SIST HD 621 S1:1998/A1:2002
(Amendment)Medium voltage impregnated paper insulated distribution cables
Medium voltage impregnated paper insulated distribution cables
2021: CLC legacy converted by DCLab NISOSTS
Energieverteilungskabel mit getränkter Papierisolierung für Mittelspannung
Câbles de distribution moyenne tension isolés au papier imprégné
Medium voltage impregnated paper insulated distribution cables
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST HD 621 S1:1998/A1:2002
01-april-2002
Medium voltage impregnated paper insulated distribution cables
Medium voltage impregnated paper insulated distribution cables
Energieverteilungskabel mit getränkter Papierisolierung für Mittelspannung
Câbles de distribution moyenne tension isolés au papier imprégné
Ta slovenski standard je istoveten z: HD 621 S1:1996/A1:2001
ICS:
29.035.10 Papirni in kartonski izolacijski Paper and board insulating
materiali materials
29.060.20 Kabli Cables
SIST HD 621 S1:1998/A1:2002 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST HD 621 S1:1998/A1:2002
---------------------- Page: 2 ----------------------
SIST HD 621 S1:1998/A1:2002
HARMONIZATION DOCUMENT HD 621 S1/A1
DOCUMENT D'HARMONISATION
HARMONISIERUNGSDOKUMENT July 2001
ICS 29.040.20; 29.060.20
English version
Medium voltage impregnated paper insulated distribution cables
Câbles de distribution moyenne tension Energieverteilungskabel mit getränkter
isolés au papier imprégné Papierisolierung für Mittelspannung
This amendment A1 modifies the Harmonization Document HD 621 S1:1996; it was approved by
CENELEC on 2000-12-01. 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 two official versions (English, French).
CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic,
Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway,
Portugal, 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
© 2001 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. HD 621 S1:1996/A1:2001 E
---------------------- Page: 3 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 0-2
HD 621 S1:1996/A1:2001
Foreword
This amendment to HD 621 S1:1996 has been prepared by WG9 of CENELEC TC 20 “Electric
Cables”. CENELEC TC 20 confirmed at its Stresa meeting (April 1999) that the amendment
should go to the Unique Acceptance Procedure.
A list of additions and amendments to the particular sections of Parts 3 to 4 is given in this
Part 0.
NOTE During the preparation of this amendment, IEC 60502 (4th edition) has been replaced by
IEC 60502-1 and -2 and HD 405.1 has been superseded by EN 50265.
In general the updating of these references has not been included in this amendment unless a complete section has
been introduced or replaced. Users should refer to these new editions for the most up-to-date information.
The test of the draft was submitted to the Unique Acceptance Procedure and as approved by
CENELEC as amendment A1 to HD 621 S1:1996 on 2000-12-01.
The following dates were fixed:
− latest date by which the existence of the
amendment has to be announced at national level (doa) 2001-07-01
− latest date by which the amendment has to be
implemented at national level by publication of a
harmonized national standard or by endorsement (dop) 2002-01-01
− latest date by which the national standards
conflicting with the amendment have to be withdrawn (dow) 2004-01-01
---------------------- Page: 4 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 0-3
HD 621 S1:1996/A1:2001
Contents
(HD 621 S1:1996 plus Amendment No. 1)
(1)
Part 1 General requirements
(1)
Part 2 Additional test methods
Part 3 Impregnated paper insulated cable-single core, also pre-assembled
3-A Single core draining or non-draining paper insulated cable - unarmoured;
with or without thermoplastic sheath (Type 3A)
3-B Single core cables with paper insulation, non-draining
(1)
3-C Impregnated paper insulated cables - single core cables
3-E Single core cables 12/20 kV and 18/30 kV
3-F Single core cables, also pre-assembled
(1)
3-G Cables with paper insulation - draining - unarmoured - PVC or PE sheathed
- single core
3-I Cables with PE sheath
3-J-1 Single core and SL type paper insulated cables with lead sheath (up to and
including 12,7/22 kV)
3-J-2 Single core and SL type paper insulated cables with lead sheath (19/33 kV)
Part 4 Impregnated paper insulated cables - three core
4-A Multicore draining or non-draining paper insulated cable - belted or screened
cores - one or three metallic sheaths - armoured or unarmoured -
thermoplastic sheath or not.
4-B Multicore cables with paper insulation, non draining
4-C Impregnated paper insulated cable - belted H and SL type cables.
4-D Belted multicore cables with polypropylene yarn serving, or PVC or
polyethylene sheath.
4-E Armoured three-core cables with lead sheaths 12/20 kV and 18/30 kV and
three-core cables 12/15 kV non-radial field
4-F Multicore cables (Belted cables; three screened cores - one lead sheath;
three metallic sheathed cores - one outer covering)
(1)
4-G-1 Impregnated paper insulated cable - three core draining paper insulated
cable - screened cores, one metallic sheath - armoured or unarmoured
serving, PE or PVC sheath
(1)
4-G-2 Impregnated paper insulated cable - three core draining paper insulated
cable - belted, one metallic sheath - armoured or unarmoured serving, PE or
PVC sheath
4-H-1 Three-core belted and screened cables, with lead sheath and steel tape
armour
4-H-2 Three-core SL steel armoured cables
4-I Cables with one lead sheath (Type 4I-1) and with three lead sheaths (Type
4I-2) and with sheaths of PE
4-J-1 Three core cables with lead sheath (19/33 kV)
4-J-2 Three core cables with lead sheath, up to and including 12,7/22 kV
4-J-3 Three core cables with aluminium sheath
4-K Armoured three core cables with lead sheaths and a rated voltage 23/40 kV
(1)
Amendment No. 1 introduces some changes to the text
---------------------- Page: 5 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 0-4
HD 621 S1:1996/A1:2001
“Blank page”
---------------------- Page: 6 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 1-0
HD 621 S1:1996/A1:2001
Part 1
Part 1 : General requirements
Replace pages 1-15 and 1-19 by the following:
---------------------- Page: 7 ----------------------
SIST HD 621 S1:1998/A1:2002
---------------------- Page: 8 ----------------------
SIST HD 621 S1:1998/A1:2002
Table 4A – Requirements of sheathing compounds PVC (continued)
1 2 3 202122
COMPOUND NO Test Method Unit DMV 44 DMV 45 DMV 46
TYPE PVC sheath PVC sheath PVC sheath
MAXIMUM OPERATING TEMPERATURE OF THE CONDUCTOR °C 90 70 70
Mechanical properties
- before ageing on sample
minimum tensile strength Mpa 12,5 12,5 12,5
minimum elongation at break % 125 125 125
- after ageing on sample
temperature 80 80 80
°C
duration T1 h 168 168 168
minimum tensile strength Mpa 12,5 12,5 12,5
maximum variation T1/T0 % ± 20 ± 20 ± 20
minimum elongation at break % 125 125 125
maximum variation T1/T0 % ± 20 ± 20 ± 20
- after ageing on complete cable (non contamination test)
temperature °C 80 80 60
duration T1 h
duration T2 h 168 168 168
minimum tensile strength Mpa 12,5 12,5
maximum variation T2/T0 % ± 20 ± 20 ± 25
maximum variation T2/T0 %
minimum elongation at break % 125 125
maximum variation T2/T0 % ± 20 ± 20 ± 25
maximum variation T2/T1
Physical and chemical properties
Shrinkage test
duration h
temperature °C
maximum shrinkage %
2
Note: 1Mpa = 1N/mm
Remark: The tolerance on temperature values is given in HD 605 subclause 1.5.2 but may be
varied if specified in the particular sections
Page 1-15
HD 621 S1:1996/A1:2001
Part 1
---------------------- Page: 9 ----------------------
SIST HD 621 S1:1998/A1:2002
---------------------- Page: 10 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 1-19
HD 621 S1:1996/A1:2001
Part 1
Table 4B - Requirements of sheathing compounds: PE (continued)
1 2 3 10 111213
COMPOUND NO. TEST UNIT DMP 12 DMP 21 DMP 22 DMP 23
TYPE PE sheath PE sheath PE sheath PE sheath
METHOD
MAXIMUM OPERATING TEMPERATURE OF °C 90 90 90 90
THE CONDUCTOR
Mechanical properties
- before ageing on sample
minimum tensile strength MPa 10 10 12,5
minimum elongation at break % 300 300 350 300
- after ageing on sample
temperature °C 100 100 100 110
duration T1 h 240 240 48 336
minimum tensile strength MPa 10
maximum variation T1/T0 %
minimum elongation at break % 300 300 300
maximum variation T1/T0 % ± 25
- after ageing on complete cable
(non contamination test)
temperature °C 100 60
duration T1 h
duration T2 h 168 168
minimum tensile strength MPa
maximum variation T2/T0 %
maximum variation T2/T0 %
minimum elongation at break % 300 300
maximum variation T2/T0 %
maximum variation T2/T1 %
Note: 1MPa = 1N/mm²
Remark: The tolerance on temperature values is given in HD 605 subclause 1.5.2 but may be varied if specified in the particular sections
---------------------- Page: 11 ----------------------
SIST HD 621 S1:1998/A1:2002
---------------------- Page: 12 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 2-0
HD 621 S1:1996/A1:2001
Part 2
Part 2: Additional test methods
Replace pages 2-3 and 2-24 by the following:
---------------------- Page: 13 ----------------------
SIST HD 621 S1:1998/A1:2002
---------------------- Page: 14 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 2-3
HD 621 S1:1996/A1:2001
Part 2
Page
2.2 Tests on the paper insulation
2.2.1 Test for water soluble impurities in insulating paper . 12
2.2.2 Drainage test
2.2.2.1 Method 1 . 13
2.2.2.2 Method 2 . 14
2.2.3 Measurement of breaking load and elongation at
break of impregnated paper. 14
2.3 Tests on other cable components
2.3.1 Mass of zinc coating of galvanised steel wire or tape. 14
2.3.2 Corrosion test
2.3.2.1 Test on corrosion protection of aluminium sheath . 15
2.3.2.2 Corrosion test (for cables under aluminium . 17
sheath)
2.3.2.3 Test for bitumen coating of aluminium sheath . 17
2.3.2.4 Test for restriction of corrosion of aluminium . 18
sheath
2.3.3 Undersheath pressure test . 18
2.3.4 Water penetration test . 19
2.3.5 Non staining test. 19
2.3.6 Corrugated aluminium sheath removal test . 20
2.4 Bend test on the complete cable
2.4.1 Method 1 . 20
2.4.2 Method 2 . 22
2.4.3 Method 3 . 23
2.5 Measurement of ingress of water . 23
3. Electrical tests
3.1 Insulation voltage test
3.1.1 Voltage test on complete cable. 25
3.2 Power factor, tan δ
3.2.1 Method 1 . 26
3.2.2 Method 2 . 27
3.2.3 Method 3, Tan δ on cables of rated voltage U ≥ 4,8 kV. 27
o
3.3 Sheath voltage test
3.3.1 D.C. voltage test on oversheath . 28
---------------------- Page: 15 ----------------------
SIST HD 621 S1:1998/A1:2002
---------------------- Page: 16 ----------------------
SIST HD 621 S1:1998/A1:2002
---------------------- Page: 17 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 2-24
HD 621 S1:1996/A1:2001
Part 2
The diameter of the test cylinder shall be:
− Single core armoured cables : 20 x D
− Single core unarmoured cables : 25 x D
− Three core armoured cables : 12 x D
− Three core unarmoured cables : 15 x D
Where D = outer diameter of the cable.
2.5 Measurement of ingress of water
After the bending test (see 2.4.3) a length of approximately 30 m of completed cable is heated
by passing a current through two conductors until the conductor reaches a temperature of
50 °C. One cable end is sealed by means of a lead cap soldered onto the lead sheath and the
other end is sawn off straight and left open.
The cable on the drum is immersed in a water bath, the open end is kept 80 cm below the
water surface. The temperature of water shall be (15 ± 5)°C.
After exposure to the water for 48 hours the ingress of water into the cable is measured. All
materials under the lead sheath are removed and immersed in oil at a temperature between
130 ° and 150 °C. The presence of water is shown by the sizzling of water in hot oil.
---------------------- Page: 18 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 3-C-0
HD 621 S1:1996/A1:2001
Part 3 Section C
Section C: Impregnated paper insulated cables
Single-core cables
Replace pages 3-C-30 and 3-C-31 by the following:
---------------------- Page: 19 ----------------------
SIST HD 621 S1:1998/A1:2002
---------------------- Page: 20 ----------------------
SIST HD 621 S1:1998/A1:2002
---------------------- Page: 21 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 3-C-30
HD 621 S1:1996/A1:2001
Part 3 Section C
6. Appendix (Tables) (continued)
Table 10 - Rated current carrying capacity, cables in earth, U /U = 18/30 kV
o
1 2 34 56 7 8 9
Insulating Impregnated paper
material
Permissible
60 °C
operating
temperature
Designation NKY NKLEY NAKY NAKLEY
Arrangement
Cross Copper conductor Aluminium conductor
sectional Rated current in A Rated current in A
2
area in mm
25
-- - - - - - -
35 156 168 155 165 121 130 120 129
50 185 200 184 195 144 155 143 153
70 229 247 227 238 178 192 177 188
95 276 297 272 281 215 232 212 224
120 316 339 309 317 246 266 243 254
150 354 382 345 351 276 299 271 283
185 400 431 385 384 313 340 305 317
240 463 499 440 427 363 395 351 357
300 522 555 486 461 410 444 392 391
400 591 619 539 499 470 502 442 432
500 666 684 590 535 536 564 494 471
---------------------- Page: 22 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 3-C-31
HD 621 S1:1996/A1:2001
Part 3 Section C
6. Appendix (Tables) (continued)
Table 11 - Rated current carrying capacity, cables in air, U /U = 18/30 kV
o
1 2 34 56 78 9
Insulating Impregnated paper
material
Permissible
60°C
operating
temperature
Designation NKY NKLEY NAKY NAKLEY
Arrangement
Cross Copper conductor Aluminium conductor
sectional Rated current in A Rated current in A
2
area in mm
25
-- - - - - - -
35
134 149 133 147 104 116 104 115
50
160 179 160 176 124 139 124 138
70
200 224 198 217 155 174 155 171
95
244 273 241 261 189 213 188 207
120
281 315 276 297 219 246 216 237
150
319 357 312 332 248 279 245 266
185
366 408 355 371 286 321 280 301
240
432 480 414 423 338 379 329 348
300
495 546 467 266 388 433 375 390
400
572 623 529 515 453 501 431 439
500
658 706 594 563 527 577 492 490
---------------------- Page: 23 ----------------------
SIST HD 621 S1:1998/A1:2002
---------------------- Page: 24 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 3-G-0
HD 621 S1:1996/A1:2001
Part 3 Section G
Section G: Cables with paper insulation - draining
unarmoured - PVC or PE Sheathed - single core
Replace pages 3-G-6, 3-G-7, 3-G-9, 3-G-10, 3-G-12, 3-G-14, 3-G-18 and 3-G-19 by the
following:
---------------------- Page: 25 ----------------------
SIST HD 621 S1:1998/A1:2002
---------------------- Page: 26 ----------------------
SIST HD 621 S1:1998/A1:2002
---------------------- Page: 27 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 3-G-6
HD 621 S1:1996/A1:2001
Part 3 Section G
2 Design Requirements (continued)
No. Cable Component Requirements
HD Additional
9 Serving Not applicable, single core
cables are not armoured unless
otherwise agreed between
manufacturer and purchaser
10 Outer sheath HD 621.1, subclause 5.11 The outer sheath is applied
over the lead sheath, between
the outer sheath and the lead
sheath a layer of compound
may be applied.
10.1 Material HD 621.1,
PVC Table 4A, Type DMV46
PE Table 4B, Type DMP23
Colour red
10.2
10.3 Thickness
a) nominal value See Appendix A, Table 2
b) mean value
≥ nominal value
c) minimum value
≥ nominal value - (0,1 mm +
15 % of nominal value)
11 Marking HD 621.1, subclause 3.1
11.1 Type Embossed, figures and letters
shall be raised
11.2 Legend (Mark)
− Manufacturer’s name or
trade mark
− Type designation, rated
voltage, number and size
conductors, addition ‘Al’ in
case of aluminium
conductors
11.3 Continuity of marks
Distance between the
beginning of one mark and the
beginning of the next ≤ 0,5 m
12 Code designation VPLKrv, EPLKrv
(provisional)
13 Outer diameter Not specified.
See Appendix A, Table 2
14 Details about delivery By agreement between
manufacturer and purchaser.
---------------------- Page: 28 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 3-G-7
HD 621 S1:1996/A1:2001
Part 3 Section G
2 Design Requirements (concluded)
No. Cable Component Requirements
HD Additional
15 Cable drums The cable drums shall be
lagged.
15.1 Winding diameter
− 1 core armoured cables:
minimum diameter of barrel:
25 x D
− 1 core unarmoured cables:
minimum diameter of barrel:
30 x D
D = outer diameter of cable
15.2 Legend
The drum shall be marked in a
clear and durable way:
− Manufacturer’s name
− code designation
− length of cable
− arrow as indication for the
rolling direction
− code and serial number of
drum
16 Sealing of cable ends Both cable ends shall be sealed
by means of a lead cap
soldered on to the lead sheath
so as to prevent the ingress of
water and leakage of
impregnating compound
---------------------- Page: 29 ----------------------
SIST HD 621 S1:1998/A1:2002
---------------------- Page: 30 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 3-G-9
HD 621 S1:1996/A1:2001
Part 3 Section G
3 Test Requirements (continued)
2 Sample Tests
No. Test Requirement* Test Method
1 Construction of conductor and
dimensions
1.1 Conductor HD 383 Visual inspection
1.2 Thickness of insulation Ref. no. 3.3 HD 621.2, subclause 2.1.1.3
1.3 Thickness of lead sheath Ref. no. 6.3 HD 621.2, subclause 2.1.2.4
1.4 Thickness of outer sheath Ref. no. 10.3 EN 60811-1-1, subclause 8.2.
The use of a micrometer with
plane faces of 6 to 8 mm and
an accuracy of 0,01 mm, or
an electronic calliper, is
permitted.
2 Power factor, tan δ at ambient HD 621.2, subclause 3.2.3
temperature
0,5 U
− start voltage o
2,5 U
− end voltage o
0,25 U
o
− voltage steps
2.1
− max. increase of tan δ:
-4
2,5 x 10
0,5 U up to 1,5 U per step
o o
-4
40 x 10
0,5 U up to 2,5 U in total
o o
2.2
− max. value of tan δ at U
o
depending on temperature:
-4
10 °C 90 x 10
-4
12 °C
80 x 10
-4
15 °C
70 x 10
-4
20 °C
60 x 10
25 °C -4
50 x 10
40 °C
-4
40 x 10
45 °C
-4
40 x 10
3 Power factor/temperature test on complete cable length HD 621.2, subclause 3.2.3
3.1 40 ° to 45 °C
− conductor temperature
0,5 h
− steady state at end temperature
3.2
− Power factor tan δ at elevated
temperature
See sample test 2
voltages
See table at sample test 2.1
max. increase tan δ
See table at sample test 2.2
max. tan δ
* According to Section 2 ‘Design requirements’ unless stated otherwise
---------------------- Page: 31 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 3-G-10
HD 621 S1:1996/A1:2001
Part 3 Section G
3 Test Requirements (continued)
2 Sample Tests (continued)
No. Test Requirement* Test Method
3.3 − fast cooling of cable in waterbath or under
decrease of temperature shower ≥ 25 K
3.4
− Power factor tan δ at elevated
temperature
voltages See sample test 2
See sample test 2.2
max. tan δ
max. increase of tan δ
-4
2,5 x 10
0,5 U up to 1,25 U per step
o o
-4
40 x 10
0,5 U up to 2,5 U in total
o o
time between 3.2 and 3.4 ≥ 12 h
4 Bending test HD 621.2,
subclause 2.4.3
4.1 Bending test
− temperature during test 10 ° to 15 °C
− bending diameter
− single core cables
20 x D
armoured
25 x D
unarmoured
D = outer diameter of cable
3
− number of bending cycles
4.2
HD 605,
Voltage test after bending
subclause 3.2.1
4 U
− Test voltage ac o
10 min
− duration
No breakdown
Visual inspection
4.3
number of torn paper layers
Tears in transverse direction:
In the core insulation a paper tape
is considered to be torn when a
tear is longer than 1/3 of the width
of the paper tape. A metallised
paper is considered to be torn
when a tear is longer than 1/2 of
the width of the paper tape.
*According to Section 2. ‘Design requirements’ unless stated otherwise
---------------------- Page: 32 ----------------------
SIST HD 621 S1:1998/A1:2002
---------------------- Page: 33 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 3-G-12
HD 621 S1:1996/A1:2001
Part 3 Section G
3 Test requirements (continued)
2 Sample tests (concluded)
No. Test
6.5
− High voltage test (sample test 5)
Number of
Length of same cable type
samples
Above Up to and
including
(km) (km)
- 5 1
5 15 2
15 25 3
etc. etc.
Repetition of tests
7
If any sample test should fail it is permitted that two further samples be taken from the same
batch are submitted to the test(s). Should either of them fail the batch should be regarded as
failing to comply. Further re-sampling and testing should then be a matter of negotiation.
(1)
Test Requirements
Test Method
8
Tests on PVC outer sheath
8.1 Tensile properties before ageing HD 621.1, Table 4A, DMV 46
EN 60811-1-1, clause 9
8.2 Pressure test at 80 °C HD 621.1, Table 4A, DMV 46
EN 60811-3-1, clause 8
HD 621.1, Table 4A, DMV 46
8.3 Heat shock test at 150 °C
EN 60811-3-1, clause 9
HD 621.1, Table 4A, DMV 46
8.4 Cold elongation test at –15 °C
EN 60811-1-4,
subclause 8.5
9 Tests on PE outer sheath
9.1 Tensile properties before ageing HD 621.1, Table 4B, DMP 23
EN 60811-1-1, clause
9
9.2 HD 621.1, Table 4A, DMP 23
Pressure test at 115 °C
EN 60811-3-1, clause
8
10 Measurement of ingress of water This test will be executed by
HD 621.2,
agreement between
subclause 2.5
manufacturer and purchaser
max. ingress of water : 3 m for cable types with copper
conductor and a cross sectional
area up to and including
2
150 mm ;
5 m for all other cable types.
However for cables produced
until 2000-01-01 the
requirement is 5 m applies to all
cable types.
(1)
Tests No. 8, 9 and 10 are optional
---------------------- Page: 34 ----------------------
SIST HD 621 S1:1998/A1:2002
---------------------- Page: 35 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 3-G-14
HD 621 S1:1996/A1:2001
Part 3 Section G
3 Test requirements (continued)
4 Type Tests (non-electrical)
No. Test Requirements* Test Method
1 Tests on PVC outer sheath
1.1 Tensile properties before ageing HD 621.1, Table 4A, DMV46 EN 60811-1-1, clause 9
1.2 Tensile properties after ageing HD 621.1, Table 4A, DMV46 EN 60811-1-1, clause 9
EN 60811-1-2, clause 8
1.3 Tensile properties after ageing of HD 621.1, Table 4A, DMV46 EN 60811-1-1, clause 9
complete cable EN 60811-1-2, clause 8
1.4 Loss of mass HD 621.1, Table 4A, DMV46 EN 60811-3-2, clause 8
1.5 HD 621.1, Table 4A, DMV46 EN 60811-3-1, clause 8
Pressure test at 80 °C
1.6 HD 621.1, Table 4A, DMV46 EN 60811-1-4, subclause 8.5
Cold impact test at –15 °C
1.7 HD 621.1, Table 4A, DMV46 EN 60811-3-1, clause 9
Heat shock test
1.8 no discolouring by H S HD 605, subclause 2.4.19
Colour stability 2
2 Tests on PE outer sheath
2.1 Tensile properties before ageing HD 621.1, Table 4B, DMP23 EN 60811-1-1, clause 9
2.2 Tensile properties after ageing HD 621.1, Table 4B, DMP23 EN 60811-1-1, clause 9
EN 60811-1-2, clause 8
2.3 Tensile properties after ageing of HD 621.1, Table 4B, DMP23 EN 60811-1-1, clause 9
complete cable EN 60811-1-2, clause 8
2.4 HD 621.1, Table 4B, DMP23 EN 60811-3-1, clause 8
Pressure test at 115 °C
2.5 under consideration
UV resistance
3 Measurement of ingress of water HD 621.2, subclause 2.5
max. ingress of water:
3 m for cable types with
copper conductor and a
cross sectional area up to
2
and including 150 mm ;
5 m for all other cable
types.
However for cables
produced until 2001-01-01
the requirement is 5 m
applies to all cable types.
* According to Section 2. ‘Design requirements’ unless stated otherwise
---------------------- Page: 36 ----------------------
SIST HD 621 S1:1998/A1:2002
---------------------- Page: 37 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 3-G-18
HD 621 S1:1996/A1:2001
Part 3 Section G
6 Appendix (Tables)
Appendix A
Table 1 - Single-core radial field type cables - Thickness of insulation
U Nominal cross-sectional area Minimum thickness of insulation
o
*)
kV mm² mm
6 25 up to 50 3,5
≥ 70 3,0
8 25 up to 95 4,5
4,0
≥ 120
6,0
12 25 up to 95
5,0
≥ 120
8,0
18
50 up to 95
7,0
≥ 120
*) without conductor and insulation screen
Table 2 - Single-core radial field type cables –
Thickness of outer sheathunarmoured cables
Nominal diameter over lead sheath nominal thickness
> up to outer sheath
mm Mm mm
- 35 1,8
35 40 2,0
40 45 2,2
45 50 2,4
50 60 2,6
60 - 3,0
---------------------- Page: 38 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 4-G1-0
HD 621 S1:1996/A1:2001
Part 4 Section G-1
Section G-1: Impregnated paper insulated cable -
Three core draining paper insulated cable -Screened cores one metallic sheath -
Armoured or unarmoured serving, PE or PVC sheath
Replace pages 4-G1-9, 4-G1-10, 4-G1-12, 4-G1-13, 4-G1-16, 4-G1-19 and 4-G1-25 by the
following:
---------------------- Page: 39 ----------------------
SIST HD 621 S1:1998/A1:2002
---------------------- Page: 40 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 4-G1-9
HD 621 S1:1996/A1:2001
Part 4 Section G-1
2 Design requirements (continued)
No. Cable Component Requirements
HD Additional
13.2 Colour red
13.3 Thickness
a) nominal value See Appendix A, Table 2
b) mean value ≥ nominal value
c) minimum value - outer
≥ nominal value - (0,2 mm +
sheath over armour
20 % of nominal value)
− outer sheath over lead
≥ nominal value - (0,1 mm +
sheath
15 % of nominal value)
14 Marking HD 621.1, subclause 3.1
14.1 Type Embossed; figures and
letters shall be raised.
14.2 Legend
− Manufacturer’s name or
trade mark
− Type designation, rated
voltage, number and
size conductors, addition
‘Al’ in case of aluminium
conductors
14.3 Continuity of marks
Distance between the
beginning of one mark and
the beginning of the next
≤ 0,5 m.
15 Outer diameter Not specified
16 Code designation GPLKrv/VGPLKrv/EGPLKrv/
(provisional) VPLKrv/EPLKrv
See Appendix C
17 Details about delivery By agreement between
manufacturer and
purchaser.
18 Cable drum The cable drums shall be
lagged.
18.1 Winding diameter - 3 core armoured cables:
minimum diameter of
barrel: 15xD
- 3 core unarmoured
cables:
minimum diameter of
barrel: 20xD
D = outer diameter of cable
---------------------- Page: 41 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 4-G1-10
HD 621 S1:1996/A1:2001
Part 4 Section G-1
2 Design requirements (concluded)
No. Cable Component Requirements
HD Additional
18.2 Legend The drum shall be marked in
a clear and durable way:
− Manufacturer’s name
− code designation
− length of cable
− arrow as indication for
the rolling direction
− code and serial number
of drum
19 Sealing of cable ends Both cable ends shall be
sealed by means of a lead
cap soldered on to the lead
sheath so as to prevent the
ingress of water and
leakage of impregnating
compounds.
---------------------- Page: 42 ----------------------
SIST HD 621 S1:1998/A1:2002
---------------------- Page: 43 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 4-G1-12
HD 621 S1:1996/A1:2001
Part 4 Section G-1
3 Test Requirements (continued)
2 Sample Tests
No. Test Requirement* Test Method
1 Construction of conductor and
dimensions
1.1 Conductor HD 383 Visual inspection
1.2 Thickness of insulation Ref. no. 3.3 HD 621.2, subclause 2.1.1.3
1.3 Thickness of lead sheath Ref. no. 8.3 HD 621.2, subclause 2.1.2.4
1.4 Thickness of bedding Ref. no. 10.2 HD 621.2, subclause 2.1.3.4
1.5 Measurement of armouring tapes
and wires
steel tape Ref. no. 11.2.2 HD 621.2, subclause 2.1.3.3
steel wire Ref. no. 11.3.2 HD 621.2, sub-clause 2.1.3.2
Thickness of serving Ref. no. 12.3 HD 621.2, subclause 2.1.3.4
1.6
Thickness of outer sheath Ref. no. 13.3 EN 60811-1-1, subclause 8.2
1.7 The use of a micrometer with
plane faces of 6 mm to 8 mm
and an accuracy of 0,01 mm,
or an electronic calliper, is
permitted.
2 HD 621.2, subclause 3.2.3
Power factor, tan δ at ambient
temperature
0,5 U
− start voltage o
2,5 U
o
− end voltage
0,25 U
o
− voltage steps
2.1
- max. increase of tan δ :
-4
0,5 U up to 1,5 U per step
2,5 x 10
o o
-4
0,5 U up to 2,5 U in total
o o 40 x 10
2.2
- max. value of tan δ at U
o
depending on temperature
-4
10 °C
90 x 10
-4
12 °C
80 x 10
-4
15 °C
70 x 10
-4
20 °C
60 x 10
-4
25 °C 50 x 10
-4
40 x 10
40 °C
-4
40 x 10
45 °C
*According to Section 2. ‘Design requirements’ unless stated otherwise
---------------------- Page: 44 ----------------------
SIST HD 621 S1:1998/A1:2002
Page 4-G1-13
HD 621 S1:1996/A1:2001
Part 4 Section G-1
3 Test Requirements (continued)
2 Sample Tests (continued)
No. Test Requirement* Test Method
3 Power factor/temper
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.