Table 1В Requirements and tests for the sheathing compounds
1 |
2 |
3 |
4 |
5 |
6 |
|
Designation of compound |
|
MHN 1 |
MHN 2 |
Test according |
|
Max. rated conductor temperature |
°С |
90 |
90 |
to |
|
Mechanical properties |
|
|
|
|
1 1.1 |
Before ageing Tensile strength, min. |
N/mm! |
7.0 |
7.0 |
EN 60811-1-1 Sub-clause 9.2 |
1.2 |
Elongation at break, min. |
% |
125 |
125 |
|
2 2.1 |
Ageing in air oven - temperature - tolerance, max. - duration |
°С К d |
100 ±2 7 |
100 ±2 7 |
EN 60811-1-2 Sub-clause 8.1 |
3 3.1 |
After ageing Tensile strength: - value, min. - variation, max. |
N/mm2 % |
7.0 -30 |
7.0 -30 |
EN 60811-1-1 Sub-clause 9.2 |
3.2 |
Elongation at break: - value, min. - variation, max. |
% % |
100 ±40 |
100 + 40 |
|
|
Thermal characteristics |
|
|
|
|
4 4.1 |
Hot set test
|
°С К min N/mm2 |
200 ±3 15 0.20 |
- |
EN 60811-2-1 Clause 9 |
4.2 |
Max. elongation under load |
% |
175 |
|
|
4.3 |
Max. permanent elongation after cooling |
% |
25 |
- |
|
5 5.1 |
Pressure test at high temperature
|
°С К h |
"" ■ |
90 + 2 4 |
EN 60811-3-1 Sub-clause 8.2 |
5.2 |
Max. value of indentation |
% |
- |
50 |
|
Table 1В
Requirements and tests for the sheathing compounds (concluded)
1 |
2 |
3 |
4 |
5 |
6 |
|
Designation of compound |
|
MHN 1 |
MHN 2 |
Test according |
|
Max. rated conductor temperature |
°С |
90 |
90 |
to |
6 6.1 |
Behaviour at low temperature Cold bending test1’* - temperature - tolerance |
°С к |
-15 ±2 |
-15 ±2 |
EN 60811-1-4 Sub-clause 8.2 |
6.2 |
Cold elongation test'11 - temperature - tolerance - elongation (min.) |
°С к % |
-15 ±2 20 |
-15 ±2 20 |
EN 60811-1-4 Sub-clause 8.4 |
6.3 |
Cold impact test111 - temperature - tolerance |
°С к |
-15 ±2 |
-15 + 2 |
EN 60811-1-4 Sub-clause 8.5 |
7 |
Corrosivity of combustion gases - temperature - test duration - pH value (min.) - conductivity (max.) |
°С h /jSmm1 |
935 0.5 4.3 10 |
935 0.5 4.3 10 |
HD 602 |
The test only has to be carried out if it is required in the relevant regulations
Table 2
Schedule of tests
1 |
2 |
3 |
4 |
5 |
|
Tests |
Type of test |
Requirements |
Test methods according to |
1 |
Electrical tests |
|
|
|
1.1 1.2 |
Conductor resistance Resistance of concentric conductor screen |
R, T R, T |
3.3.1 and HD 383 3.3.1 and HD 383 |
HD 605 Subclause 3.1.1 HD 605 Subclause 3.1.4 |
1.3 |
Dielectric strength of the complete cable Test voltage 3.5kV Test duration 5 min |
R, T |
No breakdown |
HD 605 Subclause 3.2.1 |
1.4 |
Volume resistivity Test duration 1 h Temperature of water bath (20 ± 2) °С (90 ±2) °С |
T |
Table 1A >10’2 Q.cm >109 Q.cm |
HD 605 Subclause 3.3.1 |
|
Test voltage 80-500Vd.c. |
|
|
|
1.5 |
Surface resistance of the sheath |
T |
>109 Q.cm |
HD 605 Subclause 3.4 |
2 |
Test of cable design and dimensions |
|
|
|
2.1 |
Test of accordance with the design definition |
T, S |
|
visual inspection |
2.2 |
Thickness of insulation, minimum value |
T, s |
Table 4 |
EN 60811-1-1 Sub-clause 8.1 |
2.3 |
Thickness of sheath, minimum value |
T, S |
3.3.6 |
EN 60811-1-1 Sub-clause 8.2 |
3 |
Mechanical properties of crosslinked insulation compounds |
|
|
|
3.1 |
Tensile strength and elongation at break before and after ageing |
T |
Table 1A |
EN 60811-1-1 Sub-clause 9.1 and EN 60811-1-2 Sub-clause 8.1 |
3.2 |
Ageing in air oven |
T |
|
EN 60811-1-2 Sub-clause 8.1 |
3.3 |
Hot set test |
T |
|
EN 60811-2-1 Clause 9 |
Table 2
Schedule of tests (continued)
1 |
2 |
3 |
4 |
5 |
|
Tests |
Type of |
Requirements |
Test methods |
|
|
test |
|
according to |
4 |
Mechanical properties of thermoplastic insulation compounds |
|
|
|
4.1 |
Tensile strength and elongation at |
T |
Table 1A |
EN 60811-1-1 |
|
break before and after ageing |
|
|
Sub-clause 9.1 and EN 60811-1-2 Sub-clause 8.1 |
4.2 |
Ageing in air oven |
T |
|
EN 60811-1-2 Sub-clause 8.1 |
4.3 |
Shrinkage test |
T |
|
EN 60811-1-3 Clause 10 |
4.4 |
Pressure test at high temperature |
T |
|
EN 60811-3-1 Sub-clause 8.1 |
5 |
Mechanical properties of crosslinked |
T |
|
EN 60811-1-1 |
|
sheath compounds |
|
|
Sub-clause 9.2 |
5.1 |
Tensile strength and elongation at |
|
Table 1В |
and EN 60811-1-2 |
|
break before and after ageing |
|
|
Sub-clause 8.1 |
5.2 |
Ageing in air oven |
T |
|
EN 60811-1-2 Sub-clause 8.1 |
5.3 |
Hot set test |
T |
|
EN 60811-2-1 Clause 9 |
6 |
Mechanical properties of thermoplastic sheath compounds |
|
|
|
6.1 |
Tensile strength and elongation at |
T |
Table 1В |
EN 60811-1-1 |
|
break before and after ageing |
|
|
Sub-clause 9.2 and EN 60811-1-2 Sub-clause 8.1 |
6.2 |
Ageing in air oven |
T |
|
EN 60811-1-2 Sub-clause 8.1 |
6.3 |
Hot pressure test |
T |
|
EN 60811-3-1 Sub-clause 8.2 |
7 |
Compatibility test |
T |
|
EN 60811-1-2 Sub-clause 8.1.4 |
7.1 |
Ageing in the air oven (piece of complete cable) - temperature °С |
|
100 |
|
|
- tolerance К |
|
±2 |
|
|
- duration d |
|
7 |
|
7.2 |
Result to be obtained |
|
Tables 1A and 1 B, Clause 3 |
|
Table 2
Schedule of tests (concluded)
1 |
2 |
3 |
4 |
5 |
|
Tests |
Type of test |
Requirements |
Test methods according to |
8 8.1 |
Low temperataure tests Cold bend test cores up to and including 12.5mm diameter complete cables up to and including 12.5 mm diameter |
T |
no cracks |
EN 60811-1-4 Sub-clause 8.1 and 8.2 |
8.2 |
Cold elongation test insulation of cores above 12.5mm diameter sheath of cables above 12.5mm diameter |
T |
Tables 1A and IB, Clause 6 |
EN 60811-1-4 Sub-clause 8.3 and 8.4 |
8.3 |
Cold impact test |
T |
no cracks |
EN 60811-1-4 Sub-clause 8.5 |
9 9.1 |
Flame propagation test Preparation of test a) Cables with an outer diameter of < 25mm have to be mounted without spacing, cables with outer diameter > 25mm have to be mounted with a spacing of at least 0.5d but not more than 20mm. |
|
|
HD 405.3 |
|
b) The number of samples has to be chosen in such a way that at least 180mm of the ladder width is covered. |
|
|
|
|
c) The distance of the test samples to the upright rungs of the standard ladder should be between 90 and 120mm. |
|
|
|
|
d) Mixture of propane and compressed air (890±60)l/h propane (4500+100) l/h of compressed air |
|
|
|
9.2 |
Result to be obtained |
|
Flames shall be self extinguishing max. extent of charrring may not reach the upper end of the samples |
|
10 |
Corrosivity of combustion gases |
T |
Table 1A and IB |
HD 602 |
11 |
Cable marking |
T |
2.2 |
visual inspection |
Table 3 Assignment of reduced conductors to phase conductors
a
Nominal cross-sectional area of phase conductors mm2 |
Nominal cross-sectional area of reduced conductors mm2 |
25 |
16 |
35 |
16 |
50 |
25 |
70 |
35 |
95 |
50 |
120 |
70 |
150 |
70 |
185 |
95 |
240 |
120 |
300 |
150 |
400 |
185 |
500 |
240 |
Insulation wall thickness
Nominal cross-sectional area of conductor mm2 , |
Insulation thickness specified value mm |
1.5 |
1.0 |
2.5 |
1.0 |
4 |
1.0 |
6 |
1.0 |
10 |
1.0 |
16 |
1.0 |
25 |
1.2 |
35 |
1.2 |
50 |
1.4 |
70 |
1.4 |
95 |
1.6 |
120 |
1.8 |
150 |
1.8 |
185 |
2.0 |
240 |
2.2 |
300 |
2.4 |
400 |
2.6 |
500 |
2.8 |