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All cores should be subjected either to the spark test or to the Voltage and insulation Resistance.
1.1 Spark Test (Reference No. STD BS 5099)
|
Tabulated Radial Thickness of Insulation mm |
Test Voltage (k/V) |
||
|
Above |
Up to Including |
a.c (r.m.s) |
d.c |
|
--- 1.0 1.5 2.0 2.5 |
1.0 1.5 2.0 2.5 --- |
6 10 15 20 25 |
9 15 23 30 38 |
1.2 Voltage Test
|
Tabulated Radial Thickness of Insulation mm |
Test Voltage (k/V) |
|
|
Above |
Up to Including |
a.c (r.m.s) |
|
--- |
0.7 |
1.5 |
1.3Insulation Resistance Test
The insulation resistance of the length of cable in M Ohm Km should not be less than the minimum value specified in tables.
2.1 Conductor Resistance Test
The D.C resistance of each conductor is measured on the cables factory length which shall comply with the values as given in the Table-1 after correction to 20 oC by applying correction factors as indicated in Table B.
2.1 Conductor Resistance Test
The D.C resistance of each conductor is measured on the cables factory length which shall comply with the values as given in the Table-1 after correction to 20 oC by applying correction factors as indicated in Table B.
2.2 Voltage test (Twin and Multi Core Cables)
2.3 Insulation Resistance Test
Immediately after the completion of voltage test described in (2.2). The insulation resistance test is carried out.