1550 nm

Study Committee B2 - Technical Advisory Group B2-AG-06

Related Standards on Testing of Fibre Optic Cable and FittingsFittings

IEEE 1138 – OPGWIEEE 1222 – ADSSIEEE 1591 – Fittings for Optical CablesIEEE 1591 – Fittings for Optical CablesBS EN 187200 Optical cables to be used along electrical power lines (OCEPL)IEC 61284* Overhead Lines FittingsIEC 61284* Overhead Lines FittingsIEC 61897* Stockbridge type Aeolian vibration dampers* For standard , non-fibre fittings

Study Committee B2 - Technical Advisory Group B2-AG-06

AcknowledgementsSpecial recognition to Tom Smart, TF Convenor TF3 members during period of optical fibre reports - H Argasinska, A Berg, U Cosmai, K Halsen, D Havard, D Hearnshaw, R Kleveborn, S Mikkelsen M Mito F Morentin M Muggiasca J Schmidt M St LouisMikkelsen, M Mito, F Morentin, M Muggiasca, J Schmidt, M St-Louis, D Sunkle, R Sutehall, W TroppauerFrom - Cable and Fitting manufacturers, Consultants and UtilitiesSpecial Contributors – T Alderton, G Diana & M Ervik CIGRE reviewers – K Papailiou and F TavanoWG11 Convenors – D Havard and K Papailiou

Study Committee B2 - Technical Advisory Group B2-AG-06