HD 620 S1:1996/A2:2003

SLOVENSKI STANDARD
01-januar-2004
Amendment 2 to HD according to maintenance programme - Group 2
Distribution cables with extruded insulation for rated voltages from 3,6/6 (7,2) kV to
20,8/36 (42) kV
Energieverteilungskabel mit extrudierter Isolierung für Nennspannungen von 3,6/6 (7,2)
kV bis 20,8/36 (42) kV
Câbles de distribution, à isolation extrudée, pour des tensions assignées de 3,6/6 (7,2)
kV à 20,8/36 (42) kV inclus
Ta slovenski standard je istoveten z: HD 620 S1:1996/A2:2003
ICS:
29.060.20 Kabli Cables
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

HARMONIZATION DOCUMENT HD 620 S1/A2
DOCUMENT D'HARMONISATION
HARMONISIERUNGSDOKUMENT August 2003

ICS 29.060.20
English version
Distribution cables with extruded insulation
for rated voltages from 3,6/6 (7,2) kV to 20,8/36 (42) kV

Câbles de distribution, à isolation Energieverteilungskabel mit extrudierter
extrudée, pour des tensions assignées Isolierung für Nennspannungen
de 3,6/6 (7,2) kV à 20,8/36 (42) kV inclus von 3,6/6 (7,2) kV bis 20,8/36 (42) kV

This amendment A2 modifies the Harmonization Document HD 620 S1:1996; it was approved by
CENELEC on 2003-03-01. CENELEC members are bound to comply with the CEN/CENELEC Internal
Regulations which stipulate the conditions for implementation of this amendment on a national level.

Up-to-date lists and bibliographical references concerning such national implementation may be obtained on
application to the Central Secretariat or to any CENELEC member.

This amendment exists in one official version (English).

CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, 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

© 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. HD 620 S1:1996/A2:2003 E

Page 0-2
FOREWORD
This amendment to HD 620 S1:1996 has been prepared by WG 9 of CENELEC TC 20 "Electric cables".
CENELEC TC 20 confirmed at its meeting (Paris, May 2001) that the amendment should go to the Unique
Acceptance Procedure.
Some detailed amendments are made to Part 1. A list of additions and amendments to the particular sections
of Parts 5 to 9 is given in this Part 0.

The text of the draft was submitted to the Unique Acceptance Procedure in June 2002 and was approved by
CENELEC as amendment A2 to HD 620 S1:1996 on 2003-03-01.

The following dates were fixed:

- latest date by which the existence of the amendment
has to be announced at national level (doa) 2003-09-01

- latest date by which the amendment has to be implemented
at national level by publication of a harmonized
national standard or by endorsement (dop) 2004-03-01

- latest date by which the national standards conflicting
with the amendment have to be withdrawn (dow) 2006-03-01

Page 0-3
Contents
(HD 620 S1:1996 plus amendments A1 and A2)

(2) (5)
PART 1 General requirements
(3)
PART 3 (Spare)
(3)
PART 4 (Spare)
PART 5 XLPE insulated single core cables, and single core pre-assembled cables
(5)
5-A Cables with PE (Type 5A-1) or PVC sheath (Type 5A-2)
(1) (5)
5-B Cables with PE (Type 5B-1) or PVC sheath (Type 5B-2)
(2) (5)
5-C Cables with PE (Type 5C-1) or PVC sheath (Type 5C-2)
5-D Cables with PE (Type 5D-1) or PVC sheath (Type 5D-2)
(2) (5)
5-E-1 Cables with polyolefine compound sheath (Type 5E-1)
5-E-2 Bundle assembled cables with steel messenger core for overhead distribution and service
MV (Type 5E-3)
(6)
5-F Cables with aluminium conductors and PVC sheath (Type 5F-1), cables with aluminium
conductors and PE sheath, laid-up (Type 5F-2),
cables with aluminium conductors and PE sheath, laid-up around a bare-earth conductor
(Type 5F-3), cables with aluminium conductors and PE sheath, laid-up around a steel
messenger (Type 5F-4) and cables with copper conductors and PVC sheath (Type 5F-5)
(6)
5-G-1 Cables with PVC sheath
(8)
5-G-2 Cables with PVC or PE sheath
5-H Cables with PE sheath (Type 5H)
(2) (6)
5-J Cables with PE (Type 5J-1) or PVC sheath (Type 5J-2) or PVC flame retardant sheath
(Type 5J-3)
(6)
5-K Cables with PE (Type 5K-1) or PVC sheath (Type 5K-2)
(2)
5-L Cables with PVC sheath, laid-up (Type 5L-1) or not (Type 5L-2) around an additional
conductor
(1) (6)
5-M Cables with PE sheath (Type 5M-1) and PVC sheath (Type 5M-2)
(1)
5-N Cables with PE sheath (Type 5N-1) or PVC sheath (Type 5N-2)
(1)(7)
5-O-1 (Spare)
(1)(7)
5-O-2 (Spare)
(3)
5-O-3 (Spare)
(1)(7)
5-O-4 (Spare)
(1)(7)
5-O-5 (Spare)
(1)(7)
5-O-6 (Spare)
(8)
5-O-7 Single core, 11 kV and 33 kV, XLPE insulated cables with copper wire screen and MDPE
oversheath (Type 5O-7)
(8)
5-O-8 Single core, 33 kV, XLPE insulated cables with lead alloy sheath and MDPE oversheath
(Type 5O-8)
(8)
5-O-9 Single core 33 kV, XLPE insulated cables with copper wire screen, copper foil sheath and
MDPE oversheath (Type 5O-9)
(1)
5-P Cables with PVC sheath laid-up around an earth conductor (Type 5P-1 and
Type 5P-2), cables with PVC sheath laid around a messenger (Type 5P-3)

_______________
(1) A1 introduces some changes to the text
(2) A1 completely revises the particular section
(3) Item withdrawn by A1
(4) A1 introduces new section
(5) A2 introduces some changes to the text
(6) A2 completely revises the particular section
(7) Item withdrawn by A2
(8) A2 introduces new section
Page 0-4
PART 6 XLPE insulated three core cables

(5)
6-A Cables with PE (Type 6A-1) or PVC sheath (Type 6A-2)
(2) (5)
6-C Cables with PE (Type 6C-1) or PVC sheath (Type 6C-2)
6-D Cables with PE (Type 6D-1) or PVC (Type 6D-2) sheath
(6)
6-F Cables with PVC sheath and individual copper screen (Type 6F-1),
cables with PE sheath and individual copper screen (Type 6F-2) and
cables with PE sheath and common copper screen (Type 6F-3)
(2) (6)
6-J Cables with PE (Type 6J-1) or PVC sheath (Type 6J-2) or PVC flame retardant sheath
(Type 6J-3)
(6)
6-K Cables with PE (Type 6K-1) or PVC sheath (Type 6K-2)
(1) (6)
6-M Cables with PE sheath (Type 6M-1) and PVC sheath (Type 6M-2)
(1)
6-N Cables with PE sheath (Type 6N-1) or PVC sheath (Type 6N-2)
(1) (7)
6-O-1 (Spare)
(1) (7)
6-O-2 (Spare)
(1) (7)
6-O-3 (Spare)
(8)
6-O-4 Three core, 11 kV XLPE insulated cables with copper or steel wire collective metal screen
and MDPE oversheath (Type 6O-4)

PART 7 EPR insulated single core cables, and single core pre-assembled cables

(2)(5)
7-E-1 Cables with polyolefine compound sheath (Type 7E-1)
7-E-2 Bundle assembled cables with steel messenger core for overhead distribution and service
MV (Type 7E-2)
(2)
7-I Cables with PVC sheath (Type 7I)
(1)
7-N Cables with PE sheath (Type 7N-1) or PVC sheath (Type 7N-2)
(1)(7)
7-O-1 (Spare)
(3)
7-O-2 (Spare)
(1)(7)
7-O-3 (Spare)
(1)(7)
7-O-4 (Spare)
(8)
7-O-5 Single core, 11 kV and 33 kV, EPR insulated cables with copper wire screen and MDPE
oversheath (Type 7O-5)
PART 8 EPR insulated three core cables

(2)
8-I Cables with PVC sheath (Type 8I)
(1)
8-N Cables with PE sheath (Type 8N-1) or PVC sheath (Type 8N-2)
(1)(7)
8-O-1 (Spare)
(1)(7)
8-O-2 (Spare)
PART 9 HEPR insulated single core cables, and single core pre-assembled cables

(4) (5)
9-E Cables with HEPR insulation and polyolefine compound sheath (Type 9E)
(2)
9-I-1 Cables with HEPR insulation, PE sheath and Alumoweld messenger (Aerial cables,
Type 9I-1)
9-I-2 Cables with HEPR insulation and PVC sheath, single core and pre-assembled type
(Type 9I-2)
_______________
(1) A1 introduces some changes to the text
(2) A1 completely revises the particular section
(3) Item withdrawn by A1
(4) A1 introduces new section
(5) A2 introduces some changes to the text
(6) A2 completely revises the particular section
(7) Item withdrawn by A2
(8) A2 introduces new section
Page 1-0
Part 1
Distribution cables with extruded inxulation for rated voltages
from 3,6/6 (7,2) kV to 20,8/26 (42) kV
Part 1: General requirements
Replace pages 1-18, 1-26, 1-29, 1-31, 1-32 and 1-33 (as amended by A1:2001) by the following:

Page 1-18
HD 620 S1:1996/A1:2001
Part 1
Table 2B – Requirements of insulating compounds – EPR (concluded)
1 2 3 4 5 6
(1)
Compound No. Unit DIE 3 DIE 4 DIE 5 DIE 6
Type EPR EPR EPR EPR
insulation insulation insulation insulation
Maximum operating temperature of the conductor ºC 90 90 90 90
Physical and chemical properties
hot set test
temperature ºC 250 250 250 250
duration min 15 15 15 15
mechanical stress MPa 0,2 0,2 0,2 0,2
maximum elongation under load % 175 175 175 175
maximum residual elongation % 15 15 15 15
hot modulus
duration min - 15 - -
temperature ºC - 130 - -
minimum strength at 100% MPa - 1,75 - -
water absorption
temperature ºC 85 70 100 100
duration h 336 336 24 24
a) maximum variation of mass mg/cm 5 0,8 3 3

b) with DC voltage: no breakdown
insulation resistance Ki (min. value)
at 20ºC 3670 - 3670 3670
MΩ.km
at 60ºC - - - -
MΩ.km
at 70ºC MΩ.km - - - -
at 90ºC MΩ.km 3,67 - 3,67 3,67

ozone resistance test
duration h 24 24 30 24
concentration of ozone ppm 250 to 300 250 to 300 250 to 300 250 to 300
temperature ºC
(1)
The applicable test methods for each compound are given in the relevant Particular Section.
NOTE 1 MPa = 1 N/mm
Remark: The tolerance on temperature values is given in HD 605, 1.5.2, but may be varied if specified in the particular
sections.
Page 1-26
Part 1
Table 4A – Requirements of sheathing compounds : PVC (continued)
1 2 9 10 11 12 13 14 15
(1)
Compound No Unit DMV 26 DMV 28 DMV 29 DMV 30 DMV 31 DMV 32 DMV 33
PVC sheath PVC sheath PVC sheath PVC sheath PVC sheath PVC sheath PVC sheath
Type
Maximum operating temperature of the conductor ºC 90 90 90 90 90 90 90
Physical and chemical properties
loss of mass
duration h 168 168 168 168 168 168 -
temperature ºC 100 100 100 100 100 100 -
maximum loss of mass mg/cm 1,5 1,5 1,5 1,5 1,5 1,5 -
pressure test at high temperature
duration h 6 6 6 6 4/6 4/6 4/6
temperature ºC 80 90 90 90 90 80 80
coefficient k - 0,7 0,7 0,7 - 0,6/0,7 0,8
maximum depth of indentation % 50 50 50 50 50 50 50
heat shock test
duration h 1 1 1 1 1 1 -
temperature ºC 150 150 150 150 150 150 -
tests at low temperature
elongation test at low temperature
temperature ºC -15 -15 -15 -15 -15 -25 -5
minimum elongation % 20 20 20 20 20 20 20
impact test at low temperature
temperature ºC -15 -15 -15 -15 -15 -25 -
bending test at low temperature
temperature ºC - -15/-25 - - -15 - -5

Page 1-29
Part 1
Table 4B – Requirements of sheathing compounds : PE (continued)
1 2 3 4 5 6 7 8
(1)
Compound No Unit DMP 2 DMP 5 DMP 8 DMP 9 DMP 10 DMP 11
Type PE sheath PE sheath PE sheath PE sheath PE sheath PE sheath
Maximum operating temperature of the conductor ºC 90 90 90 90 90 90
Physical and chemical properties
pressure test at high temperature
duration h 4/6 6 6 6 6 1
temperature ºC 115 115 115 115 90 115
coefficient k - - - 0,8 0,7 -
maximum depth of indentation % 30 50 30 30 50 30
shrinkage test
duration h - - 5 x 5 5 x 5 - -
temperature ºC - - 80 80 - -
maximum shrinkage % - - 7 - - -
mm - - - 7 - -
tests at low temperature
elongation test at low temperature
temperature ºC - - - - -20 -
minimum elongation % - - - - 20 -
impact test at low temperature
temperature ºC - - - - -20 -
bending test at low temperature
temperature ºC - - - - -20 -
carbon black content % 2,5 ± 0,5 - 2,5 ± 0,5 2,5 ± 0,5 ≥ 2,0 ≥ 2,0
shore D-hardness
minimum 55 - 55 - - 55
Page 1-31
Part 1
Table 4B – Requirements of sheathing compounds : PE
1 2 10 11 12 13 14 15 16
(1)
Compound No Unit DMP 12 DMP 13 DMP 14 DMP 15 DMP 16 DMP 17 DMP 18
Type PE sheath PE sheath PE sheath PE sheath PE sheath PE sheath PE sheath
Maximum operating temperature of the conductor ºC 90 90 90 90 90 90 90
Mechanical properties
- before ageing on sample
minimum tensile strength MPa 10 15 10 12,5 12,5 10,5 12,5
minimum elongation at break % 300 350 300 300 300 300 300
- after ageing on sample
temperature ºC 100 110 100 110 110 100 110
duration T1 h 240 336 240 336 336 240 240
minimum tensile strength MPa - 15 - - - - -
maximum variation T1/T0 % - ±25 - - - - -
minimum elongation at break % 300 350 300 300 300 300 300
maximum variation T1/T0 % - ±25 - - - - -
- after ageing on complete cable (non contamination
test)
temperature ºC 100 100 100 100 100 - 100
duration T1 h - - - - - - 336
duration T2 h 168 168 168 168 168 - 1008
minimum tensile strength MPa - 15 - - - - -
maximum variation T2/T0 % - ±25 - - - - ±30
maximum variation T2/T1 % - - - - - - ±20
minimum elongation at break % 300 350 300 300 300 - -
maximum variation T2/T0 % - ±25 - - - - ±40
maximum variation T2/T1 % - - - - - - ±25

Page 1-32
Part 1
Table 4B – Requirements of sheathing compounds : PE (continued)
1 2 10 11 12 13 14 15 16
(1)
Compound No Unit DMP 12 DMP 13 DMP 14 DMP 15 DMP 16 DMP 17 DMP 18
Type PE sheath PE sheath PE sheath PE sheath PE sheath PE sheath PE sheath
Maximum operating temperature of the conductor ºC 90 90 90 90 90 90 90
Physical and chemical properties
pressure test at high temperature
duration h - 6 - 6 4/6 - 6
temperature ºC - 115 - 115 115 - 90
coefficient k - 0,8 -  - 0,7
maximum depth of indentation % - 30 - 50 50 - 50
shrinkage test
duration h - 5 x 5 - - - - 6
temperature ºC - 80 - - - - 105
maximum shrinkage % - - - - - - 4
mm - 7 - - - - 10
tests at low temperature
elongation test at low temperature
temperature ºC -15 - - - - - -
minimum elongation % 20 - - - - - -
impact test at low temperature
temperature ºC -15 - - - - - -
bending test at low temperature
temperature ºC -15/-25 - - - - - -
carbon black content % ≥2,0 - 2,5 ± 0,5 2,5 ± 0,5 - 2,5 ± 0,5 -
shore D-hardness
minimum - - - - - - -
Page 1-33
Part 1
Table 4B – Requirements of sheathing compounds : PE (concluded)
1 2 10 11 12 13 14 15 16
(1)
Compound No Unit DMP 12 DMP 13 DMP 14 DMP 15 DMP 16 DMP 17 DMP 18
Type PE sheath PE sheath PE sheath PE sheath PE sheath PE sheath PE sheath
Maximum operating temperature of the conductor ºC 90 90 90 90 90 90 90
Physical and chemical properties (concluded)
melt index - - - - - LLDPE ≤ 3,0 -
LDPE ≤ 0,4
stress cracking resistance
duration h - ≥1000 - - - * -
UV resistance * - - - - - -
(1)
The applicable test methods for each compound are given in the relevant Particular Section.
Note: 1 MPa = 1 N/mm
* under consideration
Remark: The tolerance on temperature values is given in HD 605, sub-clause 1.5.2, but may be varied if specified in the particular sections.

Page 5-A-0
Part 5 Section A
SECTION A - CABLES WITH PE- (TYPE 5A-1) OR PVC-SHEATH (TYPE 5A-2)

Replace pages 5-A-11 to 5-A-13, and 5-A-16 to 5-A-19 by the following:

Page 5-A-11
Part 5 Section A
3 Test requirements
1 Routine tests
No. Test Requirements * Test method
1 Conductor resistance Subclause 1.4 HD 383
- Sample: HD 605, subclause 3.1.1
(a) manufacturing length
(b) short cable sample from the
manufacturing length
- Conditioning:
For (a): at room temperature
For (b): in tempered water bath
Duration:
For (a):                        min. 12 h
if necessary                        24 h
For (b):                         min. 1 h

2 High voltage test HD 605, subclause 3.2.1
- Sample: manufacturing length No breakdown
- Test voltage:           3,5 U
- Duration of test    5 min per core
3 Partial discharge test IEC 60885-3
- Sample: manufacturing length
≤ 2 pC
- Magnitude of calibrating discharge pulse: 5 pC
- Test voltage:           2,0 U
* According to Section 2 'Design requirements' unless stated otherwise

Page 5-A-12
Part 5 Section A
3 Test requirements (continued)

1)
1 Sample tests
Test Requirements * Test method
No.
1 Construction of conductor Subclauses 1.1 to 1.3 EN 60811-1-1
subclause 8.3
and by inspection
2 Insulation HD 605
- thickness Subclause 3.2 subclause 2.1.11.1
- regularity of thickness Subclause 3.2.4 subclause 2.1.11.1
- extension of irregularities Subclause 3.2.5 subclause 2.1.10.2
3 Core screening
(a) conductor screening HD 605
- thickness Subclause 2.4 subclause 2.1.11.1
- irregularities Subclause 2.5 subclause 2.1.10.2
(b) Insulation screening
- without metallic part HD 605
- thickness Subclause 4.4 subclause 2.1.11.1
4 Diameter over insulation Subclause 3.3 HD 605
subclause 2.1.11.1
5 Roundness of core Subclause 4.5 HD 605
subclause 2.1.11.1
6 Metallic screen
- dimensions wires Subclause 6.5.1 HD 605
- dimensions copper spiral binder tapes Subclause 6.5.2 subclause 2.1.4.2
- clearance between wires Subclause 6.6 subclause 2.1.6.2
D.C. resistance of screen Subclause 6.4 subclause 3.1.1
7 Separation sheath
- thickness Subclause 14.3 EN 60811-1-1
subclause 8.2
8 Metallic armour Subclause 15.1 HD 605
- dimensions subclause 2.1.4.3
9 (Outer) sheath Subclause 10.3 EN 60811-1-1
- thickness subclause 8.2
Outer covering Subclause 16.3
- thickness
10 Outer diameter Clause 13 EN 60811-1-1
subclause 8.3
11 Marking Clause 11 Test by inspection
2)
12 Hot set test of insulation  EN 60811-2-1
Clause 9
- temperature                      200 °C
- tolerance:                         ± 3 °C
- duration                          15 min
- mechanical stress                0,2M Pa
Elongation under load                 max. 175 %
Elongation after cooling                max. 15 %
* According to Section 2 'Design requirements' unless stated otherwise
1) 1)
Refer to of page 5-A-13
Page 5-A-13
Part 5 Section A
3 Test requirements (continued)

1)
2 Sample tests (continued)
Test Requirements * Test method
No.
13 Longitudinal shrinking of PE-sheaths HD 605
≤ 7 mm
subclause 2.4.4.1
14 Regular production monitoring
14.1 Long duration test HD 605, subclause 5.4.15
Sampling:
Ageing duration: 1 year and 2 years

6 samples per year are taken from the
regular production ensuring an appropriate
distribution over the year an over
production lines for each case of ageing
duration (for example 2 sample per
2 month) .
14.2 Determination of residual strength
- a.c. step test
14.3 Description of evaluation method
The evaluation of the test result will be
st nd
taken separately from 1 year to 2 year.

The method begins with the result from the
type test.
With ever subsequent result from the long
duration test the result with the lowest
sample number from the type test or the
oldest result of the long duration test is
excluded.
14.4 Requirements In discussion
* According to Section 2 'Design requirements' unless stated otherwise
1)
Sample tests shall be carried out on 10 % of a manufacturing lot of the same cable type, i.e. at least on one
cable length.
If any sample should fail in any of the sample tests requested it is permitted to choose one or two additional
sample(s) from the same cable length and to submit the additional sample(s) to the test or tests in which the
original sample failed.
The samples shall be taken at least 0,5 m from the cable end(s).
For the resampling procedure the following rules apply:
- Number of samples to be taken as for the first test;
- If for the first test one sample from both cable ends has to be taken, is it deemed sufficient to resample one
additional sample from the cable end the first sample of which failed.
2)
Hot set test shall be carried out as follows:
Manufacturing lot
km Number of
lengths to be
Three stranded Single-core cables
tested
single-core cables
≤ 10 ≤ 20
> 10 ≤ 20 > 20 ≤ 40
> 20 ≤ 30 > 40 ≤ 60
etc.
etc. etc.
Page 5-A-16
Part 5 Section A
3 Test requirements (continued)

1)
3 Type tests (electrical characteristics - continued)

2)
No. Test Requirements Test method
1.7 Long duration test HD 605, subclause 5.4.15

(a) Determination of residual strength for
each test run
- a.c. step test
- nominal value of Weibull
≥ 12 U
O
distribution for each test run

- lowest breakdown value for each

test run
≥ 9 U
O
(b) Water-tree pattern after 2 years
- tree length ≤ 1,0 mm
1)
Type tests include tests classified as routine (R) and sample (S) tests
2)
According to Section 2 'Design requirements' unless stated otherwise

Page 5-A-17
Part 5 Section A
3 Test requirements (continued)

1)
4 Type tests (non-electrical characteristics)

No. Test Requirements Test method
1 Test on insulation HD 620-1
Table 2A, type DIX 8
1.1 Mechanical properties
(a) before ageing EN 60811-1-1,
subclause 9.1
(b) after ageing in air oven EN 60811-1-2,
subclause 8.1
1.2 Water absorption EN 60811-1-3,
≤ 1,0 mg/cm²
subclause 9.2
- Temperature of water bath (85±2)°C
- Duration                   14 d
2 Test on core HD 620-1
Table 2A, type DIX 8
2.1 Longitudinal shrinkage HD 605,
subclause 2.4.4.1
3 Test on separation (inner) sheath HD 620-1
Table 4A, type DMV 25
Table 4B, type DMP 8
3.1 Mechanical properties
(a) before ageing EN 60811-1-1,
subclause 9.2
(b) after ageing in air oven EN 60811-1-2,
subclause 8.1
4 Test on outer covering and (outer) HD 620-1
sheath
Table 4A, type DMV 25
Table 4B, type DMP 8
4.1 Mechanical properties
(a) before ageing EN 60811-1-1,
subclause 9.2
(b) after ageing in air oven EN 60811-1-2,
subclause 8.1
4.2 Pressure test at high temperature EN 60811-3-1,
subclause 8.2
4.3 Resistance to environmental stress EN 60811-4-1,
cracking (PE-sheath)
method B
4.4 Carbon black content (PE-sheath) EN 60811-4-1,
Clause 11
4.5 Elongation test at low temperature for EN 60811-1-4,
PVC-sheath subclause 8.4
4.6 Heat shock test for PVC sheath EN 60811-3-1,
subclause 9.2
4.7 Loss of mass test in air oven for PVC EN 60811-3-2,
sheath subclause 8.2
4.8 Thermal stability test for PVC sheath EN 60811-3-2
Clause 9
1)
Type tests include tests classified as routine (R) and sample (S) test

Page 5-A-18
Part 5 Section A
3 Test requirements (concluded)

4 Type tests (non-electrical characteristics) (concluded)

No. Test Requirements Test method
5 Test cable on completed PVC - and HD 620-1
PE sheathed cable
Table 2A, type DIX 8
Table 4A, type DMV 25
Table 4B, type DMP 8
5.1 Mutual interference EN 60811-1-2
subclause 8.1.4
- Ageing temperature (100 ± 2) °C

- Duration                 7 d
5.2 Shore D hardness of PE sheath HD 620-1 HD 605
Table 4B, type DMP 8 subclause 2.2.1

5.3 Longitudinal water tightness cable HD 605 HD 605
subclause 2.4.9.3 f) subclause 2.4.9.3 f)
Longitudinal water tightness in
screening area
5.4 Impact test at low temperature for HD 620-1 EN 60811-1-4
cables with PVC sheath Table 4A, type DMV25 subclause 8.5

Page 5-A-19
Part 5 Section A
3 Test requirements (concluded)

5 Recommended tests after installation, if required

No. Test Requirements Test method
1) 2)
Voltage test on insulation
1.1 A.C. test voltage 45 to 65 Hz
- test voltage (r.m.s) 2 U test
O
duration 60 min No breakdown
alternatively:
1.2 A.C. test voltage 0,1Hz
- test voltage (r.m.s) 3 U test
O
duration 60 min No breakdown
2 Check of integrity of plastic sheath on laid When d.c. voltage is applied for testing of PVC or PE
cables sheaths, it is recommended to limit the voltage to 3 kV or
to 5 kV respectively. Indications of damages of the sheath
will appear usually within one minute.
1)
The test voltages and test durations are preferred values. They were specified with regard to the experience made
in laboratories and under operating conditions in utility systems.
2)
If the cable end is in a transformer or in a metal-clad switchgear, this test is subject to agreement between the
customer and manufacturers of the transformer or metal-clad switchgear.

Page 5-A-19a
Part 5 Section A
4 Guide to use
Table 1 - Recommendations for use
No.
Terms Basic Requirements
1 Permissible applications Cables specified in this HD may be laid:
- indoors and outdoors
- in soil
- in water
2 Highest permissible voltage A.C. systems

- single-phase cable systems both conductors insulated:
- for 10 kV:  14 kV
- for 20 kV:  28 kV
- for 30 kV:  42 kV
- one conductor earthed:
- for 10 kV:   7 kV
- for 20 kV:  14 kV
- for 30 kV:  21 kV
- three-phase cable systems:
- for 10 kV:  12 kV
- for 20 kV:  24 kV
- for 30 kV:  36 kV
3 Specified lightning impulse voltage  - for 10 kV:  75 kV
- for 20 kV: 125 kV
- for 30 kV: 170 kV
Page 5-A-19b
Part 5 Section A
4 Guide to use (continued)
Table 2 - Recommendations for delivery and transport
No. Terms Basic Requirements
1 Packing and shipping length The distance between the outer cable layer and the head
of the flange shall be 2 D, but at least 5 cm.

D is the outer diameter of cable.
1)
2 Cable drum dimensions
Barrel diameter of delivery drums ≥ 18 D

D is the outer diameter of the cable:

maximum value according to relevant cable standard or
manufacturer's value.
3 Cable sealing ends The cable ends have to be sealed during transport,
storage and laying to prevent ingress of water.

The cable ends shall be fastened properly.
4 Carriers Only suitable carriers shall be used.
5 Drum axis position Cable drums with flange diameters exceeding 1 m have
to be transported with horizontal drum axis.
6 Loading and unloading Only suitable carriers shall be used.
7 Rolling of cable drums Filled-up cable drums shall be rolled only on short
distances over plain solid ground in the direction
indicated.
8 Cable rings Short cable lengths may be coiled to rings and
transported and stored horizontally.

The permissible bending radii shall not fall short of the
values given in Section 4, Table 3, item 4 .
1)
There is no direct relationship between the barrel diameter of the cable drum, and the permissible bending radius,
given in Section 4, Table 3, item 4 .

Page 5-A-19c
Part 5 Section A
4 Guide to use (continued)
Table 3 - Recommendations for cable laying
No. Terms Basic Requirements
1 General remarks
1.1 Selection of cables The cable route, the laying method and the operating conditions shall be taken into
account.
1)
1.2 Laying and operating Cables shall be laid and operated in such a way that their properties are not
endangered. The following items shall be taken into account:
(a) Operating conditions
- concentration of cables
- influence of external heat
- specific earth resistance
- protection against radiation of sunlight
(b) Leakage or stray currents and corrosion
(c) Movements of soil, vibrations and shakes
(d) The method of laying and bedding material have to be selected in respect of
the outer cable sheath
(e) Protection against outer influences, e.g. chemical solvents.
1)
1.3 Protection of cables Cables shall be protected against mechanical damages occurring after installation.
Cables laid in ground are sufficiently protected against mechanical damages, in
1)
special cases additional mechanical protection can be necessary.
A laying depth of at least 0,8 m respectively 0,9 m below road surface is
recommended. In case of lower laying depths the cables shall be protected by other
means.
1)
1.4 Dimensions of ducts
Inner diameter of ducts and pipes ≥ 1,5 times cable diameter.
In case of several cables within one pipe the diameter of the pipe has to be so wide
that the cables do not block themselves.
It is recommended to protect the pipe against ingress of sand.
1.5 Fire protection The cables shall be installed in such a way that the spread of fire and its
consequences are limited. The relevant specifications especially those for
preventive fire protection shall be taken into account.
2 Lowest temperatures The lowest allowed temperature of the cables during installation and mounting of
for cable laying accessories is:
- - 5 °C for PVC sheathed cables
- - 20 °C for PE sheathed cables
These temperatures are valid for the cable itself and not for the surroundings. In
case the cables do have a lower temperature than permitted they must be warmed
up. Care has to be taken that the temperature remains above the permitted
temperature during laying.
1)
For fixed installation, national regulations should be considered.

Page 5-A-19d
Part 5 Section A
4 Guide to use (continued)
Table 3 - Recommendations for cable laying (continued)
No. Terms Basic Requirements
3 Pulling loads
3.1 Pulling force
(a) Pulling head
Maximum pulling force F = S σ
where cross-sectional area S of conductor in mm² and permissible tensile stress
σ = 50 N/mm² for cables with copper conductor
σ = 30 N/mm² for cables with aluminium conductor.
With this pulling force it is guaranteed that the permitted elongation of 0,2 % for the
conductor will not be exceeded. The maximum permissible pulling force (F in N) is
calculated from the total of the nominal cross-sectional area of the conductor. The
nominal cross-sectional area of the screen shall not be taken into account in this
calculation.
(b) Pulling grip The pulling force can be transmitted by a pulling grip via a frictional connection between
the pulling grip and the conductor of the cable. Therefore the same pulling loads apply as
for the pulling head.
For simultaneous laying of 3 single-core cables by using one common pulling grip the
following applies:
a) in case of trefoil formation calculation of the permissible pulling force to be based on
three cables.
b) in case of flat formation calculation of the permissible pulling force to be based on two
cables.
3.2 Types of laying Cables may be dug in also by means of a plough or they may be laid by a flushing-in
method.
3.3 Preparation of cable It is assumed that the cable route is well designed for the laying procedure with well-
route established curves and a sufficient number of cable rollers. Special attention shall be paid
to the required minimum bending radii (see Clause 4). The pulling force shall be
permanently supervised during the pull-in procedure.
4 Bending radii
(a) Permissible 15 times the cable diameter
bending radii
during installation
(b) Reduction of 10 times the cable diameter provided that
bending radius - bending once only
- the work is made by skilled workers
- the cable is heated up to 30 °C
- the cable is bent by means of a template

Page 5-A-19e
Part 5 Section A
4 Guide to use (continued)
Table 3 - Recommendations for cable laying (concluded)
No. Terms Basic Requirements
5 Cable fixing Single-core cables may be laid in flat or trefoil formation. A system of bundled cables may
be treated as a multi-core cable. In case of separate laying of single-core cables, cleats
made of plastics or cleats consisting of non-magnetic metals have to be used. Steel cleats
may be used if the magnetic circuit is not closed.
Cables and bundles of cables are to be tightened such that indentations caused by
pressure due to heat expansion are avoided.
5.1 Horizontal distance 20 times the cable diameter. This distance is also valid between points of support in case of
between cleats laying on a wall, or under a ceiling or on cable racks or inside cable trays. In any case a
distance of 80 cm should not be exceeded.
5.2 Vertical distance For vertical cable laying on walls higher distance between the cleats is permitted. The
between cleats distance of 1,5 m, however, should not be exceeded.

Page 5-A-19f
Part 5 Section A
4 Guide to use (concluded)
Table 4 - Fault detection
No. Test
1 Fault detection on insulation
1) 2)
1.1 with d.c. voltage
- test level for U /U = 6/10 kV: ≤ 48 kV
O
for U /U = 12/20 kV: ≤ 76 kV
O
for U /U = 18/30 kV: ≤ 108 kV
O
alternatively:
2)
1.2 with a.c. voltage 45 to 65 Hz
- a.c. voltage  ≤ 2 U (r.m.s)
O
alternatively
3)
1.3 with impulse voltage
- maximum voltage for U /U = 6/10 kV: ≤ 48 kV
O
for U /U = 12/20 kV: ≤ 76 kV
O
for U /U = 18/30 kV: ≤ 108 kV
O
2 Fault detection on the sheath
When d.c. voltage is applied for fault location on PVC or PE sheaths, it is recommended to limit the
voltage to 3 kV or to 5 kV respectively. Appropriate test procedures have to be chosen to prevent
secondary damages of the cable, e.g. by the energy content of impulse waves.
1)
Where cable routes include PE/XLPE-insulated cables aged during operation, the d.c. voltage stress shall be as
low as possible.
2)
Up to the relevant test voltage as far as permitted by permanently connected equipment.
3)
Possible voltage increase caused by reflections at the open cable end shall be avoided by suitable measures or
be taken into account for the selection of the appropriate maximum test voltage.

Page 5-B-0
Part 5 Section B
SECTION B – CABLES WITH PE (TYPE 5B-1) OR PVC SHEATH (TYPE 5B-2)

Replace pages 5-B-3, 5-B-6 to 5-B-10, 5-B-12 to 5-B-14, 5-B-16 to 5-B-22 and 5-B-41 to 5-B-44 by the
following:
Page 5-B-3
Part 5 Section B
1 General
This standard specifies the construction, dimensions and test requirements of power cables with XLPE-insulation
for rated voltages U /U (U ) from 8,7/15 (17,5) up to 20,8/36 (41,5) kV for fixed installations.
o m
(a) Insulating material
The insulation covered by this standard shall consist of cross linked polyethylene and correspond to
HD 620-1, Table 2A, compound DIX 9.

(b) Rated voltage
(i) Definitions see HD 620-1, subclause 2.3
(ii) Cables covered by this standard are suitable for A, B or C system category (see IEC 183
definitions) in accordance with following table:

Highest system voltage (U ) Rated voltage of cable
m
kV U /U (U )
o m
Categories A and B Category C
kV kV kV
17,5 12 8,7/15 (17,5)
24 17,5 12/20 (24)
36 24 18/30 (36)
41,5 - 20,8/36 (41,5)
(c) Highest rated temperatures for the insulating compound

(i) Normal operation 90 °C
(ii) Short-circuit 250 °C
(5 s maximum duration)
(iii) Emergency operation
In emergency operation the temperature of the conductor will be 120 °C
(24 h per year with maximum period of 3 h)

(d) Sheathing materials
The sheathing material shall be suitable for the maximum rated conductor temperature. It shall consist of
polyvinyl chloride or polyethylene and correspond to HD 620-1, Table 4A, compound DMV 26, or Table 4B,
compound DMP 9 or DMP 13
Page 5-B-6
Part 5 Section B
2 Design requirements (continued)

No. Cable component Requirements
HD Additional
3.3 Eccentricity
- Definition Eccentricity = ti min.
ti max.
ti min. = minimum thickness
ti max. = maximum thickness
measured on a test piece
- Requirement - In all cases, not less than 0,8
- ≥ 0,85 on 90 % of the lengths of a minimum
delivery of at least 10 drums
3.4 Diameter over the insulation Min. and max. diameters over insulation are
given in Appendix, Tables 3 to 6
4 Insulation screen HD 620-1
subclause 4.3
4.1 Screening limits Required in all cases

4.2 Material:
non metallic semi-conducting
compounds
4.3 Application Extruded on insulation, either strippable or
adhering respectively:
1 15-20-30 kV cables
(a) normally: bonded
(b) on request: strippable
2 36 kV cables
Always bonded
4.4 Thickness 1 15-20-30 kV cables
(a) bonded:
thickness between
0,6 mm and 1,2 mm
(b) strippable:
thickness between
0,6 mm and 1,5 mm
2 36 kV cables
thickness between 0,6 mm and 1,2 mm

4.5 Ovality The difference between the maximum and
minimum diameter measured on a test piece
should not be more than 1 mm (test method
under consideration).
Page 5-B-7
Part 5 Section B
2 Design requirements (continued)

No. Cable component Requirements
HD Additional
5 Semi-conducting layers on insulation HD 620-1
screen (bedding) subclause 4.3

5.1 Material
semi-conducting tape
5.2 Application
one or more tape(s)
lapped
6 Metallic Screen HD 620-1
subclause 4.8
6.1 Material
copper Lead sheath on request

6.2 Type Annealed copper wires concentric in
helix with counter helix copper tape
(regular lay, no overlapping). In case of
transversal watertightness: (on request)
lead sheath.
6.3 Dimension
(a) Cross sectional area
- nominal value Appendix, Tables 3 to 6

- diameter of wire Not less than 0,5 mm

- thickness and width of tapes Thickness between 0,10 and 0,30 mm,
minimum width 8 mm
- max. cross section of tapes 10 % of total screen cross section

(b) Thickness of lead sheath
When required, to be agreed with the
purchaser, but in any case, the minimum
thickness should provide an equivalent
to copper screen i.e. in respect of max.
resistance and short-circuit.
Page 5-B-8
Part 5 Section B
2 Design requirements (continued)

Requirements
No. Cable component
HD Additional
6.4 Maximum gap between copper
wires 6 mm
7 Longitudinal water tightness When required

7.1 Material swelling tapes All tapes under the screen should be
semiconductive
8 Intermediate layer Always required except in case of lead
sheath
8.1 Type Intermediate layer to avoid indentation
of copper wires into the outer sheath
(not explicitly defined, can be swelling
tape)
9 Metallic foil Required for transversal watertight
cables.
(alternative: lead sheath)
9.1 Material
Alu/PE foil Or on agreement Cu/PE foil

9.2 Dimension
- Thickness and width For Alu/PE: 0,2 mm
For Cu/PE: not specified
(to be agreed with purchaser)
No width specified
9.3 Application Longitudinally or helically with at least
5 mm overlapping
Page 5-B-9
Part 5 Section B
2 Design requirements (continued)

Requirements
No. Cable component
HD Additional
10 Outer sheath HD 620-1
subclause 4.9
10.1 Material HD 620-1,
polyvinyl chloride or high Table 4A, type DMV 26
density polyethylene or Table 4B,
appropriate for a 90 °C type DMP 9 or DMP 13
maximum conductor
temperature in normal
operation
10.2 Colour HD 605 PVC: always red
subclause 2.4.16 PEHD: red or black according to
purchaser's request
At the end of the weather resistance
test the colour of the red PVC and PE
sheath must subsist.
10.3 Thickness HD 620-1
subclause 4.9.3
(a) nominal value Appendix, Tables 3 to 6

(b) minimum value Appendix, Tables 3 to 6

11 Marking HD 620-1
Clause 3
11.1 Indication of the origin on the HD 620-1 Manufacturer's name or trademark
outer sheath subclause 3.1 For the bundles, the marking appears
on all the three single-core cables.

11.2 Year of manufacturing Yes

11.3 Continuity of marks Distance between the end and the

beginning of successive marks ≤ 0,5 m

11.4 Durability HD 620-1
No requirement
subclause 3.3
11.5 Legibility HD
...