POWER CABLES WITH EXTRUDED INSULATION AND THEIR ACCESSORIES FOR RATED VOLTAGES FROM 1 KV (U[M] = 1,2 KV) UP TO 30 KV (U[M] = 36 KV) - PART 1: CABLES FOR RATED VOLTAGES OF 1 KV (U[M] = 1,2 KV) AND 3 KV (U[M] = 3,6 KV)
International Electrotechnical Committee
FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
3.1 Definitions of dimensional values (thicknesses,
cross-sections, etc.)
3.2 Definitions concerning the tests
4 Voltage designations and materials
4.1 Rated voltages
4.2 Insulating compounds
4.3 Sheathing compounds
5 Conductors
6 Insulation
6.1 Material
6.2 Insulation thickness
7 Assembly of multicore cables, inner coverings and fillers
7.1 Inner coverings and fillers
7.2 Cables with rated voltage 0,6/1 (1,2) kV
7.3 Cables with rated voltage 1,8/3 (3,6) kV
8 Metallic layers for single-core and multicore cables
9 Metallic screen
9.1 Construction
9.2 Requirements
10 Concentric conductor
10.1 Construction
10.2 Requirements
10.3 Application
11 Metallic sheath
11.1 Lead sheath
11.2 Other metallic sheaths
12 Metallic armour
12.1 Types of metallic armour
12.2 Materials
12.3 Application of armour
12.4 Dimensions of the armour wires and armour tapes
12.5 Correlation between cable diameters and armour
dimensions
12.6 Round or flat wire armour
12.7 Double tape armour
13 Oversheath
13.1 General
13.2 Material
13.3 Thickness
14 Test conditions
14.1 Ambient temperature
14.2 Frequency and waveform of power frequency test
voltages
14.3 Waveform of impulse test voltages
15 Routine tests
15.1 General
15.2 Electrical resistance of conductors
15.3 Voltage test
16 Sample tests
16.1 General
16.2 Frequency of sample tests
16.3 Repetition of tests
16.4 Conductor examination
16.5 Measurement of thickness of insulation and of
non-metallic sheaths (including extruded separation
sheaths, but excluding inner extruded coverings)
16.6 Measurement of thickness of lead sheath
16.7 Measurement of armour wires and tapes
16.8 Measurement of external diameter
16.9 Hot set test for EPR, HEPR and XLPE insulations and
elastomeric sheaths
17 Type tests, electrical
17.1 Insulation resistance measurement at ambient temperature
17.2 Insulation resistance measurement at maximum conductor
temperature
17.3 Voltage test for 4 h
17.4 Impulse test for cables of rated voltage 1,8/3 (3,6) kV
18 Type tests, non-electrical
18.1 Measurement of thickness of insulation
18.2 Measurement of thickness of non-metallic sheaths
(including extruded separation sheaths, but excluding
inner coverings)
18.3 Tests for determining the mechanical properties of
insulation before and after ageing
18.4 Tests for determining the mechanical properties of
non-metallic sheaths before and after ageing
18.5 Additional ageing test on pieces of completed cables
18.6 Loss of mass test on PVC sheaths of type ST[2]
18.7 Pressure test at high temperature on insulations and
non-metallic sheaths
18.8 Test on PVC insulation and sheaths and halogen free
sheaths at low temperatures
18.9 Test for resistance of PVC insulation and sheaths to
cracking (heat shock test)
18.10 Ozone resistance test for EPR and HEPR insulations
18.11 Hot set test for EPR, HEPR and XLPE insulations and
elastomeric sheaths
18.12 Oil immersion test for elastomeric sheaths
18.13 Water absorption test on insulation
18.14 Fire tests
18.15 Measurement of carbon black content of black PE
oversheaths
18.16 Shrinkage test for XLPE insulation
18.17 Special bending test
18.18 Determination of hardness of HEPR insulation
18.19 Determination of the elastic modulus of HEPR insulation
18.20 Shrinkage test for PE oversheaths
18.21 Additional mechanical tests on halogen free oversheaths
18.22 Water absorption test for halogen free oversheaths
19 Electrical tests after installation
Annex A (normative) - Fictitious calculation method for
determination of dimensions of protective coverings
A.1 General
A.2 Method
Annex B (normative) - Rounding of numbers
B.1 Rounding of numbers for the purpose of the fictitious
calculation method
B.2 Rounding of numbers for other purposes
Annex C (normative) - Determination of hardness of HEPR
insulations
C.1 Test piece
C.2 Test procedure
Describes the construction, dimensions and test requirements of power cables with extruded solid insulation for rated voltages of 1 kV (U[m] = 1,2 kV) and 3 kV (U[m] = 3,6 kV) for fixed installations such as distribution networks or industrial installations.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 20 |
| Supersedes |
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