The Ki value shall meet the requirements specified in sub-clause 2.3.2.1;
The thermogravimetric check, carried out as specified in sub-clause 2.5.2 of HD 605, shall not show a significant change in the material characteristics in comparison with the results obtained with unaged cable;
(cl no exudate shall be visible.
Flame propagation test
The characteristics of a cable in category C1 shall be such that it meets the performance requirements of HD 405.1 and that, after having been tested in accordance with sub-clause 4.1.2 of HD 605, the two test pieces of cable shall comply with the following condition:
On visual inspection, the part of the test piece located above the top of the chimney shall show no trace of combustion.
Oxygen index test
During type tests, the absolute oxygen index of samples of insulation, inner sheath (if any) and oversheath, taken from the complete cable, shall be determined using the test method given in HD 405.3 (Appendix B). The values obtained shall be used to enable a nominal value together with suitable tolerances for sample tests to be agreed between manufacturer and purchaser.
For sample tests the values of oxygen index of the insulation, inner sheath (if any) and oversheath shall be determined using the test method given in HD 405.3 (Appendix B). The values obtained shall be fall within the agreed tolerance on the nominal value.
Cables without metallic covering
Code designation
(Under consideration by TC20)
Rated voltage
0.6/1 kV
Construction
Conductor
The conductors shall be of the material and type detailed in table 6 and shall comply with the requirements of HD 383 for Class 2 stranded conductors.
Insulation
The insulation shall be polyvinyl chloride compound (PVC) complying with the nonelectrical requirements given in table 1 and the insulation resistance requirements given in sub-clause 2.3.2.
The insulation thickness shall comply with the values specified in table 8.
Assembly protection
For cables having 2, 3 or 4 cores, the assembly protection shall consist of a filler that does not create an overthickness ('zero thickness' filler).Table 3 (Concluded)
|
|
2 |
3 |
4 |
5 |
|
Ref |
Test |
Category |
Test method |
Requirement given in |
|
No |
|
of test |
described in: |
Clause* |
|
3. |
Non-electrical tests for insulating and sheathing materials |
|
|
|
|
3.1 |
Insulation |
T |
Table 1 |
Table 1 |
|
3.2 |
Inner sheath |
T |
Table 1 |
Table 1 |
|
3.3 |
Oversheath |
T |
Table 1 |
Table 1 |
|
3.4 |
Tensile test in the state as delivery: |
|
|
|
|
|
(a) Insulation |
s |
HD БОБ.1.1, 9.1 |
Table 1, 1.1 |
|
|
(b) Inner sheath |
s |
HD БОБ.1.1, 9.2 |
Table 1, 1.1 |
|
|
(c) Oversheath |
s |
HD БО6.1.1, 9.2 |
Table 1, 1.1 |
|
4. |
Tests for complete cables |
|
|
|
|
4.1 |
Bending test |
T |
HD 605, 2.4.1.1 |
2.3.6.1 |
|
4.2 |
Thermal endurance test for power cable |
T |
HD 605, 5.1.5 |
2.3.7 |
|
4.3 |
Thermal endurance test for control cable |
T |
HD 605, 5.1.4 |
2.3.8 |
|
6. |
Tests related to fire conditions |
|
|
|
|
Б.1 |
Insulation - oxygen index |
T.S |
pr HD 405.3 |
2.3.10 |
|
6.2 |
Inner sheath - oxygen index |
T.s |
pr HD 405.3 |
2.3.10 |
|
5.3 |
Oversheath - oxygen index |
T,s |
pr HD 405.3 |
2.3.10 |
|
5.4 |
Complete cable - Flame propagation: |
|
|
|
|
|
(a) One vertical cable with burner |
T,S |
HD 406.1 |
HD 405.1 |
|
|
(b) Cables in vertical furnace |
T.S |
HD 605, 4.1.2 |
2.3.9 |
Clause numbers refer to this section unless otherwise stated
Table 4 - Schedule of tests for cables with metallic screen (Protected against electromagnetic disturbances)
|
1 |
2 |
3 |
4 |
5 |
|
Ref |
Test |
Category |
Test method |
Requirement given in |
|
No |
|
of test |
described in: |
Clause * |
|
1. |
Electrical tests |
|
|
|
|
1.1 |
Conductor resistance |
T.S |
HD 605, 3.1.1 |
4.3.1 |
|
1.2 |
Screen resistance |
T.S |
HD 605, 3.1.1 |
4.3.6 |
|
1.3 |
Voltage test on complete cable (3.5kV ac for 15 min) |
T |
HD 605, 3.2.1 |
2.3.1.1 |
|
1.4 |
Voltage test on complete cable (2.6kV ac for 15 min) |
R |
HD 605, 3.2.1 |
2.3.1.2 |
|
1.5 |
Insulation resistance test: |
|
|
|
|
|
(a) Core |
T.S |
HD 605. 3.3.1 |
2.3.2.1 |
|
1.6 |
Voltage test on oversheath: |
|
|
|
|
|
(a) Spark test or |
R |
HD 605, 3.6.2 or |
2.3.3 |
|
|
(b) Voltage test |
|
HD 605, 3.2.3.1 |
|
|
1.7 |
Transfer impedance measurement |
T |
HD 605, 3.7 |
2.3.5 |
|
2. |
Provisions covering constructional and dimensional characteristics |
|
|
|
|
2.1 |
Checking of compliance with constructional |
|
Inspection and |
|
|
|
provisions |
T.R |
manual tests |
4.3 & Part 1, 5 |
|
2.2 |
Conductor material and construction |
T.S |
Visual examination |
4.3.1 & Part 1, 5.1 |
|
2.3 |
Insulation: |
|
|
|
|
|
(a) Application |
s |
Visual examination |
Part 1, 5.2.2 |
|
|
(b) Thickness |
T.R |
HD 605, 2.1.1 |
4.3.2 & Part 1, 5.2.3 |
|
2.4 |
Core identification |
s |
Visual examination and measurement |
2.1.1 & Part 1, 4 |
|
2.5 |
Inner sheath: |
|
|
|
|
|
(a) Application |
s |
Visual examination |
Part 1, 5.5.2 |
|
|
(b) Thickness |
T.R |
HD 605, 2.1.2 |
4.3.4,2 & Part 1, 5.5.3 |
|
2.6 |
Metallic screen (shield): |
|
|
|
|
|
(a) Overlapping |
T |
Measurement |
4.3.6 |
|
2.7 |
Oversheath: |
|
|
|
|
|
(a) Application |
s |
Visual examination |
Part 1, 5.7.2 |
|
|
(b) Thickness |
T.R |
HD 605, 2.1.2 |
4.3.7 & Part 1, 5.7.3.1 |
|
2.8 |
Cable marking and identification |
T.R |
Visual examination and measurement |
2.2.2 & Part 1, 3 |
Clause numbers refer to this section unless otherwise stated.Table 4 (Concluded)
|
1 |
2 |
3 |
4 |
5 |
|
Ref |
Test |
Category |
Test method |
Requirement given in |
|
No |
|
of test |
described in: |
Clause* |
|
3. 3.1 |
Non-electrical tests for insulating and sheathing materials Insulation |
T |
Table 2 |
Table 2 |
|
3.2 |
Inner sheath |
T |
Table 2 |
Table 2 |
|
3.3 |
Oversheath |
T |
Table 2 |
Table 2 |
|
3.4 |
Tensile test in the state as delivery: (a) Insulation |
s |
HD 505.1.1, 9.1 |
Table 2, 1.1 |
|
|
(b) Inner sheath |
s |
HD 505.1.1, 9.2 |
Table 2, 1.1 |
|
|
(c) Oversheath |
s |
HD 505.1.1, 9.2 |
Table 2, 1.1 |
|
3.5 |
Tensile test before and after ageing in air oven:
|
s |
HD 505.1.2, 8.1 & HD 505.1.1, 9.1 |
Table 2, 1.1 & 1.2 |
|
|
(c| Oversheath |
s |
HD 505.1.1,9.2 |
Table 2, 1.1 & 1.2 |
|
4. 4.1 |
Test for complete cables Bending test |
s T.S |
HD 505.1.1, 9.2 HD 605, 2.4.1.1 |
Table 2, 1.1 & 1.2 2.3.6.2 |
|
5. 5.1 |
Tests related to fire conditions Complete cable - Flame propagation: (a) One vertical cable with burner |
T |
HD 405.1 |
HD 405.1 |
|
|
(b) Cables in vertical furnace |
T |
HD 605, 4.1.2 |
2.3.9 |
Clause numbers refer to this section unless otherwise stated.
Table 5 - Conductor data of power cables with metallic armour (Preferred cross-sections and nature of conductor)
|
Number of conductors |
Copper conductor |
Aluminium conductor |
|
|
Nominal cross-sectional area (circular compacted) (mm2) |
Nominal cross- sectional area (circular or sector-shaped compacted) (mm2) |
||
|
1 |
|
240 - 400 |
|
|
2 or 3 |
2.5-6-16-35 |
95- 150- 240 |
|
|
4 |
2.5 - 6 - 16 - 35 |
Phases 95 150 |
Neutral 50 70 |
Table 6 - Conductor data of control cables with or without metallic armour
|
Circular copper conductor (non-compacted) |
|
|
Nominal cross- sectional area (mm2) |
0.5 1 1.5 |
|
Number of conductors |
2-3-4-7-9-12-14-19-27-37-48 |
Table 7 - Conductor data of cables with metallic screen
|
Nominal cross-sectional area (mm2) |
Number of circular copper conductors |
||||||||
|
1.5* 4 6 10 16 25 |
2 2 2 2 2 |
4 4 4 4 4 |
7 7 7 8 8 |
10 10 10 |
14 14 14 |
19 19 19 |
27 |
37 |
|
|
3 x 25 + 16 3 x 50 + 25 3 x 95 + 35 |
-і 1-3 + 1 J |
||||||||
