SIST-TS CLC/TS 50431:2006
(Main)Optical fibre cables - Drinking water pipe cables - Family specification for cables to be installed in drinking water pipes
Optical fibre cables - Drinking water pipe cables - Family specification for cables to be installed in drinking water pipes
This document is a family specification that covers drinking water pipe cables and sub-ducts for installation by blowing and/or pulling / dragging in drinking water 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. Drinking water pipe cable and sub- duct constructions have to meet the different requirements of the drinking water companies and/or associations regarding chemical, environmental, operational interactions and in general maintenance conditions. A table of preferential applications, describing drinking water pipe cable characteristics versus methods of installation is reported in Annex A for drinking water pipe cables. Clause 4 describes a blank detail specification for drinking water pipe cables and sub-ducts for installation by blowing and/or pulling / dragging in / flowing drinking water 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 Trinkwasserleitungen - Familienspezifikation für Kabel zu Montage in Trinkwasserleitungen
Optični kabli – Kabli za polaganje v cevi s pitno vodo – Rodovna specifikacija za kable, namenjene za napeljavo po ceveh s pitno vodo
General Information
Standards Content (Sample)
SLOVENSKI SIST-TS CLC/TS 50431:2006
STANDARD
marec 2006
Optični kabli – Kabli za polaganje v cevi s pitno vodo – Rodovna specifikacija
za kable, namenjene za napeljavo po ceveh s pitno vodo
Optical fibre cables - Drinking water pipe cables - Family specification for cables to
be installed in drinking water pipes
ICS 33.180.10 Referenčna številka
SIST-TS CLC/TS 50431:2006(en)
© Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno
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TECHNICAL SPECIFICATION CLC/TS 50431
SPECIFICATION TECHNIQUE
TECHNISCHE SPEZIFIKATION February 2005
ICS 33.180.10
English version
Optical fibre cables –
Drinking water pipe cables –
Family specification for cables to be installed
in drinking water pipes
Lichtwellenleiterkabel –
Kabel für Trinkwasserleitungen –
Familienspezifikation für Kabel zu
Montage in Trinkwasserleitungen
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 50431:2005 E
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CLC/TS 50431:2005 - 2 -
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 50431 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
__________
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Contents
1 Scope.5
2 Normative references.5
3 Symbols.6
4 Family specification for drinking water pipe cables and sub-ducts for installation
by blowing and/or pulling/dragging in / floating into drinking water 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 Drinking water pipe cables.7
4.2 Product descriptions .8
4.2.1 Drinking water pipe cables description.8
4.2.1.1 Cable for installation within sub-ducts (previously installed into
the drinking water pipe in between two adjacent I/O-ports)….8
4.2.1.2 Cables for direct installation into the drinking water pipes .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 Drinking water pipe cable constructions.12
4.4.1 Cable for installation within sub-ducts (previously installed
within the drinking water pipe).12
4.4.2 Cable for direct installation into the drinking water pipes.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.15
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
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CLC/TS 50431:2005 - 4 -
4.6.2 Cable for installation within sub-ducts
(previously installed into the drinking water pipes) .18
4.6.2.1 Tests applicable.18
4.6.2.2 Details of family requirements and test conditions
for drinking water 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 drinking water pipe cables to be installed in sub-ducts.22
4.6.3 Cables for direct installation into the drinking water pipe.23
4.6.3.1 Test applicable.23
4.6.3.2 Details of family requirements and test conditions
for drinking water 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 drinking water pipe cables .27
4.7.1 Cables for installation in sub-ducts within drinking water pipe .27
4.7.2 Cables for direct installation into drinking water pipes……………. .28
4.7.2.1 Drinking water pipe cables……….28
4.8 Examples of installation schemes of o.f. cables in drinking water pipes
(Fiber in drinking water pipes).29
4.8.1 Steel – drinking water pipes .29
4.8.2 PE – drinking water pipes .30
Annex A (informative) - O.F. cables for drinking water pipes.31
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1 Scope
This document is a family specification that covers drinking water pipe cables and sub-ducts for
installation by blowing and/or pulling / dragging in drinking water 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.
Drinking water pipe cable and sub-duct constructions have to meet the different requirements of
the drinking water companies and/or associations regarding chemical, environmental,
operational interactions and in general maintenance conditions.
A table of preferential applications, describing drinking water pipe cable characteristics versus
methods of installation is reported in Annex A for drinking water pipe cables.
Clause 4 describes a blank detail specification for drinking water pipe cables and sub-ducts for
installation by blowing and/or pulling / dragging in / flowing drinking water 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)
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CLC/TS 50431:2005 - 6 -
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 1995 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
1
n x d a value times cable outer diameter used for bends, mandrels, etc.
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4 Family specification for drinking water pipe cables and sub-ducts for
installation by blowing and/or pulling/dragging in / floating into drinking
water 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 drinking water pipe
cables and/or sub-ducts.
The drinking water 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 drinking water pipe throughout the operational lifetime. The materials in the
drinking water pipe cable and/or as well as accessories including sealing 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 water pressure within the drinking water 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 drinking water itself, as for instance the PE 100. Inner- and outer-diameter and overall
minimum wall thickness shall be specified.
4.1.3 Drinking water pipe cables
A drinking water pipe cable in accordance to this specification should be suitable for installation
in drinking water pipes by the following installation methods, also applicable the access drinking
water pipe work:
∇
∇
∇ blowing and/or pulling into a sub-duct, previously installed into drinking water pipe
between two I/O - ports;
∇
∇
∇ direct installation into the drinking water 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.
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CLC/TS 50431:2005 - 8 -
4.2 Product descriptions
4.2.1 Drinking water pipe cables description
4.2.1.1 Cable for installation within sub-ducts (previously installed into the
drinking water pipe in between two adjacent I/O-ports)
Fibre count: up to 288.
Such drinking water 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
Inner sheath (optional)
Additional armouring
- Non-metallic 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
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4.2.1.2 Cables for direct installation into the drinking water pipes
Fibre count: up to 288
Such cables are directly installed into the drinking water pipes with the help of a proper flow of
water using a stabilized parachute within the drinking water pipe or other suitable techniques.
The cable should have a low coefficient of friction with respect to the inner surface of the
drinking water 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
Additional armouring
- Non-metallic armouring
Metallic armouring
Outer sheath
Additional 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
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CLC/TS 50431:2005 - 10 -
4.2.2 Sub-duct description
Such sub-ducts are directly inserted into the inner space of the drinking water pipe guided by
guide tubes to the bottom of the drinking water 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:
Construction
- Single layer wall
- Double layer wall
Additional armouring
- Metallic/Non metallic
Additional outer sheath
- 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
- Installation
- Operation
Manufacturing tube length
- Typical
- Nominal/tolerances
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4.3 Optical fibres
4.3.1 Single-mode dispersion unshifted (B1.1) optical fibre
Characteristics EN 60794-3 Family Test methods Remarks
(sub)clause requirements
(9) (13)
(10) (11) (12)
Uncabled optical fibre 5 EN 60793-2
Attenuation coefficient 5.2.1 According to DS EN 60793-1-40
(cabled fibres) methods A, B or C
at 1 310 nm Note:
≤ 0,40 dB/km
at 1 550 nm and
XX ≤ 25 nm
≤ 0,35 dB/km
at 1 6XX nm, etc.
≤ 0,40 dB/km
Attenuation discontinuities 5.2.2.1 EN 60793-1-40
≤ 0,10 dB
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
subclause requirements
(9) (13)
(10) (11) (12)
Uncabled optical fibre 5.1 EN 60793-2
Attenuation coefficient 5.2.1 According to DS EN 60793-1-40
(cabled fibres)
methods 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
subclause requirements
(9) (13)
(10) (11) (12)
Uncabled optical fibre 5.1 EN 60793-2
Attenuation coefficient 5.2.1 According to DS EN 60793-1-40
(cabled fibres)
methods 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
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CLC/TS 50431:2005 - 12 -
4.3.4 Multimode fibres
Under consideration.
4.4 Drinking water pipe cable constructions
4.4.1 Cable for installation within sub-ducts (previously installed within the
drinking water 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
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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4.4.2 Cable for direct installation into the drinking water pipes
Characteristics EN 60794-3 Family Test methods Remarks
subclause requirements
(9) (10) (11) (12) (13)
Lay-up 7.2 Acc. to DS Visual inspection
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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CLC/TS 50431:2005 - 14 -
4.4.3 Sub-duct construction
Characteristics EN 60794-3 as Family Test methods Remarks
applicable requirements
Clause (11)
(9) (10) (12) (13)
Material(s)
Sub-duct inner diameter Acc. to DS EN 60811-1-1
Sub-duct outer diameter Acc. to DS EN 60811-1-1
- Inner tube (if any):
- tube wall thickness
Moisture barrier (if any):
under consideration
- metallic tapes
Additional outer sheath (if any):
- thickness
Conduit length Under
consideration
4.5 Installation and operating conditions
4.5.1 Tests applicable to cables / cable elements
Characteristics EN 60794-3 Family Test methods Remarks
subclause requirements
(9) (10) (11) (12) (13)
General requirements 8.1 Agreement between
user and
Tests applicable to loose
manufacturer
tubes:
Bend test 8.2.1.2 Acc. to DS EN 60794-1-2
method G1
Tube kinking 8.2.2.1 Acc. to DS EN 60794-1-2
method G7
Tests applicable to ribbons:
- dimensions 8.2.3.1 EN 60794-3 EN 60794-3
Table 1 subclause 8.2.3.1
- separability of individual 8.2.3.2.1 EN 60794-3 EN 60794-1-2
fibres from ribbon subclause 7.2.3.2.1 method G5
or acc. to DS or acc. to DS
- ribbon stripping 8.2.3.2.2 Acc. to DS
- torsion 8.2.3.2.3 Acc. to DS EN 60794-1-2
method G6
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4.5.2 Installation conditions
Under consideration.
4.6 Mechanical and environmental tests
4.6.1 Sub-ducts
4.6.1.1 Tests applicable
Tests listed in the following table are those relevant to EN 60794-3 as applicable for sub-ducts.
Characteristics EN 60794-3 Family Test methods Remarks
subclause requirements
(9) (10) (11) (12) (13)
Tensile performance 9.1 4.6.1.2.2 and EN 60794-1-2 See 5.6.2.1
acc. to DS method E1A and E1B
Installation capability 9.2
(selection from the
following)
- bending under 9.2.1 Acc. to DS EN 60794-1-2
tension method E18
- repeated bending 9.2.2 EN 60794-1-2
method E6
- impact 9.2.3 4.6.1.2.5 EN 60794-1-2
method E4
- kink 9.2.4 Acc. to DS and EN 60794-1-2
4.6.1.2.3 method E10
- torsion 9.2.5 EN 60794-1-2
method E7
Sub-duct bend 9.3 Acc. to DS EN 60794-1-2 See 5.6.2.5
method E11
Crush 9.4 Acc. to DS and EN 60794-1-2 See 5.6.2.6
4.6.1.2.4 method E3
Flexibility 4.6.1.2.6
Ageing 9.6
- finished conduit 9.6.2 Under
consideration
Pressure Acc. to DS and
4.6.1.2.1
Induced voltage 9.9 Under Draft IEC 62305-1
(for tubes with metallic consideration
elements)
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CLC/TS 50431:2005 - 16 -
4.6.1.2 Details of family requirements and test conditions for sub-ducts
Tests shall be selected from those of 4.6.1.1 and the following hereinafter described.
4.6.1.2.1 Pressure
a) Family requirements
Under visual examination, without magnification, there shall be no damage to the conduit.
b) Test conditions
Method: under consideration
All conduits shall resist an air pressure of at least [2,5 x the installation pressure] at a
temperature of 20 °C for a period of 0,5 hours.
Additionally, the same performance shall be demonstrated after a sample of conduit has
been maintained at 60 °C for a period of 12 weeks.
All conduits shall resist a proof test pressure of at least [1,3 x the installation pressure] at a
temperature of 20 °C for a period of 24 hours, after tensile and bending tests.
4.6.1.2.2 Tensile performance
a) Family requirements
Under visual examination without magnification there shall be no damage and the diameter
shall not change by more than x %
...
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