DNVGL-CP-0403

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The electronic pdf version of this document, available free of charge
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DNV GL AS
CLASS PROGRAMME
Type approval
DNVGL-CP-0403 Edition December 2015
Data communication cables - category
cables
FOREWORD
DNV GL class programmes contain procedural and technical requirements including acceptance
criteria for obtaining and retaining certificates for objects and organisations related to
classification.
© DNV GL AS December 2015
Any comments may be sent by e-mail to rules@dnvgl.com
This service document has been prepared based on available knowledge, technology and/or information at the time of issuance of this
document. The use of this document by others than DNV GL is at the user's sole risk. DNV GL does not accept any liability or responsibility
for loss or damages resulting from any use of this document.
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CHANGES – CURRENT
This is a new document.
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CONTENTS
Changes – current...................................................................................................... 3
Section 1 General....................................................................................................... 5
1 Introduction............................................................................................5
2 Documentation........................................................................................5
Section 2 Product requirements................................................................................. 7
1 Design requirements.............................................................................. 7
2 Test requirements.................................................................................. 8
Section 3 Test requirements...................................................................................... 9
1 General................................................................................................... 9
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SECTION 1 GENERAL
1 Introduction
1.1 Objective
The objective of this class programme (CP) is to describe the type approval (TA) scheme for data
communication cables/category cables.
For a description of the Society's type approval scheme in general and further information on general
conditions and procedures for obtaining the Society's TA certificate, see the Society's document DNVGL CP
0338Type approval scheme.
The procedures and requirements described in this CP are applicable for obtaining the Society's TA certificate
based on requirements given in:
— DNV GL rules for classification - Ships RU SHIP Pt.4 Ch.8 Electrical installations
— DNV GL offshore standardOS D201 Electrical installations.
Guidance note:
This class programme is not applicable for obtaining EU marine equipment directive (MED) certificates. Visit www.dnvgl.com for
information on MED certification.
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1.2 Scope
This CP gives a description of the procedures and requirements related to documentation, design and type
testing applicable for TA of data communication cables/category cables.
This CP does not set the design requirements to the data communication cables/category cables. TA is based
on compliance with design requirements given in the rules and/or other regulations and standards. The CP
describes the applicable design requirements and how to document compliance with the requirements in
order to obtain a TA certificate for the equipment. This includes, where relevant, technical requirements for
how the type tests shall be performed.
1.3 Application
RU SHIP Pt.4 Ch.8 require that data communication cables/category cables are type approved by the Society,
and TA in accordance with this CP is thus mandatory for equipment to be installed on DNV GL classed
vessels.
A TA certificate in accordance with this CP will confirm compliance with the requirements in the rules as
specified in [1.1]. The TA certificate will not confirm compliance with requirements in other parts of the rules.
In case additional requirements in other parts of the rules shall be covered by the TA certificate, this shall be
specified in the application for TA and will be stated in the TA certificate.
2 Documentation
For TA of data communication cables/category cables the following documentation shall be submitted:
1) data sheet(s)
2) main drawings of all different cable construction comprised by the type approval, showing conductors
and the different layers
3) references to design standards, rules, specifications etc.
4) specification of applied material
5) test results (from tests already carried out, if any).
www.dnvgl.com
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6) applicant’s proposal to type test and routine test
7) documentation of reliability and endurance on board ships and mobile offshore units, if any
8) special operational limitations
9) field of application
10) list of the cables covered by the type approval giving the following information for each variant:
— number of pairs
— conductor cross-section (mm2) and number of strands
— max pulling forces (N)
— sheath thickness (mm)
— braiding wire diameter (mm)
— overall maximum and minimum diameter (mm).
11) construction details:
— conductors: Class 1 or class 2. Stranded plain or tinned copper
— sheath material: SHF1, SHF2
— metal covering: Braid or armour made of plain or tinned copper.
12) special properties, if any (watertight, fire resistance, etc.)
13) test programme, which as a minimum includes the elements for type testing. The test programme shall
refer to the relevant standards for each test.
14) application for type approval form 90.01a.
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SECTION 2 PRODUCT REQUIREMENTS
1 Design requirements
1.1 General requirements
The data communication cables shall comply with the relevant requirements of the following publications in
its latest edition including amendments:
— DNV GL Rules for Classification RU SHIP Pt.4 Ch.8
— DNV GL Offshore standardsOS D101
— IEC 61156-1 Multicore and symmetrical pair/quad cables for digital communications - Part 1: Generic
specification
— IEC 61156-5: Multicore and symmetrical pair/quad cables for digital communications - Part 5:
Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz-horizontal floor wiring -
Sectional specification
— IEC 61156-6:2010+AMD1:2012 CSV: Multicore and symmetrical pair/quad cables for digital
communications - Part 6: Symmetrical pair/quad cables with transmission characteristics up to 1 000 MHz
- Work area wiring - Sectional specification
— IEC 60092-350: Shipboard power cables – General construction and test requirements
— IEC 60092-360: Sheathing material for shipboard power and telecommunication cables.
1.2 Special properties
— IEC 60332-1-2, Part 1-2: Test on a vertical flame propagation for a single insulated wire or cable –
Procedure for 1 kW pre-mixed flame
— IEC 60332-2-1, Tests on electric and optical fiber cables under fire conditions - Part 2-1: Test for vertical
flame propagation for a single small insulated wire or cable - Apparatus
— IEC 60332-2-2, Tests on electric and optical fiber cables under fire conditions - Part 2-2: Test for vertical
flame propagation for a single small insulated wire or cable - Procedure for diffusion flame
— IEC 60332-3-10, Tests on electric and optical fiber cables under fire conditions - Part 3-10: Test for
vertical flame spread of vertically-mountedbunched wires or cables - Apparatus
— IEC 60332-3-24, Part 3-24: Test for vertical flame spread of vertically-mounted bunched wires or cables –
Category C
— IEC 60332-3-25, Part 3-25: Test for vertical flame spread of vertically-mounted bunched wires or cables –
Category D
— IEC 60754-1, Test on gases evolved during combustion of materials from cables - Part 1: Determination of
the amount of halogen acid gas
— IEC 60754-2, Test on gases evolved during combustion of materials from cables - Part 2: Determination
of degree of acidity of gases evolved during the combustion of materials taken from electric cables by
measuring pH and conductivity
— IEC 61034-2, Measurement of smoke density of cables burning under defined conditions - Part Two: Test
procedure and requirements.
1.3 Sheath dimension
The nominal sheath thickness (Dt) is defined as follows:
Sheath thickness Dt = 0,04·Df + 0,5 mm with a minimum thickness of 0,7 mm.
Df is the diameter under the sheath.
The mean value of the thickness, and the thickness at any point, shall satisfy the descriptions given in 7.6.2
of IEC 60092-350.
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2 Test requirements
The testing is divided into:
— Visual inspection
— Electrical/mechanical tests.
2.1 Visual inspection
By visual inspection, it is to be verified that the test sample is in conformity with the approved plans.
2.2 Electrical/mechanical tests
The tests are to be according to the relevant parts of the following Sec.3 Table 1.
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SECTION 3 TEST REQUIREMENTS
1 General
Table 1 Table of tests
No. Test Test basis Requirements TT RT
Mandatory
General properties
1 Visualinspection
Material free of cracks, splits, irregularities, foreign
material and marking X X
2 Dimensions
IEC 811-1-1
IEC 60092-350
Outer sheath thickness X X
Electrical characteristics and tests:
3 Conductorresistance IEC 61156-5 6.2.1 The maximum value shall be ≤ 9,5Ω/100 m. X X
4
Conductor
resistance
unbalance
within pair
IEC 61156-5
6.2.2.1 ≤ 2% X X
Dielectric strength;
DC [kV] AC kV] time
1,0 0,7 1 min
2,5 1,7 2 sec
5
Dielectric
strength
conductor/
conductor
and conductor/
screen
IEC 61156-5 6.2.3
One of the above AC or DC for one of the given times.
X X
6
Insulation
resistance
conductor/
conductor
and conductor/
screen
IEC 61156-5 6.2.4 ≥ 5000 MΩ·m using test voltage between 100V and500V d.c. at 20°C X
7
Capacitance
unbalance pair
to ground
IEC 61156-5 6.2.6 ≤ 1600 pF/km at a frequency 800Hz or 1000Hz. X X
For screened cables two grades of transfer impedance
can be chosen
Max. surface transfer impedance
MΩFrequency
MHz
Grade 1 Grade 2
1 10 50
8 Transferimpedance
IEC 61156-5
6.2.7
10 10 100
X
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No. Test Test basis Requirements TT RT
30 30 200
100 100 1000
When measured using absorbing clamp method (IEC
62153-4-5) or the triaxial method (IEC 62153-4-9)
requirements table below shall be fulfilled.
Coupling
attenuation
type
Frequency range Couplingattenuation dB
Type I 30 to 100 >85
Type I 100 to 1000 >85-20·log10(f/100)
Type Ib 30 to 100 >70
Type Ib 100 to 1000 >70-20·log10(f/100)
Type II 30 to 100 >55
Type II 100 to 1000 >55-20·log10(f/100)
Type III 30 to 100 >40
9 Couplingattenuation
IEC 61156-5
6.2.8
Type III 100 to 1000 >40-20·log10(f/100)
X
Transmission characteristics
10
Phase and
differential
delay(delay
skew)
IEC 61156-5 6.3.2
Phase Delay (ns/100m):
a ≤ 534 + 36 / √f
4MHz ≤ f ≤ max reference frequency
X
11
Differential
delay (delay
skew)
IEC 61156-5
6.3.2.1
Differential delay between any two pair:
≤ 25 ns/100 m for cables with designed to be tested for
less than 500 MHz (i.e. cat5e, cat6 and cat6A)
≤ 45 ns/100 m for cables with designed to be tested for
frequencies above 500 MHz (i.e. cat7 and cat7A)
Test to be carried out 4MHz ≤ f ≤ max reference
frequency
X
Max attenuation α in(dB/100m)
α ≤ a · √f + b · f + c / √f,
ConstantsCable
designation
Frequency
range a b c
Cat 5e
4 -
100MHz 1,967 0,023 0,10
12 Attenuation IEC 61156-56.3.3.1/6.3.3.2
Cat 6 4 -250MHz 1,820 0,0169 0,25
X X
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No. Test Test basis Requirements TT RT
Cat 6A
4 -
500MHz 1,820 0,0091 0,25
Cat 7 4 -600MHz 1,800 0,010 0,20
Cat 7A 4-1000MHz1,800 0,005 0,25
Cat5 special consideration:
a:1,910, b:0,0222, c:0,200
Attenuation shall be documented with graphs.
In order to justify marine requirements an ambient
temperature of 45ºC shall be satisfied. To be calculated
according to point 6.3.3.3.
13
Unbalance
Attenuation
(transverse
conversion
loss;
TCL)
IEC 61156-5
6.3.4
Choose between;
level1: measured TCL ≥ 40,0 – 10 log10(f)
level2: measured TCL ≥ 50,0 – 10 log10(f)
Measuring range:
1 – 100 MHz for cat 5e and from
1 – 250 MHz for all other categories.
Near End Unbalance Attenuation
(EL TCL
Measured ELTCL ≥ 35 – 20 × log10 (f),
in the given frequency range of
1 to 30 MHz for all cables
X
Worst pair PS NEXT shall not be less than;
PSNEXT(f)=PSNEXT(1) - 15·log10 (f)
Cable
designation Frequency range
PSNEXT(1)
dB
Cat 5e 4 - 100MHz 62,3
Cat 6 4 - 250MHz 72,3
Cat 6A 4 - 500MHz 72,3
Cat 7 4 - 600MHz 99,4
Cat 7A 4 - 1000MHz 102,4
14
Power sum
Near-end
Crosstalk
(PS NEXT)
IEC 61156-5
6.3.5
For those frequencies where the calculated value of
PSNEXT(1) is higher than 75dB, the requirement shall
be 75dB.
Pair to pair result shall be at least 3 dB better than the
required results for PS NEXT for any pair.
Values ref 100 m length cable.
Graph showing results to be provided.
X X
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No. Test Test basis Requirements TT RT
Worst pair PS EL FEXT shall not be less than;
PSELFEXT(f ) = PSELFEXT(1) – 20·log10 (f )
Cable
designation Frequency range
PSELFEXT(1)
dB
Cat 5e 4 - 100MHz 61,0
Cat 6 4 - 250MHz 65,0
Cat 6A 4 - 500MHz 65,0
Cat 7 4 - 600MHz 91,0
Cat 7A 4 - 1000MHz 92,3
15
Power sum
equal level far-
end crosstalk2)
(ELFEXT)
IEC 61156-5
6.3.6
For those frequencies where the calculated value of
PSELFEXT(1) is higher than 75dB, the requirement shall
be 75dB.
Pair to pair result shall be at least 3 dB better than the
required results for PS EL FEXT for any pair.
Values ref. to 100m length cable.
Graph showing results to be provided.
X
For type III screened cables.
Cable
category Frequency range MHz
Return loss
dB
Cat 6A 1 ≤ f ≤ 500
92,5–15 × log10
(f)
Cat 7A 1 ≤ f ≤ 1000
107,5–15 × log10
(f)
16
Alien
(exogenous)
near-end cross
talk(ANEXT)
IEC 61156-5
6.3.7
Type I and type II are proven by design, and need not
be tested according to this table.
Max value Cat 6Aand Cat 7A: 67,5 dB
X
For unscreened cables.
Cable
category Frequency range MHz
Return loss
dB
Cat 6A 1 ≤ f ≤ 500
78,2–20 × log10
(f)
Cat 7A 1 ≤ f ≤ 1000
93,2–20 ×log10
(f)
17
Alien
(exogenous)
far-end cross
talk (AFEXT)
IEC 61156-5
6.3.8
Type I and type II are proven by design, and need not
be tested according to this table.
Max value Cat 6A and Cat 7A: 67,5 dB
X
 
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No. Test Test basis Requirements TT RT
18 Impedance IEC 61156-5 6.3.10
Chose Case A (Fitted or mean characteristic
impedance):
Item to be measured; return loss to be included:
100 ± 5 Ω, 120 ± 5 Ω, at 100 MHz; f.f.s
Chose Case B (Characteristic impedance):
The impedance measured in accordance with 6.3.10.1.1
of IEC 61156-1 shall fall within the impedance template
limits given based on the two equations below. For the
correspondingcable category, frequency range and
return loss requirement given in Table Return Loss see
clause Return Loss
Zu = Z0· (1+|r|) / (1-|r|), upper limit
Zl = Z0· (1-|r|) / (1+|r|), lower limit
r = 10 ^(RL/20), where RL is the return loss, as defined
in next point.
Cables that meet the requirements of case B are not
required to be measured for return loss; alternately
cables that meet the return loss requirements
given in 6.3.11 are not required to be measured for
characteristic impedance.
X
The return loss for any pair shall not be stated less than
Cable category
Frequency
range
MHz
Return loss
dB
All 4 – 10 20,0 + 5,0·log10(f)
All 10 – 20 25,0
Cat 5e
20 – 100 25,0 – 7,0·log10
(f /20)
Cat 6 20 – 250 25,0 – 7,0·log10(f /20)
Cat 6A
20 – 500 25,0 – 7,0·log10
(f /20) (*)
Cat 7 20 – 600 25,0 – 7,0·log10(f /20) (*)
Cat 7A
20 – 600 25,0 – 7,0·log10
(f /20) (*)
600 –
1000
17,3 – 10·log10
(f /600)
19 Return Loss IEC 61156-5 6.3.11
(*) calculated values below 17,3 dB revert to a 17,3 dB
plateau.
This item may be left out if Case B Characteristic
impedance is tested.
Graph showing results to be provided.
X
 
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No. Test Test basis Requirements TT RT
Mechanical properties
20
Conductor
elongation at
break
EN 50289-3-2
IEC 61156-5
6.4.2
EN 50288-1
5.2.1
≥8% for IEC req
≥10% for EN req
X
21
Shrinkage of
insulation
EN 50289-3-4
IEC 61156-5
6.5.1
≥5%, tested at 100ºC±2 for 1 h. Length of sample sahll
be more than 150mm , shrink back to be measured as
the sum from both ends.
X
22
Crush
resistance of
the cable
EN 50289-3-5
IEC 61156-1 & -5
6.4.8/
IEC 62012-1
3.3.6
Minimum force 1000N for 1 min with a 100 mm area.
Return Loss and Characteristic Impedance shall remain
within the specified limits X
23
Impact
resistance of
the cable
EN 50289-3-6
IEC 61156-1
6.4.9
IEC 60811-1-4
8.5
12.5mm radius/1J/3 impacts at 1m from the measured
end.
Return Loss and Characteristic Impedance shall remain
within the specified limits
X
24
Abrasion
resistance of
the sheath
markings
IEC 61156-5
Marking shall be legible.
X
25
Single bend
test U bend
test IEC 61156-1
6.4.10.3.1
Single Bend
4xdia/10 turns/2 cycles
Near end Crosstalk, Return Loss and Characteristic
Impedance and Coupling Attenuation (u/c) shall remain
within the specified limits
X
26
Simulated
installation
testing of the
cable
EN 50288-1 5.2.6.2
IEC61156-1
EN 50289-3-9
Clause 8
“S” Bend
8xdia/100m/1 cycle/120 deg/1 m/s
Near end Crosstalk, Return Loss and Characteristic
Impedance and Coupling Attenuation (u/c) shall remain
within the specified limits
X
27
Tensile
performance
EN 50289-3-16
Combined with
5.2.6
EN 50288-1
5.2.7
Load shall be 25N per pair (i.e.100N 4 Pair).
Near end Crosstalk, Return Loss and Characteristic
Impedance and Coupling Attenuation (u/c) shall remain
within the specified limits
X
28
Test for flame
propagation for
a single small
insulated wire
or cable
IEC 60332-1
All cables installed in ships shall be tested according to
IEC-60322-1 minimum flame-retardant requirements
X
Optional tests
29 Mutualcapacitance IEC 61156-5 6.2.5 According to datasheet X X
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No. Test Test basis Requirements TT RT
30
Current
carrying
capacity
IEC 61156-5 6.2.9 According to datasheet
31 Velocity ofpropagation IEC 61156-5 6.3.1 According to datasheet
32
Cold bend
performance of
the cable
EN 50289-3-9
EN 50288-1 5.3.1
Mandrel diameter 8 X OD,
No of turns: 4, Temp -20˚C±2˚C
No cracks when examined visually without
magnification –
minimum installation temperature to be given.
X
33 Bending undertension According to specification. X
34
Tensile
strength of
insulation
IEC 61156-5&-1
6.4.3
According to specification. X
35 Ozoneresistance
IEC 60092-350 IEC
60811-2-1 For SHF2 only X
36
Test for flame
propagation for
a single small
insulated wire
or cable
IEC 60332-2-1,
IEC 60332-2-2
X
37
Test for flame
propagation
bunched wires
or cables
IEC 60332-3-10, X
38
Flame
retardance test
on bunched
wires or cables
IEC 60332-3-24 or
IEC 60332-3-25
X
39
Test on gases
evolved during
combustion of
materials from
cables
IEC 60754-1 or
IEC 60754-2
IEC60754-1 is considered to be Low Halogen content.
IEC60754-2 is considered to be Halogen free
All non-metallic materials in cable shall be tested.
X
40
Measurement
of smoke
density of
cables burning
under defined
conditions
IEC 61034-1,
IEC 61034-2
X
TT = Type Test
RT = Routine Test
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	CONTENTS
	Changes – current
	Section 1 General
	1 Introduction
	2 Documentation
	Section 2 Product requirements
	1 Design requirements
	2 Test requirements
	Section 3 Test requirements
	1 General