CLC/TS 50430:2005

Optical fibre cables - Gas pipe cables - Family specification for cables to be installed in high pressure gas pipes

This document is a family specification that covers gas pipe cables and sub-ducts for installation by blowing and/or pulling / dragging in high pressure gas pipes. Systems built with components covered by this standard are subject to the requirements of sectional specifications EN 60794-3 and EN 60794-4 where applicable. Gas pipe cable and sub-duct constructions have to meet the different requirements of the gas-companies and/or associations regarding chemical, environmental, operational interactions and in general maintenance conditions. A table of preferential applications, describing gas pipe cable characteristics versus methods of installation is reported in Annex A for high pressure gas pipe cables. Clause 4 describes a blank detail specification for gas pipe cables and sub-ducts for installation by blowing and/or pulling / dragging in/into high pressure gas pipes. It incorporates some minimum requirements. Detail specifications may be prepared on the basis of this family specification. The parameters specified in this standard may be affected by measurement uncertainty arising either from measurement errors or calibration errors due to lack of suitable standards. Acceptance criteria should be interpreted with respect to this consideration. The number of fibres tested is representative of the sewer cable and should be agreed between the customer and supplier.

Lichtwellenleiterkabel - Kabel für Gasleitungen - Familienspezifikation für Kabel zu Montage in Hochdruckgasleitungen

Optični kabli – Kabli za polaganje v plinske cevi – Rodovna specifikacija za kable, namenjene za napeljavo po visokotlačnih plinskih ceveh

General Information

• Status: Published
• Publication Date: 09-Feb-2005
• ICS: 33.180.10 - Fibres and cables
• Technical Committee: CLC/TC 86A - Optical fibres and optical fibre cables
• Drafting Committee: IEC/SC 86A - IEC_SC_86A
• Parallel Committee: IEC/SC 86A - IEC_SC_86A
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 10-Feb-2005
• Completion Date: 10-Feb-2005
• Ref Project: SIST-TS CLC/TS 50430:2006 - Optical fibre cables - Gas pipe cables - Family specification for cables to be installed in high pressure gas pipes

Overview

CLC/TS 50430:2005 is a CENELEC family specification for optical fibre gas pipe cables and sub-ducts intended for installation in high pressure gas pipes. The Technical Specification covers cable and sub-duct constructions designed to be installed by blowing, pulling/dragging, or direct installation (with stabilized parachute and reduced-pressure gas/air). It defines a blank detail specification with minimum requirements, notes test and measurement considerations, and includes an Annex with a table of preferential applications relating cable characteristics to installation methods.

Key topics and requirements

• Scope and lifetime
  • Designed for an expected operating lifetime of at least 10 years.
  • Materials and accessories must not present health hazards in intended use.
• Installation methods
  • Blowing or pulling into sub-ducts previously installed inside the gas pipe.
  • Direct installation into the gas pipe using gas/air flow.
• Cable and sub-duct design
  • Fibre counts up to 288 are covered.
  • Sub-ducts must resist installation pressure differences and gas pressure, be circular, have low-friction inner/outer surfaces, and resist chemical attack from natural gas (examples: PE 100).
  • Cables must have low coefficient of friction for direct installation and permit fibre identification along the length.
• Mechanical & environmental testing
  • Family-specification test requirements include tensile performance, repeated bending, torsion, bend, crush, impact and temperature cycling. Specific clause references guide test conditions and acceptance criteria.
  • Measurement uncertainty (calibration/measurement error) is acknowledged - acceptance criteria should be interpreted accordingly.
  • The number of fibres to be tested should be agreed between customer and supplier.
• Product documentation
  • Clause 4 provides a blank detail specification template (construction, application data, marking, mechanical limits, temperature ranges, manufacturing lengths).

Applications and who uses it

• Target users: gas companies, pipeline operators, network planners, optical cable manufacturers, installation contractors, procurement specialists, and standards writers.
• Practical uses:
  • Specifying and procuring optical fibre systems for Fiber-in-Gas deployments in steel, cast-iron or PE high pressure gas pipelines.
  • Designing sub-duct and cable constructions for safe, maintainable long-term in-pipe fibre networks.
  • Developing test plans and acceptance criteria for high pressure gas pipe cable projects.

Related standards

• EN 60794-1-1 / EN 60794-1-2 (generic optical fibre cable specs and test procedures)
• EN 60794-3, EN 60794-4 (sectional specifications for outdoor/aerial and related cable types)
• EN 60793 (optical fibre measurement methods), EN 60811 (cable material test methods)

Keywords: CLC/TS 50430, optical fibre cables, gas pipe cables, high pressure gas pipes, sub-ducts, blowing installation, direct installation, PE 100, EN 60794.

Standards Content (Sample)

SLOVENSKI SIST-TS CLC/TS 50430:2006

STANDARD
marec 2006
Optični kabli – Kabli za polaganje v plinske cevi – Rodovna specifikacija za
kable, namenjene za napeljavo po visokotlačnih plinskih ceveh
Optical fibre cables - Gas pipe cables - Family specification for cables to be
installed in high pressure gas pipes
ICS 33.180.10 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

TECHNICAL SPECIFICATION CLC/TS 50430
SPECIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION February 2005

ICS 33.180.10
English version
Optical fibre cables –
Gas pipe cables –
Family specification for cables to be installed
in high pressure gas pipes
Lichtwellenleiterkabel –
Kabel für Gasleitungen –
Familienspezifikation für Kabel zu
Montage in Hochdruckgasleitungen

This Technical Specification was approved by CENELEC on 2004-09-11.

CENELEC members are required to announce the existence of this TS in the same way as for an EN and to
make the TS available promptly at national level in an appropriate form. It is permissible to keep conflicting
national standards in force.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. CLC/TS 50430:2005 E
Foreword
This Technical Specification was prepared by the Technical Committee CENELEC TC 86A,
Optical fibres and optical fibre cables.
The text of the draft was submitted to the vote and was approved by CENELEC as
CLC/TS 50430 on 2004-09-11.
The following date was fixed:
– latest date by which the existence of the CLC/TS
has to be announced at national level (doa) 2005-03-11
__________
- 3 - CLC/TS 50430:2005
Contents
Page
1 Scope.5
2 Normative references.5
3 Symbols.6
4 Family specification for gas pipe cables and sub-ducts for installation by blowing and/or
pulling/dragging in/into gas pipes (blank detail specification and minimum requirements).7

4.1 Construction.7
4.1.1 General.7
4.1.2 Sub-ducts.7
4.1.3 Gas pipe cables .7

4.2. Product descriptions .8
4.2.1 Gas pipe cables description .8
4.2.1.1 Cable for installation within sub-ducts
(previously installed into the gas pipe in between two adjacent I/O-ports)…. .8
4.2.1.2 Cables for direct installation into the gas pipe .9
4.2.2 Sub-duct description.10

4.3 Optical fibres.11
4.3.1 Single-mode dispersion unshifted (B1.1) optical fibre.11
4.3.2 Single-mode dispersion shifted (B2) optical fibre.11
4.3.3 Single-mode non-zero dispersion (B4) optical fibre.11
4.3.4 Multimode fibres .12

4.4 High pressure gas pipe cable constructions.12
4.4.1 Cable for installation within sub-ducts
(previously installed within high pressure gas pipe).12
4.4.2 Cable for direct installation within high pressure gas pipe .13
4.4.3 Sub-duct construction.14

4.5 Installation and operating conditions .14
4.5.1 Tests applicable to cables/cable elements .14
4.5.2 Installation conditions.14

4.6 Mechanical and environmental tests .15
4.6.1 Sub-ducts.15
4.6.1.1 Tests applicable.15
4.6.1.2 Details of family requirements and test conditions for sub-ducts .16
4.6.1.2.1 Pressure.16
4.6.1.2.2 Tensile performance.16
4.6.1.2.3 Kink.16
4.6.1.2.4 Crush.17
4.6.1.2.5 Impact.17
4.6.1.2.6 Flexibility.17
4.6.2 Cable for installation within sub-ducts (previousty installed into the gas pipe).18
4.6.2.1 Tests applicable.18
4.6.2.2 Details of family requirements and test conditions
for high pressure gas pipe cable tests.19
4.6.2.2.1 Tensile performance.19
4.6.2.2.2 Repeated bending.19
4.6.2.2.3 Torsion.20

4.6.2.2.4 Bend.20
4.6.2.2.5 Crush.20
4.6.2.2.6 Impact.21
4.6.2.2.7 Temperature cycling.21
4.6.2.3 Details of family requirements and test conditions for blowing performance
of high pressure gas pipe cables to be installed in sub-ducts .22
4.6.3 Cables for direct installation into the high pressure gas pipe.23
4.6.3.1 Tests applicable.23
4.6.3.2 Details of family requirements and test conditions
for high pressure gas pipe cables .24
4.6.3.2.1 Tensile performance.24
4.6.3.2.2 Repeated bending.24
4.6.3.2.3 Torsion.25
4.6.3.2.4 Bend .25
4.6.3.2.5 Crush.25
4.6.3.2.6 Impact.26
4.6.3.2.7 Temperature cycling.26

4.7 Examples of sub-ducts and high pressure gas pipe cables. .27
4.7.1 Cables for installation in sub-ducts within gas pipes.27
4.7.2 Cables for direct installation into the high pressure gas pipes .28
4.7.2.1 High pressure gas pipe cables.28

4.8 Examples for installation schemes of cables in high pressure gas pipes
(Fiber-in-Gas) .29
4.8.1 Steel gas pipes .29
4.8.2 PE gas pipes.30

Annex A (informative) – O.F. cables for high pressure gas pipes.31

- 5 - CLC/TS 50430:2005
1 Scope
This document is a family specification that covers gas pipe cables and sub-ducts for
installation by blowing and/or pulling / dragging in high pressure gas pipes. Systems built with
components covered by this standard are subject to the requirements of sectional specifications
EN 60794-3 and EN 60794-4 where applicable.
Gas pipe cable and sub-duct constructions have to meet the different requirements of the gas-
companies and/or associations regarding chemical, environmental, operational interactions and
in general maintenance conditions.
A table of preferential applications, describing gas pipe cable characteristics versus methods of
installation is reported in Annex A for high pressure gas pipe cables.
Clause 4 describes a blank detail specification for gas pipe cables and sub-ducts for installation
by blowing and/or pulling / dragging in/into high pressure gas pipes. It incorporates some
minimum requirements.
Detail specifications may be prepared on the basis of this family specification.
The parameters specified in this standard may be affected by measurement uncertainty arising
either from measurement errors or calibration errors due to lack of suitable standards.
Acceptance criteria should be interpreted with respect to this consideration.
The number of fibres tested is representative of the sewer cable and should be agreed between
the customer and supplier.
2 Normative references
The following referenced documents are indispensable for the application of this document. For
dated references, only the edition cited applies. For undated references, the latest edition of the
referenced document (including any amendments) applies.

EN 60068-2-2 Environmental testing (IEC 60068-2-2)
EN 60793-1-20
Optical fibres - Part 1-20: Measurement methods and test
procedures - Fibre geometry (IEC 60793-1-20)

EN 60793-1-40 Optical fibres - Part 1-40: Measurement methods and test
procedures – Attenuation (IEC 60793-1-40)

EN 60793-1-44 Optical fibres - Part 1-44: Measurement methods and test
procedures - Cut-off wavelength (IEC 60793-1-44)
EN 60793-2 Optical fibres - Part 2: Product specifications (IEC 60793-2)

EN 60794-1-1 Optical fibre cables - Part 1-1: Generic specification -General
(IEC 60794-1-1)
EN 60794-1-2 Optical fibre cables - Part 1-2: Generic specification - Basic optical
cable test procedures (IEC 60794-1-2)

EN 60794-3 Optical fibre cables - Part 3: Sectional specification - Outdoor
cables – Duct, buried and aerial cables (IEC 60794-3)

EN 60794-3-10 Optical fibre cables - Part 3-11: Detailed specification - Outdoor
cables - Duct and directly buried optical telecommunication cables
(IEC 60794-3-10)
EN 60794-4 2003 Optical fibre cables - Part 3: Sectional specification – Aerial optical
cables along electrical power lines
(IEC 60794-4:2003)
EN 60811-1-1 1995 Common test methods for insulating and sheathing materials of
electric cables and optical cables - Part 1-1: Methods for general
application - Measurement of thickness and overall dimensions -
Tests for determining the mechanical properties
(IEC 60811-1-1:1993)
EN 60811-5-1 1999 Common test methods for insulating and sheathing materials of
electric cables - Part 5: Methods specific to filling compounds.
Section one - Drop-point - Separation of oil - Lower temperature
brittleness - Total acid number - Absence of corrosive components
- Permittivity at 23 °C - D.C. resistivity at 23 °C and 100 °C
(IEC 60811-5-1:1990, mod)
EN 187105 Single mode optical cable (duct/direct buried installation)
HD 402 S2 1984
Standard colours for insulation for low-frequency cables and wires
(IEC 60304:1982)
3 Symbols
For the purposes of this document, the following symbols apply:
λ cabled fibre cut-off wavelength
CC
d nominal outer diameter of the sewer cable
DS detail specification
T threshold tensile load below which no attenuation and/or fibre strain increase should
O
occur in the tensile performance test
T the acceptable amount of short-term tensile load that can be applied to the cable
M
without permanent degradation of the characteristics of the fibres in the tensile
performance test
T temperature cycling test low-temperature limit according to EN 60794-1-2,
AI
method Fl
T temperature cycling test low-temperature limit according to EN 60794-1-2,
A2
method Fl
T temperature cycling test high-temperature limit according to EN 60794-1-2,
B1
method Fl
T temperature cycling test high-temperature limit according to EN 60794-1-2,
B2
method Fl
t temperature cycling dwell time
n x d a value times cable outer diameter used for bends, mandrels, etc.

- 7 - CLC/TS 50430:2005
4 Family specification for gas pipe cables and sub-ducts for installation by
blowing and/or pulling/dragging in/into gas pipes
(blank detail specification and minimum requirements)
4.1 Construction
4.1.1 General
In addition to the constructional requirements of sectional specifications EN 60794-3 and
EN 60794-4, where applicable, the following considerations apply to the gas pipe cables and/or
sub-ducts.
The gas pipe cables and/or sub-ducts shall be designed and manufactured for an expected
operating lifetime of at least 10 years. It shall be possible to install or remove the cable in or
from the gas pipe throughout the operational lifetime. The materials in the gas pipe cable and/or
as well as accessories including fixing elements i.e. I/O-ports and sub-ducts shall not present a
health hazard within its intended use.
4.1.2 Sub-ducts
In case of use, the sub-duct with outer nominal diameters ranging from xx mm to yy mm shall
be able to resist pressure differences needed for installation by blowing and able to withstand
the gas pressure within the gas pipe. They shall be circular and the outer and inner surfaces a
low coefficient of friction. The material shall withstand all possible chemical attacks by the
natural gas itself, as for instance the PE 100. Inner- and outer-diameter and overall minimum
wall thickness shall be specified.
4.1.3 Gas pipe cables
A gas pipe cable in accordance to this specification should be suitable for installation in high
pressure gas pipes by the following installation methods, also applicable the access gas pipe
network:
∇
∇
∇ blowing and /or pulling into a sub-duct, previously installed into the high pressure gas
pipe between two I/O - ports;
∇
∇
∇ direct installation into the gas pipe in between two adjacent I/O-ports.
The attenuation of the installed cable at the operational wavelength(s) shall not exceed values
agreed between the customer and supplier.
There shall be no fibre splice in a delivery length unless otherwise agreed by the customer and
supplier.
It shall be possible to identify each individual fibre throughout the length of the sewer cable.

4.2 Product descriptions
4.2.1 Gas pipe cables description
4.2.1.1 Cable for installation within sub-ducts (previously installed into the gas
pipe in between two adjacent I/O-ports)
Fibre count: up to 288.
Such gas pipe cable has to be blown or pulled into the sub-duct described in 4.2.2.

(1) Prepared by
(2) Document No.:
Issue:
Date:
(3) Available from:
(4) Generic specifications: EN 60794-1-1 and EN 60794-1-2
Sectional specification: EN 60794-3
(5) Additional references:
Construction
Additional remarks
- Tube – filled
Additional armouring
- Metallic armouring
Outer sheath
Marking identification
- Customer requirement
- Identification of manufacturer
(8) Application information:
Maximum outer diameter (d)
Rated maximum tensile load
Minimum bending radius for no-load bending
Minimum bending radius for rated-load bending
Temperature range
- Transport and storage
- Installation
- Operation
Manufacturing length
- Typical
- Nominal/tolerances
- 9 - CLC/TS 50430:2005
4.2.1.2 Cables for direct installation into the gas pipe
Fibre count: up to 288.
Such cables are directly installed into the high pressure gas pipe with the help of a - pressure
reduced - gas flow of the natural gas itself and/or compressed air* using a stabilized parachute
within the high pressure gas pipe.
The cable should have a low coefficient of friction with respect to the inner surface of the gas
pipe, which consists of steel, casted iron and/or PE.

(1) Prepared by
(2) Document No.:
Issue:
Date:
(3) Available from:
(4) Generic specifications: EN 60794-1-1 and EN 60794-1-2
Sectional specifications: EN 60794-3 and EN 60794-4
(5) Additional references:
Construction Additional remarks

- Tube – filled
- Inner sheath (optional)
- Metallic armouring
Outer sheath
Marking identification
- Customer requirement
- Identification of manufacturer
(8) Application information:
Maximum outer diameter (d)
Rated maximum tensile load
Minimum bending radius for no-load bending
Minimum bending radius for rated-load bending
Temperature range
- Transport and storage
- Installation
- Operation
Manufacturing length
- Typical
- Nominal/tolerances
* Before pressurizing with air the gas pipe-section has to be inerted by nitrogen.

4.2.2 Sub-duct description
Such sub-ducts are directly inserted into the inner space of the high pressure gas pipe guided
by guide tubes to the bottom of the gas pipe.

(1) Prepared by
(2) Document No.:
Issue:
Date:
(3) Available from:
(4) Generic specifications: EN 60794-1-1 and EN 60794-1-2
Sectional specification: EN 60794-3 (all as applicable to conduits)
(5) Additional references:
All dielectric construction
- Single layer wall
- Double layer wall
Marking identification
- Customer requirement
- Identification of the manufacturer
(8) Application information:
Maximum outer diameter (d)
Rated maximum tensile load
Minimum bending radius for no-load bending
Minimum bending radius for rated-load bending
Temperature range
- transport and storage
under
- installation
consideration
- operation
Manufacturing tube length
- typical
- nominal/tolerances
- 11 - CLC/TS 50430:2005
4.3 Optical fibres
4.3.1 Single-mode dispersion unshifted (B1.1) optical fibre

Characteristics EN 60794-3 Family Test methods Remarks
(9) (sub)clause requirements (12) (13)
(10) (11)
Uncabled optical fibre 5 EN 60793-2
Attenuation coefficient 5.2.1 According to DS EN 60793-1-40

(cabled fibres) method A, B or C
at 1 310 nm ≤ 0,40 dB/km Note:
at 1 550 nm and
≤ 0,35 dB/km XX ≤ 25 nm
at 1 6XX nm, etc.
≤ 0,40 dB/km
Attenuation discontinuities 5.2.2.1 ≤ 0,10 dB EN 60793-1-40
at 1 310 nm and 1 550 nm method C
Cabled fibre cut-off 5.3 λ < λ operational EN 60793-1-44
CC
wavelength method B
Fibre colouring 5.4 HD 402 S2 Visual inspection
Outer diameter including 8.2.1.1 EN 60793-2 EN 60793-1-20

colouring method D
4.3.2 Single-mode dispersion shifted (B2) optical fibre

Characteristics EN 60794-3 Family Test methods Remarks
(9) subclause requirements (12) (13)
(10) (11)
Uncabled optical fibre 5.1 EN 60793-2
Attenuation coefficient 5.2.1 According to DS EN 60793-1-40
(cabled fibres)  method A, B or C

at 1 550 nm 5.2.1 ≤ 0,35 dB/km

Attenuation discontinuities EN 60793-1-40
≤ 0,10 dB/km
at 1 550 nm 5.2.2.1 method C
Cabled fibre cut-off 5.3 λ < λ operational EN 60793-1-44
CC
wavelength method B
Fibre colouring 5.4 HD 402 S2 Visual inspection
Outer diameter including 8.2.1.1 EN 60793-2 EN 60793-1-20
colouring method D
4.3.3 Single-mode non-zero dispersion (B4) optical fibre

Characteristics EN 60794-3 Family Test methods Remarks
(9) subclause requirements (12) (13)
(10) (11)
Uncabled optical fibre 5.1 EN 60793-2
Attenuation coefficient 5.2.1 According to DS EN 60793-1-40
(cabled fibres)  method A, B or C

at 1 550 nm 5.2.1
≤ 0,35 dB/km
at 1 6XX nm
≤ 0,40 dB/km
Attenuation discontinuities 5.2.2.1 EN 60793-1-40
≤ 0,10 dB/km
at 1 550 nm method C
Cabled fibre cut-off 5.3 λ < λ operational EN 60793-1-44
CC
wavelength method B
Fibre colouring 5.4 HD 402 S2 Visual inspection
Outer diameter including 8.2.1.1 EN 60793-2 EN 60793-1-20
colouring method D
4.3.4 Multimode fibres
Under consideration.
4.4 High pressure gas pipe cable constructions
4.4.1 Cable for installation within sub-ducts (previously installed within the
high pressure gas pipe)
Characteristics EN 60794-3 Family Test methods Remarks
subclause requirements
(9) (10) (11) (12) (13)
Lay-up 7.2 Acc. to DS Visual inspection
Gas cable core 7.3 Acc. to DS
Filling compound Acc. to DS Either EN 60794-1-2
(if used) method E14 or
EN 60811-5-1, Clause 4
EN 60811-5-1, Clause 5
EN 60811-5-1, Clause 8
Dry blocking 7.3 Acc. to DS Under consideration
compound
Strength member 7.4 Acc. to DS Visual inspection
- central
- peripheral
Moisture barrier 7.5 Acc. to DS
Metallic tapes:
Outer cable sheath 7.6
Material
Minimum sheath Acc. to DS EN 60811-1-1
thickness
Outer cable diameter Acc. to DS EN 60811-1-1
Optional protection Acc. to DS
Sheath marking 7.7
Configuration, Acc. to DS Visual inspection
dimensions
Abrasion resistance  Acc. to DS EN 60794-1-2 Steel needle
method E2B diameter
d = 1,0 mm
load: 4 N
Sheath abrasion 9.2.8 Acc. to DS EN 60794-1-2
method E2A
Cable length  Under consideration

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