|
S.No. |
Test
Parameters |
Unit |
Observed
Value |
Specified
Value |
| |
|
|
|
|
|
1 |
Overall
Diameter |
mm |
10.80
10.50 |
10.90 Max.
10.40 Min. |
|
2 |
Radial
Thickness Of Insulation |
mm |
0.600 |
0.584 min. |
|
3 |
Thickness Of Nylon Sheath/Braid
with lacquer |
mm |
0.365
0.200 |
0.381 Max.
0.127 Min. |
|
4 |
No. Of
Strands |
Nos |
471 |
471 |
|
5 |
Diameter
Of Single Strand |
mm |
0.300 |
0.300 |
|
6 |
Conductor
Resistance at 20deg C/900m |
Ohm |
0.440 |
0.517 Max. |
|
7 |
Elongation
Of Single Strand |
% |
15.0 |
13.5 |
|
8 |
Voltage
proof test on core in water |
Kv |
OK |
1.5
For
15 Minutes |
|
9 |
I.R. on
core in water at 20degC/km |
M.Ohm |
20 |
13.50 Min. |
|
10 |
Flexibility
:
a) Bend Test
|
|
OK |
Shall Pass |
|
b) Voltage proof
test in water |
Kv |
OK |
1.5
For
1 Minute |
|
11 |
Heat
ageing in air oven at 120degC
for 120Hrs, a) Bend Test |
|
OK |
Shall Pass |
|
b)
Dielectric test in 5% Nacl Solution |
Kv |
OK |
1.5
For
1 Minute |
|
c) Visual
examination of Conductor |
Visual |
OK |
Shall Pass |
|
12 |
Cure test
@ 115degC for 1 hour |
|
|
Shall Pass |
| |
|
|
|
|
